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Kaon LT Meetings » History » Version 775

Nathan Heinrich, 04/04/2024 01:44 PM

1 116 Richard Trotta
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2 1 Richard Trotta
3 537 Garth Huber
h1. *KaonLT/PionLT Weekly Meetings*
4 1 Richard Trotta
5 293 Garth Huber
KaonLT/PionLT collaboration analysis meetings. Please add your talk to the meeting ahead of time. Add the newest meeting to the top of the list!
6 262 Richard Trotta
7 645 Vijay Kumar
---
8 284 Vijay Kumar
9 685 Abdennacer Hamdi
h2. 2024 Meetings
10 684 Abdennacer Hamdi
11
---
12
13 774 Nathan Heinrich
h3. April 4, 2024
14
15
* Nathan
16
** Update on Lumi, working on set of Lumi data that has BCM calibrated
17 775 Nathan Heinrich
** Found that we'll need zero current offset and that there were offsets already applied: attachment:lumiUpdate2024-04-04.pdf
18 774 Nathan Heinrich
*** Full set of plots: attachment:Yield_9-2pt1Carbon.pdf attachment:Yield_9-2pt1Carbon.pdf
19
20
---
21
22 770 Garth Huber
h3. April 2, 2024
23
24
* Special meeting to discuss BSA uncertainties
25
* Garth's Notes attachment:bsa_24apr02.txt
26 771 Alicia Postuma
* Alicia's slides attachment:Asym_errors.pdf
27 770 Garth Huber
28
---
29
30 754 Richard Trotta
h3. March 28, 2024
31
32 767 Garth Huber
* Garth's Notes attachment:mtg_24mar28.txt
33 754 Richard Trotta
* Richard
34
** attachment:KaonLTMeeting3_28_24.pdf
35
** SHMS xptar had an odd distribution. Upon further inspection, the RF cut was the cause. There is a correlation between xptar and the RF which must have a path length correction. For KaonLT data (>Q2=0.5), the RF will no longer be used.
36 756 Abdennacer Hamdi
* Nacer
37 767 Garth Huber
** The RF time cut is the most efficient event selection among PID cuts, particularly to select kaons (lambda peak) and suppress pions (neutron peak) for 3.8 GeV and 4.9 GeV kaon LT data, see attachment:20240328_kaonLT_event_selection_nacer.pdf
38 768 Alicia Postuma
* Alicia
39
** Updated asymmetry plots: attachment:Asym_Postuma_Mar28.pdf
40 772 Muhammad Junaid
* Junaid
41
** Made HeePCoin plots for offset studies.
42
** attachment:HeePCoin_Offset_Study.pdf
43 773 Muhammad Junaid
44 754 Richard Trotta
45 748 Nathan Heinrich
h3. March 21, 2024
46
47 753 Garth Huber
* Garth's Notes attachment:mtg_24mar21.txt
48 748 Nathan Heinrich
* Nathan
49 750 Nathan Heinrich
** Got lumi script running. Initial plots of lumi: attachment:Yield_9-2C.pdf
50 749 Nathan Heinrich
** Still need to do alot of bug fixing
51 751 Ali Usman
* Ali
52
** Update on pi-delta BSA analysis.
53 752 Ali Usman
** A comparison b/w SIDIS and RHO is done to see which one fits the data better. SIDIS wins the race since RHO results in a bad fit.
54 751 Ali Usman
** Will be able to do 2 t-bins for higher statistic data (Q2 = 3.0, W = 3.14)
55
** attachment:KaonLT_Meeting_Mar_21_2024.pdf
56 769 Alicia Postuma
* Alicia
57
** Implemented delta correction in hcana: attachment:Asym_Postuma_Mar21.pdf
58 748 Nathan Heinrich
59
---
60
61 736 Vijay Kumar
h3. March 14, 2024
62
63 740 Garth Huber
* Garth's Notes attachment:mtg_24mar14.txt
64 736 Vijay Kumar
* Vijay
65
** Good news, got all yield ratio plots correct.
66
** Got an Unseparated cross-section.
67
** Got a Separated cross-section.
68 737 Vijay Kumar
** Excited to have the first LT sep plots today. attachment:Vijay_update_Mar14_24.pdf
69 743 Ali Usman
* Alicia
70 741 Alicia Postuma
** Missing mass cut values for asymmetry: MMpi<1.01+/-0.02
71
** Determined reasonable delta correction
72
** Trying to compile hcana to implement delta correction there
73
** attachment:Asym_Mar14.pdf
74 743 Ali Usman
* Ali
75 745 Ali Usman
** Preliminary plot for pi-Delta MM shape study (Q2 = 3.0, W = 3.14 center). This includes all the MC with new resolution factor.
76 742 Ali Usman
** attachment:Q3p0W3p14center_pos.pdf
77 746 Muhammad Junaid
* Junaid
78
** Updated ltsep package for PionLT
79
** Added ngcer variables to ltsep package.
80
** Updated RF offset for HeePCoin PionLT data
81
** Updated HeeP Coin scripts.
82
** Finalized HeePCoin PID cuts.
83
** attachment:HeePCoin_PID_Study.pdf
84 736 Vijay Kumar
85 721 Nathan Heinrich
h3. March 7, 2024
86 722 Nathan Heinrich
87 725 Garth Huber
* Garth's Notes attachment:mtg_24mar07.txt
88 723 Nathan Heinrich
* Nathan
89 1 Richard Trotta
** Made Quick PID efficiency plots for SHMS NIM paper. Found HGC zero bin entries still an issue. "NIMpaperPidPlots.pdf":https://redmine.jlab.org/attachments/2394 
90 722 Nathan Heinrich
** Without zero bin cut: "SHMS_Pion_PIDeffPlots_16504.pdf":https://redmine.jlab.org/attachments/2395 with zero cut: "SHMS_Pion_PIDeffPlots_16504_v2.pdf":https://redmine.jlab.org/attachments/2396
91 724 Richard Trotta
** Lumi without zero bin cut: "SHMS_Electron_PIDeffPlots_16759.pdf":https://redmine.jlab.org/attachments/2397
92
* Richard
93
** attachment:KaonLTMeeting3_7_24.pdf
94
** Fixed issue with shrinking xsect on each iteration. The issue was a mistake in absolute error being mistaken for relative error when calculating xsect error.\
95
** Pion subtraction implemented with not much change in xsect beyond lowest t-bins. Smaller t-bins see a 50% reduction with MM cut
96
** Iteration script works, now just trying to find best parameterization. Particularly for Q2=3.0, W=2.32 where eps_low>eps_hi
97 742 Ali Usman
* Ali
98
** SIMC resolution study is complete. The final resolution factor for SHMS DC is 3.5.
99
** Good agreement between data and MC in each t-bin. Higher Q2 data has better agreement.
100
** Also checked target quantities with and without resolution tunning. No issues in reconstruction with resultion tunning.
101
** attachment:KaonLT_Meeting_Feb_15_2024.pdf
102 722 Nathan Heinrich
103
---
104 721 Nathan Heinrich
105 713 Vijay Kumar
h3. February 29, 2024
106 1 Richard Trotta
107 715 Garth Huber
* Garth's Notes attachment:mtg_24feb29.txt
108 714 Richard Trotta
* Richard
109
** attachment:KaonLTMeeting2_29_24.pdf
110
** Issue with iteration script where cross section error decreases with each iteration. Still being investigated
111
** Unseparated cross-section plots are coming along; still work to be done on improving them.
112
** Interesting sigL/T vs t behavior with lower W values (very tentative)
113 713 Vijay Kumar
* Vijay 
114 716 Garth Huber
** I found an interesting plot of pion and kaon form factors at high Q2 from lattice QCD in the ICTS workshop. The speaker of the talk was Swagato Mukherjee (BNL).  
115 713 Vijay Kumar
 attachment:Lattice_form_factor.pdf
116 717 Alicia Postuma
* Alicia
117
** Update on delta correction to missing mass: not necessary in every setting
118
** Need to determine exactly what correction to apply for HMS momentum > 5.0
119
** attachment:Postuma_MissMass_Feb29.pdf
120 726 Garth Huber
* Nacer
121
** Tracking efficiency quality check finalized for 3.8 GeV and 4.9 GeV data, and the corresponding run lists are updates see the talk attachment:20240229_kaonLT_nacer.pdf
122 730 Muhammad Junaid
* Junaid
123
** Selected 9 HeeP Coin settings out of 15 to do HeeP Studies
124 732 Muhammad Junaid
** Prioritize on the basis of physics momentums and angles settings
125 730 Muhammad Junaid
** attachment:HeeP_Studies_PionLT.pdf
126 713 Vijay Kumar
127 711 Richard Trotta
h3. February 22, 2024
128
129 712 Garth Huber
* Garth's Notes attachment:mtg_24feb22.txt
130 711 Richard Trotta
* Richard
131
** attachment:KaonLTMeeting2_22_24.pdf
132
** Model cross-sections were compared for most of the Q2s. There were several iterations which included a +0.2 term to the t-dependence of sigL. sigT now used the model from Tanja's "global analysis":https://journals.aps.org/prc/pdf/10.1103/PhysRevC.85.018202 which is coming along. Pion subtraction still needs to be incorporated and things should improve further from there.
133 718 Alicia Postuma
* Alicia
134
** Still trying to implement delta correction to missing mass
135
** attachment:Postuma_MissMass_Feb22.pdf
136 735 Muhammad Junaid
* Junaid
137
** Updated DEF file (Included NGC variables)
138
** Updated DEF-Cut files for HeeP, Lumi, Prod and pTRIG6 data (Included ngcer cuts).
139
** Generated BCM currents for PionLT data.
140
** Replayed PionLT data Pass1_v2 (included BCM current params)
141
** Finalized Tracking Efficiencies for PionLT data (HeeP, Lumi, Prod and pTRIG6) - Removed outliers
142
** attachment:Efficiency_Studies_PionLT.pdf
143 711 Richard Trotta
144 704 Richard Trotta
h3. February 15, 2024
145
146 705 Garth Huber
* Garth's Notes attachment:mtg_24feb15.txt
147 707 Garth Huber
* Garth's GitHub meeting Notes attachment:GitHub_mtg_24feb14.txt
148 704 Richard Trotta
* Richard
149
** attachment:KaonLTMeeting2_15_24.pdf attachment:dsig_totstaterror_calc.pdf
150
** Properly Calculated Statistical Uncertainties
151
*** Ali and I went through and properly implemented statistical uncertainties (double-checked with Garth on Monday). This included updating HMS cerenkov and calorimeter efficiencies that needed to use a "golden singles run" to avoid contamination. A bug in the ratio per bin was fixed so that proper average ratio per bins were found.
152
** SIMC Aerogel/HGCer geometric cuts were implemented.
153
** Particle Subtraction Script was updated. Just need pion samples from Ali.
154
** Beginning Unsep-xsect Systematic Studies
155
** Continued issues with generating new parameterization
156
*** Unsep xsect fits are starting to look good, but the script to generate improved parameterization generates insane fits. Likely a change to the model is needed. In particular, sigT will need adjustments.
157 708 Alicia Postuma
* Alicia
158
** Summary of next steps in asymmetry analysis
159
** Discussion of missing mass using delta correction: unable to reproduce hcana MMpi - learned that this is expected. Will implement a version of Richard's code from recon_hcana 
160
** Exploring -t dependence of different data and simc files
161
** Slides: attachment:Asymmetry_Postuma_2024-1.pdf
162 704 Richard Trotta
163 709 Ali Usman
* Ali
164
** Update on the SIMC resolution study for Kaon-LT 10.6 GeV data.
165
** SIMC SHMS DC resolution was tunned to have better agreement b/w data nnd MC. A large resolution multiplication factor of 9 is used. This will hopefully decrease with improvement in data resolution.
166
** SIMC HMS DC resolution (suggested by Dave G.) doesn't make a huge difference.
167 710 Ali Usman
** The resolution of MC looked worse than data after t-bining. This will be improved with a lower multiplication factor.
168 709 Ali Usman
** attachment:KaonLT_Meeting_Feb_15_2024.pdf
169
170 704 Richard Trotta
---
171
172 702 Richard Trotta
h3. February 8, 2024
173
174 703 Garth Huber
* Garth's Notes attachment:mtg_24feb08.txt
175 702 Richard Trotta
* Richard
176
** attachment:KaonLTMeeting2_8_24.pdf
177
** SIMC Weight
178
*** In order to get Ydata/Ysimc to be even close to unity I needed to divide the SIMC weight by 10^6. I was applying the weight for the histograms but not binned data. 
179
** SIMC MM
180
*** The long radiative tail from simc MM has mostly been resolved by using the correct decay length and properly recalculating the MM using recon_hcana.
181
** MM PID Analysis
182
*** Played around with MM cuts to see PID of leak through/higher K+ channels.
183
*** Increasing aerogel cut from aero > 3.0 to > 4.5 should resolve some of the issues, but more probably needs to be done.
184
** MM cut: Yield Comparison
185
*** Using an MM cut of 1.10 < MM < 1.18 produced shockingly consistent yields for Q2=2.115
186
187
---
188
189 700 Richard Trotta
h3. February 1, 2024
190
191 701 Garth Huber
* Garth's Notes attachment:mtg_24feb01.txt
192 700 Richard Trotta
* Richard
193
** attachment:KaonLTMeeting2_1_24.pdf
194
** Dave’s Delta Adjustments
195
*** Dave's adjustment to HMS delta to correct for the hsxpfp correlation is implimented.
196
** The weight iteration script is working, but there is an issue with either the SIMC weight or unit charge which is causing me to include a 10^-6 factor in the SIMC weight which messes up the rest of the iteration scripts.
197
198
---
199
200 696 Richard Trotta
h3. January 25, 2024
201
202 697 Garth Huber
* Garth/Richard Notes attachment:mtg_24jan25.txt
203 696 Richard Trotta
* Richard
204
** attachment:KaonLTMeeting1_24_24.pdf
205
** Issues with dummy runs
206
*** The dtype error for some dummy runs was caused by empty trees when applying the CT cuts.
207
*** The source of these fails cuts was because the CT offset applied at the replay level was skipped for these runs and thus the CT peak was not where the cut expected.
208
** Weird t-distribution
209
*** Multiple peaks seen in the t-distribution were caused by various particle leakthrough.
210
*** This was cleaned up a bit by implimenting a HMS cer cut > 1.5, but there are still significant particles that need to be cleaned up.
211
** Fixed binning issue
212
*** Issue with the binning script was causing many average kin per bin values to be zero. 
213
*** The scripts were completely rewritten and things look very nice now.
214
** Separated Xsects Script
215
*** Finished debugging the script that separates the cross section. 
216
*** The binning issue was hiding other FORTRAN related issues, in particular, with the input files that are generated.
217
** SIMC MM
218
*** Very broad and long tail on kaon MM generated by SIMC. Still under investigation.
219
** SIMC High Q2
220
*** There were negative MM and other variables being generated by SIMC for high Q2 settings.
221
*** Likely caused by sigT going negative. By setting some of sigT's parameterization to zero, the issue should be resolved. Still under investigation.
222 698 Garth Huber
* Dave
223
** HMS delta-hsxpfp correction for KaonLT data 
224
** attachment:DG_24jan25_hms_hsxpfp.pdf
225 699 Garth Huber
226 696 Richard Trotta
---
227
228 1 Richard Trotta
h3. January 11, 2024
229
230 690 Garth Huber
* Garth's Notes attachment:mtg_24jan11.txt
231 694 Garth Huber
* Garth's GitHub meeting Notes  attachment:GitHub_mtg_24jan10.txt
232 1 Richard Trotta
* Richard
233
** attachment:D1_2024WinterHallCTalk.pdf
234
** Most bad runs (i.e. those replays/analysis files that failed for various regions) for Q2=2.1 have been properly run. There are still a few outstanding runs that need to be further investigated.
235
** Equations for the xsect iteration script have been properly adjusted to match those found in the fortran script of SIMC (physics_iterate.f).
236
** Testing with Q2=2.1 is underway with a minor bug with efficiency calculation that needs to be resolved. Once this is done, this setting will test the xsects iteration and separated xsects scripts.
237 692 Garth Huber
* Dave 
238 695 Garth Huber
** HMS delta-hsxpfp correction for P_HMS=5.292GeV/c  attachment:DG_24jan11_hms_hsxpfp.pptx attachment:DG_24jan11_hms_hsxpfp.pdf
239 689 Richard Trotta
240
---
241
242
h3. January 4, 2024
243
244 693 Garth Huber
* Garth's Notes attachment:mtg_24jan04.txt
245 689 Richard Trotta
* Nacer: beta SHMS calibration attachment:20240104_kaonLT_nacer.pdf
246 688 Richard Trotta
247
---
248
249 683 Garth Huber
h2. 2023 Meetings
250
251
---
252
253 678 Vijay Kumar
h3. December 21, 2023
254 666 Vijay Kumar
255 681 Garth Huber
* Garth's Notes attachment:mtg_23dec21.txt
256 680 Richard Trotta
* Richard
257
** attachment:FinalHeepOffsets_v3.pdf
258
*** Updated heep plots without HGCer cuts, very small change (order of ~0.1 MeV). Also updated with almost final efficiencies (missing Hodo uncern).
259
** attachment:10p6_Prod_2023_12_18.pdf attachment:8p2_Prod_2023_12_18.pdf attachment:6p2_Prod_2023_12_18.pdf attachment:4p9_Prod_2023_12_18.pdf attachment:3p8_Prod_2023_12_18.pdf
260
*** Plots of efficiencies per energy.
261
** attachment:heep_yield.pdf
262 682 Vijay Kumar
*** Heep yield plots without uncertainty. Statistical uncertainty is done, but systematic needs to be finished.
263 677 Vijay Kumar
* Vijay (updated on Dec 27, 2023 (Heep plot))
264 679 Vijay Kumar
** The final summary of the lumi and elastic studies in summer 2019 data. attachment:PionLT_Smmer19_Lumi_elastic_Studies_Dec21_2023.pdf
265 677 Vijay Kumar
** Next Plan: Physics analysis (LT separation) for Q2 = 0.38 GeV2 in the summer 2019 data.
266
267
---
268
269
h3. December 14, 2023
270
271 675 Garth Huber
* Garth's Notes attachment:mtg_23dec14.txt
272 666 Vijay Kumar
* Vijay
273
** The summary of lumi and elastic studies in summer 2019 data.
274
** Carbon Relative Yield: shows a flat line with the -0.243/100uA% slope.
275
** LH2 Relative Yield: shows a slope of -5.06/100uA%.
276
** Average Elastic Cross-Section: determined to 0.9915+-0.0136. 
277 669 Vijay Kumar
** I've compared the study with previous ones. attachment:PionLT_Smmer19_Lumi_elastic_Studies.pdf
278 672 Vijay Kumar
** Next plan: Replay the physics data with determined offsets for the physics analysis. 
279 676 Garth Huber
* Nacer: beta SHMS calibration attachment:20231214_kaonLT_nacer.pdf
280 670 Vijay Kumar
281 666 Vijay Kumar
---
282
283 662 Richard Trotta
h3. December 7, 2023
284
285 665 Garth Huber
* Garth/Nacer Notes attachment:mtg_23dec07.txt
286 662 Richard Trotta
* Richard
287
** attachment:FinalHeepOffsets_v2.pdf
288 664 Richard Trotta
** No Offsets: "10p6":https://redmine.jlab.org/attachments/2266 "8p2":https://redmine.jlab.org/attachments/2262 "6p2":https://redmine.jlab.org/attachments/2263 "4p9":https://redmine.jlab.org/attachments/2264 "3p8":https://redmine.jlab.org/attachments/2265
289
** Offsets: "10p6":https://redmine.jlab.org/attachments/2261 "8p2":https://redmine.jlab.org/attachments/2257 "6p2":https://redmine.jlab.org/attachments/2258 "4p9":https://redmine.jlab.org/attachments/2259 "3p8":https://redmine.jlab.org/attachments/2260
290 663 Richard Trotta
** There was an oversight in the BPM params and they were not pushed to the proper git repo. The offsets had to be redone and the new final offsets are implimented.
291
** Full Replay Pass 3 is underway.
292 662 Richard Trotta
293
---
294
295 657 Nathan Heinrich
h3. November 30, 2023
296
297 661 Garth Huber
* Garth/Nacer Notes attachment:mtg_23nov30.txt
298 657 Nathan Heinrich
* Nathan
299
** Update on Coin Reference time cuts: attachment:RefTimes_Update_2023-11-30.pdf
300 658 Richard Trotta
** Cuts decided, quality checks on data and implementation to be done
301
* Richard
302 660 Richard Trotta
** attachment:KaonLT_FinalHeepOffsets.pdf
303 658 Richard Trotta
** Finalized KaonLT Offsets (including OOP)
304
** In the process of including new offsets in a new replay batch. Should be finished by the end of the weekend.
305 657 Nathan Heinrich
306
---
307
308 644 Ali Usman
h3. November 16, 2023
309 647 Vijay Kumar
310 653 Garth Huber
* Garth/Nacer Notes attachment:mtg_23nov16.txt
311 644 Ali Usman
* Ali
312
** attachment:KaonLT_Meeting_Nov_16_2023.pdf
313
** CoinTime / Beta Leakage Study is now finished. Mark's suggestion to change ptof_tolerance variable from 100 to 2 has fixed the bad beta events. The efficiency for 10.6 and 6.2 / 8.2 GeV Heep dta is almost identical. No need to correct for bad beta / CoinTime events.
314 648 Richard Trotta
* Richard
315
** attachment:KaonLTMeeting11_16_23.pdf
316
** Fixing the SHMS momentum offset and playing around with some decent offsets for all energies besides 10p6. Final numbers are being determined.
317 649 Vijay Kumar
* Vijay
318
** The 'Out of Plane offset' for the summer 2019 data has been comprehensively examined and verified. 
319
** It has proven to be highly effective in addressing the pmy variables of the summer 2019 dataset. attachment:Heep_pmy_summer19_offset.pdf
320 650 Vijay Kumar
321 644 Ali Usman
---
322 646 Vijay Kumar
323 640 Garth Huber
h3. November 9, 2003
324
325
* Garth/Nacer Notes attachment:mtg_23nov09.txt
326
* Richard
327 641 Richard Trotta
** attachment:KaonLTMeeting11_9_23.pdf
328
** A variety of heep offsets were applied, provided by Garth's global results. It is shown that adapting the 5 beam energy global offsets with varying the SHMS momentum offset allows for the best emiss peak positions.
329
** OOP offsets are also looked at, but there is an obvious issue with their implementation that needs to be resolved.
330 654 Garth Huber
* Garth
331 655 Garth Huber
** PMY fit to determine OOP offsets, for 3 different sets of beam energies attachment:offset_pmy2c.pdf
332 656 Garth Huber
333 640 Garth Huber
---
334
335 636 Richard Trotta
h3. November 2, 2023
336
337 638 Garth Huber
* Garth/Nacer Notes attachment:mtg_23nov02.txt
338 636 Richard Trotta
* Richard
339 637 Richard Trotta
** attachment:KaonLTMeeting11_2_23.pdf
340 636 Richard Trotta
** Garth's global high energy offsets were applied. There is a shift in emiss with dpp offset of -0.1%
341
342
---
343
344 642 Garth Huber
h3. October 24, 2023
345
346 643 Garth Huber
* Richard/Tanja/Dave Notes attachment:mtg_23oct24.txt
347 639 Garth Huber
348
---
349
350 627 Vijay Kumar
h3. October 17, 2023
351
352 635 Garth Huber
* Garth/Nacer Notes attachment:mtg_23oct17.txt
353 631 Richard Trotta
* Richard
354 632 Richard Trotta
** "kaon_xsects_Q2p1W2p95":https://redmine.jlab.org/attachments/2210
355
** By setting the parameters for the interference terms to zero, the spike in data between 220-300 deg has been removed, and all ratios are within ~10. The weight iteration script is being debugged and thoroughly checked.
356 627 Vijay Kumar
* Vijay
357
** The testing of global fitting parameters (offsets) for the summer 2019 data (Garth study) has been completed. 
358 630 Vijay Kumar
** It has been determined that employing a single set of offsets for all energies within the summer 2019 dataset does not adequately address all variables.
359 629 Vijay Kumar
** Nonetheless, the W variable exhibits a strong agreement with the SIMC for energies of 2.7 and 4.5 GeV. However, at 3.6 GeV, a slight over-correction is observed.
360 627 Vijay Kumar
** attachment:Vijay_Oct17_23.pdf
361
362
---
363
364 633 Richard Trotta
h3. October 16, 2023
365
366 634 Richard Trotta
* "Notes from Cointime Leakage Meeting":https://redmine.jlab.org/attachments/2211
367 633 Richard Trotta
** Attendance: Alicia P., Ali U., Garth H., Richard T.
368
369
---
370
371 623 Richard Trotta
h3. October 10, 2023
372
373 626 Garth Huber
* Garth/Nacer Notes attachment:mtg_23oct10.txt
374 623 Richard Trotta
* Richard
375 624 Richard Trotta
** attachment:KaonLTMeeting10_10_23.pdf
376 625 Richard Trotta
** As expected, the bifurcation seen in the CT vs beta (E=10.6) is almost non-existent when kaon PID cuts are applied. This is likely due to the lower statistics compared to what Alicia showed with pion PID. A correction should be applied regardless which will determined by the pion data.
377 623 Richard Trotta
378
---
379
380 620 Richard Trotta
h3. October 3, 2023
381
382 622 Garth Huber
* Garth/Nacer/Richard Notes attachment:mtg_23oct03.txt
383 620 Richard Trotta
* Richard
384
** attachment:kaon_xsects_Q2p1W2p95.pdf
385 621 Richard Trotta
** There are some issues with the Right SIMC setting returning zeros, which is part of the cause of the odd values. This is still being debugged, it is unclear if this is a binning or simc issue.
386 622 Garth Huber
* Plots from post-meeting on CoinTime "leakage"
387
** attachment:cointime_mmpi_10p6.pdf
388
** attachment:heep_coin_time_10p6.pdf
389
** attachment:ctime_vs_beta.pdf
390
** attachment:cointime_beta_10p6.pdf
391 613 Richard Trotta
392
---
393
394
h3. September 26, 2023
395
396 617 Garth Huber
* Garth/Nacer Notes attachment:mtg_23sep26.txt
397 613 Richard Trotta
* Richard
398
** attachment:kaon_unsep_xsects_Q2p1W2p95.pdf
399
** Fixed issues with the binning. Adapting parameter optimization code for iterating weights of SIMC
400
** Ratio for low eps of 2.1 looks good (all within 0.1-2.0), but high eps is all over the place.
401 614 Garth Huber
* Alicia
402 618 Alicia Postuma
** Explored coin time: interesting feature depends on missing mass
403
** attachment:log_ctime.pdf dark blue: no MM cut, green: loose MM cut, red: tight MM cut
404
** attachment:mmcointime.pdf 2D plot of coin time vs MM
405 613 Richard Trotta
406 491 Vijay Kumar
---
407
408 612 Garth Huber
h3. September 19, 2023
409
410 617 Garth Huber
* Garth/Nacer Notes attachment:mtg_23sep19.txt
411 619 Alicia Postuma
* Alicia
412
** Finalizing asymmetry analysis: three unresolved questions on PID/event selection
413
** attachment:Asymmetry_Postuma_Sep16.pdf
414 612 Garth Huber
415
---
416
417 609 Garth Huber
h3. September 12, 2023
418
419 617 Garth Huber
* Garth/Nacer Notes attachment:mtg_23sep12.txt
420 611 Garth Huber
* Follow-up meeting on LTsep procedure attachment:LTsep_mtg_23sep13.txt
421 609 Garth Huber
422
---
423
424 605 Vijay Kumar
h3. September 07, 2023
425
426 616 Garth Huber
* Garth/Nacer Notes attachment:mtg_23sep07.txt
427 1 Richard Trotta
* Vijay
428 606 Garth Huber
** SHMS hodoscope individual bar efficiency (pion) studied (Efficiency vs Run Number and Efficiency vs Coin trigger Rate) for all the production Runs. attachment:Vijay_Sep07_2023.pdf
429
* Richard
430 607 Richard Trotta
** "HMS Current Carbon":https://redmine.jlab.org/attachments/2118
431
** "HMS Current LH2":https://redmine.jlab.org/attachments/2119
432
** Finalized slopes for luminosity analysis from linear regression of HMS electron data from carbon and LH2. Carbon is flat (m0=1.688e-05±4.305e-04) and LH2 has a slope of ~8%+/-2% (m0=-7.899e-04±1.829e-04)
433 608 Alicia Postuma
* Alicia
434
** Preliminary Q2 scan: attachment:Scan_prelim.pdf
435 605 Vijay Kumar
436
---
437
438 600 Richard Trotta
h3. August 31, 2023
439
440 603 Garth Huber
* Garth/Nacer Notes attachment:mtg_23aug31.txt
441 600 Richard Trotta
* Richard
442
** attachment:KaonLTMeeting8_31_23.pdf
443 602 Richard Trotta
** "Regression HMS carbon current":https://redmine.jlab.org/attachments/2072
444
** "Regression HMS carbon rate":https://redmine.jlab.org/attachments/2074
445
** "Regression HMS LH2 current":https://redmine.jlab.org/attachments/2071
446
** "Regression HMS LH2 rate":https://redmine.jlab.org/attachments/2073
447
** "Regression SHMS carbon current":https://redmine.jlab.org/attachments/2075
448
** "Regression SHMS carbon rate":https://redmine.jlab.org/attachments/2076
449
** "Regression SHMS LH2 current":https://redmine.jlab.org/attachments/2077
450
** "Regression SHMS LH2 rate":https://redmine.jlab.org/attachments/2078
451 600 Richard Trotta
** Luminosity analysis is finally complete. Results are consistent with Carlos Yero!
452 604 Garth Huber
* Alicia
453 608 Alicia Postuma
** Binning Monte Carlo: attachment:Asymmetry_Postuma_BinMC2.pdf
454 604 Garth Huber
* Garth
455
** In-plane offset global constrained fit attachment:results_summary_23aug28.txt
456
** Out-of-plane offset plot attachment:offset_oop.pdf
457 600 Richard Trotta
458
---
459
460 595 Vijay Kumar
h3. August 24, 2023
461
462 599 Garth Huber
* Garth/Nacer Notes attachment:mtg_23aug24.txt
463 595 Vijay Kumar
* Vijay
464 598 Vijay Kumar
** All efficiencies for the PionLT summer 2019 data, that are required for the cross-section study, have been studied. attachment:Vijay_update_Aug24_2023.pdf
465 596 Vijay Kumar
** Starting soon the elastic cross-section study for the finalization.
466 595 Vijay Kumar
467
468
---
469
470 591 Garth Huber
h3. August 17, 2023
471
472
* Garth's Notes attachment:mtg_23aug17.txt
473 593 Garth Huber
* Alicia
474 592 Alicia Postuma
** Several updates: pi-delta BSA and binning for pi-neutron analysis
475
** attachment:Asymmetry_Postuma_PiDelta.pdf
476
** attachment:Asymmetry_Postuma_Binning2.pdf
477
** Also discussion of error analysis: will use unsimplified version of asymmetry error.
478 594 Nathan Heinrich
* Nathan
479
** Slides from conlsion of hgcer calibration https://redmine.jlab.org/attachments/2063
480 591 Garth Huber
481
---
482
483 589 Richard Trotta
h3. August 10, 2023
484 1 Richard Trotta
485 590 Garth Huber
* Garth's Notes attachment:mtg_23aug10.txt
486 589 Richard Trotta
* Richard
487
** attachment:KaonLTMeeting8_10_23.pdf
488
** t/phi binning of kinematics is looking a bit odd. The procedure is broken down here.
489 592 Alicia Postuma
* Alicia
490
** Working on binning data for pi-neutron asymmetry
491
** attachment:Asymmetry_Postuma_Binning1.pdf
492 589 Richard Trotta
493
---
494
495 588 Garth Huber
h3. July 27, 2023
496
497
* Garth's Notes attachment:mtg_23jul27.txt
498
499
---
500
501 581 Vijay Kumar
h3. July 20, 2023
502
503 587 Garth Huber
* Garth's Notes attachment:mtg_23jul20.txt
504 581 Vijay Kumar
* Vijay
505
** The HMS calorimeter efficiency study is completed from all the ‘Heep coin data’ (3 beam energy) of the summer 2019 run period. attachment:Vijay_July20_2023.pdf
506 584 Vijay Kumar
** The final number of this is *{color:green}@0.9979 ± 4.004e-05@*.  
507 585 Richard Trotta
* Richard
508 586 Richard Trotta
** "kaon_FullAnalysis_Q5p5W3p02_lowe":https://redmine.jlab.org/attachments/2028 "kaon_FullAnalysis_Q5p5W3p02_highe_no_hgcer_cut":https://redmine.jlab.org/attachments/2030 "kaon_FullAnalysis_Q5p5W3p02_highe":https://redmine.jlab.org/attachments/2029
509 585 Richard Trotta
** Peter's kaon PID suggestions are implemented, and the samples are almost there. These include aero>4, RF>+/-0.5, hgcer hole cut. Note: these are with just the spring hole cut (for testing). The proper fall hole cut will be added soon.
510 581 Vijay Kumar
511
---
512
513 580 Garth Huber
h3. July 13, 2023
514
515
* Garth's Notes attachment:mtg_23jul13.txt
516
517
---
518
519 577 Garth Huber
h3. July 6, 2023
520
521
* Garth's Notes attachment:mtg_23jul06.txt
522 578 Vijay Kumar
* Vijay
523 582 Vijay Kumar
** The HMS Calorimeter efficiency study from all the production data at Q2 = 0.38 GeV. attachment:Vijay_July6_2023.pdf
524 577 Garth Huber
525
---
526
527 570 Richard Trotta
h3. June 28, 2023
528
529 573 Garth Huber
* Garth's Notes attachment:mtg_23jun28.txt
530 576 Garth Huber
* Richard's Notes from meeting with Peter attachment:peter_mtg_23jun25.txt
531 572 Vijay Kumar
* Vijay
532
** EDTM Live Time testing for the Lumi study from summer 2019 data is done.
533
** attachment:Vijay_KaonLT_meeting_Jun28_2023.pdf
534 570 Richard Trotta
* Richard
535
** attachment:KaonLTMeeting6_28_23.pdf
536
** Incorporated Peter (and other's) bcm correction. Some things look better, but there are issues with some TLT values, which is throwing yields off. 
537
538
---
539
540 569 Garth Huber
h3. June 22, 2023
541 568 Richard Trotta
542
* Garth's Notes attachment:mtg_23jun22.txt
543 1 Richard Trotta
* Richard
544 570 Richard Trotta
** attachment:KaonLTMeeting6_22_23.pdf
545
** Adjusted aerogel cut for kaons to 3.0 from 1.5 because of a suggestion by Peter. This eliminates a bit more protons that slip through.
546 568 Richard Trotta
547
---
548 562 Richard Trotta
549 574 Garth Huber
h3. June 15, 2023
550
551
* Dave's Notes attachment:mtg_23jun15.txt
552
553
---
554
555 562 Richard Trotta
h3. June 8, 2023
556 1 Richard Trotta
557
* Dave's Notes attachment:mtg_23jun08.txt
558 566 Nathan Heinrich
* Richard
559 565 Garth Huber
** attachment:KaonLTMeeting6_8_23.pdf
560 562 Richard Trotta
** Linear regression for production also includes higher rates (>1kHz) and things still look fine.
561
** LH2 needs cuts to be adjusted, things are pretty off for now. 
562
* Alicia
563
** attachment:Asymmetry_Postuma_Updates_2023.pdf
564 567 Nathan Heinrich
** Errors, models for BSA analysis
565
* Nathan
566
** Finished Noble gas calibration attachment:CalibUpdate_2023-06-15.pdf
567 563 Alicia Postuma
** Uploaded slides from previous update, with a few extra plots that I had 
568 562 Richard Trotta
569
---
570 561 Richard Trotta
571
h3. June 1, 2023
572 564 Garth Huber
573 561 Richard Trotta
* Dave's Notes attachment:mtg_23jun01.txt
574
* Richard
575
** attachment:KaonLTMeeting6_1_23.pdf
576
** Linear regression for coincidence runs were compared to the singles luminosity runs. The slope for the coincidence is approximately an order of magnitude better than the singles.
577
578
---
579 551 Vijay Kumar
580
h3. May 25, 2023
581 555 Garth Huber
582 551 Vijay Kumar
* Garth's Notes attachment:mtg_23may25.txt
583 552 Vijay Kumar
* Vijay
584 553 Vijay Kumar
** HMS Calorimeter efficiency study at Q2 = 0.38 GeV2, for all production and heep coin data. attachment:Vijay_May25_2023.pdf
585 551 Vijay Kumar
** We discussed in our group meeting that it should be ok to take error weighted average of all the heep coin data and then correct the production data. 
586 559 Alicia Postuma
587
* Alicia
588
** Missing mass by bins - added delta: attachment:mm_simcdata2.pdf
589 551 Vijay Kumar
590
---
591 544 Vijay Kumar
592 550 Garth Huber
h3. May 18, 2023
593 549 Garth Huber
594 548 Richard Trotta
* Garth's Notes attachment:mtg_23may18.txt
595
* Ali
596
** Out of Plane offset study from KaonLT Heep Coindata using Tanja's method.
597 544 Vijay Kumar
** attachment:KaonLT_Meeting_May_18.pdf
598
* Vijay
599 546 Vijay Kumar
** Raster checks of the summer 2019 data. attachment:Raster_check_summer19.pdf
600 547 Ali Usman
** I checked the Raster for the summer 2019 data. It looks ok to me. I did not see any slightly tilting issues that Ali saw earlier.
601
** I do not think that we will need to make any changes to the Raster in the summer 2019 data. 
602 548 Richard Trotta
** Please check the attached file and let me know if you have any concerns of the study. 
603
* Richard
604
** attachment:hms_regression_current_carbon.pdf ,attachment:hms_regression_rate_carbon.pdf , attachment:shms_regression_current_carbon.pdf , attachment:shms_regression_rate_carbon.pdf
605 547 Ali Usman
** I did a least square linear regression on all the luminosity data. There is a good consistency between all data settings and even HMS and SHMS.
606 544 Vijay Kumar
607
---
608 538 Vijay Kumar
609
h3. May 11, 2023
610 543 Garth Huber
611 541 Richard Trotta
* Dave's Notes attachment:mtg_23may11.txt
612 539 Richard Trotta
* Richard
613
** attachment:KaonLTMeeting5_11_23.pdf
614 538 Vijay Kumar
** Carlos and I found the error in the HMS scaler rate and slope. I was previously doing some testing of ELREAL vs ELCLEAN and I never reverted my testing from ELCLEAN. Once I changed the variable back to ELREAL, the rates and trends match.
615
* Vijay
616
** HMS Calorimeter efficiency study. attachment:Vijay_May11_2023.pdf
617
** It looks like the efficiency is less from the production data (Q2 = 0.38 GeV2, High e).
618
** I'll take a look at the heep coin data in this run period of the experiment and get the efficiency. 
619 547 Ali Usman
** Hopefully that's number, the efficiency from heep coin data, will be reliable to correct the inefficiency of the detector and correct the data run by run.
620
621
* Ali
622
** Raster Y sign test. Original sign was working fine.
623 1 Richard Trotta
** attachment:KaonLT_Meeting_May_11.pdf
624 558 Alicia Postuma
625
* Alicia
626 560 Alicia Postuma
** Updates on BSA analysis
627 558 Alicia Postuma
** attachment:Asymmetry_Postuma_May1.pdf
628 538 Vijay Kumar
629
---
630 535 Richard Trotta
631
h3. May 4, 2023
632 536 Garth Huber
633 535 Richard Trotta
* Garth's Notes attachment:mtg_23may04.txt
634
* Richard
635
** attachment:KaonLTMeeting5_4_23.pdf
636
** Most of the bad runs have been resolved although there are still a few issues I am sorting out. I also have some plots of the boiling corrections that need to be updated.
637
** I talked with Jacob last week and he checked my luminosity calculations and they seem fine. Carlos and I are meeting tomorrow at 11 am to try and figure out our discrepancies.
638 557 Alicia Postuma
** Found a possible cut issue with the proton peak where cuts were not being properly applied. This is still early in checks.
639
640
* Ali
641
** BPM calibration check. Using new file for Spring 2019 data.
642 559 Alicia Postuma
** attachment:KaonLT_Meeting_May_4.pdf
643
644
* Alicia
645 535 Richard Trotta
** Missing mass by bins - added SIMC: attachment:mm_simcdata1.pdf
646
647
---
648 532 Vijay Kumar
649
h3. April 27, 2023
650 534 Garth Huber
651 532 Vijay Kumar
* Garth/Stephen Notes attachment:mtg_23apr27.txt
652 533 Richard Trotta
* Vijay
653
** Updates of the analysis are attached. attachment:Vijay_Apr27_2023.pdf
654
* Richard
655
** attachment:KaonLTMeeting4_27_23.pdf
656
** There are still issues with the TLT for some carbon lumi runs. Jacob and I are meeting tomorrow to discuss things.
657 532 Vijay Kumar
** Pion subtraction have improved things a lot, but there seems to be issues with the proton subtraction. Adjusted cuts are rerunning and will hopefully help.
658
 
659
---
660 529 Garth Huber
661
h3. April 20, 2023
662
663 530 Nathan Heinrich
* Garth/Stephen Notes attachment:mtg_23apr20.txt
664
* Nathan - Presented updates on the aerogel calibration. attachment:AerogelCalib_2023-04-20.pdf
665 531 Nathan Heinrich
** looks like the calibration has significantly improved the separation between signal and zeros.
666 529 Garth Huber
** for completeness here are all the presentations that Petr gave on the aerogel calibration. attachment:presentation-2020-09-23-kaonlt.pdf attachment:presentation-2020-09-23-kaonlt-summary.pdf
667
668
---
669 523 Ali Usman
670 1 Richard Trotta
h3. April 13, 2023
671 528 Garth Huber
672 524 Vijay Kumar
* Garth's Notes attachment:mtg_23apr13.txt
673
* Vijay
674 523 Ali Usman
** The details of the update are attached here. attachment:Vijay_Apr13_2023.pdf
675
* Ali
676
** Pion PID study for high Q2 KaonLT data.
677
** Spring 2019 data (low e) attachment:KaonLT_Meeting_Apr_13.pdf
678
679
---
680 519 Richard Trotta
681 514 Vijay Kumar
h3. April 6, 2023
682 527 Garth Huber
683 517 Richard Trotta
* Garth/Stephen Notes attachment:mtg_23apr06.txt
684
* Richard
685 518 Richard Trotta
** attachment:KaonLTMeeting4_6_23.pdf
686
** "10p6 c #1":https://redmine.jlab.org/attachments/1841 "10p6 LH2 #1":https://redmine.jlab.org/attachments/1843
687
** "10p6 c #2":https://redmine.jlab.org/attachments/1840 "10p6 LH2 #2":https://redmine.jlab.org/attachments/1844
688
** "10p6 c #3":https://redmine.jlab.org/attachments/1842 "10p6 LH2 #3":https://redmine.jlab.org/attachments/1845
689 517 Richard Trotta
** "8p2 c #1":https://redmine.jlab.org/attachments/1838 "8p2 LH2 #1":https://redmine.jlab.org/attachments/1839
690 521 Richard Trotta
** Luminosity plots are looking pretty good for LH2 and Carbon. There are a few runs with really bad TLT that need to be resolved.
691 517 Richard Trotta
** I still need to meet with Carlos to figure out HMS scaler issue.
692
** In the process of subtracting proton events from MM for kaon to try and clean up the right setting (update next week).
693
694
---
695
696
h3. March 30, 2023
697 515 Garth Huber
698 514 Vijay Kumar
* Garth/Stephen Notes attachment:mtg_23mar30.txt
699
* Vijay
700
** Switched the pion routine in SIMC for the pion cross-section.
701
** Re-ran SIMC to simulate the p(e, e’π+)n reaction for all the settings of Q2 = 0.38 GeV2 data.
702
** More details are in the talk. attachment:Vijay_KaonLT_meeting_Mar30_2023.pdf
703
704
---
705 510 Ali Usman
706
h3. March 23, 2023
707 513 Garth Huber
708
* Garth's Notes attachment:mtg_23mar23.txt
709
* Carlos
710
** relative yields rate dependence
711
https://hallcweb.jlab.org/DocDB/0012/001209/001/rate_dependence_slides_cyero_Mar09_2023.pdf
712
** event types definitions
713 510 Ali Usman
https://hallcweb.jlab.org/DocDB/0012/001208/001/event_type_definitions_COIN_DAQ_cyero_Mar16_2023.pdf
714
* Ali
715 512 Richard Trotta
** Pion PID study for high Q2 data. This update shows Q2 = 2.1, low e (center) setting. attachment:KaonLT_Meeting_Mar_23.pdf
716 511 Richard Trotta
* Richard
717
** attachment:
718
** Carlos and I discussed some oddities in a comparison of our lumi scaler results for the HMS.
719
** "Added quick script to check cuts applied in ltsep python package.":https://github.com/JeffersonLab/UTIL_KAONLT/blob/spring_2022/check_cuts.sh This requires the most update version of the ltsep package, but can be easily downgraded. (just let me know if interested)
720
** Alicia, Ali, and I are meeting tomorrow at 2:30 to discuss the odd right setting peaks.
721 510 Ali Usman
722
---
723 506 Richard Trotta
724
h3. March 16, 2023
725 516 Garth Huber
726 506 Richard Trotta
* Garth/Stephen Notes attachment:mtg_23mar16.txt
727 507 Richard Trotta
* Richard
728 506 Richard Trotta
** attachment:KaonLT_Meeting_3_16_23.pdf
729
** Carlos has been working on the rate dependence issue for the luminosity scans that Casey and I have been seeing. He came to a similar conclusion as me that there will need to be a correction factor that we all agree on that will need to be applied. We are meeting on Monday to discuss things further. "See his slides on the docDB":https://hallcweb.jlab.org/doc-private/ShowDocument?docid=1206
730 509 Nathan Heinrich
** I think I have tracked down the odd issues with right setting that I have been seeing for most energies. I am not sure why, but it seems that something is going wrong with the replays. I tried rerunning them, but the issue has persisted. My initial guess is that it may be an issue with the TDC cuts, since the coin time distributions were looking off previously. 
731
* Nathan
732 506 Richard Trotta
** presented recent updates on the Aerogel calibration: attachment:AerogelCalib_2023-03-16.pdf
733
** will make multiple calibrations based on PMT4+ dependance
734
735 501 Garth Huber
---
736 1 Richard Trotta
737 501 Garth Huber
h3. March 09, 2023
738 513 Garth Huber
739 504 Garth Huber
* Garth/Stephen Notes attachment:mtg_23mar09.txt
740 505 Garth Huber
* Nathan
741 503 Garth Huber
** Presented the an update to the aerogel calibration, including a 3 year old presentation from Petr
742 501 Garth Huber
*** presentation attachment:presentation-2020-09-23-kaonlt-summary.pdf
743
** Also working on the anomalous LD- setting. Things not making sense. Requesting back up.
744
745 1 Richard Trotta
---
746 490 Vijay Kumar
747
h3. March 02, 2023
748 513 Garth Huber
749 494 Richard Trotta
* Garth's Notes attachment:mtg_23mar02.txt
750 495 Richard Trotta
* Richard
751 497 Richard Trotta
** attachment:KaonLTMeeting3_2_23.pdf
752 498 Richard Trotta
** Heep SIMC to hcana script is working for missing momentum and energy variables. "Heep 10p6":https://redmine.jlab.org/attachments/1763 "Heep 8p2":https://redmine.jlab.org/attachments/1759 "Heep 6p2":https://redmine.jlab.org/attachments/1760 "Heep 4p9":https://redmine.jlab.org/attachments/1762 "Heep 3p8":https://redmine.jlab.org/attachments/1761
753 494 Richard Trotta
** Fortran scripts for finding average kinematic values and cross sections is working. "Q2=5.5, W=3.02, high eps":https://redmine.jlab.org/attachments/1767 "Q2=5.5, W=3.02, low eps":https://redmine.jlab.org/attachments/1766
754 490 Vijay Kumar
** My yield ratios are looking a very weird, more investigation is required. "Ratio and xsects for Q2=5.5, W=3.02, low eps":https://redmine.jlab.org/attachments/1765
755
* Vijay
756
** MMpi cut updated.
757
** 8th t-bin adjusted.
758 492 Vijay Kumar
** Events per t-bin calculated for each epsilon setting.
759 490 Vijay Kumar
** Experimental Yield calculation in each bin is done.
760 478 Richard Trotta
** More details of the update are in the slides. attachment:KaonLT_meeting_March02_2023.pdf
761 1 Richard Trotta
762 478 Richard Trotta
---
763 488 Ali Usman
764
h3. Feb 23, 2023
765 513 Garth Huber
766 488 Ali Usman
* Garth/Stephen Notes  attachment:mtg_23feb23.txt
767
* Ali
768
** Update on HMS Cherenkov and Calorimeter efficiency study. attachment:KaonLT_Meeting_Feb_23.pdf
769 1 Richard Trotta
** Looking at wide range of Heep Singles settings from KaonLT data (primarily low e data).
770 488 Ali Usman
771
---
772 486 Vijay Kumar
773
h3. Feb 16, 2023
774 513 Garth Huber
775 484 Vijay Kumar
* Garth/Stephen Notes attachment:mtg_23feb16.txt
776
* Vijay
777
** Updated the diamond cut for Q2 = 0.38 GeV2 data.
778
** t resolution checked from the center setting of SIMC at low epsilon.
779
** Binned the data in t (total 8 bins).
780
** t resolution checked for each t bin too.
781 485 Vijay Kumar
** Working to bin the data in Phi (16 bins).
782 484 Vijay Kumar
** Working to make the Fortran scripts (average_ratios.f, average_kinematics.f & calc_xsect.f) for the summer 2019 data. attachment:KaonLT_meeting_Feb16_2023.pdf
783
784
785
---
786 481 Ali Usman
787
h3. Feb 9, 2023
788 483 Garth Huber
789 481 Ali Usman
* Garth/Stephen Notes attachment:mtg_23feb09.txt
790
* Ali
791
** attachment:KaonLT_Meeting_Feb_09.pdf
792 478 Richard Trotta
** HMS Cerenkov and Calorimeter Study for different kinematics settings.
793
* Richard
794
** attachment:KaonLTMeeting2_9_23.pdf
795 479 Richard Trotta
** Fixed the odd right distribution for Q2=5.5 by applying more strict cointime cuts.
796 326 Garth Huber
** SIMC c++ code is finishing up. It currently just updates pmx, pmy, pmz, pm, and em with the hcana version of calculations. Angles will be the next step once things are finished up.
797 405 Vijay Kumar
798 1 Richard Trotta
---
799 474 Vijay Kumar
800
h3. Feb 2, 2023
801 476 Garth Huber
802 475 Richard Trotta
* Garth/Stephen Notes attachment:mtg_23feb02.txt
803
* Richard
804
** attachment:KaonLTMeeting2_2_23.pdf
805
** The simc portion of the LT_analysis code is working but there is a bug I am sorting out which produces incorrect plots
806
** During a discussion Ali, Vijay, and I had, it was realized that another script is likely missing which I will discuss with Bill. This script is one that combines the phi settings for the fortran code.
807 474 Vijay Kumar
** Dave and I met to go over the fixed variable implementation in SIMC. We fixed a few issues which I am in the process of fixing.
808
* Vijay
809 477 Alicia Postuma
** Update from the analyzed low epsilon data of Q2 = 0.38 GeV2. attachment:KaonLT_meeting_Feb2_2023.pdf
810
* Alicia
811
** Preliminary asymmetry results: Q2=3/W=2.32, Q2=4.4/W=2.74, Q2=2.115/W=2.95, aluminum
812
** attachment:Asymmetry_Postuma_Feb2.pdf
813 474 Vijay Kumar
814
815
---
816 469 Richard Trotta
817
h3. Jan 26, 2023
818 473 Garth Huber
819 469 Richard Trotta
* Stephen's Notes attachment:mtg_23jan26.txt
820
* Richard
821
** attachment:KaonLTMeeting1_26_23.pdf attachment:FullAnalysis_Q5p5W3p02_highe.pdf
822
** LT_analysis script is finishing up. I have the SIMC portion just about working now. I have some other things I am adding because of my conversation with Bill last week.
823 470 Nathan Heinrich
** SIMC vs Data plots for Q2=5p5 show a very small SIMC. Need to investigate further.
824
* Nathan
825
** attachment:RefTimes_Update_2023-01-26.pdf 
826
** Asked Carlos Yero about the cointime ref times, he sent me an older email chain attachment:ref_times_email_exchange.txt
827
*** only SHMS variables are used.
828 471 Nathan Heinrich
** Presented ref times plots, and suggested cuts.
829
*** Cuts are already set up and pull request is sent to LTSep_Analysis_2022 branch
830 469 Richard Trotta
831
---
832 458 Richard Trotta
833
h3. Jan 19, 2023
834 467 Garth Huber
835 462 Ali Usman
* Garth/Stephen Notes  attachment:mtg_23jan19.txt
836
* Ali
837 460 Vijay Kumar
** Looking at HMS Calorimeter and Cherenkov Efficiency and PID. attachment:KaonLT_Meeting_Jan_19.pdf
838
* Vijay
839
** attachment:Vijay_Jan19_2023.pdf
840 464 Alicia Postuma
** Trying to understand the pion cross-section across the acceptance. 
841
* Alicia
842
** attachment:Asymmetry_Postuma_Updates-6.pdf
843
** Added dummy target subtraction to asymmetry calculation
844
** Discussed fitting to extract cross-section ratio
845 458 Richard Trotta
** Requested: details on error calculations: attachment:Asymmetry_Errors.pdf
846
* Richard
847
** attachment:KaonLTMeeting1_19_23.pdf
848
** Implemented Jacob's diamond cut script into the setup before Bill's code. This also does the t-binning as well.
849 461 Nathan Heinrich
** There was missing code for the SIMC implementation which has been found. I am meeting with Bill tomorrow 1/20 to discuss this implementation. Once this is complete, everything is in place to run the Fortran code to get average kinematics and unsep cross sections.
850 468 Garth Huber
* Nathan
851 461 Nathan Heinrich
** Started working on reference times
852
** has some extra peaks in some runs
853 1 Richard Trotta
*** Should be explained by the triggers on in each run
854 468 Garth Huber
** attachment:RefTimes_Update_2023-01-19.pdf
855
856 458 Richard Trotta
----
857 453 Ali Usman
858
h3. Jan 4, 2023
859 457 Garth Huber
860 453 Ali Usman
* Garth's Notes attachment:mtg_23jan04.txt
861
* Ali
862 1 Richard Trotta
** attachment:Jan4_KLT_Meeting.pdf
863 458 Richard Trotta
** All Kaon_LT data has been replayed over the holidays. Slide show list of major changes for the replay.
864
865 459 Richard Trotta
---
866 458 Richard Trotta
867 454 Ali Usman
h2. 2022 Meetings
868 453 Ali Usman
869
---
870 450 Richard Trotta
871
h3. Dec 21, 2022
872 457 Garth Huber
873 450 Richard Trotta
* Garth/Stephen Notes attachment:mtg_22dec21.txt
874 451 Richard Trotta
* Richard
875 450 Richard Trotta
** attachment:KaonLTMeeting12_21_22.pdf
876
** SIMC code was updated to match what is in hcana, using hcana and parts of Carlos' code as a template. Things do not look right though. 
877
** We are a month behind at this point and Bill has finally responded to my questions so I am going to fully concentrate on getting cross sections before the Hall C collaboration meeting in January so that Nathan can present them. I am setting a soft deadline of January 6th to get him early results but will continue to push for cross sections by the talk.
878
879
---
880 449 Garth Huber
881
h3. Dec 14, 2022
882 457 Garth Huber
883 449 Garth Huber
* Garth/Stephen Notes attachment:mtg_22dec14.txt
884
885
---
886 442 Richard Trotta
887 440 Ali Usman
h3. Dec 7, 2022
888 457 Garth Huber
889 440 Ali Usman
* Garth/Stephen Notes attachment:mtg_22dec07.txt
890 442 Richard Trotta
* Ali
891 443 Richard Trotta
** New error calculation (binomial) for efficiencies and Live Times. attachment:KaonLT_Dec_5.pdf
892 446 Richard Trotta
* Richard
893 443 Richard Trotta
** "Q2=3.0, W=3.14, lowe":https://redmine.jlab.org/attachments/1707 "Q2=5.5, W=3.02, lowe":https://redmine.jlab.org/attachments/1708 "Q2=4.4, W=2.74, lowe":https://redmine.jlab.org/attachments/1709 "Q2=4.4, W=2.74, highe":https://redmine.jlab.org/attachments/1710 "Q2=5.5, W=3.02, highe":https://redmine.jlab.org/attachments/1711 "Q2=3.0, W=3.14, highe":https://redmine.jlab.org/attachments/1712
894
** A new subroutine has been added for the hcana variable calculations in SIMC, this is ongoing.
895
** Plots of right/left/center for each physics setting have been added, including efficiencies and t-bin plots (no diamond cuts yet!). These plots show the input to Bill's code for comparison. These need to be updated with Ali's updates so a new set of replays will need to be analyzed.
896 448 Alicia Postuma
** Bill is doing a write-up with some questions I had which will hopefully fix the remaining issues I've been having with his code.
897 440 Ali Usman
* Alicia: attachment:Asymmetry_Postuma_Dec07.pdf
898
899
---
900 439 Garth Huber
901
h3. Nov 30, 2022
902
903
* Garth/Stephen Notes attachment:mtg_22nov30.txt
904
905
---
906 437 Garth Huber
907
h3. Nov 23, 2022
908
909 438 Alicia Postuma
* Garth/Stephen Notes attachment:mtg_22nov23.txt
910 437 Garth Huber
* Alicia asymmetry update attachment:Asymmetry_Postuma_Updates.pdf
911
912
---
913 424 Richard Trotta
914
h3. Nov 16, 2022
915 435 Garth Huber
916 424 Richard Trotta
* Garth/Stephen Notes attachment:mtg_22nov16.txt
917 428 Richard Trotta
* Richard
918
** "8p2 LH2":https://redmine.jlab.org/attachments/1684 "8p2 C":https://redmine.jlab.org/attachments/1685
919 424 Richard Trotta
** "10p6 C 2":https://redmine.jlab.org/attachments/1686 "10p6 C 1":https://redmine.jlab.org/attachments/1687 "10p6 LH2 1":https://redmine.jlab.org/attachments/1688 "10p6 C 3":https://redmine.jlab.org/attachments/1689 "10p6 LH2 2":https://redmine.jlab.org/attachments/1690 "10p6 LH2 3":https://redmine.jlab.org/attachments/1691
920
** Fits for lumi scans look great for HMS across the board. SHMS no track also look pretty good but tracking still needs work. Ali has adjusted the tracking parameters in the replay which should help things. Signs of boiling are also now evident in HMS for some runs.
921
** Odd issue with the yields going on that I need to discuss with Bill. It seems to be a cut discrepancy that is eliminating events, I may be missing a cut that he has hidden somewhere. Besides this, the cross-section code is being edited for HeeP so we can get some cross-section plots on this soon.
922 429 Richard Trotta
** I found a script for raster calibrations. The script is being fixed as it is currently a bit of a mess.
923 430 Stephen Kay
** https://redmine.jlab.org/projects/kltexp/wiki/Hall_C_Raster_Algorithm
924
* Stephen
925
** Updates to the hcana RFTime class
926
** Added in particle dependent corrections for e/pi/K/p for each spectrometer
927
*** Calculate beta for each particle type (from momentum, delta)
928
*** Determine path length from xptar and delta
929
*** Calculate ToF
930
*** Add this in modulo that determines RFtime
931
*** Tried method Shuo used initially, didn't really do anything
932 433 Stephen Kay
** Some further updates needed before it will be pushed to the hallc repo
933
** "Slides":https://redmine.jlab.org/attachments/1694 
934
** "RF corrections applied exactly as Shuo applied them":https://redmine.jlab.org/attachments/1696 "RF corrections determined as Shuo did, but applied inside the modulo fn":https://redmine.jlab.org/attachments/1697 
935 436 Garth Huber
** "RF correction simply the ToF added in the modulo fn, seems to work":https://redmine.jlab.org/attachments/1695
936
* Vijay (presented by GH)
937 424 Richard Trotta
** low Q2 attachment:CPULT_lowQ2.png attachment:TLT_lowQ2.png attachment:ELT_lowQ2.png
938
939
---
940 420 Vijay Kumar
941
h3. Nov 09, 2022
942 421 Garth Huber
943 422 Garth Huber
* Garth/Stephen Notes attachment:mtg_22nov09.txt
944 423 Garth Huber
* Bill (Wenliang) Li L/T-separation code tutorial.
945 420 Vijay Kumar
** Video recording is posted at: http://lichen.phys.uregina.ca/~huberg/kaon/LT_tutorial_20221109_1920x1080.mp4
946
* Vijay
947
** The scaler Yield looks very nice at 2.7 GeV PionLT data. Below 10 uA could be fixed by placing some of the offsets in the BCM calibration. attachment:Vijay_LumiStuy.pdf 
948
949
---
950 405 Vijay Kumar
951
h3. Nov 2, 2022
952 416 Garth Huber
953 405 Vijay Kumar
* Garth/Stephen notes attachment:mtg_22nov02.txt
954 406 Vijay Kumar
* Vijay
955 1 Richard Trotta
** The first round of the Lumi study in 2.7 GeV data of the PionLT experiment was preceded. The plots are attached, but I do not have any conclusions for now. Please see the attachment.
956 419 Vijay Kumar
attachment:Vijay_REYIELD_2p7C.pdf 
957 411 Ali Usman
  
958
* Ali
959 412 Ali Usman
** Heep Coin Offset study using Peter Bosted's correction factor for HMS central momenta. The results from 8.2 and 10.6 GeV improved after applying the offset whereas 6.2 over corrects the distributions as they are already looking good with no offset. Data and SIMC comparison look very good for W distribution but doesn't perfectly match for missing variables.
960 418 Jacob Murphy
attachment:KaonLT_Meeting_Nov_2.pdf
961
* Jacob
962
** Regarding Ali's work on the Pc offsets at high momentum, I referenced the delta corrections I made early last year. In EPICS, the NMR did not appear to be locked and in the middle of the scan, the NMR was changed. Slide 15 has the offsets to the central momentum, Pc.
963 413 Richard Trotta
attachment:HMS_Optimization_at_High_Momentum.pdf
964 427 Richard Trotta
* Richard
965 426 Richard Trotta
** "6p2 C":https://redmine.jlab.org/attachments/1658 "6p2 LH2":https://redmine.jlab.org/attachments/1659
966 413 Richard Trotta
** "10p6 C 1":https://redmine.jlab.org/attachments/1662 "10p6 C 2":https://redmine.jlab.org/attachments/1663 "10p6 C 3":https://redmine.jlab.org/attachments/1664 "10p6 LH2 1":https://redmine.jlab.org/attachments/1665 "10p6 LH2 2":https://redmine.jlab.org/attachments/1666 "10p6 LH2 3":https://redmine.jlab.org/attachments/1667
967
** Luminosities are looking very nice. These now include the ones Peter pointed out that were taken during SIDIS. Nearly all e-e runs are under 5%.
968
** I have debugged all of the issues I was having with Bill's code. I am now in the process of merging the two frameworks which is mainly just making names, conventions, etc. consistent.
969
** I have been writing up some questions for Bill next week when he presents. I'd like to also have these two frameworks pretty much merged by then.
970 405 Vijay Kumar
971 325 Garth Huber
 
972 346 Richard Trotta
----
973 403 Garth Huber
974
h3. Oct 26, 2022
975
976
* DaveG notes attachment:mtg_22oct26.txt
977
978
----
979 402 Garth Huber
980 1 Richard Trotta
h3. Oct 19, 2022
981 402 Garth Huber
982 401 Richard Trotta
* Garth/Stephen notes attachment:mtg_22oct19.txt
983
* Richard
984
** The trend in the SHMS track yields is still present in the positive polarity luminosity runs.
985
** Talk for the Hall C Quarterly meeting was discussed. 
986
987
----
988 400 Garth Huber
989
h3. Oct 12, 2022
990
991
* Garth/Stephen notes attachment:mtg_22oct12.txt
992
993
----
994 397 Richard Trotta
995
h3. Oct 4, 2022
996 399 Garth Huber
997 397 Richard Trotta
* Garth/Stephen notes attachment:mtg_22oct05.txt
998
* Richard
999
** attachment:KaonLTMeeting10_4_22.pdf
1000
** Fixed some issues with the luminosity scripts with updated replay and analysis script. The biggest issue was the really low beam on times which came from BCM4a being called by accident in some cases instead of BCM1.
1001
*** It should be noted, there are huge discrepancies between BCM4A and BCM1 in some cases (like 20+ uA).
1002
** Ran into some issues with the cross-section code. I am in debug mode trying to find the cause.
1003
** Tanja sent me some awesome fpi2 raster correction documents as well as procedures for verifying the beam and target positions. I am in the process of reading through/beginning these procedures. A Redmine wiki page will be linked when completed.
1004
1005
----
1006 393 Garth Huber
1007
h3. Sept 28, 2022
1008 394 Garth Huber
1009
* Garth/Stephen notes attachment:mtg_22sep28.txt
1010 396 Jacob Murphy
* Jacob
1011 394 Garth Huber
** HMS optics fitting - attachment:HMS_Optics_Calibrations_Update.pdf
1012 393 Garth Huber
1013
----
1014 382 Garth Huber
1015
h3. Sept 21, 2022
1016 392 Garth Huber
1017 389 Richard Trotta
* Garth/Stephen notes attachment:mtg_22sep21.txt
1018
* Richard
1019
** attachment:Yield_6p2cl1.pdf attachment:Yield_10p6cl2.pdf attachment:Yield_10p6cl1.pdf
1020 390 Richard Trotta
** Lumi SHMS tracking is still showing the trend from 9/8. It was found that the lumi replay script is not updated with many of Ali and Richard's most recent changes. These changes are being applied and a set of new replays will be done.
1021
** Bill's cross-section code is broken into two major parts. The root analysis part, which takes all the yields, uncertainties, etc., is nearly complete with the connecting ltsep framework script finishing up. The second part, where many of the final plots and cross-sections are done, is a hard-coded mess. Richard is in the process of making this more dynamic. This aspect will take more time but the root analysis part is the bulk of the analysis anyways.
1022
* Ali
1023 391 Ali Usman
** attachment:Ali_Sep21_Analysis.pdf
1024 389 Richard Trotta
** Heep Coin analysis for high Q2 KaonLT data (6.2, 8.2, 10.6 GeV beam energy) has now all the efficiencies/live times applied. The results for all 3 beam energies are looking very good. Data/SIMC ratios are agreeing very well (< 3%) and the shapes are matching up nicely. Next step is to finalize offsets for both low and high Q2 KaonLT data. Also proton absorption correction and target boiling needs to be applied.
1025 382 Garth Huber
1026
----
1027 379 Garth Huber
1028
h3. Sept 8, 2022
1029 382 Garth Huber
1030 383 Ali Usman
* Garth/Stephen Notes attachment:mtg_22sep08.txt
1031
* Ali
1032 386 Ali Usman
** attachment:Sep8_Analysis.pdf
1033 384 Ali Usman
** Heep Coin Analysis update. Fixed the issue with emiss and pmiss. Includes number of debug tests.
1034 387 Ali Usman
** attachment:FullAnalysis_4p9-2.pdf attachment:FullAnalysis_8p2.pdf attachment:FullAnalysis_6p2.pdf attachment:FullAnalysis_3p8-1.pdf attachment:FullAnalysis_10p6-1.pdf
1035 380 Richard Trotta
** Full analysis files are the latest data/simc comparison for different beam energies (No offsets applied yet) 
1036
* Richard
1037 381 Richard Trotta
** attachment:KaonLTMeeting9_8_22.pdf
1038 380 Richard Trotta
** attachment:Yield_6p2_l1_all.pdf attachment:Yield_10p6_l1_all.pdf attachment:Yield_10p6_l2_all.pdf
1039
** Improved total uncertainties
1040
** In-depth with tracking cut analysis underway
1041
** Poor TLT consistent with poor CPULTs
1042 379 Garth Huber
1043
----
1044 371 Garth Huber
1045
h3. Aug 31, 2022
1046 379 Garth Huber
1047 378 Richard Trotta
* Garth/Stephen Notes attachment:mtg_22aug31.txt
1048
* Richard
1049
** attachment:KaonLTMeeting8_31_22.pdf
1050
** Improvements to luminosity analysis. Things are getting within a few percent. There are still some obvious issues with dependency leaking into the cuts, especially for tracking which is being investigated further.
1051
** Uncertainties for the luminosities and heep are next up.
1052 371 Garth Huber
1053
----
1054 374 Garth Huber
1055 1 Richard Trotta
h3. Aug 26, 2022
1056 375 Garth Huber
1057 374 Garth Huber
* Meeting on L/T-separation procedure
1058
** Garth's slides attachment:LT_sep_iterations.pdf
1059 377 Garth Huber
** Bill's tutorial (Nov 2018) attachment:Kaon_LT_tutorial_18nov28.pdf
1060 395 Garth Huber
** Stephen's notes attachment:LTsep_mtg_22aug26.txt
1061 373 Garth Huber
** Recording of Sept 27 repeat at: http://lichen.phys.uregina.ca/~huberg/kaon/LT_tutorial_20220927_1920x1080.mp4
1062
1063 372 Garth Huber
----
1064 366 Garth Huber
1065 368 Vijay Kumar
h3. Aug 17, 2022
1066 371 Garth Huber
1067 367 Vijay Kumar
* Garth/Stephen Notes attachment:mtg_22aug17.txt
1068 369 Vijay Kumar
* Vijay
1069 367 Vijay Kumar
** The summary of the Heepcheck study is attached here. attachment:Vijay_Aug17_2022.pdf 
1070 370 Richard Trotta
** 3.6 and 3.9 GeV data do NOT have the angle offsets. This has been established in the study.
1071
** I've plotted the offsets vs SHMS central momentum. Plots are attached in the attached pdf file.
1072
* Richard
1073
** The 10.6 GeV heep analysis is going well but the broad momentum distributions are making offsets difficult at times.
1074
** I have decided to give a second pair of eyes to Ali's hcana vs simc calculation investigation. It is concluded that the broad peaks of the hcana are likely caused by the secondary particle calculation which is gathered from the spectrometer track info. 
1075
** Corrections to the simc pmiss components have been added to the fortran code which corrects for a minus sign that is in hcana but missing from simc.
1076
** attachment:FullAnalysis_Offset_10p6.pdf
1077 367 Vijay Kumar
** attachment:HcanavSimc_scatter_calc.pdf
1078 366 Garth Huber
 
1079
1080
---
1081 354 Garth Huber
1082
h3. Aug 4, 2022
1083 365 Garth Huber
1084 363 Vijay Kumar
* Garth/Stephen Notes attachment:mtg_22aug04.txt
1085
* Vijay
1086 362 Richard Trotta
** The offset HeepCheck study at 3.9, 4.9 (KaonLT), 2.7, 3.6 and 4.5 (PionLT) GeV has been completed. attachment:Vijay_HeepCheckStudy.pdf  
1087
* Richard
1088
** attachment:KaonLTMeeting_8_4_22.pdf
1089
** HeeP coin for 10p6 setting is looking pretty good. I still need to make some minor adjustments.
1090
** TLT for Lumi is looking much better. The yields also are looking better but cut adjustments need to be made.
1091
** HeeP singles have some odd issues that need to be resolved before offset analysis can begin.
1092 355 Garth Huber
** Hodoscope calibrations are all done except 6p2.
1093 354 Garth Huber
1094
---
1095 350 Richard Trotta
1096
h3. July 14, 2022
1097 353 Garth Huber
1098 350 Richard Trotta
* Garth/Stephen Notes attachment:mtg_22jul14.txt
1099
* Richard
1100
** attachment:KaonLTMeeting7_14_22.pdf
1101 1 Richard Trotta
** The W peaks for SIMC and data are very far offset from one another. This is being investigated.
1102 350 Richard Trotta
* Vijay
1103 349 Garth Huber
** Heep Data MC comparo w/o offsets attachment:Heep_coin_no_offsets_vijay_22jul08.pdf
1104
1105
----
1106 344 Richard Trotta
1107
h3. June 28, 2022
1108 349 Garth Huber
1109 344 Richard Trotta
* Garth/Stephen Notes attachment:mtg_22jun28.txt
1110
* Richard
1111
** Aerogel XY plots vs NPE to check out the tray location and efficiencies.
1112
** Hodoscope and calorimeter scripts working. Hodoscope calibration looks good for 10p6 but needs improvement for other beam energies.
1113 1 Richard Trotta
** HGCer efficiency and plots added to efficiency script. Need to discuss with Vijay on specifics of cuts and efficiencies.
1114 348 Jacob Murphy
** Started looking in detail at Bill's code. Some scripts and links are missing/broken.
1115
* Jacob
1116
** EDTM Study Report completed, with newer versions of the TLT equations attachment:EDTM_Study_Report.pdf
1117 347 Richard Trotta
** Graphical Guide for Event Types created to accompany the report, illustrating prescaling with EDTM attachment:Graphical_Guide_Evt_Type.pdf
1118 344 Richard Trotta
** Plan to update report file template with new equations and errors soon
1119
1120 282 Vijay Kumar
----
1121 338 Garth Huber
1122
h3. June 14, 2022
1123 343 Garth Huber
1124 342 Richard Trotta
* Garth's Notes attachment:efficiencies_22jun13.txt
1125
* Richard
1126
** Fixed issues with simc script and 10p6 Heepcoin data. Issue with data was an offset of 40ns that was corrected halfway through runs.
1127
** Aerogel XY plots vs NPE to check out the tray location and efficiencies.
1128
** Efficiency plots for all production runs.
1129 338 Garth Huber
** attachment:KaonLTMeeting6_14_22.pdf
1130
1131
----
1132 1 Richard Trotta
1133 330 Garth Huber
h3. May 31, 2022
1134
1135 340 Garth Huber
* Garth and Stephen's Notes attachment:mtg_22may31.txt attachment:efficiencies_22jun02.txt
1136 332 Vijay Kumar
* Vijay 
1137 334 Ali Usman
** The updated Heep coin study (Heepcheck program) at 3.9 GeV KaonLT data is attached here attachment:Vijay_KaonLT_meeting_May31_2022.pdf .
1138 355 Garth Huber
* Ali
1139 332 Vijay Kumar
** First look at the HEEP COIN Data/SIMC comparison for the 8.2 GeV Kaon-LT data attachment:KaonLT_May31.pdf
1140 314 Garth Huber
1141
----
1142
1143
h3. May 17, 2022
1144 325 Garth Huber
1145 331 Garth Huber
1146 318 Richard Trotta
* Garth and Stephen's Notes attachment:mtg_22may17.txt attachment:efficiencies_22may25.txt
1147
* Richard
1148
** Updated heep coin scripts for the farm. Ali is testing them and should be able to get plots soon.
1149
** There was a small typo in the simc input file that dramatically changed the shape of the plots. attachment:KaonLTMeeting5_17_22.pdf
1150 316 Vijay Kumar
** Updated version of efficiency columns for the script that will grab efficiencies and various other values. attachment:efficiency_output_list.docx
1151
* Vijay 
1152 317 Vijay Kumar
** The updated heep coin study (some spectrometers offsets changed) at 3.9 GeV KaonLT data is attached here attachment:Vijay_KaonLT_meeting.pdf .
1153 314 Garth Huber
1154
----
1155 299 Garth Huber
1156 303 Vijay Kumar
h3. May 3, 2022
1157 315 Garth Huber
1158 308 Ali Usman
* Garth and Stephen's Notes attachment:mtg_22may03.odt  attachment:efficiencies_22may03.odt
1159
* Ali
1160
** Fixed all the settings for high Q2 KaonLT data. Also slide on accessing spectrometer angles from CODA
1161 309 Richard Trotta
** attachment:KaonLT_May_3.pdf
1162 312 Richard Trotta
* Richard
1163 302 Vijay Kumar
** Analysis of 10.6 GeV heep data. Need to scale data to see how they compare with SIMC for smaller offsets. attachment:KaonLTMeeting5_3_22.pdf
1164 304 Vijay Kumar
* Vijay 
1165 305 Vijay Kumar
** The SIMC simulation study of the PinoLT data at Q2 = 0.38 and 0.42 GeV2 has completed (preliminary) for all settings.
1166 299 Garth Huber
** An output pdf file of the 4.5 GeV, Q2 = 0.42 GeV2 and "center" setting is here attachment:Vijay_analysis_May3_2022.pdf .
1167 300 Garth Huber
1168
----
1169 296 Vijay Kumar
1170 299 Garth Huber
h3. April 19, 2022
1171
1172 1 Richard Trotta
* Garth's Notes attachment:mtg_22apr19.txt
1173 296 Vijay Kumar
* Vijay 
1174 298 Vijay Kumar
** SIMC simulation updates at Q2 = 2.7, 3.6 and 4.5 GeV2. attachment:Vijay_KaonLT_Meeting_Apr19_2022.pdf  
1175 296 Vijay Kumar
1176
----
1177
1178 306 Vijay Kumar
h3. April 06, 2022
1179 355 Garth Huber
1180 306 Vijay Kumar
* Garth's Notes attachment:mtg_22apr06.txt
1181 293 Garth Huber
* Ali 
1182 290 Richard Trotta
**  attachment:Analysis_Update_Apr_6.pdf 
1183
* Richard 
1184 288 Richard Trotta
** attachment:KaonLTMeeting4_6_22.pdf
1185
** The analysis of the 10.6 GeV heep coin/singles settings are still ongoing. 
1186
** There were some issues getting the replays working for the singles runs and the analysis. Things finally were sorted out yesterday (and this morning).
1187 291 Richard Trotta
** The SHMS heep singles are presented. Overall, they look fine. There are still some things to sort out.
1188 282 Vijay Kumar
** The HMS heep singles are still running.
1189 306 Vijay Kumar
* Vijay 
1190 288 Richard Trotta
** The simulation study of the 4.9 GeV KaonLT data has completed.
1191 295 Garth Huber
** This energy has left, center and right settings data. All these settings look fine. 
1192 284 Vijay Kumar
** See the pdf for more info. attachment:Vijay_KaonLT_Meeting_Apri_06_2022.pdf  
1193 1 Richard Trotta
1194 284 Vijay Kumar
----
1195 281 Richard Trotta
1196 1 Richard Trotta
h3. March 23, 2022
1197 281 Richard Trotta
1198 1 Richard Trotta
* Garth's Notes attachment:mtg_22mar23.txt
1199 278 Richard Trotta
* Richard 
1200
** 10.6 GeV heep coin was analyzed. Things look pretty good so far, still some work to be done. attachment:KaonLTMeeting3_23_22.pdf
1201 280 Nathan Heinrich
** Heep singles are next up. There have been issues replaying these runs but Ali may have fixed this issue with his parameter file changes.
1202
* Nathan
1203 278 Richard Trotta
** Did chack of the Mode 10 plots for HGC, was discrepancy between hardware and software caused by the variable phgcer_SampNSAT being 2 by default.
1204
** after changing back to 1 discrepancy resolved. Slides: attachment:Mode10Update_2022Mar23.pdf
1205
1206
---
1207
1208
h3. March 9, 2022
1209
1210 355 Garth Huber
* Garth's Notes attachment:mtg_22mar09.txt
1211 267 Richard Trotta
* Regina March 4 meeting on pion leak through in (e,e'K+) analysis attachment:grp_22mar04.txt
1212
* Richard 
1213
** Vijay's scripts are working and Richard reproduced some of his previous plots. attachment:KaonLTMeeting3_9_22.pdf
1214 1 Richard Trotta
** The next step is to do a full analysis of the 10.6 GeV heep coin/singles data.
1215 277 Garth Huber
* Nathan
1216
** Update on the current state of mode 10: attachment:Mode10Update_2022Mar9.pdf 
1217 269 Richard Trotta
** See Mark Jones' slide on changes to hcana: https://redmine.jlab.org/attachments/1424
1218 261 Garth Huber
1219
---
1220 271 Garth Huber
1221 273 Garth Huber
h3. February 23, 2022
1222 271 Garth Huber
1223
* Garth's Notes attachment:mtg_22feb23.txt
1224 272 Garth Huber
1225
---
1226 244 Vijay Kumar
1227
h3. January 26, 2022  
1228 271 Garth Huber
1229 253 Vijay Kumar
* Garth's Notes attachment:mtg_22jan26.txt
1230 251 Vijay Kumar
* Vijay, Heep updates from the PionLT experiment. attachment:Analysis_Updates_Jan26_2022.pdf 
1231 252 Vijay Kumar
** HMS single 2.7 GeV, total 6 settings. attachment:HMS_Analysed_2p7_1.pdf attachment:HMS_Analysed_2p7_2.pdf attachment:HMS_Analysed_2p7_3.pdf attachment:HMS_Analysed_2p7_4.pdf attachment:HMS_Analysed_2p7_5.pdf attachment:HMS_Analysed_2p7_6.pdf   
1232 246 Vijay Kumar
** SHMS single 2.7 GeV,total 6 settings. attachment:SHMS_Analysed_2p7_1.pdf attachment:SHMS_Analysed_2p7_2.pdf attachment:SHMS_Analysed_2p7_3.pdf attachment:SHMS_Analysed_2p7_4.pdf attachment:SHMS_Analysed_2p7_5.pdf attachment:SHMS_Analysed_2p7_6.pdf
1233 250 Vijay Kumar
** The 3.6 and 4.5 GeV data do not have elastic data.
1234 254 Nathan Heinrich
** Coin: 2.7, 3.6 and 4.5 GeV. attachment:Analysed_2p7.pdf attachment:Analysed_3p6.pdf attachment:Analysed_4p5.pdf   
1235 255 Nathan Heinrich
* Nathan, Short update on the Mode 10
1236 256 Jacob Murphy
** Short update. May need to update hcana to change software voltage threshold. attachment:2022-01-26NathanHeinrich.pdf
1237 260 Jacob Murphy
* Jacob, EDTM Study 2
1238 255 Nathan Heinrich
** EDTM study with beam, taken during LUMI Scan 3
1239 248 Vijay Kumar
** Early look at 3rd EDTM Study
1240 113 Richard Trotta
** Additional notes on increased deadtime in SHMS at High Current. attachment:PionLT_EDTM_Study2_Analysis.pdf
1241 222 Richard Trotta
1242 200 Richard Trotta
----
1243 236 Garth Huber
1244
h3. January 12, 2022  
1245
1246
* Garth's Notes attachment:mtg_22jan12.txt
1247
* Junaid
1248 240 Vijay Kumar
** PID study
1249 238 Vijay Kumar
* Vijay
1250 236 Garth Huber
** Heep-singles study attachment:Analysis_Updates1_Jan12.pdf 
1251
* Nathan
1252
** Mode-10 data variables
1253 243 Richard Trotta
1254
----
1255 234 Garth Huber
1256
h3. January 5, 2022  
1257 235 Garth Huber
1258 221 Richard Trotta
* Garth's Notes attachment:mtg_22jan05.txt
1259
* Stephen
1260
** Stephen was updating GitHub but UTIL_BATCH has some permissions issues
1261
* Richard
1262
** Update to KLT task schedule
1263
** Meeting between Richard and Vijay to discuss task breakdown Friday, January 7th at 11 am EST
1264 223 Richard Trotta
** EDTM study 2 will done sometime this weekend
1265
* Vijay
1266 224 Richard Trotta
** Breakdown of HEEP single analysis for low Q2 data
1267
*** Shapes of SIMC and data are very off
1268 231 Vijay Kumar
*** It seems to be a systematic issue on Vijay's part because the same issue is being seen in PLT data
1269 229 Vijay Kumar
*** The main issue in my input file was the target thickness, which picked up by Dave in the group meeting. I corrected the target thickness and now it looks ok. See the attached pdf file below.  
1270 228 Vijay Kumar
** https://redmine.jlab.org/attachments/1376
1271 225 Nathan Heinrich
** https://redmine.jlab.org/attachments/1375
1272
* Nathan
1273
** Update on fADC mode 10 studies and the fADC deadtime studies
1274 226 Jacob Murphy
** https://redmine.jlab.org/attachments/1372
1275
* Jacob
1276 227 Jacob Murphy
** Summary of EDTM analysis so far in the PionLT experiment
1277 242 Richard Trotta
** https://redmine.jlab.org/attachments/1373
1278 221 Richard Trotta
1279
----
1280
1281
h2. 2021 Meetings
1282 220 Richard Trotta
1283
h3. August 4, 2021
1284
1285
* Richard
1286
** Update on the HEEP singles. The remainder of energy setting ratios vs SIMC were looked at over the range of angles. They look good (within 1% and < 0.5% uncertainty).
1287
** Issues with the COIN are seen but may be a replay issue.
1288
1289
----
1290 217 Richard Trotta
1291
h3. July 21, 2021
1292 218 Richard Trotta
1293 217 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1250/KaonLTMeeting7_14_21.pdf
1294
** Update on the HEEP singles. 10.6 GeV ratios vs SIMC were looked at over the range of angles. They look good (within 1%) but proper error bars are needed.
1295
1296
----
1297 215 Richard Trotta
1298
h3. May 12, 2021
1299
1300
* Richard
1301
** The currents were adjusted from 1-10 uA with little effect on the EDMTLT but proper changes to the CPULT. The replay bcm cut script developed by Sanghwa was also analyzed to see if it may be causing the issue but it had the same effects. There was also a small error in the code found where T.coin.pEDTM.tdcTimeRaw was incorrectly written as T.coin.pEDTM.tdcTime.
1302
1303
----
1304 213 Richard Trotta
1305
h3. April 28, 2021
1306
1307 214 Richard Trotta
* Richard
1308 213 Richard Trotta
** Lumi table was created for 2 sets of runs. Odd behavior seen ~30-45 uA with EDTM where is drops. Playing with the current cuts is the next step.
1309
1310
----
1311 211 Richard Trotta
1312 212 Richard Trotta
h3. April 14, 2021
1313 211 Richard Trotta
1314
* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_4_14_21.pdf
1315
** Updated Lumi carbon plots with uncertainties. PID and current cuts need to be played around with a bit to see if they improve things (as uncertainties don't explain any boiling-type behaviors). 
1316
** Some PionLT carbon runs were looked at but there are still some issues (either cut or pathing related).
1317
1318
----
1319 203 Richard Trotta
1320
h3. March 31, 2021
1321 206 Richard Trotta
1322 209 Richard Trotta
* Richard
1323
** Luminosity studies
1324
*** PionLT carbon runs
1325
**** Still having issues getting decent results. I think I am just missing a definition somewhere that I need to track down
1326
*** Uncertainties
1327
**** Easy to do, I just need to put it into my script
1328
** Explicit PS calculations
1329
*** I have gotten a rough script working for very simple runs (ie low rate, single spectrometer, calibration runs)
1330
*** I am trying to expand to lumi singles runs, things get a bit more complex so I am just working out the trigger correlations
1331
** Pass 2 runs
1332
*** DEF-files
1333
**** I checked out the DEF-files for our combination of the nested files
1334
**** There are a lot a files (~150!!!!) and may be hard to track so next week *we should make a flowchart together*
1335
**** Working on my list of branches for the next replay
1336
***** Mainly just working on my list of branches for the explicit PS calculations
1337 210 Stephen Kay
***** *Everyone should have a list of these branches by next mini-meeting (4/7/21)*
1338
* Stephen
1339
** Updated DEF-File for the "full" replay
1340
*** Can't remove NData brances, Mark says they won't take up too many resources anyway
1341
*** Removed individual PMT info and raw info for many detectors, reduced file size by factor ~2
1342
** Updating DEF-files/scripts for calibrations as part of PionLT prep
1343
** Will focus on DEF-file/DEF-cut file updates over next week
1344 207 Richard Trotta
*** Will investigate HeeP replays over rest of this week.
1345 203 Richard Trotta
1346
----
1347 201 Stephen Kay
1348
h3. March 24, 2021
1349
1350
* KaonLT Mini Meeting focusing on Pass2 preparation
1351
* "Task summary from Richard":https://redmine.jlab.org/projects/kltexp/wiki/Replay_2_Tasks
1352
1353
----
1354 200 Richard Trotta
1355
h3. March 17, 2021
1356
1357 1 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_3_17_21.pdf
1358 202 Stephen Kay
** I have re-run the carbon lumi runs with the changes to the replay events (i.e. All_events_NO_EDTM). The results look pretty good (within a few percent). There are still some trends I need to investigate for certain runs and I need to do the analysis for the pionLT carbon lumi data.
1359 201 Stephen Kay
* Mini meeting March 24th @ 4:30 EDT
1360 200 Richard Trotta
1361 194 Richard Trotta
----
1362 199 Richard Trotta
1363
h3. March 3, 2021
1364
1365
* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_3_3_21.pdf
1366
** I found an issue with the replay scripts used where the EDTM was not being properly registered. There is a discrepancy between two replay scripts depending on what the Decode_master is set to (i.e. ALL_events vs ALL_events_NO_EDTM). 
1367
** The explicit calculation of the prescale has hit a snag because of the differences between 6 GeV and 12 GeV. I contacted Mark Jones, who explained there are significant differences in the ADC gate between the two eras (which my own findings confirmed). I have contacted Brad for further input.
1368
1369
----
1370
1371 196 Richard Trotta
1372 194 Richard Trotta
h3. February 17, 2021
1373
1374
* Richard
1375 198 Nathan Heinrich
** Tried to remove some cumbersome elements to the analysis scripts without success. A few runs were added to a well behaved set of lumi runs with good consistency.
1376
* Nathan
1377
** Presented an update on the Hodoscope Calibrations: https://redmine.jlab.org/attachments/download/1196/HodoscopeUpdate_2021Feb17.pdf
1378 194 Richard Trotta
1379
----
1380 196 Richard Trotta
1381 193 Richard Trotta
h3. February 3, 2021
1382
1383
* Richard
1384
** A table with the aerogel efficiency for kaons is being created. It will be expanded to other particles and detectors.
1385
1386
----
1387 196 Richard Trotta
1388 191 Richard Trotta
h3. January 20, 2021
1389
1390
* "Richard":https://redmine.jlab.org/attachments/download/1172/KaonLTMeeting_1_20_21.pdf
1391
** All KaonLT carbon runs have been analyzed. There are still some issues that seem to be related to the pre-scale values. I may need to investigate the EDTM and/or the COIN events further to correct for these.
1392
1393
----
1394 196 Richard Trotta
1395 190 Richard Trotta
h3. January 6, 2021
1396
1397 322 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1153/KaonLTMeeting1_6_21.pdf
1398 186 Richard Trotta
** Analyzed most of the luminosity scans. There are a few issues I am investigating still which seem to be run related. 
1399
1400
----
1401
1402
h2. 2020 Meetings
1403 185 Richard Trotta
1404
h3. December 2, 2020
1405
 
1406
* Ali and Richard
1407
** Richard included the EDTM to Lumi analysis and found some old analysis of scalers by Mark Jones that he will compare. Ali and Richard met last week and will begin combining Ali's tracking studies with Richard's lumi analysis.
1408
1409
----
1410 180 Richard Trotta
1411
h3. November 18, 2020
1412 183 Richard Trotta
1413 181 Richard Trotta
* "Carlos":https://redmine.jlab.org/attachments/download/1103/LiveTime_Study_cyero.pdf
1414 180 Richard Trotta
** He is investigating some of the EDTM rate dependence and sees a discrepancy between the total EDTM LT and CPU LT with a sudden dip at 20-30 kHz. More luminosity runs will need to be studied for a full conclusion.
1415
* "Richard":https://redmine.jlab.org/attachments/download/1101/KaonLTMeeting11_18_20.pdf
1416
** Scaler analysis matches Carlos' code now. Overall significant improvements were made through some cut adjustments and incorrect variable definitions.
1417 182 Richard Trotta
* Stephen
1418 180 Richard Trotta
** Updated the hallc_replay_lt with parameter files for all coin peaks.
1419
1420
----
1421 178 Richard Trotta
1422 321 Richard Trotta
h3. November 4, 2020
1423 178 Richard Trotta
 
1424 321 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1092/KaonLTMeeting11_4_20.pdf
1425 178 Richard Trotta
** Scaler analysis is getting closer to an answer. An in-depth comparison of Carlos and Richard's analysis shows inconsistencies between the two. 
1426 141 Stephen Kay
1427
----
1428 170 Richard Trotta
1429
h3. October 28, 2020
1430
1431 177 Richard Trotta
* Ali
1432 172 Richard Trotta
** Went over some of his tracking procedures for the report file implementation
1433 173 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1091/KaonLTMeeting10_28_20.pdf
1434 171 Stephen Kay
** Luminosity analysis continues. There are still some issues but things have improved a bit.
1435
* "Stephen":https://redmine.jlab.org/attachments/download/1090/KaonLT_Meeting_28_10_20.pdf
1436 174 Richard Trotta
** Discussion of CT peak analysis, progress and outline of what's left to do with this
1437 176 Richard Trotta
* Vijay
1438 170 Richard Trotta
** Dry run for Mark's hallc meeting tomorrow (10/29)
1439
1440
----
1441 164 Richard Trotta
1442
h3. October 14, 2020
1443 168 Richard Trotta
1444 164 Richard Trotta
* Ali
1445
** Working through the REPORT_FILES template to get everything working and outputting proper information.
1446
* "Richard":https://redmine.jlab.org/attachments/download/1085/KaonLTMeeting_10_14_20.pdf
1447 167 Richard Trotta
** Updates on lumi scans. There are many issues from Scalers to Tracking that need to be resolved.
1448 164 Richard Trotta
* Stephen
1449 1 Richard Trotta
** He has included a demo for using the python analysis script in the README.
1450 164 Richard Trotta
1451
----
1452 161 Richard Trotta
1453
h3. September 23, 2020
1454
1455
* "Richard":https://redmine.jlab.org/attachments/download/1078/KaonLTMeeting_9_23_20.pdf
1456
** A quick lumi analysis after the Pass1 runs. The results were compared to previously analyzed runs (5154-5158). There was some change but nothing huge. Some other runs with the same energy settings were analyzed as well. 
1457 162 Richard Trotta
* Stephen
1458
** Showed some slides from u-channel meeting of omega and proton MM  plots. Then discussed some ideas for dealing with the hole in the HGCer.
1459
* Petr
1460 161 Richard Trotta
** Data fitting algorithm based on E.H. Bellamy paper. Extracts PMT spectra from ROOT file and makes a 1D projection histogram.
1461
1462
----
1463 149 Richard Trotta
1464 156 Richard Trotta
h3. September 9, 2020
1465
1466 157 Richard Trotta
* Richard
1467 156 Richard Trotta
** Still working on run list, GUI checks
1468
* "Stephen":https://redmine.jlab.org/issues/567
1469
** New slim replay scripts and full replay scripts updated
1470
* Ali
1471
** Him and Stephen found an issue (already aware of) with zeros in the parameter files using Mark's hcana changes
1472 158 Richard Trotta
** Need to be vigilant of crashed replays because this is probably the issue
1473 156 Richard Trotta
* Vijay
1474 1 Richard Trotta
** Nearly finished with HGcer calibrations
1475 156 Richard Trotta
1476
----
1477
1478
h3. August 26, 2020
1479 149 Richard Trotta
1480 154 Richard Trotta
*Links to talks->* "Ali":https://redmine.jlab.org/issues/483 "Vijay":https://redmine.jlab.org/issues/479
1481
1482
* Richard
1483
** New tasks were created based on the previous discussions on objectives going forward. In the process of checking run sheets against the run list and camera/EPICS.
1484
* Stephen
1485
** Updated on RF times. There were a few issues with some runs, but overall most are finished.
1486
* Ali
1487
** Hodoscope calibrations look similar to before. There is still the issue of the double bands in the time walk. This is ok because of the wide windows we still have. (See "hodoscope calibration section":https://redmine.jlab.org/projects/kltexp/wiki/Analysis_Tasks#Calibrations-Mid-to-Late-August-2020)
1488 150 Richard Trotta
* Vijay
1489 1 Richard Trotta
** Updated the SHMS HGCher analysis. The calibrations are coming along, but a little more work needs to be finished up.
1490 149 Richard Trotta
1491
----
1492 144 Richard Trotta
1493 147 Stephen Kay
h3. July 29, 2020
1494 148 Richard Trotta
1495 146 Stephen Kay
*Links to talks->* "Richard":https://redmine.jlab.org/attachments/download/1029/klt_7_29_20.html "Stephen":https://redmine.jlab.org/documents/106
1496 155 Richard Trotta
1497
* Stephen
1498
** Updates on scripts to set pedestal defaults and AdcTdc offsets after hcana change
1499
* Richard
1500 1 Richard Trotta
** Updated plan and schedule for the analysis going forward
1501 144 Richard Trotta
1502
----
1503 139 Richard Trotta
1504 1 Richard Trotta
h3. July 8, 2020
1505 139 Richard Trotta
1506 150 Richard Trotta
*Links to talks->* "Vijay":https://redmine.jlab.org/attachments/download/1023/SHMS%20Proton%20Absorption.ods "Ali":https://redmine.jlab.org/attachments/download/1022/KaonLT_Meeting_Jul_8.pdf
1507 139 Richard Trotta
1508
----
1509 132 Richard Trotta
1510
h3. June 24, 2020
1511 143 Richard Trotta
1512 132 Richard Trotta
*Links to talks->* "Vijay":https://redmine.jlab.org/attachments/download/1014/Vijay_24_June_20.pdf "Richard":https://redmine.jlab.org/attachments/download/1013/KaonLTMeeting_6_24_20.pdf
1513
1514
----
1515 129 Richard Trotta
1516
h3. June 9, 2020
1517 135 Richard Trotta
1518 129 Richard Trotta
*Links to talks->* "Vijay":https://redmine.jlab.org/attachments/download/1006/Vijay_9_June_20.pdf "Ali":https://redmine.jlab.org/attachments/download/1007/KaonLT_Meeting_Jun_9.pdf "Richard":https://redmine.jlab.org/attachments/download/1005/KaonLTMeeting_6_9_20.pdf
1519
1520
----
1521 125 Richard Trotta
1522
h3. May 27, 2020
1523 126 Richard Trotta
1524 128 Richard Trotta
*Links to talks->* "Vijay":https://redmine.jlab.org/attachments/download/1002/Vijay_26_May_20.pdf "Ali":https://redmine.jlab.org/attachments/download/1003/KaonLT_Meeting_May_27%20%5BAutosaved%5D.pdf
1525 125 Richard Trotta
1526
----
1527 118 Stephen Kay
1528 124 Richard Trotta
h3. May 13, 2020
1529 138 Stephen Kay
1530 1 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/attachments/download/993/KaonLT_Meeting_13_05_20.pdf - Python analysis scripts "Richard":https://redmine.jlab.org/attachments/download/998/KaonLTMeeting_5_13_20.pdf "Ali":https://redmine.jlab.org/attachments/download/997/KaonLT_Meeting_May_13.pdf "Vijay":https://redmine.jlab.org/attachments/download/999/Vijay_13_May_20.pdf
1531 121 Richard Trotta
1532
----
1533 111 Richard Trotta
1534
h3. April 29, 2020
1535 138 Stephen Kay
1536 106 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/attachments/download/984/KaonLTMeeting_4_29_20.pdf "Stephen":https://redmine.jlab.org/attachments/download/985/KaonLT_Meeting_29_04_20.pdf - Python code planning "Mark's hcana tracking update":https://redmine.jlab.org/attachments/download/982/Updates-to-HCANA-tracking.pdf
1537 1 Richard Trotta
1538 106 Richard Trotta
----
1539 111 Richard Trotta
1540 104 Richard Trotta
h3. April 15, 2020
1541 102 Richard Trotta
1542 105 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/attachments/download/977/KaonLTMeeting_4_15_20.pdf
1543 102 Richard Trotta
1544 95 Stephen Kay
----
1545 111 Richard Trotta
1546 100 Stephen Kay
h3. April 1, 2020
1547 138 Stephen Kay
1548 101 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/attachments/download/949/KaonLT_Meeting_01_04_20.pdf - RF timing "Richard":https://redmine.jlab.org/attachments/download/948/KaonLTMeeting_4_1_20.pdf
1549 41 Stephen Kay
1550 93 Richard Trotta
----
1551 111 Richard Trotta
1552 93 Richard Trotta
h3. March 18, 2020
1553
1554 1 Richard Trotta
*Links to talks->* "Richard's EIC Temple Draft 2":https://redmine.jlab.org/attachments/download/942/DRAFT2_mesonSF_EIC_Temple.pdf
1555 93 Richard Trotta
1556 91 Richard Trotta
----
1557 111 Richard Trotta
1558 92 Richard Trotta
h3. March 11, 2020
1559 1 Richard Trotta
1560 94 Richard Trotta
*Links to talks->* "Ali":https://redmine.jlab.org/attachments/download/940/KaonLT_Meeting_Mar_11.pdf "Richard's EIC Temple Draft 1":https://redmine.jlab.org/attachments/download/941/DRAFT1_mesonSF_EIC_Temple.pdf
1561 91 Richard Trotta
1562 88 Richard Trotta
----
1563 111 Richard Trotta
1564 90 Richard Trotta
h3. Feb 26, 2020
1565
1566
* Peter's changes to hcana should be coming soon. Richard will check with Mark when he is down there for an update.
1567 1 Richard Trotta
* Need to incorporate the latest "BCM updates":https://hallcweb.jlab.org/doc-public/ShowDocument?docid=1034 from Dave Mack.
1568 88 Richard Trotta
* Richard should look at the luminosity scalar analysis before and after the BCM changes once he gets his script working again.
1569 1 Richard Trotta
**  He is checking with Mark about this while he is down in jlab. 
1570
1571 86 Richard Trotta
----
1572 111 Richard Trotta
1573 87 Richard Trotta
h3. Feb 10, 2020 
1574 86 Richard Trotta
1575 1 Richard Trotta
----
1576 111 Richard Trotta
1577 83 Richard Trotta
h3. Jan 22, 2020
1578
1579 85 Richard Trotta
*Links to talks->* "Richard's Hall C Winter Talk Draft 1":https://redmine.jlab.org/attachments/download/937/KaonLTHallC_WinterTalk2020_Draft1.pdf
1580 1 Richard Trotta
1581 83 Richard Trotta
----
1582 111 Richard Trotta
1583 81 Richard Trotta
h3. Jan 15,2020
1584 82 Richard Trotta
1585 81 Richard Trotta
*Links to talks->* "Richard's Hall C Winter Talk Outline":https://redmine.jlab.org/attachments/download/936/KaonLTHallC_WinterTalk2020.pdf
1586
1587 78 Richard Trotta
----
1588 111 Richard Trotta
1589 78 Richard Trotta
h3. Jan 8,2020
1590 1 Richard Trotta
1591 79 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/76
1592 1 Richard Trotta
1593
* Richard
1594
** PID efficiency script is coming together
1595
*** Tighter cuts and cuts on timing, beta, etc. will be needed for cleaner electron cuts
1596
*** Hcal cut should be changed to cut around the mean normalized value instead of cutting above or below it only. This will assure electrons aren't lost.
1597 80 Richard Trotta
1598 113 Richard Trotta
----
1599 112 Richard Trotta
1600 80 Richard Trotta
h2. 2019 Meetings
1601 141 Stephen Kay
1602
----
1603 111 Richard Trotta
1604
h3. Dec 17,2019
1605 77 Richard Trotta
1606
Reminder: Mark Jones' commissioning analysis meetings are bi-weekly and announced by Mark
1607
1608
* Stephen
1609
** Number of passes finished for HMS calorimeter
1610
*** Still wiggles in all passes
1611
** Finished his report on calibrations, "DC and Calorimeters":https://redmine.jlab.org/documents/74
1612
** Put together a list of people's jobs from Regina over the next couple of months, "Regina Analysis Tasks":https://redmine.jlab.org/documents/75
1613 1 Richard Trotta
*** CUA will be putting together a similar list
1614 77 Richard Trotta
1615
* Richard
1616
** Fixed one error issue with SHMS calorimeter calibration code (discussed Dec 10th meeting), but still have one error
1617
** PID efficiency script plots are complete, but still some questions he needs to work out before a final version
1618
*** Eventually need to include tracking into PID efficiencies
1619
** Pete brought up the question for a number of multi-hits we are getting
1620
*** (Dead Time)+(Trigger efficiency)-EDTM
1621
1622 72 Richard Trotta
----
1623 111 Richard Trotta
1624 72 Richard Trotta
h3. Dec 10,2019
1625 74 Richard Trotta
1626
*Links to talks->* "Richard":https://redmine.jlab.org/documents/73
1627
1628
* Garth and Stephen were in the most recent SIDIS meeting
1629
** Wit had lots of hcana changes but they seem to be critical to our work 
1630 1 Richard Trotta
*** Changes such as new detector classes
1631
** Hopefully Wit will present these in the next commissioning meeting
1632 77 Richard Trotta
1633 74 Richard Trotta
* Stephen improved wiggles but still prevalent
1634
1635
* Richard finished HGCer calibrations, he concluded that the online parameters are sufficient
1636
** He also has been looking at SHMS calorimeter calibrations but has had issues running the scripts. Most likely a pathing issue.
1637
** The "tasks":https://redmine.jlab.org/projects/kltexp/wiki/Analysis_Tasks page has been updated with a section for efficiencies. 
1638
*** A PID efficiency script is currently being developed and hopefully should have some plots for our next meeting.
1639 75 Richard Trotta
1640 74 Richard Trotta
----
1641 111 Richard Trotta
1642 71 Richard Trotta
h3. Nov 26,2019
1643
1644
*Links to talks->* "Richard":https://redmine.jlab.org/issues/480
1645
1646
* Stephen
1647
** DC SHMS, small-angle has poor performance
1648
*** Tighter cuts or PID (currently only looks for electrons)
1649
** Vardan said calorimeter wiggles are an ongoing issue with no current solution
1650
1651 1 Richard Trotta
* Richard
1652 71 Richard Trotta
** The calibrations are nearing completion with only the HG Cherenkov and SHMS calorimeter yet to be finished. There are also smaller issues with some DC and HMS calorimeter runs.
1653
*** Richard will pick up looking at the HGCer calibrations from Vijay's scripts. 
1654
*** Richard will also be looking at the SHMS calorimeter and with the suggestion of getting some negatively polarized SHMS runs from Hem.
1655
** The HMS Cherenkov is finished with the conclusion that the calibrations from the online runs are good
1656
** We can begin looking forward towards efficiencies. 
1657
*** Garth suggested that looking at PID may be an advantageous first steps. Precise definitions of these PIDs will need to be logged.
1658
*** Clear notes on efficiencies steps will be needed. They will need to be redefined multiple times in multiple ways. 
1659
1660
* Hem
1661 70 Richard Trotta
** Has been looking at the calorimeter as well. 
1662
** He has seen the second band in the spectra for some runs, we suggested further looks into HMS hodoscope and subsequently reference times. A recalibration will need to be performed.  
1663
1664
----
1665 111 Richard Trotta
1666 1 Richard Trotta
h3. Nov 19,2019
1667 70 Richard Trotta
1668
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
1669
1670
* Richard
1671
** Finished up TDC cut paper going through the procedure (found "here":https://redmine.jlab.org/issues/500)
1672
** Needed to add Carlos pre-trigger designs to an appendix for the paper which clarifies the introduction section
1673
1674
* Stephen
1675
** Issues with DC calibration for only a few runs during each run period
1676
** "wiggles" in HMS calorimeter calibrations for some runs
1677
*** few runs where HMS cal totally failed (which was dependent on initial parameters)
1678
*** Spring looked worse than the rest (surprisingly), but this may be because online calibration wasn't great
1679 2 Richard Trotta
1680 68 Richard Trotta
----
1681 111 Richard Trotta
1682 68 Richard Trotta
h3. Nov 5,2019
1683
1684
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500
1685
1686
* Timing update (Stephen)
1687
** Reference times between Richard and Stephen are very similar and the GitHub is updated accordingly
1688
** Richard is going to add the trigger time cuts once the fall runs are finished (by end of week)
1689 1 Richard Trotta
** First pass of detector reference time parameter files finished
1690 68 Richard Trotta
1691
* Peter's hcana code (Richard and Stephen)
1692
** Peter's code does not remove ghost bands (already known), but now Stephen is seeing a strang horizontal band for just SHMS hodoscope 2D plots
1693
*** Richard has emailed Peter about the issue with no response yet (follow-up soon)
1694
** This means we still need the reference time amplitude cut with Peter's code but using just the amplitude cut with Mark's latest version of hcana should be sufficient for calibrations.
1695
1696
* Calibrations were decided to be done once per shift
1697
1698 127 Richard Trotta
* Next meeting schedule...
1699
** Small meetings Nov 12 and Nov 19 (at 3pm EST) so Richard and Stephen can iron out the timing and calibrations
1700 68 Richard Trotta
** November 26 (at 3pm EST) will be a larger meeting. 
1701
*** This is the rough deadline we made for finishing up calibrations. 
1702
*** This should be sufficient for all detectors (although hodoscope and HG which may persist). The ultimate goal is for all calibrations to be finished up before Winter break!!
1703
1704
----
1705 111 Richard Trotta
1706 62 Richard Trotta
h3. Oct 22,2019
1707 64 Richard Trotta
1708 62 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
1709 65 Richard Trotta
1710
* SHMS Reference Time Amplitude Cuts(Stephen)
1711
** Extra peaks in HG from cross-talk and "ghost-bands" due to ADC screw up
1712
*** cuts applied on SHMS ADC ref time amplitude (greater than zero) done before any further event selection and histogram filling
1713
** This is a temporary fix to "ghost-bands" and cross talk
1714
*** Although for HG there is still a small peak. The hodoscope is fine.
1715
** The time window is easier to set now.
1716
** DC has been fine (since it uses TDC)
1717
*** DC calibrations should be good to complete, other detectors need more fixes (i.e. the remaining "ghost-band")
1718
** Hodoscope still bad but this might be because of that "ghost-band", needs to be further investigated
1719 1 Richard Trotta
1720 67 Richard Trotta
* Peter's hcana fixes for reference time (Richard)
1721
** Peter implemented changes to hcana
1722 1 Richard Trotta
** Two major issues...
1723 67 Richard Trotta
## Amplitude goes to null and integral is low or negative which causes a rate-dependent efficiency. 
1724 1 Richard Trotta
*** Peter has used the average pulse value acquired over a large sample of runs for each detector. 
1725 67 Richard Trotta
## Timing offset between EL-REAL and 3/4 is 130 ns which causes junk tracks at high SHMS rates (~6% of the time)
1726
*** Peter created a routine to find the best offset by means of matching TDC and ADC
1727
** Richard has been checking for bugs in the code. 
1728
*** It seems to be ready to implement, Richard emailed Peter for confirmation on the implementation in our group directory
1729 1 Richard Trotta
1730 67 Richard Trotta
* Calibration of HMS detectors when the timing is agreed upon by Stephen and Richard.
1731 65 Richard Trotta
** Besides hodoscope which still has an issue with the script
1732 62 Richard Trotta
** Stephen and Richard are having a meeting late next week to determine time window values
1733
*** These will be relatively final, but on the wider side if adjustments need to be made in the future
1734 1 Richard Trotta
1735 61 Richard Trotta
-----
1736 111 Richard Trotta
1737 61 Richard Trotta
h3. Sep 24,2019
1738
1739 1 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
1740 61 Richard Trotta
1741 1 Richard Trotta
-----
1742 111 Richard Trotta
1743 59 Vijay Kumar
h3. Sep 10,2019
1744
1745 1 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/documents/69 "Ali":https://redmine.jlab.org/documents/72 "Richard":https://redmine.jlab.org/issues/500
1746
1747 55 Stephen Kay
-----
1748 111 Richard Trotta
1749 55 Stephen Kay
h3. August 26, 2019
1750
1751 1 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/documents/69 "Ali":https://redmine.jlab.org/documents/70 "Vijay":https://redmine.jlab.org/documents/71 "Richard":https://redmine.jlab.org/issues/500
1752 54 Richard Trotta
1753
----
1754 111 Richard Trotta
1755 54 Richard Trotta
h3. June 21, 2019
1756 1 Richard Trotta
1757 54 Richard Trotta
*Links to talks->* "Hallc Talk Outline":https://redmine.jlab.org/documents/60 
1758 42 Stephen Kay
1759
----
1760 111 Richard Trotta
1761 1 Richard Trotta
h3. June 14, 2019
1762 46 Richard Trotta
1763 42 Stephen Kay
*Links to talks->* "Hallc Talk Outline":https://redmine.jlab.org/documents/60 "Mireille":https://redmine.jlab.org/documents/64 "Update-Mireille":https://redmine.jlab.org/documents/65 "Vijay":https://redmine.jlab.org/attachments/download/814/Analy_update3.pdf
1764
1765 35 Stephen Kay
1766 1 Richard Trotta
----
1767 111 Richard Trotta
1768 36 Vijay Kumar
h3. June 4, 2019
1769 1 Richard Trotta
1770 35 Stephen Kay
*Links to talks->* "Stephen":https://redmine.jlab.org/documents/56 "Nathan":https://redmine.jlab.org/documents/57 "Vijay":https://redmine.jlab.org/documents/58 "Richard":https://redmine.jlab.org/documents/59 "Hallc Talk Outline":https://redmine.jlab.org/documents/60 "Mireille":https://redmine.jlab.org/documents/61
1771 1 Richard Trotta
1772 35 Stephen Kay
1773 1 Richard Trotta
----
1774 111 Richard Trotta
1775 1 Richard Trotta
h3. May 21, 2019
1776
1777 35 Stephen Kay
*Links to talks->* "Richard":https://redmine.jlab.org/documents/52 "Mireille":https://redmine.jlab.org/documents/? "Stephen":https://redmine.jlab.org/documents/53 "Nathan":https://redmine.jlab.org/documents/54 "Vijay":https://redmine.jlab.org/documents/55
1778
1779 1 Richard Trotta
----
1780 111 Richard Trotta
1781 1 Richard Trotta
h3. May 14, 2019
1782 35 Stephen Kay
1783 1 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/48 "Carlos' slides":https://redmine.jlab.org/documents/49 "Mireille":https://redmine.jlab.org/documents/50 "Stephen":https://redmine.jlab.org/documents/51
1784 35 Stephen Kay
1785 1 Richard Trotta
----
1786 111 Richard Trotta
1787 1 Richard Trotta
h3. April 30, 2019
1788
1789 35 Stephen Kay
*Links to talks->* "Richard":https://redmine.jlab.org/documents/45 "Richard's slides in wiki":https://redmine.jlab.org/projects/kltexp/wiki/Analysis_How-To "Brad Computing":https://redmine.jlab.org/documents/46 "Stephen":https://redmine.jlab.org/documents/47
1790 1 Richard Trotta
1791
----
1792
1793
h3. February 4, 2019
1794
1795
*Links to talks->* "Richard":https://redmine.jlab.org/documents/43 "Stephen":https://redmine.jlab.org/documents/44
1796
1797 113 Richard Trotta
----
1798 112 Richard Trotta
1799 141 Stephen Kay
h2. 2018 Meetings
1800
1801 111 Richard Trotta
----
1802
1803
h3. August 21, 2018
1804 1 Richard Trotta
1805 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
1806 1 Richard Trotta
1807 35 Stephen Kay
----
1808 111 Richard Trotta
1809 35 Stephen Kay
h3. August 8, 2018
1810
1811 1 Richard Trotta
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
1812
1813 35 Stephen Kay
----
1814 111 Richard Trotta
1815 1 Richard Trotta
h3. August 3, 2018
1816 35 Stephen Kay
1817
*Ongoing Tasks->* #381 #382 #383
1818 1 Richard Trotta
*Links to talks->*
1819 35 Stephen Kay
1820 1 Richard Trotta
----
1821 111 Richard Trotta
1822 1 Richard Trotta
h3. July 11, 2018
1823 35 Stephen Kay
1824 1 Richard Trotta
*Ongoing Tasks->* #381 #382 #383 #384
1825 35 Stephen Kay
1826 1 Richard Trotta
*Action items:*
1827 35 Stephen Kay
1828
* Update run plan, e.g. add prescales (Garth)
1829
* Check on details of: magnet cycling procedure, minimum angles, MCC fringe field steering, beam energy measurements, optics checks (Tanja)
1830
* Identify additional run coordinators (Tanja)
1831
* Encourage collaborators to take shifts, e.g. FIU (Pete)
1832
* Draft email about shifts etc. to collaboration (Tanja)
1833
* Develop diagnostic scripts and kaonLT specific (Richard, Ryan)
1834 1 Richard Trotta
* Continue documentation development, e.g. checklist, shift taker instructions, HowTo or link to generic Hall C HowTo, task list, web page (Richard, Garth)
1835 35 Stephen Kay
1836
*Discussions:*
1837
1838
* SHMS Aerogel Cherenkov: tray has been changed to SP-11 on 10 July, nominal time for change is 8 hours, one tray can stay in the hall to minimize overhead
1839
* HGC: waiting for re-installation
1840 1 Richard Trotta
* Trigger checkout: main items to keep in mind: fADC thresholds, timing HMS/SHMS - leading arm, possible rate limitations
1841
* Shifts
1842
* Diagnostics scripts and documentation
1843
* Personnel schedules
1844
1845
----
1846 111 Richard Trotta
1847 1 Richard Trotta
h3. June 28, 2018
1848
1849
*Links to talks->* "Richard":https://redmine.jlab.org/documents/34
1850
1851
*Action Items:*
1852
1853
* Develop and post shift schedule. Send out request. Find out who is KAONLT liaison (Tanja)
1854
* Contact potential run coordinators. (Tanja)
1855
* Aerogel tray exchange for start of experiment and coordination of future exchanges (Vladimir)
1856
* Update runplan and prepare documents needed for shift crew, e.g. run sheets (Garth)
1857
* Set up a web page to collect and link from Redmine - How-To documents, initial calibrations, etc. (Garth, Richard)
1858
* Adapt luminosity scan script to calculate kaon yields by run number for use during experiment by shift crew - has to be simple to use. (Richard)
1859
* Develop trigger/detector checkout plan (Tanja, initial draft)
1860
** Are all experts available at run start, experts needed: coincidence timing , Harp Scans, BCM calibrations, ...
1861
* Find out from JLab what the anticipated settings are for limit switches for both spectrometers and for separation angle in between them. Also find out what magnet cycling procedure should be used for L/T quality separation data (Tanja)
1862
* Find out if all aerogel trays needed for experiment can be stored inside Hall C to avoid having to open truck ramp (Vladimir)
1863
1864
*Analysis Updates:*
1865
1866
* Ryan 
1867
** resolving differences between his analysis and Richard's
1868
1869
* Richard
1870
** Discussed with Mark Jones and is cross checking his January luminosity scan analysis against Mark's. Realized that BCM calibrations (gains, offsets etc) are different - currently working on fixing that, presents current results - low curent point is ~10% below unity, discussion that this seems to indicate that BCM offsets are the issue as low current points would be most sensitive, is planning to also double-check the BCM calibration procedure - had discussion with Dave Mack at JLab
1871
** Presents a script developed for luminosity scans that determines yields for a run number input on command line. Discussion this could be good to adapt for kaon counting during experiment.
1872
1873
----
1874 111 Richard Trotta
1875 1 Richard Trotta
h3. May 31, 2018
1876 35 Stephen Kay
1877 1 Richard Trotta
*Links to talks->* "Samip":https://redmine.jlab.org/documents/30
1878 35 Stephen Kay
1879 1 Richard Trotta
----
1880 111 Richard Trotta
1881 1 Richard Trotta
h3. May 17, 2018 
1882 35 Stephen Kay
1883 2 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/29, "Ryan":https://hallcweb.jlab.org/DocDB/0009/000968/001/Presentation.pdf, "Samip":https://redmine.jlab.org/documents/30
1884 35 Stephen Kay
1885 111 Richard Trotta
* Luminosity scans (Richard, Ryan)
1886 35 Stephen Kay
** Carbon scan from April seems consistent with no boiling, LH3 and LD2 show deviation from unity, should check effect of EDTM events on efficiencies
1887
** Carbon scans from January (low rates) have large deviations from unity, in particular behavior at higher currents (>40uA), e.g. cpu dead time, that is not yet understood
1888 1 Richard Trotta
** discussion about pre-scale factors
1889 35 Stephen Kay
1890
* Discussion about Richard's script extracting and printing information from report files and trees including histograms
1891
** Add option for looking at yields with cuts on cointime, target window, and missing mass
1892 1 Richard Trotta
** Add option to look at real peak vs. background level
1893 35 Stephen Kay
1894
* H(e,e'p) kinematics investigation for fall run (Samip)
1895 1 Richard Trotta
** Optimal range is between electron angles of 17-20 degrees, time required ranges from ~1 hour at 17 degrees to ~3 hour at 20 degrees, other angles may be of interest for disentangling charge and current dependent effects
1896 35 Stephen Kay
1897
* *Action Items*
1898
** Luminosity scans at low rates from January (Richard)
1899
** Luminosity scans from April with corrected efficiencies, e.d. DT (Ryan)
1900
** H(e,e'p) and H(e,e') kinematics for upcoming Kaon LT run (Samip)
1901
** Kaon LT detailed run plan (Garth, Pete, Tanja)
1902 1 Richard Trotta
** Preparations, e.g. report files, diagnostic histograms and real time monitoring, shift worker instructions, optimization of trees (all)
1903
1904
----
1905 111 Richard Trotta
1906 35 Stephen Kay
h3. May 10, 2018
1907 2 Richard Trotta
1908 35 Stephen Kay
*Links to talks->* "Hem":https://redmine.jlab.org/documents/24, "Richard":https://redmine.jlab.org/documents/23, "Ryan, ":https://redmine.jlab.org/documents/20 "Samip":https://redmine.jlab.org/documents/26
1909
1910
* Luminosity Scans January 2018 (Richard)
1911
** Tracking-based analysis for Runs 1415-1423, .. for now focus on HMS, typical HMS S1X rates are <
1912
** Cuts applied: PID for electrons (Cer, Cal), acceptance (delta)
1913
** Efficiency calculation was investigated in detail and applied using scalers from trees
1914
** Results for carbon (normalized to 30uA) show large variation - need to understand
1915
** *Next steps:*
1916
*** Double check calculation of computer lifetime, look for differences in TRIG and PRETRIG scalers
1917
*** Check stability of pre-scale (Ryan saw changes within runs)
1918
*** Check if detector calibrations for runs are implemented correctly
1919 1 Richard Trotta
*** Analyze with Ryan's cuts
1920 35 Stephen Kay
1921
* Luminosity Scans April 2018 (Ryan)
1922
** Confirms Richard's earlier finding that scaler-based analysis is not reliable and that it's best to analyze event-by-event
1923
** Tracking-based analysis for runs 2073-2095
1924
** Cuts applied: PID for electrons (TOF, Cal, Chi2), acceptance (delta and angles), BCM4a
1925
** Included most recent detector calibrations in replay of these runs
1926
** Efficiencies from report file mainly, may need to update tracking efficiency implementation
1927
** Found that calculations of computer deadtime requires different set of scalers for runs from January to those from April 2018
1928
** Results show carbon yields consistent with unity within error (0.5% error bars), and boiling for hydrogen and deuterium
1929 5 Richard Trotta
** *Next steps:*
1930 35 Stephen Kay
*** Check tracking efficiency
1931
1932 1 Richard Trotta
* *Global comments on Luminosity Scans (so far)*
1933 35 Stephen Kay
** April 2018 scans show hydrogen and deuterium target boiling on level of 3-4%, Carbon is consistent with no boiling, as expected - based on description, new targets are expected to have less boiling than those used previously, e.g. in FPI2. Double check this.
1934
** Efficiencies in report files need to be updated, e.g. CPU deadtime (Richard)
1935
** Check if BCM4a is the one closest to the target - get a map of the hall (Richard, Ryan)
1936
** Uncertainties on current
1937 1 Richard Trotta
** Detector calibrations
1938 35 Stephen Kay
** HMS vs. SHMS
1939
1940
* eK+ coincidence time from SIDIS Spring 2018 run (Samip)
1941
** Worked with Mark Jones on coincidence time calculation - now available in hcana (see Samip's 10 May 2018 email for more details)
1942
** runs used in this analysis: 3423 with Q2=3.1 GeV2 and W=2.78 GeV
1943
** Coincidence time spectrum shows peak separations >2 ns corresponding to different accelerator frequency
1944
** Missing mass spectra: Kaon peak clearly visible, also see pions even after cuts
1945 1 Richard Trotta
** Found that pions appear localized in phase space - seems to be due to end point in kinematic phase space
1946 2 Richard Trotta
** *Next steps:*
1947 35 Stephen Kay
*** Look for a run with kaon momentum closer to 3 GeV/c (aerogel threshold is ~3 GeV/c for kaons for n=1.015)
1948
1949
* Yield normalized ratios from SIDIS (Hem)
1950
** Yield ratios of data to MC match well in shape, but normalization seems not quite right
1951 4 Richard Trotta
** *Next steps:*
1952
*** Check if efficiencies, currents, run time etc. are taken into account correctly
1953
1954 35 Stephen Kay
----
1955 111 Richard Trotta
1956 4 Richard Trotta
h3. April 26, 2018
1957 35 Stephen Kay
1958 4 Richard Trotta
*Links to talks->* "Richard,":https://redmine.jlab.org/documents/18 "Ryan, ":https://redmine.jlab.org/documents/20 "Samip":https://redmine.jlab.org/documents/25
1959 35 Stephen Kay
1960
* Discussion luminosity scan analysis (earlier scan) - Richard
1961
** Shown is a scaler-based analysis using scalers from report file and from ROOT tree - the values are different, why that is has to be checked
1962
** Notes on efficiencies in report file:
1963
*** DT (EDTM) is not electronic deadtime. Instead use for now 50ns* trigger rate for HMS and 100ns* trigger rate for SHMS
1964
*** Cherenkov efficiency seems low (check if that is due to PID, thresholds, pi/e, etc)
1965
*** Tracking efficiency needs to be checked
1966
*** 3/4 trigger efficiency seems ok
1967
* Discussion luminosity scan analysis (later scan) - Ryan
1968
** Fewer carbon runs than earlier scan
1969 111 Richard Trotta
** Shown is a tracking-based analysis using data from the ROOT trees
1970 35 Stephen Kay
** First results for carbon, LH3, and LD2, but efficiencies need to be checked
1971
* SIDIS analysis - Hem
1972
** Shown is a data/MC comparison for different kinematic settings. Agreement in shape is very good. Normalization has yet to be applied.
1973
** Discussion about agreement in z and apparent offset - relation of this offset with spectrometer offset
1974
* Analysis of exclusive events in SIDIS - Samip
1975
** Shown is a look at the first kaon events in exclusive limit of SIDIS data
1976
** Ongoing work on implementing coincidence time into tree
1977
* Discussion of run plan, and in particular possible low Q2/low energy
1978
** Assume that kaon low Q2=0.4 already included - have kinematics with specified beam energies, if needed
1979
** For pion form factor and LT, have two possible settings that can use the prescribed beam energies: Q2=1.45 and 0.35 GeV2 - prioritize towards the higher Q2 as not as sensitive to offsets
1980
** Garth will put this together in a draft email
1981 12 Richard Trotta
1982
----
1983 111 Richard Trotta
1984 12 Richard Trotta
h3. March 29, 2018
1985 35 Stephen Kay
1986 13 Richard Trotta
*Links to talks->* "Richard, ":https://redmine.jlab.org/documents/16 "Samip":https://redmine.jlab.org/documents/27
1987 35 Stephen Kay
1988
* Details of adding points to fall run plan - will be ready sooner, likely in week of 4/1 (Garth, Samip, Tanja)
1989
* Luminosity scans (Ryan, Andres, Richard, Pete)
1990
* Macros, SIDIS analysis (Hem, Anashe)
1991
* Elastic data (TBD)
1992 14 Richard Trotta
1993 18 Richard Trotta
----
1994 111 Richard Trotta
1995 18 Richard Trotta
h3. February 22, 2018
1996 35 Stephen Kay
1997 18 Richard Trotta
*Links to talks->* "Andres":https://redmine.jlab.org/documents/19
1998 35 Stephen Kay
1999
*  Discussion of Andres' slides on elastic W calculation in hcana - initial issue with negative W values seems to be due to outdated information in standard.kinematics file. Additional investigation ongoing.
2000
* Brief description of Samip's work - working on coincidence timing decoding with JLab staff and re-optimization of kinematics
2001
* Discussion of Richard's slides on run plan kinematics and preparations -
2002
** everyone agrees that in general want to have as many L/T cross section separations as possible in a robust run plan balancing statistics vs. systematics
2003
** before actual run may want to do a 3D optimization in all kinematic variables to get the best possible delta(epsilon) for the L/T separations
2004
** for each setting will need 1-2 shifts for calibrations - need to negotiate with other experiments in run group
2005
** kinematics plots W-Q2 show that still need to do some optimization
2006
** run sheets: include raster size, update coincidence count labeling, and carbon target labeling
2007 26 Richard Trotta
* Discussion of next meeting. Garth at JLab 8-16 March - might have meeting during that time.
2008 35 Stephen Kay
2009
* *Action Items:*
2010
** Post slides/notes from this meeting and procedure to set up hcana in Redmine (Tanja)
2011
** Update run sheet and kinematic optimization for W/Q2 (Garth)
2012
** Circulate elastic calculations for kinematic settings (Samip)
2013
** Continue investigation of elastic data and run plan kinematics (Andres/Richard)
2014
** Test software installation instructions (Pete)
2015 32 Stephen Kay
** Draft email to JLab management about need for small angle beam pipe - need to have HMS minimum angle of less than 13 degrees for kaon L/T separations (Tanja) 
2016
2017 1 Richard Trotta
----