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Kaon LT Meetings » History » Version 629

Vijay Kumar, 10/17/2023 01:57 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
7 244 Vijay Kumar
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8 284 Vijay Kumar
9 458 Richard Trotta
h2. 2023 Meetings
10 480 Richard Trotta
11 620 Richard Trotta
---
12
13 627 Vijay Kumar
h3. October 17, 2023
14
15
* Vijay
16
** The testing of global fitting parameters (offsets) for the summer 2019 data (Garth study) has been completed. 
17
** It has been determined that employing a single set of offsets for all energy levels within the summer 2019 dataset does not adequately address all variables.
18 629 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.
19 627 Vijay Kumar
** attachment:Vijay_Oct17_23.pdf
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---
22
23 623 Richard Trotta
h3. October 10, 2023
24
25 626 Garth Huber
* Garth/Nacer Notes attachment:mtg_23oct10.txt
26 623 Richard Trotta
* Richard
27 624 Richard Trotta
** attachment:KaonLTMeeting10_10_23.pdf
28 625 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.
29 623 Richard Trotta
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---
31
32 620 Richard Trotta
h3. October 3, 2023
33
34 622 Garth Huber
* Garth/Nacer/Richard Notes attachment:mtg_23oct03.txt
35 620 Richard Trotta
* Richard
36
** attachment:kaon_xsects_Q2p1W2p95.pdf
37 621 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.
38 622 Garth Huber
* Plots from post-meeting on CoinTime "leakage"
39
** attachment:cointime_mmpi_10p6.pdf
40
** attachment:heep_coin_time_10p6.pdf
41
** attachment:ctime_vs_beta.pdf
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** attachment:cointime_beta_10p6.pdf
43 613 Richard Trotta
44
---
45
46
h3. September 26, 2023
47
48 617 Garth Huber
* Garth/Nacer Notes attachment:mtg_23sep26.txt
49 613 Richard Trotta
* Richard
50
** attachment:kaon_unsep_xsects_Q2p1W2p95.pdf
51
** Fixed issues with the binning. Adapting parameter optimization code for iterating weights of SIMC
52
** Ratio for low eps of 2.1 looks good (all within 0.1-2.0), but high eps is all over the place.
53 614 Garth Huber
* Alicia
54 618 Alicia Postuma
** Explored coin time: interesting feature depends on missing mass
55
** attachment:log_ctime.pdf dark blue: no MM cut, green: loose MM cut, red: tight MM cut
56
** attachment:mmcointime.pdf 2D plot of coin time vs MM
57 613 Richard Trotta
58 491 Vijay Kumar
---
59
60 612 Garth Huber
h3. September 19, 2023
61
62 617 Garth Huber
* Garth/Nacer Notes attachment:mtg_23sep19.txt
63 619 Alicia Postuma
* Alicia
64
** Finalizing asymmetry analysis: three unresolved questions on PID/event selection
65
** attachment:Asymmetry_Postuma_Sep16.pdf
66 612 Garth Huber
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---
68
69 609 Garth Huber
h3. September 12, 2023
70
71 617 Garth Huber
* Garth/Nacer Notes attachment:mtg_23sep12.txt
72 611 Garth Huber
* Follow-up meeting on LTsep procedure attachment:LTsep_mtg_23sep13.txt
73 609 Garth Huber
74
---
75
76 605 Vijay Kumar
h3. September 07, 2023
77
78 616 Garth Huber
* Garth/Nacer Notes attachment:mtg_23sep07.txt
79 1 Richard Trotta
* Vijay
80 606 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
81
* Richard
82 607 Richard Trotta
** "HMS Current Carbon":https://redmine.jlab.org/attachments/2118
83
** "HMS Current LH2":https://redmine.jlab.org/attachments/2119
84
** 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)
85 608 Alicia Postuma
* Alicia
86
** Preliminary Q2 scan: attachment:Scan_prelim.pdf
87 605 Vijay Kumar
88
---
89
90 600 Richard Trotta
h3. August 31, 2023
91
92 603 Garth Huber
* Garth/Nacer Notes attachment:mtg_23aug31.txt
93 600 Richard Trotta
* Richard
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** attachment:KaonLTMeeting8_31_23.pdf
95 602 Richard Trotta
** "Regression HMS carbon current":https://redmine.jlab.org/attachments/2072
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** "Regression HMS carbon rate":https://redmine.jlab.org/attachments/2074
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** "Regression HMS LH2 current":https://redmine.jlab.org/attachments/2071
98
** "Regression HMS LH2 rate":https://redmine.jlab.org/attachments/2073
99
** "Regression SHMS carbon current":https://redmine.jlab.org/attachments/2075
100
** "Regression SHMS carbon rate":https://redmine.jlab.org/attachments/2076
101
** "Regression SHMS LH2 current":https://redmine.jlab.org/attachments/2077
102
** "Regression SHMS LH2 rate":https://redmine.jlab.org/attachments/2078
103 600 Richard Trotta
** Luminosity analysis is finally complete. Results are consistent with Carlos Yero!
104 604 Garth Huber
* Alicia
105 608 Alicia Postuma
** Binning Monte Carlo: attachment:Asymmetry_Postuma_BinMC2.pdf
106 604 Garth Huber
* Garth
107
** In-plane offset global constrained fit attachment:results_summary_23aug28.txt
108
** Out-of-plane offset plot attachment:offset_oop.pdf
109 600 Richard Trotta
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---
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112 595 Vijay Kumar
h3. August 24, 2023
113
114 599 Garth Huber
* Garth/Nacer Notes attachment:mtg_23aug24.txt
115 595 Vijay Kumar
* Vijay
116 598 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
117 596 Vijay Kumar
** Starting soon the elastic cross-section study for the finalization.
118 595 Vijay Kumar
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---
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122 591 Garth Huber
h3. August 17, 2023
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* Garth's Notes attachment:mtg_23aug17.txt
125 593 Garth Huber
* Alicia
126 592 Alicia Postuma
** Several updates: pi-delta BSA and binning for pi-neutron analysis
127
** attachment:Asymmetry_Postuma_PiDelta.pdf
128
** attachment:Asymmetry_Postuma_Binning2.pdf
129
** Also discussion of error analysis: will use unsimplified version of asymmetry error.
130 594 Nathan Heinrich
* Nathan
131
** Slides from conlsion of hgcer calibration https://redmine.jlab.org/attachments/2063
132 591 Garth Huber
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---
134
135 589 Richard Trotta
h3. August 10, 2023
136 1 Richard Trotta
137 590 Garth Huber
* Garth's Notes attachment:mtg_23aug10.txt
138 589 Richard Trotta
* Richard
139
** attachment:KaonLTMeeting8_10_23.pdf
140
** t/phi binning of kinematics is looking a bit odd. The procedure is broken down here.
141 592 Alicia Postuma
* Alicia
142
** Working on binning data for pi-neutron asymmetry
143
** attachment:Asymmetry_Postuma_Binning1.pdf
144 589 Richard Trotta
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---
146
147 588 Garth Huber
h3. July 27, 2023
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* Garth's Notes attachment:mtg_23jul27.txt
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---
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153 581 Vijay Kumar
h3. July 20, 2023
154
155 587 Garth Huber
* Garth's Notes attachment:mtg_23jul20.txt
156 581 Vijay Kumar
* Vijay
157
** 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
158 584 Vijay Kumar
** The final number of this is *{color:green}@0.9979 ± 4.004e-05@*.  
159 585 Richard Trotta
* Richard
160 586 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
161 585 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.
162 581 Vijay Kumar
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---
164
165 580 Garth Huber
h3. July 13, 2023
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* Garth's Notes attachment:mtg_23jul13.txt
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---
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171 577 Garth Huber
h3. July 6, 2023
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* Garth's Notes attachment:mtg_23jul06.txt
174 578 Vijay Kumar
* Vijay
175 582 Vijay Kumar
** The HMS Calorimeter efficiency study from all the production data at Q2 = 0.38 GeV. attachment:Vijay_July6_2023.pdf
176 577 Garth Huber
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---
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179 570 Richard Trotta
h3. June 28, 2023
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181 573 Garth Huber
* Garth's Notes attachment:mtg_23jun28.txt
182 576 Garth Huber
* Richard's Notes from meeting with Peter attachment:peter_mtg_23jun25.txt
183 572 Vijay Kumar
* Vijay
184
** EDTM Live Time testing for the Lumi study from summer 2019 data is done.
185
** attachment:Vijay_KaonLT_meeting_Jun28_2023.pdf
186 570 Richard Trotta
* Richard
187
** attachment:KaonLTMeeting6_28_23.pdf
188
** Incorporated Peter (and other's) bcm correction. Some things look better, but there are issues with some TLT values, which is throwing yields off. 
189
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---
191
192 569 Garth Huber
h3. June 22, 2023
193 568 Richard Trotta
194
* Garth's Notes attachment:mtg_23jun22.txt
195 1 Richard Trotta
* Richard
196 570 Richard Trotta
** attachment:KaonLTMeeting6_22_23.pdf
197
** 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.
198 568 Richard Trotta
199
---
200 562 Richard Trotta
201 574 Garth Huber
h3. June 15, 2023
202
203
* Dave's Notes attachment:mtg_23jun15.txt
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---
206
207 562 Richard Trotta
h3. June 8, 2023
208 1 Richard Trotta
209
* Dave's Notes attachment:mtg_23jun08.txt
210 566 Nathan Heinrich
* Richard
211 565 Garth Huber
** attachment:KaonLTMeeting6_8_23.pdf
212 562 Richard Trotta
** Linear regression for production also includes higher rates (>1kHz) and things still look fine.
213
** LH2 needs cuts to be adjusted, things are pretty off for now. 
214
* Alicia
215
** attachment:Asymmetry_Postuma_Updates_2023.pdf
216 567 Nathan Heinrich
** Errors, models for BSA analysis
217
* Nathan
218
** Finished Noble gas calibration attachment:CalibUpdate_2023-06-15.pdf
219 563 Alicia Postuma
** Uploaded slides from previous update, with a few extra plots that I had 
220 562 Richard Trotta
221
---
222 561 Richard Trotta
223
h3. June 1, 2023
224 564 Garth Huber
225 561 Richard Trotta
* Dave's Notes attachment:mtg_23jun01.txt
226
* Richard
227
** attachment:KaonLTMeeting6_1_23.pdf
228
** 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.
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---
231 551 Vijay Kumar
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h3. May 25, 2023
233 555 Garth Huber
234 551 Vijay Kumar
* Garth's Notes attachment:mtg_23may25.txt
235 552 Vijay Kumar
* Vijay
236 553 Vijay Kumar
** HMS Calorimeter efficiency study at Q2 = 0.38 GeV2, for all production and heep coin data. attachment:Vijay_May25_2023.pdf
237 551 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. 
238 559 Alicia Postuma
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* Alicia
240
** Missing mass by bins - added delta: attachment:mm_simcdata2.pdf
241 551 Vijay Kumar
242
---
243 544 Vijay Kumar
244 550 Garth Huber
h3. May 18, 2023
245 549 Garth Huber
246 548 Richard Trotta
* Garth's Notes attachment:mtg_23may18.txt
247
* Ali
248
** Out of Plane offset study from KaonLT Heep Coindata using Tanja's method.
249 544 Vijay Kumar
** attachment:KaonLT_Meeting_May_18.pdf
250
* Vijay
251 546 Vijay Kumar
** Raster checks of the summer 2019 data. attachment:Raster_check_summer19.pdf
252 547 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.
253
** I do not think that we will need to make any changes to the Raster in the summer 2019 data. 
254 548 Richard Trotta
** Please check the attached file and let me know if you have any concerns of the study. 
255
* Richard
256
** attachment:hms_regression_current_carbon.pdf ,attachment:hms_regression_rate_carbon.pdf , attachment:shms_regression_current_carbon.pdf , attachment:shms_regression_rate_carbon.pdf
257 547 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.
258 544 Vijay Kumar
259
---
260 538 Vijay Kumar
261
h3. May 11, 2023
262 543 Garth Huber
263 541 Richard Trotta
* Dave's Notes attachment:mtg_23may11.txt
264 539 Richard Trotta
* Richard
265
** attachment:KaonLTMeeting5_11_23.pdf
266 538 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.
267
* Vijay
268
** HMS Calorimeter efficiency study. attachment:Vijay_May11_2023.pdf
269
** It looks like the efficiency is less from the production data (Q2 = 0.38 GeV2, High e).
270
** I'll take a look at the heep coin data in this run period of the experiment and get the efficiency. 
271 547 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.
272
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* Ali
274
** Raster Y sign test. Original sign was working fine.
275 1 Richard Trotta
** attachment:KaonLT_Meeting_May_11.pdf
276 558 Alicia Postuma
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* Alicia
278 560 Alicia Postuma
** Updates on BSA analysis
279 558 Alicia Postuma
** attachment:Asymmetry_Postuma_May1.pdf
280 538 Vijay Kumar
281
---
282 535 Richard Trotta
283
h3. May 4, 2023
284 536 Garth Huber
285 535 Richard Trotta
* Garth's Notes attachment:mtg_23may04.txt
286
* Richard
287
** attachment:KaonLTMeeting5_4_23.pdf
288
** 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.
289
** 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.
290 557 Alicia Postuma
** Found a possible cut issue with the proton peak where cuts were not being properly applied. This is still early in checks.
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* Ali
293
** BPM calibration check. Using new file for Spring 2019 data.
294 559 Alicia Postuma
** attachment:KaonLT_Meeting_May_4.pdf
295
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* Alicia
297 535 Richard Trotta
** Missing mass by bins - added SIMC: attachment:mm_simcdata1.pdf
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300 532 Vijay Kumar
301
h3. April 27, 2023
302 534 Garth Huber
303 532 Vijay Kumar
* Garth/Stephen Notes attachment:mtg_23apr27.txt
304 533 Richard Trotta
* Vijay
305
** Updates of the analysis are attached. attachment:Vijay_Apr27_2023.pdf
306
* Richard
307
** attachment:KaonLTMeeting4_27_23.pdf
308
** There are still issues with the TLT for some carbon lumi runs. Jacob and I are meeting tomorrow to discuss things.
309 532 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.
310
 
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312 529 Garth Huber
313
h3. April 20, 2023
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315 530 Nathan Heinrich
* Garth/Stephen Notes attachment:mtg_23apr20.txt
316
* Nathan - Presented updates on the aerogel calibration. attachment:AerogelCalib_2023-04-20.pdf
317 531 Nathan Heinrich
** looks like the calibration has significantly improved the separation between signal and zeros.
318 529 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
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---
321 523 Ali Usman
322 1 Richard Trotta
h3. April 13, 2023
323 528 Garth Huber
324 524 Vijay Kumar
* Garth's Notes attachment:mtg_23apr13.txt
325
* Vijay
326 523 Ali Usman
** The details of the update are attached here. attachment:Vijay_Apr13_2023.pdf
327
* Ali
328
** Pion PID study for high Q2 KaonLT data.
329
** Spring 2019 data (low e) attachment:KaonLT_Meeting_Apr_13.pdf
330
331
---
332 519 Richard Trotta
333 514 Vijay Kumar
h3. April 6, 2023
334 527 Garth Huber
335 517 Richard Trotta
* Garth/Stephen Notes attachment:mtg_23apr06.txt
336
* Richard
337 518 Richard Trotta
** attachment:KaonLTMeeting4_6_23.pdf
338
** "10p6 c #1":https://redmine.jlab.org/attachments/1841 "10p6 LH2 #1":https://redmine.jlab.org/attachments/1843
339
** "10p6 c #2":https://redmine.jlab.org/attachments/1840 "10p6 LH2 #2":https://redmine.jlab.org/attachments/1844
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** "10p6 c #3":https://redmine.jlab.org/attachments/1842 "10p6 LH2 #3":https://redmine.jlab.org/attachments/1845
341 517 Richard Trotta
** "8p2 c #1":https://redmine.jlab.org/attachments/1838 "8p2 LH2 #1":https://redmine.jlab.org/attachments/1839
342 521 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.
343 517 Richard Trotta
** I still need to meet with Carlos to figure out HMS scaler issue.
344
** In the process of subtracting proton events from MM for kaon to try and clean up the right setting (update next week).
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h3. March 30, 2023
349 515 Garth Huber
350 514 Vijay Kumar
* Garth/Stephen Notes attachment:mtg_23mar30.txt
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* Vijay
352
** Switched the pion routine in SIMC for the pion cross-section.
353
** Re-ran SIMC to simulate the p(e, e’π+)n reaction for all the settings of Q2 = 0.38 GeV2 data.
354
** More details are in the talk. attachment:Vijay_KaonLT_meeting_Mar30_2023.pdf
355
356
---
357 510 Ali Usman
358
h3. March 23, 2023
359 513 Garth Huber
360
* Garth's Notes attachment:mtg_23mar23.txt
361
* Carlos
362
** relative yields rate dependence
363
https://hallcweb.jlab.org/DocDB/0012/001209/001/rate_dependence_slides_cyero_Mar09_2023.pdf
364
** event types definitions
365 510 Ali Usman
https://hallcweb.jlab.org/DocDB/0012/001208/001/event_type_definitions_COIN_DAQ_cyero_Mar16_2023.pdf
366
* Ali
367 512 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
368 511 Richard Trotta
* Richard
369
** attachment:
370
** Carlos and I discussed some oddities in a comparison of our lumi scaler results for the HMS.
371
** "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)
372
** Alicia, Ali, and I are meeting tomorrow at 2:30 to discuss the odd right setting peaks.
373 510 Ali Usman
374
---
375 506 Richard Trotta
376
h3. March 16, 2023
377 516 Garth Huber
378 506 Richard Trotta
* Garth/Stephen Notes attachment:mtg_23mar16.txt
379 507 Richard Trotta
* Richard
380 506 Richard Trotta
** attachment:KaonLT_Meeting_3_16_23.pdf
381
** 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
382 509 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. 
383
* Nathan
384 506 Richard Trotta
** presented recent updates on the Aerogel calibration: attachment:AerogelCalib_2023-03-16.pdf
385
** will make multiple calibrations based on PMT4+ dependance
386
387 501 Garth Huber
---
388 1 Richard Trotta
389 501 Garth Huber
h3. March 09, 2023
390 513 Garth Huber
391 504 Garth Huber
* Garth/Stephen Notes attachment:mtg_23mar09.txt
392 505 Garth Huber
* Nathan
393 503 Garth Huber
** Presented the an update to the aerogel calibration, including a 3 year old presentation from Petr
394 501 Garth Huber
*** presentation attachment:presentation-2020-09-23-kaonlt-summary.pdf
395
** Also working on the anomalous LD- setting. Things not making sense. Requesting back up.
396
397 1 Richard Trotta
---
398 490 Vijay Kumar
399
h3. March 02, 2023
400 513 Garth Huber
401 494 Richard Trotta
* Garth's Notes attachment:mtg_23mar02.txt
402 495 Richard Trotta
* Richard
403 497 Richard Trotta
** attachment:KaonLTMeeting3_2_23.pdf
404 498 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
405 494 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
406 490 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
407
* Vijay
408
** MMpi cut updated.
409
** 8th t-bin adjusted.
410 492 Vijay Kumar
** Events per t-bin calculated for each epsilon setting.
411 490 Vijay Kumar
** Experimental Yield calculation in each bin is done.
412 478 Richard Trotta
** More details of the update are in the slides. attachment:KaonLT_meeting_March02_2023.pdf
413 1 Richard Trotta
414 478 Richard Trotta
---
415 488 Ali Usman
416
h3. Feb 23, 2023
417 513 Garth Huber
418 488 Ali Usman
* Garth/Stephen Notes  attachment:mtg_23feb23.txt
419
* Ali
420
** Update on HMS Cherenkov and Calorimeter efficiency study. attachment:KaonLT_Meeting_Feb_23.pdf
421 1 Richard Trotta
** Looking at wide range of Heep Singles settings from KaonLT data (primarily low e data).
422 488 Ali Usman
423
---
424 486 Vijay Kumar
425
h3. Feb 16, 2023
426 513 Garth Huber
427 484 Vijay Kumar
* Garth/Stephen Notes attachment:mtg_23feb16.txt
428
* Vijay
429
** Updated the diamond cut for Q2 = 0.38 GeV2 data.
430
** t resolution checked from the center setting of SIMC at low epsilon.
431
** Binned the data in t (total 8 bins).
432
** t resolution checked for each t bin too.
433 485 Vijay Kumar
** Working to bin the data in Phi (16 bins).
434 484 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
435
436
437
---
438 481 Ali Usman
439
h3. Feb 9, 2023
440 483 Garth Huber
441 481 Ali Usman
* Garth/Stephen Notes attachment:mtg_23feb09.txt
442
* Ali
443
** attachment:KaonLT_Meeting_Feb_09.pdf
444 478 Richard Trotta
** HMS Cerenkov and Calorimeter Study for different kinematics settings.
445
* Richard
446
** attachment:KaonLTMeeting2_9_23.pdf
447 479 Richard Trotta
** Fixed the odd right distribution for Q2=5.5 by applying more strict cointime cuts.
448 326 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.
449 405 Vijay Kumar
450 1 Richard Trotta
---
451 474 Vijay Kumar
452
h3. Feb 2, 2023
453 476 Garth Huber
454 475 Richard Trotta
* Garth/Stephen Notes attachment:mtg_23feb02.txt
455
* Richard
456
** attachment:KaonLTMeeting2_2_23.pdf
457
** The simc portion of the LT_analysis code is working but there is a bug I am sorting out which produces incorrect plots
458
** 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.
459 474 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.
460
* Vijay
461 477 Alicia Postuma
** Update from the analyzed low epsilon data of Q2 = 0.38 GeV2. attachment:KaonLT_meeting_Feb2_2023.pdf
462
* Alicia
463
** Preliminary asymmetry results: Q2=3/W=2.32, Q2=4.4/W=2.74, Q2=2.115/W=2.95, aluminum
464
** attachment:Asymmetry_Postuma_Feb2.pdf
465 474 Vijay Kumar
466
467
---
468 469 Richard Trotta
469
h3. Jan 26, 2023
470 473 Garth Huber
471 469 Richard Trotta
* Stephen's Notes attachment:mtg_23jan26.txt
472
* Richard
473
** attachment:KaonLTMeeting1_26_23.pdf attachment:FullAnalysis_Q5p5W3p02_highe.pdf
474
** 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.
475 470 Nathan Heinrich
** SIMC vs Data plots for Q2=5p5 show a very small SIMC. Need to investigate further.
476
* Nathan
477
** attachment:RefTimes_Update_2023-01-26.pdf 
478
** Asked Carlos Yero about the cointime ref times, he sent me an older email chain attachment:ref_times_email_exchange.txt
479
*** only SHMS variables are used.
480 471 Nathan Heinrich
** Presented ref times plots, and suggested cuts.
481
*** Cuts are already set up and pull request is sent to LTSep_Analysis_2022 branch
482 469 Richard Trotta
483
---
484 458 Richard Trotta
485
h3. Jan 19, 2023
486 467 Garth Huber
487 462 Ali Usman
* Garth/Stephen Notes  attachment:mtg_23jan19.txt
488
* Ali
489 460 Vijay Kumar
** Looking at HMS Calorimeter and Cherenkov Efficiency and PID. attachment:KaonLT_Meeting_Jan_19.pdf
490
* Vijay
491
** attachment:Vijay_Jan19_2023.pdf
492 464 Alicia Postuma
** Trying to understand the pion cross-section across the acceptance. 
493
* Alicia
494
** attachment:Asymmetry_Postuma_Updates-6.pdf
495
** Added dummy target subtraction to asymmetry calculation
496
** Discussed fitting to extract cross-section ratio
497 458 Richard Trotta
** Requested: details on error calculations: attachment:Asymmetry_Errors.pdf
498
* Richard
499
** attachment:KaonLTMeeting1_19_23.pdf
500
** Implemented Jacob's diamond cut script into the setup before Bill's code. This also does the t-binning as well.
501 461 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.
502 468 Garth Huber
* Nathan
503 461 Nathan Heinrich
** Started working on reference times
504
** has some extra peaks in some runs
505 1 Richard Trotta
*** Should be explained by the triggers on in each run
506 468 Garth Huber
** attachment:RefTimes_Update_2023-01-19.pdf
507
508 458 Richard Trotta
----
509 453 Ali Usman
510
h3. Jan 4, 2023
511 457 Garth Huber
512 453 Ali Usman
* Garth's Notes attachment:mtg_23jan04.txt
513
* Ali
514 1 Richard Trotta
** attachment:Jan4_KLT_Meeting.pdf
515 458 Richard Trotta
** All Kaon_LT data has been replayed over the holidays. Slide show list of major changes for the replay.
516
517 459 Richard Trotta
---
518 458 Richard Trotta
519 454 Ali Usman
h2. 2022 Meetings
520 453 Ali Usman
521
---
522 450 Richard Trotta
523
h3. Dec 21, 2022
524 457 Garth Huber
525 450 Richard Trotta
* Garth/Stephen Notes attachment:mtg_22dec21.txt
526 451 Richard Trotta
* Richard
527 450 Richard Trotta
** attachment:KaonLTMeeting12_21_22.pdf
528
** 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. 
529
** 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.
530
531
---
532 449 Garth Huber
533
h3. Dec 14, 2022
534 457 Garth Huber
535 449 Garth Huber
* Garth/Stephen Notes attachment:mtg_22dec14.txt
536
537
---
538 442 Richard Trotta
539 440 Ali Usman
h3. Dec 7, 2022
540 457 Garth Huber
541 440 Ali Usman
* Garth/Stephen Notes attachment:mtg_22dec07.txt
542 442 Richard Trotta
* Ali
543 443 Richard Trotta
** New error calculation (binomial) for efficiencies and Live Times. attachment:KaonLT_Dec_5.pdf
544 446 Richard Trotta
* Richard
545 443 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
546
** A new subroutine has been added for the hcana variable calculations in SIMC, this is ongoing.
547
** 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.
548 448 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.
549 440 Ali Usman
* Alicia: attachment:Asymmetry_Postuma_Dec07.pdf
550
551
---
552 439 Garth Huber
553
h3. Nov 30, 2022
554
555
* Garth/Stephen Notes attachment:mtg_22nov30.txt
556
557
---
558 437 Garth Huber
559
h3. Nov 23, 2022
560
561 438 Alicia Postuma
* Garth/Stephen Notes attachment:mtg_22nov23.txt
562 437 Garth Huber
* Alicia asymmetry update attachment:Asymmetry_Postuma_Updates.pdf
563
564
---
565 424 Richard Trotta
566
h3. Nov 16, 2022
567 435 Garth Huber
568 424 Richard Trotta
* Garth/Stephen Notes attachment:mtg_22nov16.txt
569 428 Richard Trotta
* Richard
570
** "8p2 LH2":https://redmine.jlab.org/attachments/1684 "8p2 C":https://redmine.jlab.org/attachments/1685
571 424 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
572
** 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.
573
** 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.
574 429 Richard Trotta
** I found a script for raster calibrations. The script is being fixed as it is currently a bit of a mess.
575 430 Stephen Kay
** https://redmine.jlab.org/projects/kltexp/wiki/Hall_C_Raster_Algorithm
576
* Stephen
577
** Updates to the hcana RFTime class
578
** Added in particle dependent corrections for e/pi/K/p for each spectrometer
579
*** Calculate beta for each particle type (from momentum, delta)
580
*** Determine path length from xptar and delta
581
*** Calculate ToF
582
*** Add this in modulo that determines RFtime
583
*** Tried method Shuo used initially, didn't really do anything
584 433 Stephen Kay
** Some further updates needed before it will be pushed to the hallc repo
585
** "Slides":https://redmine.jlab.org/attachments/1694 
586
** "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 
587 436 Garth Huber
** "RF correction simply the ToF added in the modulo fn, seems to work":https://redmine.jlab.org/attachments/1695
588
* Vijay (presented by GH)
589 424 Richard Trotta
** low Q2 attachment:CPULT_lowQ2.png attachment:TLT_lowQ2.png attachment:ELT_lowQ2.png
590
591
---
592 420 Vijay Kumar
593
h3. Nov 09, 2022
594 421 Garth Huber
595 422 Garth Huber
* Garth/Stephen Notes attachment:mtg_22nov09.txt
596 423 Garth Huber
* Bill (Wenliang) Li L/T-separation code tutorial.
597 420 Vijay Kumar
** Video recording is posted at: http://lichen.phys.uregina.ca/~huberg/kaon/LT_tutorial_20221109_1920x1080.mp4
598
* Vijay
599
** 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 
600
601
---
602 405 Vijay Kumar
603
h3. Nov 2, 2022
604 416 Garth Huber
605 405 Vijay Kumar
* Garth/Stephen notes attachment:mtg_22nov02.txt
606 406 Vijay Kumar
* Vijay
607 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.
608 419 Vijay Kumar
attachment:Vijay_REYIELD_2p7C.pdf 
609 411 Ali Usman
  
610
* Ali
611 412 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.
612 418 Jacob Murphy
attachment:KaonLT_Meeting_Nov_2.pdf
613
* Jacob
614
** 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.
615 413 Richard Trotta
attachment:HMS_Optimization_at_High_Momentum.pdf
616 427 Richard Trotta
* Richard
617 426 Richard Trotta
** "6p2 C":https://redmine.jlab.org/attachments/1658 "6p2 LH2":https://redmine.jlab.org/attachments/1659
618 413 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
619
** 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%.
620
** 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.
621
** 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.
622 405 Vijay Kumar
623 325 Garth Huber
 
624 346 Richard Trotta
----
625 403 Garth Huber
626
h3. Oct 26, 2022
627
628
* DaveG notes attachment:mtg_22oct26.txt
629
630
----
631 402 Garth Huber
632 1 Richard Trotta
h3. Oct 19, 2022
633 402 Garth Huber
634 401 Richard Trotta
* Garth/Stephen notes attachment:mtg_22oct19.txt
635
* Richard
636
** The trend in the SHMS track yields is still present in the positive polarity luminosity runs.
637
** Talk for the Hall C Quarterly meeting was discussed. 
638
639
----
640 400 Garth Huber
641
h3. Oct 12, 2022
642
643
* Garth/Stephen notes attachment:mtg_22oct12.txt
644
645
----
646 397 Richard Trotta
647
h3. Oct 4, 2022
648 399 Garth Huber
649 397 Richard Trotta
* Garth/Stephen notes attachment:mtg_22oct05.txt
650
* Richard
651
** attachment:KaonLTMeeting10_4_22.pdf
652
** 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.
653
*** It should be noted, there are huge discrepancies between BCM4A and BCM1 in some cases (like 20+ uA).
654
** Ran into some issues with the cross-section code. I am in debug mode trying to find the cause.
655
** 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.
656
657
----
658 393 Garth Huber
659
h3. Sept 28, 2022
660 394 Garth Huber
661
* Garth/Stephen notes attachment:mtg_22sep28.txt
662 396 Jacob Murphy
* Jacob
663 394 Garth Huber
** HMS optics fitting - attachment:HMS_Optics_Calibrations_Update.pdf
664 393 Garth Huber
665
----
666 382 Garth Huber
667
h3. Sept 21, 2022
668 392 Garth Huber
669 389 Richard Trotta
* Garth/Stephen notes attachment:mtg_22sep21.txt
670
* Richard
671
** attachment:Yield_6p2cl1.pdf attachment:Yield_10p6cl2.pdf attachment:Yield_10p6cl1.pdf
672 390 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.
673
** 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.
674
* Ali
675 391 Ali Usman
** attachment:Ali_Sep21_Analysis.pdf
676 389 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.
677 382 Garth Huber
678
----
679 379 Garth Huber
680
h3. Sept 8, 2022
681 382 Garth Huber
682 383 Ali Usman
* Garth/Stephen Notes attachment:mtg_22sep08.txt
683
* Ali
684 386 Ali Usman
** attachment:Sep8_Analysis.pdf
685 384 Ali Usman
** Heep Coin Analysis update. Fixed the issue with emiss and pmiss. Includes number of debug tests.
686 387 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
687 380 Richard Trotta
** Full analysis files are the latest data/simc comparison for different beam energies (No offsets applied yet) 
688
* Richard
689 381 Richard Trotta
** attachment:KaonLTMeeting9_8_22.pdf
690 380 Richard Trotta
** attachment:Yield_6p2_l1_all.pdf attachment:Yield_10p6_l1_all.pdf attachment:Yield_10p6_l2_all.pdf
691
** Improved total uncertainties
692
** In-depth with tracking cut analysis underway
693
** Poor TLT consistent with poor CPULTs
694 379 Garth Huber
695
----
696 371 Garth Huber
697
h3. Aug 31, 2022
698 379 Garth Huber
699 378 Richard Trotta
* Garth/Stephen Notes attachment:mtg_22aug31.txt
700
* Richard
701
** attachment:KaonLTMeeting8_31_22.pdf
702
** 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.
703
** Uncertainties for the luminosities and heep are next up.
704 371 Garth Huber
705
----
706 374 Garth Huber
707 1 Richard Trotta
h3. Aug 26, 2022
708 375 Garth Huber
709 374 Garth Huber
* Meeting on L/T-separation procedure
710
** Garth's slides attachment:LT_sep_iterations.pdf
711 377 Garth Huber
** Bill's tutorial (Nov 2018) attachment:Kaon_LT_tutorial_18nov28.pdf
712 395 Garth Huber
** Stephen's notes attachment:LTsep_mtg_22aug26.txt
713 373 Garth Huber
** Recording of Sept 27 repeat at: http://lichen.phys.uregina.ca/~huberg/kaon/LT_tutorial_20220927_1920x1080.mp4
714
715 372 Garth Huber
----
716 366 Garth Huber
717 368 Vijay Kumar
h3. Aug 17, 2022
718 371 Garth Huber
719 367 Vijay Kumar
* Garth/Stephen Notes attachment:mtg_22aug17.txt
720 369 Vijay Kumar
* Vijay
721 367 Vijay Kumar
** The summary of the Heepcheck study is attached here. attachment:Vijay_Aug17_2022.pdf 
722 370 Richard Trotta
** 3.6 and 3.9 GeV data do NOT have the angle offsets. This has been established in the study.
723
** I've plotted the offsets vs SHMS central momentum. Plots are attached in the attached pdf file.
724
* Richard
725
** The 10.6 GeV heep analysis is going well but the broad momentum distributions are making offsets difficult at times.
726
** 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. 
727
** 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.
728
** attachment:FullAnalysis_Offset_10p6.pdf
729 367 Vijay Kumar
** attachment:HcanavSimc_scatter_calc.pdf
730 366 Garth Huber
 
731
732
---
733 354 Garth Huber
734
h3. Aug 4, 2022
735 365 Garth Huber
736 363 Vijay Kumar
* Garth/Stephen Notes attachment:mtg_22aug04.txt
737
* Vijay
738 362 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  
739
* Richard
740
** attachment:KaonLTMeeting_8_4_22.pdf
741
** HeeP coin for 10p6 setting is looking pretty good. I still need to make some minor adjustments.
742
** TLT for Lumi is looking much better. The yields also are looking better but cut adjustments need to be made.
743
** HeeP singles have some odd issues that need to be resolved before offset analysis can begin.
744 355 Garth Huber
** Hodoscope calibrations are all done except 6p2.
745 354 Garth Huber
746
---
747 350 Richard Trotta
748
h3. July 14, 2022
749 353 Garth Huber
750 350 Richard Trotta
* Garth/Stephen Notes attachment:mtg_22jul14.txt
751
* Richard
752
** attachment:KaonLTMeeting7_14_22.pdf
753 1 Richard Trotta
** The W peaks for SIMC and data are very far offset from one another. This is being investigated.
754 350 Richard Trotta
* Vijay
755 349 Garth Huber
** Heep Data MC comparo w/o offsets attachment:Heep_coin_no_offsets_vijay_22jul08.pdf
756
757
----
758 344 Richard Trotta
759
h3. June 28, 2022
760 349 Garth Huber
761 344 Richard Trotta
* Garth/Stephen Notes attachment:mtg_22jun28.txt
762
* Richard
763
** Aerogel XY plots vs NPE to check out the tray location and efficiencies.
764
** Hodoscope and calorimeter scripts working. Hodoscope calibration looks good for 10p6 but needs improvement for other beam energies.
765 1 Richard Trotta
** HGCer efficiency and plots added to efficiency script. Need to discuss with Vijay on specifics of cuts and efficiencies.
766 348 Jacob Murphy
** Started looking in detail at Bill's code. Some scripts and links are missing/broken.
767
* Jacob
768
** EDTM Study Report completed, with newer versions of the TLT equations attachment:EDTM_Study_Report.pdf
769 347 Richard Trotta
** Graphical Guide for Event Types created to accompany the report, illustrating prescaling with EDTM attachment:Graphical_Guide_Evt_Type.pdf
770 344 Richard Trotta
** Plan to update report file template with new equations and errors soon
771
772 282 Vijay Kumar
----
773 338 Garth Huber
774
h3. June 14, 2022
775 343 Garth Huber
776 342 Richard Trotta
* Garth's Notes attachment:efficiencies_22jun13.txt
777
* Richard
778
** Fixed issues with simc script and 10p6 Heepcoin data. Issue with data was an offset of 40ns that was corrected halfway through runs.
779
** Aerogel XY plots vs NPE to check out the tray location and efficiencies.
780
** Efficiency plots for all production runs.
781 338 Garth Huber
** attachment:KaonLTMeeting6_14_22.pdf
782
783
----
784 1 Richard Trotta
785 330 Garth Huber
h3. May 31, 2022
786
787 340 Garth Huber
* Garth and Stephen's Notes attachment:mtg_22may31.txt attachment:efficiencies_22jun02.txt
788 332 Vijay Kumar
* Vijay 
789 334 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 .
790 355 Garth Huber
* Ali
791 332 Vijay Kumar
** First look at the HEEP COIN Data/SIMC comparison for the 8.2 GeV Kaon-LT data attachment:KaonLT_May31.pdf
792 314 Garth Huber
793
----
794
795
h3. May 17, 2022
796 325 Garth Huber
797 331 Garth Huber
798 318 Richard Trotta
* Garth and Stephen's Notes attachment:mtg_22may17.txt attachment:efficiencies_22may25.txt
799
* Richard
800
** Updated heep coin scripts for the farm. Ali is testing them and should be able to get plots soon.
801
** There was a small typo in the simc input file that dramatically changed the shape of the plots. attachment:KaonLTMeeting5_17_22.pdf
802 316 Vijay Kumar
** Updated version of efficiency columns for the script that will grab efficiencies and various other values. attachment:efficiency_output_list.docx
803
* Vijay 
804 317 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 .
805 314 Garth Huber
806
----
807 299 Garth Huber
808 303 Vijay Kumar
h3. May 3, 2022
809 315 Garth Huber
810 308 Ali Usman
* Garth and Stephen's Notes attachment:mtg_22may03.odt  attachment:efficiencies_22may03.odt
811
* Ali
812
** Fixed all the settings for high Q2 KaonLT data. Also slide on accessing spectrometer angles from CODA
813 309 Richard Trotta
** attachment:KaonLT_May_3.pdf
814 312 Richard Trotta
* Richard
815 302 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
816 304 Vijay Kumar
* Vijay 
817 305 Vijay Kumar
** The SIMC simulation study of the PinoLT data at Q2 = 0.38 and 0.42 GeV2 has completed (preliminary) for all settings.
818 299 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 .
819 300 Garth Huber
820
----
821 296 Vijay Kumar
822 299 Garth Huber
h3. April 19, 2022
823
824 1 Richard Trotta
* Garth's Notes attachment:mtg_22apr19.txt
825 296 Vijay Kumar
* Vijay 
826 298 Vijay Kumar
** SIMC simulation updates at Q2 = 2.7, 3.6 and 4.5 GeV2. attachment:Vijay_KaonLT_Meeting_Apr19_2022.pdf  
827 296 Vijay Kumar
828
----
829
830 306 Vijay Kumar
h3. April 06, 2022
831 355 Garth Huber
832 306 Vijay Kumar
* Garth's Notes attachment:mtg_22apr06.txt
833 293 Garth Huber
* Ali 
834 290 Richard Trotta
**  attachment:Analysis_Update_Apr_6.pdf 
835
* Richard 
836 288 Richard Trotta
** attachment:KaonLTMeeting4_6_22.pdf
837
** The analysis of the 10.6 GeV heep coin/singles settings are still ongoing. 
838
** There were some issues getting the replays working for the singles runs and the analysis. Things finally were sorted out yesterday (and this morning).
839 291 Richard Trotta
** The SHMS heep singles are presented. Overall, they look fine. There are still some things to sort out.
840 282 Vijay Kumar
** The HMS heep singles are still running.
841 306 Vijay Kumar
* Vijay 
842 288 Richard Trotta
** The simulation study of the 4.9 GeV KaonLT data has completed.
843 295 Garth Huber
** This energy has left, center and right settings data. All these settings look fine. 
844 284 Vijay Kumar
** See the pdf for more info. attachment:Vijay_KaonLT_Meeting_Apri_06_2022.pdf  
845 1 Richard Trotta
846 284 Vijay Kumar
----
847 281 Richard Trotta
848 1 Richard Trotta
h3. March 23, 2022
849 281 Richard Trotta
850 1 Richard Trotta
* Garth's Notes attachment:mtg_22mar23.txt
851 278 Richard Trotta
* Richard 
852
** 10.6 GeV heep coin was analyzed. Things look pretty good so far, still some work to be done. attachment:KaonLTMeeting3_23_22.pdf
853 280 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.
854
* Nathan
855 278 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.
856
** after changing back to 1 discrepancy resolved. Slides: attachment:Mode10Update_2022Mar23.pdf
857
858
---
859
860
h3. March 9, 2022
861
862 355 Garth Huber
* Garth's Notes attachment:mtg_22mar09.txt
863 267 Richard Trotta
* Regina March 4 meeting on pion leak through in (e,e'K+) analysis attachment:grp_22mar04.txt
864
* Richard 
865
** Vijay's scripts are working and Richard reproduced some of his previous plots. attachment:KaonLTMeeting3_9_22.pdf
866 1 Richard Trotta
** The next step is to do a full analysis of the 10.6 GeV heep coin/singles data.
867 277 Garth Huber
* Nathan
868
** Update on the current state of mode 10: attachment:Mode10Update_2022Mar9.pdf 
869 269 Richard Trotta
** See Mark Jones' slide on changes to hcana: https://redmine.jlab.org/attachments/1424
870 261 Garth Huber
871
---
872 271 Garth Huber
873 273 Garth Huber
h3. February 23, 2022
874 271 Garth Huber
875
* Garth's Notes attachment:mtg_22feb23.txt
876 272 Garth Huber
877
---
878 244 Vijay Kumar
879
h3. January 26, 2022  
880 271 Garth Huber
881 253 Vijay Kumar
* Garth's Notes attachment:mtg_22jan26.txt
882 251 Vijay Kumar
* Vijay, Heep updates from the PionLT experiment. attachment:Analysis_Updates_Jan26_2022.pdf 
883 252 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   
884 246 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
885 250 Vijay Kumar
** The 3.6 and 4.5 GeV data do not have elastic data.
886 254 Nathan Heinrich
** Coin: 2.7, 3.6 and 4.5 GeV. attachment:Analysed_2p7.pdf attachment:Analysed_3p6.pdf attachment:Analysed_4p5.pdf   
887 255 Nathan Heinrich
* Nathan, Short update on the Mode 10
888 256 Jacob Murphy
** Short update. May need to update hcana to change software voltage threshold. attachment:2022-01-26NathanHeinrich.pdf
889 260 Jacob Murphy
* Jacob, EDTM Study 2
890 255 Nathan Heinrich
** EDTM study with beam, taken during LUMI Scan 3
891 248 Vijay Kumar
** Early look at 3rd EDTM Study
892 113 Richard Trotta
** Additional notes on increased deadtime in SHMS at High Current. attachment:PionLT_EDTM_Study2_Analysis.pdf
893 222 Richard Trotta
894 200 Richard Trotta
----
895 236 Garth Huber
896
h3. January 12, 2022  
897
898
* Garth's Notes attachment:mtg_22jan12.txt
899
* Junaid
900 240 Vijay Kumar
** PID study
901 238 Vijay Kumar
* Vijay
902 236 Garth Huber
** Heep-singles study attachment:Analysis_Updates1_Jan12.pdf 
903
* Nathan
904
** Mode-10 data variables
905 243 Richard Trotta
906
----
907 234 Garth Huber
908
h3. January 5, 2022  
909 235 Garth Huber
910 221 Richard Trotta
* Garth's Notes attachment:mtg_22jan05.txt
911
* Stephen
912
** Stephen was updating GitHub but UTIL_BATCH has some permissions issues
913
* Richard
914
** Update to KLT task schedule
915
** Meeting between Richard and Vijay to discuss task breakdown Friday, January 7th at 11 am EST
916 223 Richard Trotta
** EDTM study 2 will done sometime this weekend
917
* Vijay
918 224 Richard Trotta
** Breakdown of HEEP single analysis for low Q2 data
919
*** Shapes of SIMC and data are very off
920 231 Vijay Kumar
*** It seems to be a systematic issue on Vijay's part because the same issue is being seen in PLT data
921 229 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.  
922 228 Vijay Kumar
** https://redmine.jlab.org/attachments/1376
923 225 Nathan Heinrich
** https://redmine.jlab.org/attachments/1375
924
* Nathan
925
** Update on fADC mode 10 studies and the fADC deadtime studies
926 226 Jacob Murphy
** https://redmine.jlab.org/attachments/1372
927
* Jacob
928 227 Jacob Murphy
** Summary of EDTM analysis so far in the PionLT experiment
929 242 Richard Trotta
** https://redmine.jlab.org/attachments/1373
930 221 Richard Trotta
931
----
932
933
h2. 2021 Meetings
934 220 Richard Trotta
935
h3. August 4, 2021
936
937
* Richard
938
** 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).
939
** Issues with the COIN are seen but may be a replay issue.
940
941
----
942 217 Richard Trotta
943
h3. July 21, 2021
944 218 Richard Trotta
945 217 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1250/KaonLTMeeting7_14_21.pdf
946
** 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.
947
948
----
949 215 Richard Trotta
950
h3. May 12, 2021
951
952
* Richard
953
** 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.
954
955
----
956 213 Richard Trotta
957
h3. April 28, 2021
958
959 214 Richard Trotta
* Richard
960 213 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.
961
962
----
963 211 Richard Trotta
964 212 Richard Trotta
h3. April 14, 2021
965 211 Richard Trotta
966
* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_4_14_21.pdf
967
** 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). 
968
** Some PionLT carbon runs were looked at but there are still some issues (either cut or pathing related).
969
970
----
971 203 Richard Trotta
972
h3. March 31, 2021
973 206 Richard Trotta
974 209 Richard Trotta
* Richard
975
** Luminosity studies
976
*** PionLT carbon runs
977
**** Still having issues getting decent results. I think I am just missing a definition somewhere that I need to track down
978
*** Uncertainties
979
**** Easy to do, I just need to put it into my script
980
** Explicit PS calculations
981
*** I have gotten a rough script working for very simple runs (ie low rate, single spectrometer, calibration runs)
982
*** I am trying to expand to lumi singles runs, things get a bit more complex so I am just working out the trigger correlations
983
** Pass 2 runs
984
*** DEF-files
985
**** I checked out the DEF-files for our combination of the nested files
986
**** There are a lot a files (~150!!!!) and may be hard to track so next week *we should make a flowchart together*
987
**** Working on my list of branches for the next replay
988
***** Mainly just working on my list of branches for the explicit PS calculations
989 210 Stephen Kay
***** *Everyone should have a list of these branches by next mini-meeting (4/7/21)*
990
* Stephen
991
** Updated DEF-File for the "full" replay
992
*** Can't remove NData brances, Mark says they won't take up too many resources anyway
993
*** Removed individual PMT info and raw info for many detectors, reduced file size by factor ~2
994
** Updating DEF-files/scripts for calibrations as part of PionLT prep
995
** Will focus on DEF-file/DEF-cut file updates over next week
996 207 Richard Trotta
*** Will investigate HeeP replays over rest of this week.
997 203 Richard Trotta
998
----
999 201 Stephen Kay
1000
h3. March 24, 2021
1001
1002
* KaonLT Mini Meeting focusing on Pass2 preparation
1003
* "Task summary from Richard":https://redmine.jlab.org/projects/kltexp/wiki/Replay_2_Tasks
1004
1005
----
1006 200 Richard Trotta
1007
h3. March 17, 2021
1008
1009 1 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_3_17_21.pdf
1010 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.
1011 201 Stephen Kay
* Mini meeting March 24th @ 4:30 EDT
1012 200 Richard Trotta
1013 194 Richard Trotta
----
1014 199 Richard Trotta
1015
h3. March 3, 2021
1016
1017
* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_3_3_21.pdf
1018
** 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). 
1019
** 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.
1020
1021
----
1022
1023 196 Richard Trotta
1024 194 Richard Trotta
h3. February 17, 2021
1025
1026
* Richard
1027 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.
1028
* Nathan
1029
** Presented an update on the Hodoscope Calibrations: https://redmine.jlab.org/attachments/download/1196/HodoscopeUpdate_2021Feb17.pdf
1030 194 Richard Trotta
1031
----
1032 196 Richard Trotta
1033 193 Richard Trotta
h3. February 3, 2021
1034
1035
* Richard
1036
** A table with the aerogel efficiency for kaons is being created. It will be expanded to other particles and detectors.
1037
1038
----
1039 196 Richard Trotta
1040 191 Richard Trotta
h3. January 20, 2021
1041
1042
* "Richard":https://redmine.jlab.org/attachments/download/1172/KaonLTMeeting_1_20_21.pdf
1043
** 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.
1044
1045
----
1046 196 Richard Trotta
1047 190 Richard Trotta
h3. January 6, 2021
1048
1049 322 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1153/KaonLTMeeting1_6_21.pdf
1050 186 Richard Trotta
** Analyzed most of the luminosity scans. There are a few issues I am investigating still which seem to be run related. 
1051
1052
----
1053
1054
h2. 2020 Meetings
1055 185 Richard Trotta
1056
h3. December 2, 2020
1057
 
1058
* Ali and Richard
1059
** 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.
1060
1061
----
1062 180 Richard Trotta
1063
h3. November 18, 2020
1064 183 Richard Trotta
1065 181 Richard Trotta
* "Carlos":https://redmine.jlab.org/attachments/download/1103/LiveTime_Study_cyero.pdf
1066 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.
1067
* "Richard":https://redmine.jlab.org/attachments/download/1101/KaonLTMeeting11_18_20.pdf
1068
** Scaler analysis matches Carlos' code now. Overall significant improvements were made through some cut adjustments and incorrect variable definitions.
1069 182 Richard Trotta
* Stephen
1070 180 Richard Trotta
** Updated the hallc_replay_lt with parameter files for all coin peaks.
1071
1072
----
1073 178 Richard Trotta
1074 321 Richard Trotta
h3. November 4, 2020
1075 178 Richard Trotta
 
1076 321 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1092/KaonLTMeeting11_4_20.pdf
1077 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. 
1078 141 Stephen Kay
1079
----
1080 170 Richard Trotta
1081
h3. October 28, 2020
1082
1083 177 Richard Trotta
* Ali
1084 172 Richard Trotta
** Went over some of his tracking procedures for the report file implementation
1085 173 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1091/KaonLTMeeting10_28_20.pdf
1086 171 Stephen Kay
** Luminosity analysis continues. There are still some issues but things have improved a bit.
1087
* "Stephen":https://redmine.jlab.org/attachments/download/1090/KaonLT_Meeting_28_10_20.pdf
1088 174 Richard Trotta
** Discussion of CT peak analysis, progress and outline of what's left to do with this
1089 176 Richard Trotta
* Vijay
1090 170 Richard Trotta
** Dry run for Mark's hallc meeting tomorrow (10/29)
1091
1092
----
1093 164 Richard Trotta
1094
h3. October 14, 2020
1095 168 Richard Trotta
1096 164 Richard Trotta
* Ali
1097
** Working through the REPORT_FILES template to get everything working and outputting proper information.
1098
* "Richard":https://redmine.jlab.org/attachments/download/1085/KaonLTMeeting_10_14_20.pdf
1099 167 Richard Trotta
** Updates on lumi scans. There are many issues from Scalers to Tracking that need to be resolved.
1100 164 Richard Trotta
* Stephen
1101 1 Richard Trotta
** He has included a demo for using the python analysis script in the README.
1102 164 Richard Trotta
1103
----
1104 161 Richard Trotta
1105
h3. September 23, 2020
1106
1107
* "Richard":https://redmine.jlab.org/attachments/download/1078/KaonLTMeeting_9_23_20.pdf
1108
** 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. 
1109 162 Richard Trotta
* Stephen
1110
** 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.
1111
* Petr
1112 161 Richard Trotta
** Data fitting algorithm based on E.H. Bellamy paper. Extracts PMT spectra from ROOT file and makes a 1D projection histogram.
1113
1114
----
1115 149 Richard Trotta
1116 156 Richard Trotta
h3. September 9, 2020
1117
1118 157 Richard Trotta
* Richard
1119 156 Richard Trotta
** Still working on run list, GUI checks
1120
* "Stephen":https://redmine.jlab.org/issues/567
1121
** New slim replay scripts and full replay scripts updated
1122
* Ali
1123
** Him and Stephen found an issue (already aware of) with zeros in the parameter files using Mark's hcana changes
1124 158 Richard Trotta
** Need to be vigilant of crashed replays because this is probably the issue
1125 156 Richard Trotta
* Vijay
1126 1 Richard Trotta
** Nearly finished with HGcer calibrations
1127 156 Richard Trotta
1128
----
1129
1130
h3. August 26, 2020
1131 149 Richard Trotta
1132 154 Richard Trotta
*Links to talks->* "Ali":https://redmine.jlab.org/issues/483 "Vijay":https://redmine.jlab.org/issues/479
1133
1134
* Richard
1135
** 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.
1136
* Stephen
1137
** Updated on RF times. There were a few issues with some runs, but overall most are finished.
1138
* Ali
1139
** 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)
1140 150 Richard Trotta
* Vijay
1141 1 Richard Trotta
** Updated the SHMS HGCher analysis. The calibrations are coming along, but a little more work needs to be finished up.
1142 149 Richard Trotta
1143
----
1144 144 Richard Trotta
1145 147 Stephen Kay
h3. July 29, 2020
1146 148 Richard Trotta
1147 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
1148 155 Richard Trotta
1149
* Stephen
1150
** Updates on scripts to set pedestal defaults and AdcTdc offsets after hcana change
1151
* Richard
1152 1 Richard Trotta
** Updated plan and schedule for the analysis going forward
1153 144 Richard Trotta
1154
----
1155 139 Richard Trotta
1156 1 Richard Trotta
h3. July 8, 2020
1157 139 Richard Trotta
1158 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
1159 139 Richard Trotta
1160
----
1161 132 Richard Trotta
1162
h3. June 24, 2020
1163 143 Richard Trotta
1164 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
1165
1166
----
1167 129 Richard Trotta
1168
h3. June 9, 2020
1169 135 Richard Trotta
1170 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
1171
1172
----
1173 125 Richard Trotta
1174
h3. May 27, 2020
1175 126 Richard Trotta
1176 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
1177 125 Richard Trotta
1178
----
1179 118 Stephen Kay
1180 124 Richard Trotta
h3. May 13, 2020
1181 138 Stephen Kay
1182 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
1183 121 Richard Trotta
1184
----
1185 111 Richard Trotta
1186
h3. April 29, 2020
1187 138 Stephen Kay
1188 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
1189 1 Richard Trotta
1190 106 Richard Trotta
----
1191 111 Richard Trotta
1192 104 Richard Trotta
h3. April 15, 2020
1193 102 Richard Trotta
1194 105 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/attachments/download/977/KaonLTMeeting_4_15_20.pdf
1195 102 Richard Trotta
1196 95 Stephen Kay
----
1197 111 Richard Trotta
1198 100 Stephen Kay
h3. April 1, 2020
1199 138 Stephen Kay
1200 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
1201 41 Stephen Kay
1202 93 Richard Trotta
----
1203 111 Richard Trotta
1204 93 Richard Trotta
h3. March 18, 2020
1205
1206 1 Richard Trotta
*Links to talks->* "Richard's EIC Temple Draft 2":https://redmine.jlab.org/attachments/download/942/DRAFT2_mesonSF_EIC_Temple.pdf
1207 93 Richard Trotta
1208 91 Richard Trotta
----
1209 111 Richard Trotta
1210 92 Richard Trotta
h3. March 11, 2020
1211 1 Richard Trotta
1212 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
1213 91 Richard Trotta
1214 88 Richard Trotta
----
1215 111 Richard Trotta
1216 90 Richard Trotta
h3. Feb 26, 2020
1217
1218
* Peter's changes to hcana should be coming soon. Richard will check with Mark when he is down there for an update.
1219 1 Richard Trotta
* Need to incorporate the latest "BCM updates":https://hallcweb.jlab.org/doc-public/ShowDocument?docid=1034 from Dave Mack.
1220 88 Richard Trotta
* Richard should look at the luminosity scalar analysis before and after the BCM changes once he gets his script working again.
1221 1 Richard Trotta
**  He is checking with Mark about this while he is down in jlab. 
1222
1223 86 Richard Trotta
----
1224 111 Richard Trotta
1225 87 Richard Trotta
h3. Feb 10, 2020 
1226 86 Richard Trotta
1227 1 Richard Trotta
----
1228 111 Richard Trotta
1229 83 Richard Trotta
h3. Jan 22, 2020
1230
1231 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
1232 1 Richard Trotta
1233 83 Richard Trotta
----
1234 111 Richard Trotta
1235 81 Richard Trotta
h3. Jan 15,2020
1236 82 Richard Trotta
1237 81 Richard Trotta
*Links to talks->* "Richard's Hall C Winter Talk Outline":https://redmine.jlab.org/attachments/download/936/KaonLTHallC_WinterTalk2020.pdf
1238
1239 78 Richard Trotta
----
1240 111 Richard Trotta
1241 78 Richard Trotta
h3. Jan 8,2020
1242 1 Richard Trotta
1243 79 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/76
1244 1 Richard Trotta
1245
* Richard
1246
** PID efficiency script is coming together
1247
*** Tighter cuts and cuts on timing, beta, etc. will be needed for cleaner electron cuts
1248
*** 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.
1249 80 Richard Trotta
1250 113 Richard Trotta
----
1251 112 Richard Trotta
1252 80 Richard Trotta
h2. 2019 Meetings
1253 141 Stephen Kay
1254
----
1255 111 Richard Trotta
1256
h3. Dec 17,2019
1257 77 Richard Trotta
1258
Reminder: Mark Jones' commissioning analysis meetings are bi-weekly and announced by Mark
1259
1260
* Stephen
1261
** Number of passes finished for HMS calorimeter
1262
*** Still wiggles in all passes
1263
** Finished his report on calibrations, "DC and Calorimeters":https://redmine.jlab.org/documents/74
1264
** 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
1265 1 Richard Trotta
*** CUA will be putting together a similar list
1266 77 Richard Trotta
1267
* Richard
1268
** Fixed one error issue with SHMS calorimeter calibration code (discussed Dec 10th meeting), but still have one error
1269
** PID efficiency script plots are complete, but still some questions he needs to work out before a final version
1270
*** Eventually need to include tracking into PID efficiencies
1271
** Pete brought up the question for a number of multi-hits we are getting
1272
*** (Dead Time)+(Trigger efficiency)-EDTM
1273
1274 72 Richard Trotta
----
1275 111 Richard Trotta
1276 72 Richard Trotta
h3. Dec 10,2019
1277 74 Richard Trotta
1278
*Links to talks->* "Richard":https://redmine.jlab.org/documents/73
1279
1280
* Garth and Stephen were in the most recent SIDIS meeting
1281
** Wit had lots of hcana changes but they seem to be critical to our work 
1282 1 Richard Trotta
*** Changes such as new detector classes
1283
** Hopefully Wit will present these in the next commissioning meeting
1284 77 Richard Trotta
1285 74 Richard Trotta
* Stephen improved wiggles but still prevalent
1286
1287
* Richard finished HGCer calibrations, he concluded that the online parameters are sufficient
1288
** He also has been looking at SHMS calorimeter calibrations but has had issues running the scripts. Most likely a pathing issue.
1289
** The "tasks":https://redmine.jlab.org/projects/kltexp/wiki/Analysis_Tasks page has been updated with a section for efficiencies. 
1290
*** A PID efficiency script is currently being developed and hopefully should have some plots for our next meeting.
1291 75 Richard Trotta
1292 74 Richard Trotta
----
1293 111 Richard Trotta
1294 71 Richard Trotta
h3. Nov 26,2019
1295
1296
*Links to talks->* "Richard":https://redmine.jlab.org/issues/480
1297
1298
* Stephen
1299
** DC SHMS, small-angle has poor performance
1300
*** Tighter cuts or PID (currently only looks for electrons)
1301
** Vardan said calorimeter wiggles are an ongoing issue with no current solution
1302
1303 1 Richard Trotta
* Richard
1304 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.
1305
*** Richard will pick up looking at the HGCer calibrations from Vijay's scripts. 
1306
*** Richard will also be looking at the SHMS calorimeter and with the suggestion of getting some negatively polarized SHMS runs from Hem.
1307
** The HMS Cherenkov is finished with the conclusion that the calibrations from the online runs are good
1308
** We can begin looking forward towards efficiencies. 
1309
*** Garth suggested that looking at PID may be an advantageous first steps. Precise definitions of these PIDs will need to be logged.
1310
*** Clear notes on efficiencies steps will be needed. They will need to be redefined multiple times in multiple ways. 
1311
1312
* Hem
1313 70 Richard Trotta
** Has been looking at the calorimeter as well. 
1314
** 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.  
1315
1316
----
1317 111 Richard Trotta
1318 1 Richard Trotta
h3. Nov 19,2019
1319 70 Richard Trotta
1320
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
1321
1322
* Richard
1323
** Finished up TDC cut paper going through the procedure (found "here":https://redmine.jlab.org/issues/500)
1324
** Needed to add Carlos pre-trigger designs to an appendix for the paper which clarifies the introduction section
1325
1326
* Stephen
1327
** Issues with DC calibration for only a few runs during each run period
1328
** "wiggles" in HMS calorimeter calibrations for some runs
1329
*** few runs where HMS cal totally failed (which was dependent on initial parameters)
1330
*** Spring looked worse than the rest (surprisingly), but this may be because online calibration wasn't great
1331 2 Richard Trotta
1332 68 Richard Trotta
----
1333 111 Richard Trotta
1334 68 Richard Trotta
h3. Nov 5,2019
1335
1336
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500
1337
1338
* Timing update (Stephen)
1339
** Reference times between Richard and Stephen are very similar and the GitHub is updated accordingly
1340
** Richard is going to add the trigger time cuts once the fall runs are finished (by end of week)
1341 1 Richard Trotta
** First pass of detector reference time parameter files finished
1342 68 Richard Trotta
1343
* Peter's hcana code (Richard and Stephen)
1344
** 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
1345
*** Richard has emailed Peter about the issue with no response yet (follow-up soon)
1346
** 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.
1347
1348
* Calibrations were decided to be done once per shift
1349
1350 127 Richard Trotta
* Next meeting schedule...
1351
** Small meetings Nov 12 and Nov 19 (at 3pm EST) so Richard and Stephen can iron out the timing and calibrations
1352 68 Richard Trotta
** November 26 (at 3pm EST) will be a larger meeting. 
1353
*** This is the rough deadline we made for finishing up calibrations. 
1354
*** 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!!
1355
1356
----
1357 111 Richard Trotta
1358 62 Richard Trotta
h3. Oct 22,2019
1359 64 Richard Trotta
1360 62 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
1361 65 Richard Trotta
1362
* SHMS Reference Time Amplitude Cuts(Stephen)
1363
** Extra peaks in HG from cross-talk and "ghost-bands" due to ADC screw up
1364
*** cuts applied on SHMS ADC ref time amplitude (greater than zero) done before any further event selection and histogram filling
1365
** This is a temporary fix to "ghost-bands" and cross talk
1366
*** Although for HG there is still a small peak. The hodoscope is fine.
1367
** The time window is easier to set now.
1368
** DC has been fine (since it uses TDC)
1369
*** DC calibrations should be good to complete, other detectors need more fixes (i.e. the remaining "ghost-band")
1370
** Hodoscope still bad but this might be because of that "ghost-band", needs to be further investigated
1371 1 Richard Trotta
1372 67 Richard Trotta
* Peter's hcana fixes for reference time (Richard)
1373
** Peter implemented changes to hcana
1374 1 Richard Trotta
** Two major issues...
1375 67 Richard Trotta
## Amplitude goes to null and integral is low or negative which causes a rate-dependent efficiency. 
1376 1 Richard Trotta
*** Peter has used the average pulse value acquired over a large sample of runs for each detector. 
1377 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)
1378
*** Peter created a routine to find the best offset by means of matching TDC and ADC
1379
** Richard has been checking for bugs in the code. 
1380
*** It seems to be ready to implement, Richard emailed Peter for confirmation on the implementation in our group directory
1381 1 Richard Trotta
1382 67 Richard Trotta
* Calibration of HMS detectors when the timing is agreed upon by Stephen and Richard.
1383 65 Richard Trotta
** Besides hodoscope which still has an issue with the script
1384 62 Richard Trotta
** Stephen and Richard are having a meeting late next week to determine time window values
1385
*** These will be relatively final, but on the wider side if adjustments need to be made in the future
1386 1 Richard Trotta
1387 61 Richard Trotta
-----
1388 111 Richard Trotta
1389 61 Richard Trotta
h3. Sep 24,2019
1390
1391 1 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
1392 61 Richard Trotta
1393 1 Richard Trotta
-----
1394 111 Richard Trotta
1395 59 Vijay Kumar
h3. Sep 10,2019
1396
1397 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
1398
1399 55 Stephen Kay
-----
1400 111 Richard Trotta
1401 55 Stephen Kay
h3. August 26, 2019
1402
1403 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
1404 54 Richard Trotta
1405
----
1406 111 Richard Trotta
1407 54 Richard Trotta
h3. June 21, 2019
1408 1 Richard Trotta
1409 54 Richard Trotta
*Links to talks->* "Hallc Talk Outline":https://redmine.jlab.org/documents/60 
1410 42 Stephen Kay
1411
----
1412 111 Richard Trotta
1413 1 Richard Trotta
h3. June 14, 2019
1414 46 Richard Trotta
1415 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
1416
1417 35 Stephen Kay
1418 1 Richard Trotta
----
1419 111 Richard Trotta
1420 36 Vijay Kumar
h3. June 4, 2019
1421 1 Richard Trotta
1422 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
1423 1 Richard Trotta
1424 35 Stephen Kay
1425 1 Richard Trotta
----
1426 111 Richard Trotta
1427 1 Richard Trotta
h3. May 21, 2019
1428
1429 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
1430
1431 1 Richard Trotta
----
1432 111 Richard Trotta
1433 1 Richard Trotta
h3. May 14, 2019
1434 35 Stephen Kay
1435 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
1436 35 Stephen Kay
1437 1 Richard Trotta
----
1438 111 Richard Trotta
1439 1 Richard Trotta
h3. April 30, 2019
1440
1441 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
1442 1 Richard Trotta
1443
----
1444
1445
h3. February 4, 2019
1446
1447
*Links to talks->* "Richard":https://redmine.jlab.org/documents/43 "Stephen":https://redmine.jlab.org/documents/44
1448
1449 113 Richard Trotta
----
1450 112 Richard Trotta
1451 141 Stephen Kay
h2. 2018 Meetings
1452
1453 111 Richard Trotta
----
1454
1455
h3. August 21, 2018
1456 1 Richard Trotta
1457 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
1458 1 Richard Trotta
1459 35 Stephen Kay
----
1460 111 Richard Trotta
1461 35 Stephen Kay
h3. August 8, 2018
1462
1463 1 Richard Trotta
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
1464
1465 35 Stephen Kay
----
1466 111 Richard Trotta
1467 1 Richard Trotta
h3. August 3, 2018
1468 35 Stephen Kay
1469
*Ongoing Tasks->* #381 #382 #383
1470 1 Richard Trotta
*Links to talks->*
1471 35 Stephen Kay
1472 1 Richard Trotta
----
1473 111 Richard Trotta
1474 1 Richard Trotta
h3. July 11, 2018
1475 35 Stephen Kay
1476 1 Richard Trotta
*Ongoing Tasks->* #381 #382 #383 #384
1477 35 Stephen Kay
1478 1 Richard Trotta
*Action items:*
1479 35 Stephen Kay
1480
* Update run plan, e.g. add prescales (Garth)
1481
* Check on details of: magnet cycling procedure, minimum angles, MCC fringe field steering, beam energy measurements, optics checks (Tanja)
1482
* Identify additional run coordinators (Tanja)
1483
* Encourage collaborators to take shifts, e.g. FIU (Pete)
1484
* Draft email about shifts etc. to collaboration (Tanja)
1485
* Develop diagnostic scripts and kaonLT specific (Richard, Ryan)
1486 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)
1487 35 Stephen Kay
1488
*Discussions:*
1489
1490
* 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
1491
* HGC: waiting for re-installation
1492 1 Richard Trotta
* Trigger checkout: main items to keep in mind: fADC thresholds, timing HMS/SHMS - leading arm, possible rate limitations
1493
* Shifts
1494
* Diagnostics scripts and documentation
1495
* Personnel schedules
1496
1497
----
1498 111 Richard Trotta
1499 1 Richard Trotta
h3. June 28, 2018
1500
1501
*Links to talks->* "Richard":https://redmine.jlab.org/documents/34
1502
1503
*Action Items:*
1504
1505
* Develop and post shift schedule. Send out request. Find out who is KAONLT liaison (Tanja)
1506
* Contact potential run coordinators. (Tanja)
1507
* Aerogel tray exchange for start of experiment and coordination of future exchanges (Vladimir)
1508
* Update runplan and prepare documents needed for shift crew, e.g. run sheets (Garth)
1509
* Set up a web page to collect and link from Redmine - How-To documents, initial calibrations, etc. (Garth, Richard)
1510
* 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)
1511
* Develop trigger/detector checkout plan (Tanja, initial draft)
1512
** Are all experts available at run start, experts needed: coincidence timing , Harp Scans, BCM calibrations, ...
1513
* 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)
1514
* Find out if all aerogel trays needed for experiment can be stored inside Hall C to avoid having to open truck ramp (Vladimir)
1515
1516
*Analysis Updates:*
1517
1518
* Ryan 
1519
** resolving differences between his analysis and Richard's
1520
1521
* Richard
1522
** 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
1523
** 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.
1524
1525
----
1526 111 Richard Trotta
1527 1 Richard Trotta
h3. May 31, 2018
1528 35 Stephen Kay
1529 1 Richard Trotta
*Links to talks->* "Samip":https://redmine.jlab.org/documents/30
1530 35 Stephen Kay
1531 1 Richard Trotta
----
1532 111 Richard Trotta
1533 1 Richard Trotta
h3. May 17, 2018 
1534 35 Stephen Kay
1535 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
1536 35 Stephen Kay
1537 111 Richard Trotta
* Luminosity scans (Richard, Ryan)
1538 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
1539
** 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
1540 1 Richard Trotta
** discussion about pre-scale factors
1541 35 Stephen Kay
1542
* Discussion about Richard's script extracting and printing information from report files and trees including histograms
1543
** Add option for looking at yields with cuts on cointime, target window, and missing mass
1544 1 Richard Trotta
** Add option to look at real peak vs. background level
1545 35 Stephen Kay
1546
* H(e,e'p) kinematics investigation for fall run (Samip)
1547 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
1548 35 Stephen Kay
1549
* *Action Items*
1550
** Luminosity scans at low rates from January (Richard)
1551
** Luminosity scans from April with corrected efficiencies, e.d. DT (Ryan)
1552
** H(e,e'p) and H(e,e') kinematics for upcoming Kaon LT run (Samip)
1553
** Kaon LT detailed run plan (Garth, Pete, Tanja)
1554 1 Richard Trotta
** Preparations, e.g. report files, diagnostic histograms and real time monitoring, shift worker instructions, optimization of trees (all)
1555
1556
----
1557 111 Richard Trotta
1558 35 Stephen Kay
h3. May 10, 2018
1559 2 Richard Trotta
1560 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
1561
1562
* Luminosity Scans January 2018 (Richard)
1563
** Tracking-based analysis for Runs 1415-1423, .. for now focus on HMS, typical HMS S1X rates are <
1564
** Cuts applied: PID for electrons (Cer, Cal), acceptance (delta)
1565
** Efficiency calculation was investigated in detail and applied using scalers from trees
1566
** Results for carbon (normalized to 30uA) show large variation - need to understand
1567
** *Next steps:*
1568
*** Double check calculation of computer lifetime, look for differences in TRIG and PRETRIG scalers
1569
*** Check stability of pre-scale (Ryan saw changes within runs)
1570
*** Check if detector calibrations for runs are implemented correctly
1571 1 Richard Trotta
*** Analyze with Ryan's cuts
1572 35 Stephen Kay
1573
* Luminosity Scans April 2018 (Ryan)
1574
** Confirms Richard's earlier finding that scaler-based analysis is not reliable and that it's best to analyze event-by-event
1575
** Tracking-based analysis for runs 2073-2095
1576
** Cuts applied: PID for electrons (TOF, Cal, Chi2), acceptance (delta and angles), BCM4a
1577
** Included most recent detector calibrations in replay of these runs
1578
** Efficiencies from report file mainly, may need to update tracking efficiency implementation
1579
** Found that calculations of computer deadtime requires different set of scalers for runs from January to those from April 2018
1580
** Results show carbon yields consistent with unity within error (0.5% error bars), and boiling for hydrogen and deuterium
1581 5 Richard Trotta
** *Next steps:*
1582 35 Stephen Kay
*** Check tracking efficiency
1583
1584 1 Richard Trotta
* *Global comments on Luminosity Scans (so far)*
1585 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.
1586
** Efficiencies in report files need to be updated, e.g. CPU deadtime (Richard)
1587
** Check if BCM4a is the one closest to the target - get a map of the hall (Richard, Ryan)
1588
** Uncertainties on current
1589 1 Richard Trotta
** Detector calibrations
1590 35 Stephen Kay
** HMS vs. SHMS
1591
1592
* eK+ coincidence time from SIDIS Spring 2018 run (Samip)
1593
** Worked with Mark Jones on coincidence time calculation - now available in hcana (see Samip's 10 May 2018 email for more details)
1594
** runs used in this analysis: 3423 with Q2=3.1 GeV2 and W=2.78 GeV
1595
** Coincidence time spectrum shows peak separations >2 ns corresponding to different accelerator frequency
1596
** Missing mass spectra: Kaon peak clearly visible, also see pions even after cuts
1597 1 Richard Trotta
** Found that pions appear localized in phase space - seems to be due to end point in kinematic phase space
1598 2 Richard Trotta
** *Next steps:*
1599 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)
1600
1601
* Yield normalized ratios from SIDIS (Hem)
1602
** Yield ratios of data to MC match well in shape, but normalization seems not quite right
1603 4 Richard Trotta
** *Next steps:*
1604
*** Check if efficiencies, currents, run time etc. are taken into account correctly
1605
1606 35 Stephen Kay
----
1607 111 Richard Trotta
1608 4 Richard Trotta
h3. April 26, 2018
1609 35 Stephen Kay
1610 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
1611 35 Stephen Kay
1612
* Discussion luminosity scan analysis (earlier scan) - Richard
1613
** 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
1614
** Notes on efficiencies in report file:
1615
*** DT (EDTM) is not electronic deadtime. Instead use for now 50ns* trigger rate for HMS and 100ns* trigger rate for SHMS
1616
*** Cherenkov efficiency seems low (check if that is due to PID, thresholds, pi/e, etc)
1617
*** Tracking efficiency needs to be checked
1618
*** 3/4 trigger efficiency seems ok
1619
* Discussion luminosity scan analysis (later scan) - Ryan
1620
** Fewer carbon runs than earlier scan
1621 111 Richard Trotta
** Shown is a tracking-based analysis using data from the ROOT trees
1622 35 Stephen Kay
** First results for carbon, LH3, and LD2, but efficiencies need to be checked
1623
* SIDIS analysis - Hem
1624
** Shown is a data/MC comparison for different kinematic settings. Agreement in shape is very good. Normalization has yet to be applied.
1625
** Discussion about agreement in z and apparent offset - relation of this offset with spectrometer offset
1626
* Analysis of exclusive events in SIDIS - Samip
1627
** Shown is a look at the first kaon events in exclusive limit of SIDIS data
1628
** Ongoing work on implementing coincidence time into tree
1629
* Discussion of run plan, and in particular possible low Q2/low energy
1630
** Assume that kaon low Q2=0.4 already included - have kinematics with specified beam energies, if needed
1631
** 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
1632
** Garth will put this together in a draft email
1633 12 Richard Trotta
1634
----
1635 111 Richard Trotta
1636 12 Richard Trotta
h3. March 29, 2018
1637 35 Stephen Kay
1638 13 Richard Trotta
*Links to talks->* "Richard, ":https://redmine.jlab.org/documents/16 "Samip":https://redmine.jlab.org/documents/27
1639 35 Stephen Kay
1640
* Details of adding points to fall run plan - will be ready sooner, likely in week of 4/1 (Garth, Samip, Tanja)
1641
* Luminosity scans (Ryan, Andres, Richard, Pete)
1642
* Macros, SIDIS analysis (Hem, Anashe)
1643
* Elastic data (TBD)
1644 14 Richard Trotta
1645 18 Richard Trotta
----
1646 111 Richard Trotta
1647 18 Richard Trotta
h3. February 22, 2018
1648 35 Stephen Kay
1649 18 Richard Trotta
*Links to talks->* "Andres":https://redmine.jlab.org/documents/19
1650 35 Stephen Kay
1651
*  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.
1652
* Brief description of Samip's work - working on coincidence timing decoding with JLab staff and re-optimization of kinematics
1653
* Discussion of Richard's slides on run plan kinematics and preparations -
1654
** 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
1655
** 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
1656
** for each setting will need 1-2 shifts for calibrations - need to negotiate with other experiments in run group
1657
** kinematics plots W-Q2 show that still need to do some optimization
1658
** run sheets: include raster size, update coincidence count labeling, and carbon target labeling
1659 26 Richard Trotta
* Discussion of next meeting. Garth at JLab 8-16 March - might have meeting during that time.
1660 35 Stephen Kay
1661
* *Action Items:*
1662
** Post slides/notes from this meeting and procedure to set up hcana in Redmine (Tanja)
1663
** Update run sheet and kinematic optimization for W/Q2 (Garth)
1664
** Circulate elastic calculations for kinematic settings (Samip)
1665
** Continue investigation of elastic data and run plan kinematics (Andres/Richard)
1666
** Test software installation instructions (Pete)
1667 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) 
1668
1669 1 Richard Trotta
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