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Kaon LT Meetings » History » Version 492

Vijay Kumar, 03/02/2023 02:24 PM

1 116 Richard Trotta
{{>TOC}}
2 1 Richard Trotta
3 293 Garth Huber
h1. *KaonLT/PionLT 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
11 491 Vijay Kumar
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12
13 490 Vijay Kumar
h3. March 02, 2023
14
15
* Vijay
16
** MMpi cut updated.
17
** 8th t-bin adjusted.
18
** Events per t-bin calculated for each epsilon setting.
19
** Experimental Yield calculation in each bin is done.
20 492 Vijay Kumar
** More details of the update are in the slides. attachment:KaonLT_meeting_March02_2023.pdf
21 490 Vijay Kumar
22 478 Richard Trotta
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23
24 488 Ali Usman
h3. Feb 23, 2023
25
26 489 Garth Huber
* Garth/Stephen notes  attachment:mtg_23feb23.txt
27 488 Ali Usman
* Ali
28
** Update on HMS Cherenkov and Calorimeter efficiency study. attachment:KaonLT_Meeting_Feb_23.pdf
29
** Looking at wide range of Heep Singles settings from KaonLT data (primarily low e data).
30
31
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32
33 486 Vijay Kumar
h3. Feb 16, 2023
34
35 487 Garth Huber
* Garth/Stephen notes attachment:mtg_23feb16.txt
36 484 Vijay Kumar
* Vijay
37
** Updated the diamond cut for Q2 = 0.38 GeV2 data.
38
** t resolution checked from the center setting of SIMC at low epsilon.
39
** Binned the data in t (total 8 bins).
40
** t resolution checked for each t bin too.
41
** Working to bin the data in Phi (16 bins).
42 485 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
43 484 Vijay Kumar
44
45
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46
47 481 Ali Usman
h3. Feb 9, 2023
48
49 483 Garth Huber
* Garth/Stephen Notes attachment:mtg_23feb09.txt
50 481 Ali Usman
* Ali
51
** attachment:KaonLT_Meeting_Feb_09.pdf
52
** HMS Cerenkov and Calorimeter Study for different kinematics settings.
53 478 Richard Trotta
* Richard
54
** attachment:KaonLTMeeting2_9_23.pdf
55
** Fixed the odd right distribution for Q2=5.5 by applying more strict cointime cuts.
56 479 Richard Trotta
** 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.
57 326 Garth Huber
58 405 Vijay Kumar
---
59 1 Richard Trotta
60 474 Vijay Kumar
h3. Feb 2, 2023
61
62 476 Garth Huber
* Garth/Stephen Notes attachment:mtg_23feb02.txt
63 475 Richard Trotta
* Richard
64
** attachment:KaonLTMeeting2_2_23.pdf
65
** The simc portion of the LT_analysis code is working but there is a bug I am sorting out which produces incorrect plots
66
** 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.
67
** 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.
68 474 Vijay Kumar
* Vijay
69
** Update from the analyzed low epsilon data of Q2 = 0.38 GeV2. attachment:KaonLT_meeting_Feb2_2023.pdf
70 477 Alicia Postuma
* Alicia
71
** Preliminary asymmetry results: Q2=3/W=2.32, Q2=4.4/W=2.74, Q2=2.115/W=2.95, aluminum
72
** attachment:Asymmetry_Postuma_Feb2.pdf
73
74 474 Vijay Kumar
75
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76
77 469 Richard Trotta
h3. Jan 26, 2023
78
79 473 Garth Huber
* Stephen's Notes attachment:mtg_23jan26.txt
80 469 Richard Trotta
* Richard
81
** attachment:KaonLTMeeting1_26_23.pdf attachment:FullAnalysis_Q5p5W3p02_highe.pdf
82
** 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.
83
** SIMC vs Data plots for Q2=5p5 show a very small SIMC. Need to investigate further.
84 470 Nathan Heinrich
* Nathan
85
** attachment:RefTimes_Update_2023-01-26.pdf 
86
** Asked Carlos Yero about the cointime ref times, he sent me an older email chain attachment:ref_times_email_exchange.txt
87
*** only SHMS variables are used.
88
** Presented ref times plots, and suggested cuts.
89 471 Nathan Heinrich
*** Cuts are already set up and pull request is sent to LTSep_Analysis_2022 branch
90
91 469 Richard Trotta
---
92
93 458 Richard Trotta
h3. Jan 19, 2023
94
95 467 Garth Huber
* Garth/Stephen Notes  attachment:mtg_23jan19.txt
96 462 Ali Usman
* Ali
97
** Looking at HMS Calorimeter and Cherenkov Efficiency and PID. attachment:KaonLT_Meeting_Jan_19.pdf
98 460 Vijay Kumar
* Vijay
99
** attachment:Vijay_Jan19_2023.pdf
100
** Trying to understand the pion cross-section across the acceptance. 
101 464 Alicia Postuma
* Alicia
102
** attachment:Asymmetry_Postuma_Updates-6.pdf
103
** Added dummy target subtraction to asymmetry calculation
104
** Discussed fitting to extract cross-section ratio
105
** Requested: details on error calculations: attachment:Asymmetry_Errors.pdf
106 458 Richard Trotta
* Richard
107
** attachment:KaonLTMeeting1_19_23.pdf
108
** Implemented Jacob's diamond cut script into the setup before Bill's code. This also does the t-binning as well.
109
** 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.
110 461 Nathan Heinrich
* Nathan
111 468 Garth Huber
** Started working on reference times
112 461 Nathan Heinrich
** has some extra peaks in some runs
113
*** Should be explained by the triggers on in each run
114 1 Richard Trotta
** attachment:RefTimes_Update_2023-01-19.pdf
115 468 Garth Huber
116
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117 458 Richard Trotta
118 453 Ali Usman
h3. Jan 4, 2023
119
120 457 Garth Huber
* Garth's Notes attachment:mtg_23jan04.txt
121 453 Ali Usman
* Ali
122
** attachment:Jan4_KLT_Meeting.pdf
123 1 Richard Trotta
** All Kaon_LT data has been replayed over the holidays. Slide show list of major changes for the replay.
124 458 Richard Trotta
125
---
126 459 Richard Trotta
127 458 Richard Trotta
h2. 2022 Meetings
128 454 Ali Usman
129 453 Ali Usman
---
130
131 450 Richard Trotta
h3. Dec 21, 2022
132
133 457 Garth Huber
* Garth/Stephen Notes attachment:mtg_22dec21.txt
134 450 Richard Trotta
* Richard
135 451 Richard Trotta
** attachment:KaonLTMeeting12_21_22.pdf
136 450 Richard Trotta
** 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. 
137
** 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.
138
139
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140
141 449 Garth Huber
h3. Dec 14, 2022
142
143 457 Garth Huber
* Garth/Stephen Notes attachment:mtg_22dec14.txt
144 449 Garth Huber
145
---
146
147 442 Richard Trotta
h3. Dec 7, 2022
148 440 Ali Usman
149 457 Garth Huber
* Garth/Stephen Notes attachment:mtg_22dec07.txt
150 440 Ali Usman
* Ali
151 442 Richard Trotta
** New error calculation (binomial) for efficiencies and Live Times. attachment:KaonLT_Dec_5.pdf
152 443 Richard Trotta
* Richard
153 446 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
154 443 Richard Trotta
** A new subroutine has been added for the hcana variable calculations in SIMC, this is ongoing.
155
** 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.
156
** 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.
157 448 Alicia Postuma
* Alicia: attachment:Asymmetry_Postuma_Dec07.pdf
158 440 Ali Usman
159
---
160
161 439 Garth Huber
h3. Nov 30, 2022
162
163
* Garth/Stephen Notes attachment:mtg_22nov30.txt
164
165
---
166
167 437 Garth Huber
h3. Nov 23, 2022
168
169
* Garth/Stephen Notes attachment:mtg_22nov23.txt
170 438 Alicia Postuma
* Alicia asymmetry update attachment:Asymmetry_Postuma_Updates.pdf
171 437 Garth Huber
172
---
173
174 424 Richard Trotta
h3. Nov 16, 2022
175
176 435 Garth Huber
* Garth/Stephen Notes attachment:mtg_22nov16.txt
177 424 Richard Trotta
* Richard
178 428 Richard Trotta
** "8p2 LH2":https://redmine.jlab.org/attachments/1684 "8p2 C":https://redmine.jlab.org/attachments/1685
179
** "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
180 424 Richard Trotta
** 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.
181
** 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.
182
** I found a script for raster calibrations. The script is being fixed as it is currently a bit of a mess.
183 429 Richard Trotta
** https://redmine.jlab.org/projects/kltexp/wiki/Hall_C_Raster_Algorithm
184 430 Stephen Kay
* Stephen
185
** Updates to the hcana RFTime class
186
** Added in particle dependent corrections for e/pi/K/p for each spectrometer
187
*** Calculate beta for each particle type (from momentum, delta)
188
*** Determine path length from xptar and delta
189
*** Calculate ToF
190
*** Add this in modulo that determines RFtime
191
*** Tried method Shuo used initially, didn't really do anything
192
** Some further updates needed before it will be pushed to the hallc repo
193 433 Stephen Kay
** "Slides":https://redmine.jlab.org/attachments/1694 
194
** "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 
195
** "RF correction simply the ToF added in the modulo fn, seems to work":https://redmine.jlab.org/attachments/1695
196 436 Garth Huber
* Vijay (presented by GH)
197
** low Q2 attachment:CPULT_lowQ2.png attachment:TLT_lowQ2.png attachment:ELT_lowQ2.png
198 424 Richard Trotta
199
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200
201 420 Vijay Kumar
h3. Nov 09, 2022
202
203 421 Garth Huber
* Garth/Stephen Notes attachment:mtg_22nov09.txt
204 422 Garth Huber
* Bill (Wenliang) Li L/T-separation code tutorial.
205 423 Garth Huber
** Video recording is posted at: http://lichen.phys.uregina.ca/~huberg/kaon/LT_tutorial_20221109_1920x1080.mp4
206 420 Vijay Kumar
* Vijay
207
** 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 
208
209
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210
211 405 Vijay Kumar
h3. Nov 2, 2022
212
213 416 Garth Huber
* Garth/Stephen notes attachment:mtg_22nov02.txt
214 405 Vijay Kumar
* Vijay
215 406 Vijay Kumar
** 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.
216 1 Richard Trotta
attachment:Vijay_REYIELD_2p7C.pdf 
217 419 Vijay Kumar
  
218 411 Ali Usman
* Ali
219
** 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.
220 412 Ali Usman
attachment:KaonLT_Meeting_Nov_2.pdf
221 418 Jacob Murphy
* Jacob
222
** 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.
223
attachment:HMS_Optimization_at_High_Momentum.pdf
224 413 Richard Trotta
* Richard
225 427 Richard Trotta
** "6p2 C":https://redmine.jlab.org/attachments/1658 "6p2 LH2":https://redmine.jlab.org/attachments/1659
226 426 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
227 413 Richard Trotta
** 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%.
228
** 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.
229
** 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.
230
231 405 Vijay Kumar
 
232 325 Garth Huber
----
233 346 Richard Trotta
234 403 Garth Huber
h3. Oct 26, 2022
235
236
* DaveG notes attachment:mtg_22oct26.txt
237
238
----
239
240 402 Garth Huber
h3. Oct 19, 2022
241 1 Richard Trotta
242 402 Garth Huber
* Garth/Stephen notes attachment:mtg_22oct19.txt
243 401 Richard Trotta
* Richard
244
** The trend in the SHMS track yields is still present in the positive polarity luminosity runs.
245
** Talk for the Hall C Quarterly meeting was discussed. 
246
247
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248
249 400 Garth Huber
h3. Oct 12, 2022
250
251
* Garth/Stephen notes attachment:mtg_22oct12.txt
252
253
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254
255 397 Richard Trotta
h3. Oct 4, 2022
256
257 399 Garth Huber
* Garth/Stephen notes attachment:mtg_22oct05.txt
258 397 Richard Trotta
* Richard
259
** attachment:KaonLTMeeting10_4_22.pdf
260
** 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.
261
*** It should be noted, there are huge discrepancies between BCM4A and BCM1 in some cases (like 20+ uA).
262
** Ran into some issues with the cross-section code. I am in debug mode trying to find the cause.
263
** 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.
264
265
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266
267 393 Garth Huber
h3. Sept 28, 2022
268
269 394 Garth Huber
* Garth/Stephen notes attachment:mtg_22sep28.txt
270
* Jacob
271 396 Jacob Murphy
** HMS optics fitting - attachment:HMS_Optics_Calibrations_Update.pdf
272 394 Garth Huber
273 393 Garth Huber
----
274
275 382 Garth Huber
h3. Sept 21, 2022
276
277 392 Garth Huber
* Garth/Stephen notes attachment:mtg_22sep21.txt
278 389 Richard Trotta
* Richard
279
** attachment:Yield_6p2cl1.pdf attachment:Yield_10p6cl2.pdf attachment:Yield_10p6cl1.pdf
280
** 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.
281 390 Richard Trotta
** 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.
282
* Ali
283
** attachment:Ali_Sep21_Analysis.pdf
284 391 Ali Usman
** 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.
285 389 Richard Trotta
286 382 Garth Huber
----
287
288 379 Garth Huber
h3. Sept 8, 2022
289
290 382 Garth Huber
* Garth/Stephen Notes attachment:mtg_22sep08.txt
291 383 Ali Usman
* Ali
292
** attachment:Sep8_Analysis.pdf
293 386 Ali Usman
** Heep Coin Analysis update. Fixed the issue with emiss and pmiss. Includes number of debug tests.
294 384 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
295 387 Ali Usman
** Full analysis files are the latest data/simc comparison for different beam energies (No offsets applied yet) 
296 380 Richard Trotta
* Richard
297
** attachment:KaonLTMeeting9_8_22.pdf
298 381 Richard Trotta
** attachment:Yield_6p2_l1_all.pdf attachment:Yield_10p6_l1_all.pdf attachment:Yield_10p6_l2_all.pdf
299 380 Richard Trotta
** Improved total uncertainties
300
** In-depth with tracking cut analysis underway
301
** Poor TLT consistent with poor CPULTs
302
303 379 Garth Huber
----
304
305 371 Garth Huber
h3. Aug 31, 2022
306
307 379 Garth Huber
* Garth/Stephen Notes attachment:mtg_22aug31.txt
308 378 Richard Trotta
* Richard
309
** attachment:KaonLTMeeting8_31_22.pdf
310
** 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.
311
** Uncertainties for the luminosities and heep are next up.
312
313 371 Garth Huber
----
314
315 374 Garth Huber
h3. Aug 26, 2022
316 1 Richard Trotta
317 375 Garth Huber
* Meeting on L/T-separation procedure
318 374 Garth Huber
** Garth's slides attachment:LT_sep_iterations.pdf
319
** Bill's tutorial (Nov 2018) attachment:Kaon_LT_tutorial_18nov28.pdf
320 377 Garth Huber
** Stephen's notes attachment:LTsep_mtg_22aug26.txt
321 395 Garth Huber
** Recording of Sept 27 repeat at: http://lichen.phys.uregina.ca/~huberg/kaon/LT_tutorial_20220927_1920x1080.mp4
322 373 Garth Huber
323
----
324 372 Garth Huber
325 366 Garth Huber
h3. Aug 17, 2022
326 368 Vijay Kumar
327 371 Garth Huber
* Garth/Stephen Notes attachment:mtg_22aug17.txt
328 367 Vijay Kumar
* Vijay
329 369 Vijay Kumar
** The summary of the Heepcheck study is attached here. attachment:Vijay_Aug17_2022.pdf 
330 367 Vijay Kumar
** 3.6 and 3.9 GeV data do NOT have the angle offsets. This has been established in the study.
331 370 Richard Trotta
** I've plotted the offsets vs SHMS central momentum. Plots are attached in the attached pdf file.
332
* Richard
333
** The 10.6 GeV heep analysis is going well but the broad momentum distributions are making offsets difficult at times.
334
** 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. 
335
** 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.
336
** attachment:FullAnalysis_Offset_10p6.pdf
337
** attachment:HcanavSimc_scatter_calc.pdf
338 367 Vijay Kumar
 
339 366 Garth Huber
340
---
341
342 354 Garth Huber
h3. Aug 4, 2022
343
344 365 Garth Huber
* Garth/Stephen Notes attachment:mtg_22aug04.txt
345 363 Vijay Kumar
* Vijay
346
** 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  
347 362 Richard Trotta
* Richard
348
** attachment:KaonLTMeeting_8_4_22.pdf
349
** HeeP coin for 10p6 setting is looking pretty good. I still need to make some minor adjustments.
350
** TLT for Lumi is looking much better. The yields also are looking better but cut adjustments need to be made.
351
** HeeP singles have some odd issues that need to be resolved before offset analysis can begin.
352
** Hodoscope calibrations are all done except 6p2.
353 355 Garth Huber
354 354 Garth Huber
---
355
356 350 Richard Trotta
h3. July 14, 2022
357
358 353 Garth Huber
* Garth/Stephen Notes attachment:mtg_22jul14.txt
359 350 Richard Trotta
* Richard
360
** attachment:KaonLTMeeting7_14_22.pdf
361
** The W peaks for SIMC and data are very far offset from one another. This is being investigated.
362 1 Richard Trotta
* Vijay
363 350 Richard Trotta
** Heep Data MC comparo w/o offsets attachment:Heep_coin_no_offsets_vijay_22jul08.pdf
364 349 Garth Huber
365
----
366
367 344 Richard Trotta
h3. June 28, 2022
368
369 349 Garth Huber
* Garth/Stephen Notes attachment:mtg_22jun28.txt
370 344 Richard Trotta
* Richard
371
** Aerogel XY plots vs NPE to check out the tray location and efficiencies.
372
** Hodoscope and calorimeter scripts working. Hodoscope calibration looks good for 10p6 but needs improvement for other beam energies.
373
** HGCer efficiency and plots added to efficiency script. Need to discuss with Vijay on specifics of cuts and efficiencies.
374 1 Richard Trotta
** Started looking in detail at Bill's code. Some scripts and links are missing/broken.
375 348 Jacob Murphy
* Jacob
376
** EDTM Study Report completed, with newer versions of the TLT equations attachment:EDTM_Study_Report.pdf
377
** Graphical Guide for Event Types created to accompany the report, illustrating prescaling with EDTM attachment:Graphical_Guide_Evt_Type.pdf
378 347 Richard Trotta
** Plan to update report file template with new equations and errors soon
379 344 Richard Trotta
380
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381 282 Vijay Kumar
382 338 Garth Huber
h3. June 14, 2022
383
384 343 Garth Huber
* Garth's Notes attachment:efficiencies_22jun13.txt
385 342 Richard Trotta
* Richard
386
** Fixed issues with simc script and 10p6 Heepcoin data. Issue with data was an offset of 40ns that was corrected halfway through runs.
387
** Aerogel XY plots vs NPE to check out the tray location and efficiencies.
388
** Efficiency plots for all production runs.
389
** attachment:KaonLTMeeting6_14_22.pdf
390 338 Garth Huber
391
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392
393 1 Richard Trotta
h3. May 31, 2022
394 330 Garth Huber
395
* Garth and Stephen's Notes attachment:mtg_22may31.txt attachment:efficiencies_22jun02.txt
396 340 Garth Huber
* Vijay 
397 332 Vijay Kumar
** The updated Heep coin study (Heepcheck program) at 3.9 GeV KaonLT data is attached here attachment:Vijay_KaonLT_meeting_May31_2022.pdf .
398 334 Ali Usman
* Ali
399 355 Garth Huber
** First look at the HEEP COIN Data/SIMC comparison for the 8.2 GeV Kaon-LT data attachment:KaonLT_May31.pdf
400 332 Vijay Kumar
401 314 Garth Huber
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402
403
h3. May 17, 2022
404
405 325 Garth Huber
406 331 Garth Huber
* Garth and Stephen's Notes attachment:mtg_22may17.txt attachment:efficiencies_22may25.txt
407 318 Richard Trotta
* Richard
408
** Updated heep coin scripts for the farm. Ali is testing them and should be able to get plots soon.
409
** There was a small typo in the simc input file that dramatically changed the shape of the plots. attachment:KaonLTMeeting5_17_22.pdf
410
** Updated version of efficiency columns for the script that will grab efficiencies and various other values. attachment:efficiency_output_list.docx
411 316 Vijay Kumar
* Vijay 
412
** The updated heep coin study (some spectrometers offsets changed) at 3.9 GeV KaonLT data is attached here attachment:Vijay_KaonLT_meeting.pdf .
413 317 Vijay Kumar
414 314 Garth Huber
----
415
416 299 Garth Huber
h3. May 3, 2022
417 303 Vijay Kumar
418 315 Garth Huber
* Garth and Stephen's Notes attachment:mtg_22may03.odt  attachment:efficiencies_22may03.odt
419 308 Ali Usman
* Ali
420
** Fixed all the settings for high Q2 KaonLT data. Also slide on accessing spectrometer angles from CODA
421
** attachment:KaonLT_May_3.pdf
422 309 Richard Trotta
* Richard
423 312 Richard Trotta
** 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
424 302 Vijay Kumar
* Vijay 
425 304 Vijay Kumar
** The SIMC simulation study of the PinoLT data at Q2 = 0.38 and 0.42 GeV2 has completed (preliminary) for all settings.
426 305 Vijay Kumar
** An output pdf file of the 4.5 GeV, Q2 = 0.42 GeV2 and "center" setting is here attachment:Vijay_analysis_May3_2022.pdf .
427 299 Garth Huber
428 300 Garth Huber
----
429
430 296 Vijay Kumar
h3. April 19, 2022
431 299 Garth Huber
432
* Garth's Notes attachment:mtg_22apr19.txt
433 1 Richard Trotta
* Vijay 
434 296 Vijay Kumar
** SIMC simulation updates at Q2 = 2.7, 3.6 and 4.5 GeV2. attachment:Vijay_KaonLT_Meeting_Apr19_2022.pdf  
435 298 Vijay Kumar
436 296 Vijay Kumar
----
437
438
h3. April 06, 2022
439 306 Vijay Kumar
440 355 Garth Huber
* Garth's Notes attachment:mtg_22apr06.txt
441 306 Vijay Kumar
* Ali 
442 293 Garth Huber
**  attachment:Analysis_Update_Apr_6.pdf 
443 290 Richard Trotta
* Richard 
444
** attachment:KaonLTMeeting4_6_22.pdf
445 288 Richard Trotta
** The analysis of the 10.6 GeV heep coin/singles settings are still ongoing. 
446
** There were some issues getting the replays working for the singles runs and the analysis. Things finally were sorted out yesterday (and this morning).
447
** The SHMS heep singles are presented. Overall, they look fine. There are still some things to sort out.
448 291 Richard Trotta
** The HMS heep singles are still running.
449 282 Vijay Kumar
* Vijay 
450 306 Vijay Kumar
** The simulation study of the 4.9 GeV KaonLT data has completed.
451 288 Richard Trotta
** This energy has left, center and right settings data. All these settings look fine. 
452 295 Garth Huber
** See the pdf for more info. attachment:Vijay_KaonLT_Meeting_Apri_06_2022.pdf  
453 284 Vijay Kumar
454 1 Richard Trotta
----
455 284 Vijay Kumar
456 281 Richard Trotta
h3. March 23, 2022
457 1 Richard Trotta
458 281 Richard Trotta
* Garth's Notes attachment:mtg_22mar23.txt
459 1 Richard Trotta
* Richard 
460 278 Richard Trotta
** 10.6 GeV heep coin was analyzed. Things look pretty good so far, still some work to be done. attachment:KaonLTMeeting3_23_22.pdf
461
** Heep singles are next up. There have been issues replaying these runs but Ali may have fixed this issue with his parameter file changes.
462 280 Nathan Heinrich
* Nathan
463
** 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.
464 278 Richard Trotta
** after changing back to 1 discrepancy resolved. Slides: attachment:Mode10Update_2022Mar23.pdf
465
466
---
467
468
h3. March 9, 2022
469
470
* Garth's Notes attachment:mtg_22mar09.txt
471 355 Garth Huber
* Regina March 4 meeting on pion leak through in (e,e'K+) analysis attachment:grp_22mar04.txt
472 267 Richard Trotta
* Richard 
473
** Vijay's scripts are working and Richard reproduced some of his previous plots. attachment:KaonLTMeeting3_9_22.pdf
474
** The next step is to do a full analysis of the 10.6 GeV heep coin/singles data.
475 1 Richard Trotta
* Nathan
476 277 Garth Huber
** Update on the current state of mode 10: attachment:Mode10Update_2022Mar9.pdf 
477
** See Mark Jones' slide on changes to hcana: https://redmine.jlab.org/attachments/1424
478 269 Richard Trotta
479 261 Garth Huber
---
480
481 271 Garth Huber
h3. February 23, 2022
482 273 Garth Huber
483 271 Garth Huber
* Garth's Notes attachment:mtg_22feb23.txt
484
485 272 Garth Huber
---
486
487 244 Vijay Kumar
h3. January 26, 2022  
488
489 271 Garth Huber
* Garth's Notes attachment:mtg_22jan26.txt
490 253 Vijay Kumar
* Vijay, Heep updates from the PionLT experiment. attachment:Analysis_Updates_Jan26_2022.pdf 
491 251 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   
492 252 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
493 246 Vijay Kumar
** The 3.6 and 4.5 GeV data do not have elastic data.
494 250 Vijay Kumar
** Coin: 2.7, 3.6 and 4.5 GeV. attachment:Analysed_2p7.pdf attachment:Analysed_3p6.pdf attachment:Analysed_4p5.pdf   
495 254 Nathan Heinrich
* Nathan, Short update on the Mode 10
496 255 Nathan Heinrich
** Short update. May need to update hcana to change software voltage threshold. attachment:2022-01-26NathanHeinrich.pdf
497 256 Jacob Murphy
* Jacob, EDTM Study 2
498 260 Jacob Murphy
** EDTM study with beam, taken during LUMI Scan 3
499 255 Nathan Heinrich
** Early look at 3rd EDTM Study
500 248 Vijay Kumar
** Additional notes on increased deadtime in SHMS at High Current. attachment:PionLT_EDTM_Study2_Analysis.pdf
501 113 Richard Trotta
502 222 Richard Trotta
----
503 200 Richard Trotta
504 236 Garth Huber
h3. January 12, 2022  
505
506
* Garth's Notes attachment:mtg_22jan12.txt
507
* Junaid
508
** PID study
509 240 Vijay Kumar
* Vijay
510 238 Vijay Kumar
** Heep-singles study attachment:Analysis_Updates1_Jan12.pdf 
511 236 Garth Huber
* Nathan
512
** Mode-10 data variables
513
514 243 Richard Trotta
----
515
516 234 Garth Huber
h3. January 5, 2022  
517
518 235 Garth Huber
* Garth's Notes attachment:mtg_22jan05.txt
519 221 Richard Trotta
* Stephen
520
** Stephen was updating GitHub but UTIL_BATCH has some permissions issues
521
* Richard
522
** Update to KLT task schedule
523
** Meeting between Richard and Vijay to discuss task breakdown Friday, January 7th at 11 am EST
524
** EDTM study 2 will done sometime this weekend
525 223 Richard Trotta
* Vijay
526
** Breakdown of HEEP single analysis for low Q2 data
527 224 Richard Trotta
*** Shapes of SIMC and data are very off
528
*** It seems to be a systematic issue on Vijay's part because the same issue is being seen in PLT data
529 231 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.  
530 229 Vijay Kumar
** https://redmine.jlab.org/attachments/1376
531 228 Vijay Kumar
** https://redmine.jlab.org/attachments/1375
532 225 Nathan Heinrich
* Nathan
533
** Update on fADC mode 10 studies and the fADC deadtime studies
534
** https://redmine.jlab.org/attachments/1372
535 226 Jacob Murphy
* Jacob
536
** Summary of EDTM analysis so far in the PionLT experiment
537 227 Jacob Murphy
** https://redmine.jlab.org/attachments/1373
538 242 Richard Trotta
539 221 Richard Trotta
----
540
541
h2. 2021 Meetings
542
543 220 Richard Trotta
h3. August 4, 2021
544
545
* Richard
546
** 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).
547
** Issues with the COIN are seen but may be a replay issue.
548
549
----
550
551 217 Richard Trotta
h3. July 21, 2021
552
553 218 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1250/KaonLTMeeting7_14_21.pdf
554 217 Richard Trotta
** 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.
555
556
----
557
558 215 Richard Trotta
h3. May 12, 2021
559
560
* Richard
561
** 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.
562
563
----
564
565 213 Richard Trotta
h3. April 28, 2021
566
567
* Richard
568 214 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.
569 213 Richard Trotta
570
----
571
572 211 Richard Trotta
h3. April 14, 2021
573 212 Richard Trotta
574 211 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_4_14_21.pdf
575
** 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). 
576
** Some PionLT carbon runs were looked at but there are still some issues (either cut or pathing related).
577
578
----
579
580 203 Richard Trotta
h3. March 31, 2021
581
582 206 Richard Trotta
* Richard
583 209 Richard Trotta
** Luminosity studies
584
*** PionLT carbon runs
585
**** Still having issues getting decent results. I think I am just missing a definition somewhere that I need to track down
586
*** Uncertainties
587
**** Easy to do, I just need to put it into my script
588
** Explicit PS calculations
589
*** I have gotten a rough script working for very simple runs (ie low rate, single spectrometer, calibration runs)
590
*** I am trying to expand to lumi singles runs, things get a bit more complex so I am just working out the trigger correlations
591
** Pass 2 runs
592
*** DEF-files
593
**** I checked out the DEF-files for our combination of the nested files
594
**** There are a lot a files (~150!!!!) and may be hard to track so next week *we should make a flowchart together*
595
**** Working on my list of branches for the next replay
596
***** Mainly just working on my list of branches for the explicit PS calculations
597
***** *Everyone should have a list of these branches by next mini-meeting (4/7/21)*
598 210 Stephen Kay
* Stephen
599
** Updated DEF-File for the "full" replay
600
*** Can't remove NData brances, Mark says they won't take up too many resources anyway
601
*** Removed individual PMT info and raw info for many detectors, reduced file size by factor ~2
602
** Updating DEF-files/scripts for calibrations as part of PionLT prep
603
** Will focus on DEF-file/DEF-cut file updates over next week
604
*** Will investigate HeeP replays over rest of this week.
605 207 Richard Trotta
606 203 Richard Trotta
----
607
608 201 Stephen Kay
h3. March 24, 2021
609
610
* KaonLT Mini Meeting focusing on Pass2 preparation
611
* "Task summary from Richard":https://redmine.jlab.org/projects/kltexp/wiki/Replay_2_Tasks
612
613
----
614
615 200 Richard Trotta
h3. March 17, 2021
616
617
* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_3_17_21.pdf
618 1 Richard Trotta
** 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.
619 202 Stephen Kay
* Mini meeting March 24th @ 4:30 EDT
620 201 Stephen Kay
621 200 Richard Trotta
----
622 194 Richard Trotta
623 199 Richard Trotta
h3. March 3, 2021
624
625
* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_3_3_21.pdf
626
** 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). 
627
** 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.
628
629
----
630
631
632 196 Richard Trotta
h3. February 17, 2021
633 194 Richard Trotta
634
* Richard
635
** 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.
636 198 Nathan Heinrich
* Nathan
637
** Presented an update on the Hodoscope Calibrations: https://redmine.jlab.org/attachments/download/1196/HodoscopeUpdate_2021Feb17.pdf
638
639 194 Richard Trotta
----
640
641 196 Richard Trotta
h3. February 3, 2021
642 193 Richard Trotta
643
* Richard
644
** A table with the aerogel efficiency for kaons is being created. It will be expanded to other particles and detectors.
645
646
----
647
648 196 Richard Trotta
h3. January 20, 2021
649 191 Richard Trotta
650
* "Richard":https://redmine.jlab.org/attachments/download/1172/KaonLTMeeting_1_20_21.pdf
651
** 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.
652
653
----
654
655 196 Richard Trotta
h3. January 6, 2021
656 190 Richard Trotta
657
* "Richard":https://redmine.jlab.org/attachments/download/1153/KaonLTMeeting1_6_21.pdf
658 322 Richard Trotta
** Analyzed most of the luminosity scans. There are a few issues I am investigating still which seem to be run related. 
659 186 Richard Trotta
660
----
661
662
h2. 2020 Meetings
663
664 185 Richard Trotta
h3. December 2, 2020
665
 
666
* Ali and Richard
667
** 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.
668
669
----
670
671 180 Richard Trotta
h3. November 18, 2020
672
673 183 Richard Trotta
* "Carlos":https://redmine.jlab.org/attachments/download/1103/LiveTime_Study_cyero.pdf
674 181 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.
675 180 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1101/KaonLTMeeting11_18_20.pdf
676
** Scaler analysis matches Carlos' code now. Overall significant improvements were made through some cut adjustments and incorrect variable definitions.
677
* Stephen
678 182 Richard Trotta
** Updated the hallc_replay_lt with parameter files for all coin peaks.
679 180 Richard Trotta
680
----
681
682 178 Richard Trotta
h3. November 4, 2020
683 321 Richard Trotta
 
684 178 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1092/KaonLTMeeting11_4_20.pdf
685 321 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. 
686 178 Richard Trotta
687 141 Stephen Kay
----
688
689 170 Richard Trotta
h3. October 28, 2020
690
691
* Ali
692 177 Richard Trotta
** Went over some of his tracking procedures for the report file implementation
693 172 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1091/KaonLTMeeting10_28_20.pdf
694 173 Richard Trotta
** Luminosity analysis continues. There are still some issues but things have improved a bit.
695 171 Stephen Kay
* "Stephen":https://redmine.jlab.org/attachments/download/1090/KaonLT_Meeting_28_10_20.pdf
696
** Discussion of CT peak analysis, progress and outline of what's left to do with this
697 174 Richard Trotta
* Vijay
698 176 Richard Trotta
** Dry run for Mark's hallc meeting tomorrow (10/29)
699 170 Richard Trotta
700
----
701
702 164 Richard Trotta
h3. October 14, 2020
703
704 168 Richard Trotta
* Ali
705 164 Richard Trotta
** Working through the REPORT_FILES template to get everything working and outputting proper information.
706
* "Richard":https://redmine.jlab.org/attachments/download/1085/KaonLTMeeting_10_14_20.pdf
707
** Updates on lumi scans. There are many issues from Scalers to Tracking that need to be resolved.
708 167 Richard Trotta
* Stephen
709 164 Richard Trotta
** He has included a demo for using the python analysis script in the README.
710 1 Richard Trotta
711 164 Richard Trotta
----
712
713 161 Richard Trotta
h3. September 23, 2020
714
715
* "Richard":https://redmine.jlab.org/attachments/download/1078/KaonLTMeeting_9_23_20.pdf
716
** 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. 
717
* Stephen
718 162 Richard Trotta
** 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.
719
* Petr
720
** Data fitting algorithm based on E.H. Bellamy paper. Extracts PMT spectra from ROOT file and makes a 1D projection histogram.
721 161 Richard Trotta
722
----
723
724 149 Richard Trotta
h3. September 9, 2020
725 156 Richard Trotta
726
* Richard
727 157 Richard Trotta
** Still working on run list, GUI checks
728 156 Richard Trotta
* "Stephen":https://redmine.jlab.org/issues/567
729
** New slim replay scripts and full replay scripts updated
730
* Ali
731
** Him and Stephen found an issue (already aware of) with zeros in the parameter files using Mark's hcana changes
732
** Need to be vigilant of crashed replays because this is probably the issue
733 158 Richard Trotta
* Vijay
734 156 Richard Trotta
** Nearly finished with HGcer calibrations
735 1 Richard Trotta
736 156 Richard Trotta
----
737
738
h3. August 26, 2020
739
740 149 Richard Trotta
*Links to talks->* "Ali":https://redmine.jlab.org/issues/483 "Vijay":https://redmine.jlab.org/issues/479
741 154 Richard Trotta
742
* Richard
743
** 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.
744
* Stephen
745
** Updated on RF times. There were a few issues with some runs, but overall most are finished.
746
* Ali
747
** 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)
748
* Vijay
749 150 Richard Trotta
** Updated the SHMS HGCher analysis. The calibrations are coming along, but a little more work needs to be finished up.
750 1 Richard Trotta
751 149 Richard Trotta
----
752
753 144 Richard Trotta
h3. July 29, 2020
754 147 Stephen Kay
755 148 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/attachments/download/1029/klt_7_29_20.html "Stephen":https://redmine.jlab.org/documents/106
756 146 Stephen Kay
757 155 Richard Trotta
* Stephen
758
** Updates on scripts to set pedestal defaults and AdcTdc offsets after hcana change
759
* Richard
760
** Updated plan and schedule for the analysis going forward
761 1 Richard Trotta
762 144 Richard Trotta
----
763
764 139 Richard Trotta
h3. July 8, 2020
765 1 Richard Trotta
766 139 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
767 150 Richard Trotta
768 139 Richard Trotta
----
769
770 132 Richard Trotta
h3. June 24, 2020
771
772 143 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
773 132 Richard Trotta
774
----
775
776 129 Richard Trotta
h3. June 9, 2020
777
778 135 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
779 129 Richard Trotta
780
----
781
782 125 Richard Trotta
h3. May 27, 2020
783
784 126 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
785 128 Richard Trotta
786 125 Richard Trotta
----
787
788 118 Stephen Kay
h3. May 13, 2020
789 124 Richard Trotta
790 138 Stephen Kay
*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
791 1 Richard Trotta
792 121 Richard Trotta
----
793
794 111 Richard Trotta
h3. April 29, 2020
795
796 138 Stephen Kay
*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
797 106 Richard Trotta
798 1 Richard Trotta
----
799 106 Richard Trotta
800 111 Richard Trotta
h3. April 15, 2020
801 104 Richard Trotta
802 102 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/attachments/download/977/KaonLTMeeting_4_15_20.pdf
803 105 Richard Trotta
804 102 Richard Trotta
----
805 95 Stephen Kay
806 111 Richard Trotta
h3. April 1, 2020
807 100 Stephen Kay
808 138 Stephen Kay
*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
809 101 Richard Trotta
810 41 Stephen Kay
----
811 93 Richard Trotta
812 111 Richard Trotta
h3. March 18, 2020
813 93 Richard Trotta
814
*Links to talks->* "Richard's EIC Temple Draft 2":https://redmine.jlab.org/attachments/download/942/DRAFT2_mesonSF_EIC_Temple.pdf
815 1 Richard Trotta
816 93 Richard Trotta
----
817 91 Richard Trotta
818 111 Richard Trotta
h3. March 11, 2020
819 92 Richard Trotta
820 1 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
821 94 Richard Trotta
822 91 Richard Trotta
----
823 88 Richard Trotta
824 111 Richard Trotta
h3. Feb 26, 2020
825 90 Richard Trotta
826
* Peter's changes to hcana should be coming soon. Richard will check with Mark when he is down there for an update.
827
* Need to incorporate the latest "BCM updates":https://hallcweb.jlab.org/doc-public/ShowDocument?docid=1034 from Dave Mack.
828 1 Richard Trotta
* Richard should look at the luminosity scalar analysis before and after the BCM changes once he gets his script working again.
829 88 Richard Trotta
**  He is checking with Mark about this while he is down in jlab. 
830 1 Richard Trotta
831
----
832 86 Richard Trotta
833 111 Richard Trotta
h3. Feb 10, 2020 
834 87 Richard Trotta
835 86 Richard Trotta
----
836 1 Richard Trotta
837 111 Richard Trotta
h3. Jan 22, 2020
838 83 Richard Trotta
839
*Links to talks->* "Richard's Hall C Winter Talk Draft 1":https://redmine.jlab.org/attachments/download/937/KaonLTHallC_WinterTalk2020_Draft1.pdf
840 85 Richard Trotta
841 1 Richard Trotta
----
842 83 Richard Trotta
843 111 Richard Trotta
h3. Jan 15,2020
844 81 Richard Trotta
845 82 Richard Trotta
*Links to talks->* "Richard's Hall C Winter Talk Outline":https://redmine.jlab.org/attachments/download/936/KaonLTHallC_WinterTalk2020.pdf
846 81 Richard Trotta
847
----
848 78 Richard Trotta
849 111 Richard Trotta
h3. Jan 8,2020
850 78 Richard Trotta
851 1 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/76
852 79 Richard Trotta
853 1 Richard Trotta
* Richard
854
** PID efficiency script is coming together
855
*** Tighter cuts and cuts on timing, beta, etc. will be needed for cleaner electron cuts
856
*** 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.
857
858 80 Richard Trotta
----
859 113 Richard Trotta
860 112 Richard Trotta
h2. 2019 Meetings
861 80 Richard Trotta
862 141 Stephen Kay
----
863
864 111 Richard Trotta
h3. Dec 17,2019
865
866 77 Richard Trotta
Reminder: Mark Jones' commissioning analysis meetings are bi-weekly and announced by Mark
867
868
* Stephen
869
** Number of passes finished for HMS calorimeter
870
*** Still wiggles in all passes
871
** Finished his report on calibrations, "DC and Calorimeters":https://redmine.jlab.org/documents/74
872
** 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
873
*** CUA will be putting together a similar list
874 1 Richard Trotta
875 77 Richard Trotta
* Richard
876
** Fixed one error issue with SHMS calorimeter calibration code (discussed Dec 10th meeting), but still have one error
877
** PID efficiency script plots are complete, but still some questions he needs to work out before a final version
878
*** Eventually need to include tracking into PID efficiencies
879
** Pete brought up the question for a number of multi-hits we are getting
880
*** (Dead Time)+(Trigger efficiency)-EDTM
881
882
----
883 72 Richard Trotta
884 111 Richard Trotta
h3. Dec 10,2019
885 72 Richard Trotta
886 74 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/73
887
888
* Garth and Stephen were in the most recent SIDIS meeting
889
** Wit had lots of hcana changes but they seem to be critical to our work 
890
*** Changes such as new detector classes
891 1 Richard Trotta
** Hopefully Wit will present these in the next commissioning meeting
892
893 77 Richard Trotta
* Stephen improved wiggles but still prevalent
894 74 Richard Trotta
895
* Richard finished HGCer calibrations, he concluded that the online parameters are sufficient
896
** He also has been looking at SHMS calorimeter calibrations but has had issues running the scripts. Most likely a pathing issue.
897
** The "tasks":https://redmine.jlab.org/projects/kltexp/wiki/Analysis_Tasks page has been updated with a section for efficiencies. 
898
*** A PID efficiency script is currently being developed and hopefully should have some plots for our next meeting.
899
900 75 Richard Trotta
----
901 74 Richard Trotta
902 111 Richard Trotta
h3. Nov 26,2019
903 71 Richard Trotta
904
*Links to talks->* "Richard":https://redmine.jlab.org/issues/480
905
906
* Stephen
907
** DC SHMS, small-angle has poor performance
908
*** Tighter cuts or PID (currently only looks for electrons)
909
** Vardan said calorimeter wiggles are an ongoing issue with no current solution
910
911
* Richard
912 1 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.
913 71 Richard Trotta
*** Richard will pick up looking at the HGCer calibrations from Vijay's scripts. 
914
*** Richard will also be looking at the SHMS calorimeter and with the suggestion of getting some negatively polarized SHMS runs from Hem.
915
** The HMS Cherenkov is finished with the conclusion that the calibrations from the online runs are good
916
** We can begin looking forward towards efficiencies. 
917
*** Garth suggested that looking at PID may be an advantageous first steps. Precise definitions of these PIDs will need to be logged.
918
*** Clear notes on efficiencies steps will be needed. They will need to be redefined multiple times in multiple ways. 
919
920
* Hem
921
** Has been looking at the calorimeter as well. 
922 70 Richard Trotta
** 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.  
923
924
----
925
926 111 Richard Trotta
h3. Nov 19,2019
927 1 Richard Trotta
928 70 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
929
930
* Richard
931
** Finished up TDC cut paper going through the procedure (found "here":https://redmine.jlab.org/issues/500)
932
** Needed to add Carlos pre-trigger designs to an appendix for the paper which clarifies the introduction section
933
934
* Stephen
935
** Issues with DC calibration for only a few runs during each run period
936
** "wiggles" in HMS calorimeter calibrations for some runs
937
*** few runs where HMS cal totally failed (which was dependent on initial parameters)
938
*** Spring looked worse than the rest (surprisingly), but this may be because online calibration wasn't great
939
940 2 Richard Trotta
----
941 68 Richard Trotta
942 111 Richard Trotta
h3. Nov 5,2019
943 68 Richard Trotta
944
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500
945
946
* Timing update (Stephen)
947
** Reference times between Richard and Stephen are very similar and the GitHub is updated accordingly
948
** Richard is going to add the trigger time cuts once the fall runs are finished (by end of week)
949
** First pass of detector reference time parameter files finished
950 1 Richard Trotta
951 68 Richard Trotta
* Peter's hcana code (Richard and Stephen)
952
** 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
953
*** Richard has emailed Peter about the issue with no response yet (follow-up soon)
954
** 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.
955
956
* Calibrations were decided to be done once per shift
957
958
* Next meeting schedule...
959 127 Richard Trotta
** Small meetings Nov 12 and Nov 19 (at 3pm EST) so Richard and Stephen can iron out the timing and calibrations
960
** November 26 (at 3pm EST) will be a larger meeting. 
961 68 Richard Trotta
*** This is the rough deadline we made for finishing up calibrations. 
962
*** 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!!
963
964
----
965
966 111 Richard Trotta
h3. Oct 22,2019
967 62 Richard Trotta
968 64 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
969 62 Richard Trotta
970 65 Richard Trotta
* SHMS Reference Time Amplitude Cuts(Stephen)
971
** Extra peaks in HG from cross-talk and "ghost-bands" due to ADC screw up
972
*** cuts applied on SHMS ADC ref time amplitude (greater than zero) done before any further event selection and histogram filling
973
** This is a temporary fix to "ghost-bands" and cross talk
974
*** Although for HG there is still a small peak. The hodoscope is fine.
975
** The time window is easier to set now.
976
** DC has been fine (since it uses TDC)
977
*** DC calibrations should be good to complete, other detectors need more fixes (i.e. the remaining "ghost-band")
978
** Hodoscope still bad but this might be because of that "ghost-band", needs to be further investigated
979
980 1 Richard Trotta
* Peter's hcana fixes for reference time (Richard)
981 67 Richard Trotta
** Peter implemented changes to hcana
982
** Two major issues...
983 1 Richard Trotta
## Amplitude goes to null and integral is low or negative which causes a rate-dependent efficiency. 
984 67 Richard Trotta
*** Peter has used the average pulse value acquired over a large sample of runs for each detector. 
985 1 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)
986 67 Richard Trotta
*** Peter created a routine to find the best offset by means of matching TDC and ADC
987
** Richard has been checking for bugs in the code. 
988
*** It seems to be ready to implement, Richard emailed Peter for confirmation on the implementation in our group directory
989
990 1 Richard Trotta
* Calibration of HMS detectors when the timing is agreed upon by Stephen and Richard.
991 67 Richard Trotta
** Besides hodoscope which still has an issue with the script
992 65 Richard Trotta
** Stephen and Richard are having a meeting late next week to determine time window values
993 62 Richard Trotta
*** These will be relatively final, but on the wider side if adjustments need to be made in the future
994
995 1 Richard Trotta
-----
996 61 Richard Trotta
997 111 Richard Trotta
h3. Sep 24,2019
998 61 Richard Trotta
999
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
1000 1 Richard Trotta
1001 61 Richard Trotta
-----
1002 1 Richard Trotta
1003 111 Richard Trotta
h3. Sep 10,2019
1004 59 Vijay Kumar
1005
*Links to talks->* "Stephen":https://redmine.jlab.org/documents/69 "Ali":https://redmine.jlab.org/documents/72 "Richard":https://redmine.jlab.org/issues/500
1006 1 Richard Trotta
1007
-----
1008 55 Stephen Kay
1009 111 Richard Trotta
h3. August 26, 2019
1010 55 Stephen Kay
1011
*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
1012 1 Richard Trotta
1013 54 Richard Trotta
----
1014
1015 111 Richard Trotta
h3. June 21, 2019
1016 54 Richard Trotta
1017 1 Richard Trotta
*Links to talks->* "Hallc Talk Outline":https://redmine.jlab.org/documents/60 
1018 54 Richard Trotta
1019 42 Stephen Kay
----
1020
1021 111 Richard Trotta
h3. June 14, 2019
1022 1 Richard Trotta
1023 46 Richard Trotta
*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
1024 42 Stephen Kay
1025
1026 35 Stephen Kay
----
1027 1 Richard Trotta
1028 111 Richard Trotta
h3. June 4, 2019
1029 36 Vijay Kumar
1030 1 Richard Trotta
*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
1031 35 Stephen Kay
1032 1 Richard Trotta
1033 35 Stephen Kay
----
1034 1 Richard Trotta
1035 111 Richard Trotta
h3. May 21, 2019
1036 1 Richard Trotta
1037
*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
1038 35 Stephen Kay
1039
----
1040 1 Richard Trotta
1041 111 Richard Trotta
h3. May 14, 2019
1042 1 Richard Trotta
1043 35 Stephen Kay
*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
1044 1 Richard Trotta
1045 35 Stephen Kay
----
1046 1 Richard Trotta
1047 111 Richard Trotta
h3. April 30, 2019
1048 1 Richard Trotta
1049
*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
1050 35 Stephen Kay
1051 1 Richard Trotta
----
1052
1053
h3. February 4, 2019
1054
1055
*Links to talks->* "Richard":https://redmine.jlab.org/documents/43 "Stephen":https://redmine.jlab.org/documents/44
1056
1057
----
1058 113 Richard Trotta
1059 112 Richard Trotta
h2. 2018 Meetings
1060 141 Stephen Kay
1061
----
1062 111 Richard Trotta
1063
h3. August 21, 2018
1064
1065 1 Richard Trotta
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
1066 35 Stephen Kay
1067 1 Richard Trotta
----
1068 35 Stephen Kay
1069 111 Richard Trotta
h3. August 8, 2018
1070 35 Stephen Kay
1071
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
1072 1 Richard Trotta
1073
----
1074 35 Stephen Kay
1075 111 Richard Trotta
h3. August 3, 2018
1076 1 Richard Trotta
1077 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383
1078
*Links to talks->*
1079 1 Richard Trotta
1080 35 Stephen Kay
----
1081 1 Richard Trotta
1082 111 Richard Trotta
h3. July 11, 2018
1083 1 Richard Trotta
1084 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383 #384
1085 1 Richard Trotta
1086 35 Stephen Kay
*Action items:*
1087 1 Richard Trotta
1088 35 Stephen Kay
* Update run plan, e.g. add prescales (Garth)
1089
* Check on details of: magnet cycling procedure, minimum angles, MCC fringe field steering, beam energy measurements, optics checks (Tanja)
1090
* Identify additional run coordinators (Tanja)
1091
* Encourage collaborators to take shifts, e.g. FIU (Pete)
1092
* Draft email about shifts etc. to collaboration (Tanja)
1093
* Develop diagnostic scripts and kaonLT specific (Richard, Ryan)
1094
* Continue documentation development, e.g. checklist, shift taker instructions, HowTo or link to generic Hall C HowTo, task list, web page (Richard, Garth)
1095 1 Richard Trotta
1096 35 Stephen Kay
*Discussions:*
1097
1098
* 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
1099
* HGC: waiting for re-installation
1100
* Trigger checkout: main items to keep in mind: fADC thresholds, timing HMS/SHMS - leading arm, possible rate limitations
1101 1 Richard Trotta
* Shifts
1102
* Diagnostics scripts and documentation
1103
* Personnel schedules
1104
1105
----
1106
1107 111 Richard Trotta
h3. June 28, 2018
1108 1 Richard Trotta
1109
*Links to talks->* "Richard":https://redmine.jlab.org/documents/34
1110
1111
*Action Items:*
1112
1113
* Develop and post shift schedule. Send out request. Find out who is KAONLT liaison (Tanja)
1114
* Contact potential run coordinators. (Tanja)
1115
* Aerogel tray exchange for start of experiment and coordination of future exchanges (Vladimir)
1116
* Update runplan and prepare documents needed for shift crew, e.g. run sheets (Garth)
1117
* Set up a web page to collect and link from Redmine - How-To documents, initial calibrations, etc. (Garth, Richard)
1118
* 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)
1119
* Develop trigger/detector checkout plan (Tanja, initial draft)
1120
** Are all experts available at run start, experts needed: coincidence timing , Harp Scans, BCM calibrations, ...
1121
* 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)
1122
* Find out if all aerogel trays needed for experiment can be stored inside Hall C to avoid having to open truck ramp (Vladimir)
1123
1124
*Analysis Updates:*
1125
1126
* Ryan 
1127
** resolving differences between his analysis and Richard's
1128
1129
* Richard
1130
** 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
1131
** 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.
1132
1133
----
1134
1135 111 Richard Trotta
h3. May 31, 2018
1136 1 Richard Trotta
1137 35 Stephen Kay
*Links to talks->* "Samip":https://redmine.jlab.org/documents/30
1138 1 Richard Trotta
1139 35 Stephen Kay
----
1140 1 Richard Trotta
1141 111 Richard Trotta
h3. May 17, 2018 
1142 1 Richard Trotta
1143 35 Stephen Kay
*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
1144 2 Richard Trotta
1145 35 Stephen Kay
* Luminosity scans (Richard, Ryan)
1146 111 Richard Trotta
** Carbon scan from April seems consistent with no boiling, LH3 and LD2 show deviation from unity, should check effect of EDTM events on efficiencies
1147 35 Stephen Kay
** 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
1148
** discussion about pre-scale factors
1149 1 Richard Trotta
1150 35 Stephen Kay
* Discussion about Richard's script extracting and printing information from report files and trees including histograms
1151
** Add option for looking at yields with cuts on cointime, target window, and missing mass
1152
** Add option to look at real peak vs. background level
1153 1 Richard Trotta
1154 35 Stephen Kay
* H(e,e'p) kinematics investigation for fall run (Samip)
1155
** 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
1156 1 Richard Trotta
1157 35 Stephen Kay
* *Action Items*
1158
** Luminosity scans at low rates from January (Richard)
1159
** Luminosity scans from April with corrected efficiencies, e.d. DT (Ryan)
1160
** H(e,e'p) and H(e,e') kinematics for upcoming Kaon LT run (Samip)
1161
** Kaon LT detailed run plan (Garth, Pete, Tanja)
1162
** Preparations, e.g. report files, diagnostic histograms and real time monitoring, shift worker instructions, optimization of trees (all)
1163 1 Richard Trotta
1164
----
1165
1166 111 Richard Trotta
h3. May 10, 2018
1167 35 Stephen Kay
1168 2 Richard Trotta
*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
1169 35 Stephen Kay
1170
* Luminosity Scans January 2018 (Richard)
1171
** Tracking-based analysis for Runs 1415-1423, .. for now focus on HMS, typical HMS S1X rates are <
1172
** Cuts applied: PID for electrons (Cer, Cal), acceptance (delta)
1173
** Efficiency calculation was investigated in detail and applied using scalers from trees
1174
** Results for carbon (normalized to 30uA) show large variation - need to understand
1175
** *Next steps:*
1176
*** Double check calculation of computer lifetime, look for differences in TRIG and PRETRIG scalers
1177
*** Check stability of pre-scale (Ryan saw changes within runs)
1178
*** Check if detector calibrations for runs are implemented correctly
1179
*** Analyze with Ryan's cuts
1180 1 Richard Trotta
1181 35 Stephen Kay
* Luminosity Scans April 2018 (Ryan)
1182
** Confirms Richard's earlier finding that scaler-based analysis is not reliable and that it's best to analyze event-by-event
1183
** Tracking-based analysis for runs 2073-2095
1184
** Cuts applied: PID for electrons (TOF, Cal, Chi2), acceptance (delta and angles), BCM4a
1185
** Included most recent detector calibrations in replay of these runs
1186
** Efficiencies from report file mainly, may need to update tracking efficiency implementation
1187
** Found that calculations of computer deadtime requires different set of scalers for runs from January to those from April 2018
1188
** Results show carbon yields consistent with unity within error (0.5% error bars), and boiling for hydrogen and deuterium
1189
** *Next steps:*
1190 5 Richard Trotta
*** Check tracking efficiency
1191 35 Stephen Kay
1192
* *Global comments on Luminosity Scans (so far)*
1193 1 Richard Trotta
** 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.
1194 35 Stephen Kay
** Efficiencies in report files need to be updated, e.g. CPU deadtime (Richard)
1195
** Check if BCM4a is the one closest to the target - get a map of the hall (Richard, Ryan)
1196
** Uncertainties on current
1197
** Detector calibrations
1198 1 Richard Trotta
** HMS vs. SHMS
1199 35 Stephen Kay
1200
* eK+ coincidence time from SIDIS Spring 2018 run (Samip)
1201
** Worked with Mark Jones on coincidence time calculation - now available in hcana (see Samip's 10 May 2018 email for more details)
1202
** runs used in this analysis: 3423 with Q2=3.1 GeV2 and W=2.78 GeV
1203
** Coincidence time spectrum shows peak separations >2 ns corresponding to different accelerator frequency
1204
** Missing mass spectra: Kaon peak clearly visible, also see pions even after cuts
1205
** Found that pions appear localized in phase space - seems to be due to end point in kinematic phase space
1206 1 Richard Trotta
** *Next steps:*
1207 2 Richard Trotta
*** Look for a run with kaon momentum closer to 3 GeV/c (aerogel threshold is ~3 GeV/c for kaons for n=1.015)
1208 35 Stephen Kay
1209
* Yield normalized ratios from SIDIS (Hem)
1210
** Yield ratios of data to MC match well in shape, but normalization seems not quite right
1211
** *Next steps:*
1212 4 Richard Trotta
*** Check if efficiencies, currents, run time etc. are taken into account correctly
1213
1214
----
1215 35 Stephen Kay
1216 111 Richard Trotta
h3. April 26, 2018
1217 4 Richard Trotta
1218 35 Stephen Kay
*Links to talks->* "Richard,":https://redmine.jlab.org/documents/18 "Ryan, ":https://redmine.jlab.org/documents/20 "Samip":https://redmine.jlab.org/documents/25
1219 4 Richard Trotta
1220 35 Stephen Kay
* Discussion luminosity scan analysis (earlier scan) - Richard
1221
** 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
1222
** Notes on efficiencies in report file:
1223
*** DT (EDTM) is not electronic deadtime. Instead use for now 50ns* trigger rate for HMS and 100ns* trigger rate for SHMS
1224
*** Cherenkov efficiency seems low (check if that is due to PID, thresholds, pi/e, etc)
1225
*** Tracking efficiency needs to be checked
1226
*** 3/4 trigger efficiency seems ok
1227
* Discussion luminosity scan analysis (later scan) - Ryan
1228
** Fewer carbon runs than earlier scan
1229
** Shown is a tracking-based analysis using data from the ROOT trees
1230 111 Richard Trotta
** First results for carbon, LH3, and LD2, but efficiencies need to be checked
1231 35 Stephen Kay
* SIDIS analysis - Hem
1232
** Shown is a data/MC comparison for different kinematic settings. Agreement in shape is very good. Normalization has yet to be applied.
1233
** Discussion about agreement in z and apparent offset - relation of this offset with spectrometer offset
1234
* Analysis of exclusive events in SIDIS - Samip
1235
** Shown is a look at the first kaon events in exclusive limit of SIDIS data
1236
** Ongoing work on implementing coincidence time into tree
1237
* Discussion of run plan, and in particular possible low Q2/low energy
1238
** Assume that kaon low Q2=0.4 already included - have kinematics with specified beam energies, if needed
1239
** 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
1240
** Garth will put this together in a draft email
1241
1242 12 Richard Trotta
----
1243
1244 111 Richard Trotta
h3. March 29, 2018
1245 12 Richard Trotta
1246 35 Stephen Kay
*Links to talks->* "Richard, ":https://redmine.jlab.org/documents/16 "Samip":https://redmine.jlab.org/documents/27
1247 13 Richard Trotta
1248 35 Stephen Kay
* Details of adding points to fall run plan - will be ready sooner, likely in week of 4/1 (Garth, Samip, Tanja)
1249
* Luminosity scans (Ryan, Andres, Richard, Pete)
1250
* Macros, SIDIS analysis (Hem, Anashe)
1251
* Elastic data (TBD)
1252
1253 14 Richard Trotta
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1254 18 Richard Trotta
1255 111 Richard Trotta
h3. February 22, 2018
1256 18 Richard Trotta
1257 35 Stephen Kay
*Links to talks->* "Andres":https://redmine.jlab.org/documents/19
1258 18 Richard Trotta
1259 35 Stephen Kay
*  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.
1260
* Brief description of Samip's work - working on coincidence timing decoding with JLab staff and re-optimization of kinematics
1261
* Discussion of Richard's slides on run plan kinematics and preparations -
1262
** 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
1263
** 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
1264
** for each setting will need 1-2 shifts for calibrations - need to negotiate with other experiments in run group
1265
** kinematics plots W-Q2 show that still need to do some optimization
1266
** run sheets: include raster size, update coincidence count labeling, and carbon target labeling
1267
* Discussion of next meeting. Garth at JLab 8-16 March - might have meeting during that time.
1268 26 Richard Trotta
1269 35 Stephen Kay
* *Action Items:*
1270
** Post slides/notes from this meeting and procedure to set up hcana in Redmine (Tanja)
1271
** Update run sheet and kinematic optimization for W/Q2 (Garth)
1272
** Circulate elastic calculations for kinematic settings (Samip)
1273
** Continue investigation of elastic data and run plan kinematics (Andres/Richard)
1274
** Test software installation instructions (Pete)
1275
** 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) 
1276 32 Stephen Kay
1277
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