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Kaon LT Meetings » History » Version 482

Richard Trotta, 02/09/2023 05:45 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
11 478 Richard Trotta
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12
13 481 Ali Usman
h3. Feb 9, 2023
14
15
* Ali
16
** attachment:KaonLT_Meeting_Feb_09.pdf
17
** HMS Cerenkov and Calorimeter Study for different kinematics settings.
18
19 478 Richard Trotta
* Richard
20
** attachment:KaonLTMeeting2_9_23.pdf
21
** Fixed the odd right distribution for Q2=5.5 by applying more strict cointime cuts.
22 479 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.
23 326 Garth Huber
24 405 Vijay Kumar
---
25 1 Richard Trotta
26 474 Vijay Kumar
h3. Feb 2, 2023
27
28 476 Garth Huber
* Garth/Stephen Notes attachment:mtg_23feb02.txt
29 475 Richard Trotta
* Richard
30
** attachment:KaonLTMeeting2_2_23.pdf
31
** The simc portion of the LT_analysis code is working but there is a bug I am sorting out which produces incorrect plots
32
** 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.
33
** 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.
34 474 Vijay Kumar
* Vijay
35
** Update from the analyzed low epsilon data of Q2 = 0.38 GeV2. attachment:KaonLT_meeting_Feb2_2023.pdf
36 477 Alicia Postuma
* Alicia
37
** Preliminary asymmetry results: Q2=3/W=2.32, Q2=4.4/W=2.74, Q2=2.115/W=2.95, aluminum
38
** attachment:Asymmetry_Postuma_Feb2.pdf
39
40 474 Vijay Kumar
41
---
42
43 469 Richard Trotta
h3. Jan 26, 2023
44
45 473 Garth Huber
* Stephen's Notes attachment:mtg_23jan26.txt
46 469 Richard Trotta
* Richard
47
** attachment:KaonLTMeeting1_26_23.pdf attachment:FullAnalysis_Q5p5W3p02_highe.pdf
48
** 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.
49
** SIMC vs Data plots for Q2=5p5 show a very small SIMC. Need to investigate further.
50 470 Nathan Heinrich
* Nathan
51
** attachment:RefTimes_Update_2023-01-26.pdf 
52
** Asked Carlos Yero about the cointime ref times, he sent me an older email chain attachment:ref_times_email_exchange.txt
53
*** only SHMS variables are used.
54
** Presented ref times plots, and suggested cuts.
55 471 Nathan Heinrich
*** Cuts are already set up and pull request is sent to LTSep_Analysis_2022 branch
56
57 469 Richard Trotta
---
58
59 458 Richard Trotta
h3. Jan 19, 2023
60
61 467 Garth Huber
* Garth/Stephen Notes  attachment:mtg_23jan19.txt
62 462 Ali Usman
* Ali
63
** Looking at HMS Calorimeter and Cherenkov Efficiency and PID. attachment:KaonLT_Meeting_Jan_19.pdf
64 460 Vijay Kumar
* Vijay
65
** attachment:Vijay_Jan19_2023.pdf
66
** Trying to understand the pion cross-section across the acceptance. 
67 464 Alicia Postuma
* Alicia
68
** attachment:Asymmetry_Postuma_Updates-6.pdf
69
** Added dummy target subtraction to asymmetry calculation
70
** Discussed fitting to extract cross-section ratio
71
** Requested: details on error calculations: attachment:Asymmetry_Errors.pdf
72 458 Richard Trotta
* Richard
73
** attachment:KaonLTMeeting1_19_23.pdf
74
** Implemented Jacob's diamond cut script into the setup before Bill's code. This also does the t-binning as well.
75
** 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.
76 461 Nathan Heinrich
* Nathan
77 468 Garth Huber
** Started working on reference times
78 461 Nathan Heinrich
** has some extra peaks in some runs
79
*** Should be explained by the triggers on in each run
80 1 Richard Trotta
** attachment:RefTimes_Update_2023-01-19.pdf
81 468 Garth Huber
82
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83 458 Richard Trotta
84 453 Ali Usman
h3. Jan 4, 2023
85
86 457 Garth Huber
* Garth's Notes attachment:mtg_23jan04.txt
87 453 Ali Usman
* Ali
88
** attachment:Jan4_KLT_Meeting.pdf
89 1 Richard Trotta
** All Kaon_LT data has been replayed over the holidays. Slide show list of major changes for the replay.
90 458 Richard Trotta
91
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92 459 Richard Trotta
93 458 Richard Trotta
h2. 2022 Meetings
94 454 Ali Usman
95 453 Ali Usman
---
96
97 450 Richard Trotta
h3. Dec 21, 2022
98
99 457 Garth Huber
* Garth/Stephen Notes attachment:mtg_22dec21.txt
100 450 Richard Trotta
* Richard
101 451 Richard Trotta
** attachment:KaonLTMeeting12_21_22.pdf
102 450 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. 
103
** 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.
104
105
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106
107 449 Garth Huber
h3. Dec 14, 2022
108
109 457 Garth Huber
* Garth/Stephen Notes attachment:mtg_22dec14.txt
110 449 Garth Huber
111
---
112
113 442 Richard Trotta
h3. Dec 7, 2022
114 440 Ali Usman
115 457 Garth Huber
* Garth/Stephen Notes attachment:mtg_22dec07.txt
116 440 Ali Usman
* Ali
117 442 Richard Trotta
** New error calculation (binomial) for efficiencies and Live Times. attachment:KaonLT_Dec_5.pdf
118 443 Richard Trotta
* Richard
119 446 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
120 443 Richard Trotta
** A new subroutine has been added for the hcana variable calculations in SIMC, this is ongoing.
121
** 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.
122
** 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.
123 448 Alicia Postuma
* Alicia: attachment:Asymmetry_Postuma_Dec07.pdf
124 440 Ali Usman
125
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126
127 439 Garth Huber
h3. Nov 30, 2022
128
129
* Garth/Stephen Notes attachment:mtg_22nov30.txt
130
131
---
132
133 437 Garth Huber
h3. Nov 23, 2022
134
135
* Garth/Stephen Notes attachment:mtg_22nov23.txt
136 438 Alicia Postuma
* Alicia asymmetry update attachment:Asymmetry_Postuma_Updates.pdf
137 437 Garth Huber
138
---
139
140 424 Richard Trotta
h3. Nov 16, 2022
141
142 435 Garth Huber
* Garth/Stephen Notes attachment:mtg_22nov16.txt
143 424 Richard Trotta
* Richard
144 428 Richard Trotta
** "8p2 LH2":https://redmine.jlab.org/attachments/1684 "8p2 C":https://redmine.jlab.org/attachments/1685
145
** "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
146 424 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.
147
** 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.
148
** I found a script for raster calibrations. The script is being fixed as it is currently a bit of a mess.
149 429 Richard Trotta
** https://redmine.jlab.org/projects/kltexp/wiki/Hall_C_Raster_Algorithm
150 430 Stephen Kay
* Stephen
151
** Updates to the hcana RFTime class
152
** Added in particle dependent corrections for e/pi/K/p for each spectrometer
153
*** Calculate beta for each particle type (from momentum, delta)
154
*** Determine path length from xptar and delta
155
*** Calculate ToF
156
*** Add this in modulo that determines RFtime
157
*** Tried method Shuo used initially, didn't really do anything
158
** Some further updates needed before it will be pushed to the hallc repo
159 433 Stephen Kay
** "Slides":https://redmine.jlab.org/attachments/1694 
160
** "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 
161
** "RF correction simply the ToF added in the modulo fn, seems to work":https://redmine.jlab.org/attachments/1695
162 436 Garth Huber
* Vijay (presented by GH)
163
** low Q2 attachment:CPULT_lowQ2.png attachment:TLT_lowQ2.png attachment:ELT_lowQ2.png
164 424 Richard Trotta
165
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166
167 420 Vijay Kumar
h3. Nov 09, 2022
168
169 421 Garth Huber
* Garth/Stephen Notes attachment:mtg_22nov09.txt
170 422 Garth Huber
* Bill (Wenliang) Li L/T-separation code tutorial.
171 423 Garth Huber
** Video recording is posted at: http://lichen.phys.uregina.ca/~huberg/kaon/LT_tutorial_20221109_1920x1080.mp4
172 420 Vijay Kumar
* Vijay
173
** 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 
174
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176
177 405 Vijay Kumar
h3. Nov 2, 2022
178
179 416 Garth Huber
* Garth/Stephen notes attachment:mtg_22nov02.txt
180 405 Vijay Kumar
* Vijay
181 406 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.
182 1 Richard Trotta
attachment:Vijay_REYIELD_2p7C.pdf 
183 419 Vijay Kumar
  
184 411 Ali Usman
* Ali
185
** 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.
186 412 Ali Usman
attachment:KaonLT_Meeting_Nov_2.pdf
187 418 Jacob Murphy
* Jacob
188
** 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.
189
attachment:HMS_Optimization_at_High_Momentum.pdf
190 413 Richard Trotta
* Richard
191 427 Richard Trotta
** "6p2 C":https://redmine.jlab.org/attachments/1658 "6p2 LH2":https://redmine.jlab.org/attachments/1659
192 426 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
193 413 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%.
194
** 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.
195
** 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.
196
197 405 Vijay Kumar
 
198 325 Garth Huber
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199 346 Richard Trotta
200 403 Garth Huber
h3. Oct 26, 2022
201
202
* DaveG notes attachment:mtg_22oct26.txt
203
204
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205
206 402 Garth Huber
h3. Oct 19, 2022
207 1 Richard Trotta
208 402 Garth Huber
* Garth/Stephen notes attachment:mtg_22oct19.txt
209 401 Richard Trotta
* Richard
210
** The trend in the SHMS track yields is still present in the positive polarity luminosity runs.
211
** Talk for the Hall C Quarterly meeting was discussed. 
212
213
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214
215 400 Garth Huber
h3. Oct 12, 2022
216
217
* Garth/Stephen notes attachment:mtg_22oct12.txt
218
219
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220
221 397 Richard Trotta
h3. Oct 4, 2022
222
223 399 Garth Huber
* Garth/Stephen notes attachment:mtg_22oct05.txt
224 397 Richard Trotta
* Richard
225
** attachment:KaonLTMeeting10_4_22.pdf
226
** 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.
227
*** It should be noted, there are huge discrepancies between BCM4A and BCM1 in some cases (like 20+ uA).
228
** Ran into some issues with the cross-section code. I am in debug mode trying to find the cause.
229
** 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.
230
231
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232
233 393 Garth Huber
h3. Sept 28, 2022
234
235 394 Garth Huber
* Garth/Stephen notes attachment:mtg_22sep28.txt
236
* Jacob
237 396 Jacob Murphy
** HMS optics fitting - attachment:HMS_Optics_Calibrations_Update.pdf
238 394 Garth Huber
239 393 Garth Huber
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240
241 382 Garth Huber
h3. Sept 21, 2022
242
243 392 Garth Huber
* Garth/Stephen notes attachment:mtg_22sep21.txt
244 389 Richard Trotta
* Richard
245
** attachment:Yield_6p2cl1.pdf attachment:Yield_10p6cl2.pdf attachment:Yield_10p6cl1.pdf
246
** 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.
247 390 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.
248
* Ali
249
** attachment:Ali_Sep21_Analysis.pdf
250 391 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.
251 389 Richard Trotta
252 382 Garth Huber
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253
254 379 Garth Huber
h3. Sept 8, 2022
255
256 382 Garth Huber
* Garth/Stephen Notes attachment:mtg_22sep08.txt
257 383 Ali Usman
* Ali
258
** attachment:Sep8_Analysis.pdf
259 386 Ali Usman
** Heep Coin Analysis update. Fixed the issue with emiss and pmiss. Includes number of debug tests.
260 384 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
261 387 Ali Usman
** Full analysis files are the latest data/simc comparison for different beam energies (No offsets applied yet) 
262 380 Richard Trotta
* Richard
263
** attachment:KaonLTMeeting9_8_22.pdf
264 381 Richard Trotta
** attachment:Yield_6p2_l1_all.pdf attachment:Yield_10p6_l1_all.pdf attachment:Yield_10p6_l2_all.pdf
265 380 Richard Trotta
** Improved total uncertainties
266
** In-depth with tracking cut analysis underway
267
** Poor TLT consistent with poor CPULTs
268
269 379 Garth Huber
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270
271 371 Garth Huber
h3. Aug 31, 2022
272
273 379 Garth Huber
* Garth/Stephen Notes attachment:mtg_22aug31.txt
274 378 Richard Trotta
* Richard
275
** attachment:KaonLTMeeting8_31_22.pdf
276
** 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.
277
** Uncertainties for the luminosities and heep are next up.
278
279 371 Garth Huber
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280
281 374 Garth Huber
h3. Aug 26, 2022
282 1 Richard Trotta
283 375 Garth Huber
* Meeting on L/T-separation procedure
284 374 Garth Huber
** Garth's slides attachment:LT_sep_iterations.pdf
285
** Bill's tutorial (Nov 2018) attachment:Kaon_LT_tutorial_18nov28.pdf
286 377 Garth Huber
** Stephen's notes attachment:LTsep_mtg_22aug26.txt
287 395 Garth Huber
** Recording of Sept 27 repeat at: http://lichen.phys.uregina.ca/~huberg/kaon/LT_tutorial_20220927_1920x1080.mp4
288 373 Garth Huber
289
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290 372 Garth Huber
291 366 Garth Huber
h3. Aug 17, 2022
292 368 Vijay Kumar
293 371 Garth Huber
* Garth/Stephen Notes attachment:mtg_22aug17.txt
294 367 Vijay Kumar
* Vijay
295 369 Vijay Kumar
** The summary of the Heepcheck study is attached here. attachment:Vijay_Aug17_2022.pdf 
296 367 Vijay Kumar
** 3.6 and 3.9 GeV data do NOT have the angle offsets. This has been established in the study.
297 370 Richard Trotta
** I've plotted the offsets vs SHMS central momentum. Plots are attached in the attached pdf file.
298
* Richard
299
** The 10.6 GeV heep analysis is going well but the broad momentum distributions are making offsets difficult at times.
300
** 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. 
301
** 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.
302
** attachment:FullAnalysis_Offset_10p6.pdf
303
** attachment:HcanavSimc_scatter_calc.pdf
304 367 Vijay Kumar
 
305 366 Garth Huber
306
---
307
308 354 Garth Huber
h3. Aug 4, 2022
309
310 365 Garth Huber
* Garth/Stephen Notes attachment:mtg_22aug04.txt
311 363 Vijay Kumar
* Vijay
312
** 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  
313 362 Richard Trotta
* Richard
314
** attachment:KaonLTMeeting_8_4_22.pdf
315
** HeeP coin for 10p6 setting is looking pretty good. I still need to make some minor adjustments.
316
** TLT for Lumi is looking much better. The yields also are looking better but cut adjustments need to be made.
317
** HeeP singles have some odd issues that need to be resolved before offset analysis can begin.
318
** Hodoscope calibrations are all done except 6p2.
319 355 Garth Huber
320 354 Garth Huber
---
321
322 350 Richard Trotta
h3. July 14, 2022
323
324 353 Garth Huber
* Garth/Stephen Notes attachment:mtg_22jul14.txt
325 350 Richard Trotta
* Richard
326
** attachment:KaonLTMeeting7_14_22.pdf
327
** The W peaks for SIMC and data are very far offset from one another. This is being investigated.
328 1 Richard Trotta
* Vijay
329 350 Richard Trotta
** Heep Data MC comparo w/o offsets attachment:Heep_coin_no_offsets_vijay_22jul08.pdf
330 349 Garth Huber
331
----
332
333 344 Richard Trotta
h3. June 28, 2022
334
335 349 Garth Huber
* Garth/Stephen Notes attachment:mtg_22jun28.txt
336 344 Richard Trotta
* Richard
337
** Aerogel XY plots vs NPE to check out the tray location and efficiencies.
338
** Hodoscope and calorimeter scripts working. Hodoscope calibration looks good for 10p6 but needs improvement for other beam energies.
339
** HGCer efficiency and plots added to efficiency script. Need to discuss with Vijay on specifics of cuts and efficiencies.
340 1 Richard Trotta
** Started looking in detail at Bill's code. Some scripts and links are missing/broken.
341 348 Jacob Murphy
* Jacob
342
** EDTM Study Report completed, with newer versions of the TLT equations attachment:EDTM_Study_Report.pdf
343
** Graphical Guide for Event Types created to accompany the report, illustrating prescaling with EDTM attachment:Graphical_Guide_Evt_Type.pdf
344 347 Richard Trotta
** Plan to update report file template with new equations and errors soon
345 344 Richard Trotta
346
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347 282 Vijay Kumar
348 338 Garth Huber
h3. June 14, 2022
349
350 343 Garth Huber
* Garth's Notes attachment:efficiencies_22jun13.txt
351 342 Richard Trotta
* Richard
352
** Fixed issues with simc script and 10p6 Heepcoin data. Issue with data was an offset of 40ns that was corrected halfway through runs.
353
** Aerogel XY plots vs NPE to check out the tray location and efficiencies.
354
** Efficiency plots for all production runs.
355
** attachment:KaonLTMeeting6_14_22.pdf
356 338 Garth Huber
357
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358
359 1 Richard Trotta
h3. May 31, 2022
360 330 Garth Huber
361
* Garth and Stephen's Notes attachment:mtg_22may31.txt attachment:efficiencies_22jun02.txt
362 340 Garth Huber
* Vijay 
363 332 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 .
364 334 Ali Usman
* Ali
365 355 Garth Huber
** First look at the HEEP COIN Data/SIMC comparison for the 8.2 GeV Kaon-LT data attachment:KaonLT_May31.pdf
366 332 Vijay Kumar
367 314 Garth Huber
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368
369
h3. May 17, 2022
370
371 325 Garth Huber
372 331 Garth Huber
* Garth and Stephen's Notes attachment:mtg_22may17.txt attachment:efficiencies_22may25.txt
373 318 Richard Trotta
* Richard
374
** Updated heep coin scripts for the farm. Ali is testing them and should be able to get plots soon.
375
** There was a small typo in the simc input file that dramatically changed the shape of the plots. attachment:KaonLTMeeting5_17_22.pdf
376
** Updated version of efficiency columns for the script that will grab efficiencies and various other values. attachment:efficiency_output_list.docx
377 316 Vijay Kumar
* Vijay 
378
** The updated heep coin study (some spectrometers offsets changed) at 3.9 GeV KaonLT data is attached here attachment:Vijay_KaonLT_meeting.pdf .
379 317 Vijay Kumar
380 314 Garth Huber
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381
382 299 Garth Huber
h3. May 3, 2022
383 303 Vijay Kumar
384 315 Garth Huber
* Garth and Stephen's Notes attachment:mtg_22may03.odt  attachment:efficiencies_22may03.odt
385 308 Ali Usman
* Ali
386
** Fixed all the settings for high Q2 KaonLT data. Also slide on accessing spectrometer angles from CODA
387
** attachment:KaonLT_May_3.pdf
388 309 Richard Trotta
* Richard
389 312 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
390 302 Vijay Kumar
* Vijay 
391 304 Vijay Kumar
** The SIMC simulation study of the PinoLT data at Q2 = 0.38 and 0.42 GeV2 has completed (preliminary) for all settings.
392 305 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 .
393 299 Garth Huber
394 300 Garth Huber
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395
396 296 Vijay Kumar
h3. April 19, 2022
397 299 Garth Huber
398
* Garth's Notes attachment:mtg_22apr19.txt
399 1 Richard Trotta
* Vijay 
400 296 Vijay Kumar
** SIMC simulation updates at Q2 = 2.7, 3.6 and 4.5 GeV2. attachment:Vijay_KaonLT_Meeting_Apr19_2022.pdf  
401 298 Vijay Kumar
402 296 Vijay Kumar
----
403
404
h3. April 06, 2022
405 306 Vijay Kumar
406 355 Garth Huber
* Garth's Notes attachment:mtg_22apr06.txt
407 306 Vijay Kumar
* Ali 
408 293 Garth Huber
**  attachment:Analysis_Update_Apr_6.pdf 
409 290 Richard Trotta
* Richard 
410
** attachment:KaonLTMeeting4_6_22.pdf
411 288 Richard Trotta
** The analysis of the 10.6 GeV heep coin/singles settings are still ongoing. 
412
** There were some issues getting the replays working for the singles runs and the analysis. Things finally were sorted out yesterday (and this morning).
413
** The SHMS heep singles are presented. Overall, they look fine. There are still some things to sort out.
414 291 Richard Trotta
** The HMS heep singles are still running.
415 282 Vijay Kumar
* Vijay 
416 306 Vijay Kumar
** The simulation study of the 4.9 GeV KaonLT data has completed.
417 288 Richard Trotta
** This energy has left, center and right settings data. All these settings look fine. 
418 295 Garth Huber
** See the pdf for more info. attachment:Vijay_KaonLT_Meeting_Apri_06_2022.pdf  
419 284 Vijay Kumar
420 1 Richard Trotta
----
421 284 Vijay Kumar
422 281 Richard Trotta
h3. March 23, 2022
423 1 Richard Trotta
424 281 Richard Trotta
* Garth's Notes attachment:mtg_22mar23.txt
425 1 Richard Trotta
* Richard 
426 278 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
427
** Heep singles are next up. There have been issues replaying these runs but Ali may have fixed this issue with his parameter file changes.
428 280 Nathan Heinrich
* Nathan
429
** 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.
430 278 Richard Trotta
** after changing back to 1 discrepancy resolved. Slides: attachment:Mode10Update_2022Mar23.pdf
431
432
---
433
434
h3. March 9, 2022
435
436
* Garth's Notes attachment:mtg_22mar09.txt
437 355 Garth Huber
* Regina March 4 meeting on pion leak through in (e,e'K+) analysis attachment:grp_22mar04.txt
438 267 Richard Trotta
* Richard 
439
** Vijay's scripts are working and Richard reproduced some of his previous plots. attachment:KaonLTMeeting3_9_22.pdf
440
** The next step is to do a full analysis of the 10.6 GeV heep coin/singles data.
441 1 Richard Trotta
* Nathan
442 277 Garth Huber
** Update on the current state of mode 10: attachment:Mode10Update_2022Mar9.pdf 
443
** See Mark Jones' slide on changes to hcana: https://redmine.jlab.org/attachments/1424
444 269 Richard Trotta
445 261 Garth Huber
---
446
447 271 Garth Huber
h3. February 23, 2022
448 273 Garth Huber
449 271 Garth Huber
* Garth's Notes attachment:mtg_22feb23.txt
450
451 272 Garth Huber
---
452
453 244 Vijay Kumar
h3. January 26, 2022  
454
455 271 Garth Huber
* Garth's Notes attachment:mtg_22jan26.txt
456 253 Vijay Kumar
* Vijay, Heep updates from the PionLT experiment. attachment:Analysis_Updates_Jan26_2022.pdf 
457 251 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   
458 252 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
459 246 Vijay Kumar
** The 3.6 and 4.5 GeV data do not have elastic data.
460 250 Vijay Kumar
** Coin: 2.7, 3.6 and 4.5 GeV. attachment:Analysed_2p7.pdf attachment:Analysed_3p6.pdf attachment:Analysed_4p5.pdf   
461 254 Nathan Heinrich
* Nathan, Short update on the Mode 10
462 255 Nathan Heinrich
** Short update. May need to update hcana to change software voltage threshold. attachment:2022-01-26NathanHeinrich.pdf
463 256 Jacob Murphy
* Jacob, EDTM Study 2
464 260 Jacob Murphy
** EDTM study with beam, taken during LUMI Scan 3
465 255 Nathan Heinrich
** Early look at 3rd EDTM Study
466 248 Vijay Kumar
** Additional notes on increased deadtime in SHMS at High Current. attachment:PionLT_EDTM_Study2_Analysis.pdf
467 113 Richard Trotta
468 222 Richard Trotta
----
469 200 Richard Trotta
470 236 Garth Huber
h3. January 12, 2022  
471
472
* Garth's Notes attachment:mtg_22jan12.txt
473
* Junaid
474
** PID study
475 240 Vijay Kumar
* Vijay
476 238 Vijay Kumar
** Heep-singles study attachment:Analysis_Updates1_Jan12.pdf 
477 236 Garth Huber
* Nathan
478
** Mode-10 data variables
479
480 243 Richard Trotta
----
481
482 234 Garth Huber
h3. January 5, 2022  
483
484 235 Garth Huber
* Garth's Notes attachment:mtg_22jan05.txt
485 221 Richard Trotta
* Stephen
486
** Stephen was updating GitHub but UTIL_BATCH has some permissions issues
487
* Richard
488
** Update to KLT task schedule
489
** Meeting between Richard and Vijay to discuss task breakdown Friday, January 7th at 11 am EST
490
** EDTM study 2 will done sometime this weekend
491 223 Richard Trotta
* Vijay
492
** Breakdown of HEEP single analysis for low Q2 data
493 224 Richard Trotta
*** Shapes of SIMC and data are very off
494
*** It seems to be a systematic issue on Vijay's part because the same issue is being seen in PLT data
495 231 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.  
496 229 Vijay Kumar
** https://redmine.jlab.org/attachments/1376
497 228 Vijay Kumar
** https://redmine.jlab.org/attachments/1375
498 225 Nathan Heinrich
* Nathan
499
** Update on fADC mode 10 studies and the fADC deadtime studies
500
** https://redmine.jlab.org/attachments/1372
501 226 Jacob Murphy
* Jacob
502
** Summary of EDTM analysis so far in the PionLT experiment
503 227 Jacob Murphy
** https://redmine.jlab.org/attachments/1373
504 242 Richard Trotta
505 221 Richard Trotta
----
506
507
h2. 2021 Meetings
508
509 220 Richard Trotta
h3. August 4, 2021
510
511
* Richard
512
** 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).
513
** Issues with the COIN are seen but may be a replay issue.
514
515
----
516
517 217 Richard Trotta
h3. July 21, 2021
518
519 218 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1250/KaonLTMeeting7_14_21.pdf
520 217 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.
521
522
----
523
524 215 Richard Trotta
h3. May 12, 2021
525
526
* Richard
527
** 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.
528
529
----
530
531 213 Richard Trotta
h3. April 28, 2021
532
533
* Richard
534 214 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.
535 213 Richard Trotta
536
----
537
538 211 Richard Trotta
h3. April 14, 2021
539 212 Richard Trotta
540 211 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_4_14_21.pdf
541
** 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). 
542
** Some PionLT carbon runs were looked at but there are still some issues (either cut or pathing related).
543
544
----
545
546 203 Richard Trotta
h3. March 31, 2021
547
548 206 Richard Trotta
* Richard
549 209 Richard Trotta
** Luminosity studies
550
*** PionLT carbon runs
551
**** Still having issues getting decent results. I think I am just missing a definition somewhere that I need to track down
552
*** Uncertainties
553
**** Easy to do, I just need to put it into my script
554
** Explicit PS calculations
555
*** I have gotten a rough script working for very simple runs (ie low rate, single spectrometer, calibration runs)
556
*** I am trying to expand to lumi singles runs, things get a bit more complex so I am just working out the trigger correlations
557
** Pass 2 runs
558
*** DEF-files
559
**** I checked out the DEF-files for our combination of the nested files
560
**** There are a lot a files (~150!!!!) and may be hard to track so next week *we should make a flowchart together*
561
**** Working on my list of branches for the next replay
562
***** Mainly just working on my list of branches for the explicit PS calculations
563
***** *Everyone should have a list of these branches by next mini-meeting (4/7/21)*
564 210 Stephen Kay
* Stephen
565
** Updated DEF-File for the "full" replay
566
*** Can't remove NData brances, Mark says they won't take up too many resources anyway
567
*** Removed individual PMT info and raw info for many detectors, reduced file size by factor ~2
568
** Updating DEF-files/scripts for calibrations as part of PionLT prep
569
** Will focus on DEF-file/DEF-cut file updates over next week
570
*** Will investigate HeeP replays over rest of this week.
571 207 Richard Trotta
572 203 Richard Trotta
----
573
574 201 Stephen Kay
h3. March 24, 2021
575
576
* KaonLT Mini Meeting focusing on Pass2 preparation
577
* "Task summary from Richard":https://redmine.jlab.org/projects/kltexp/wiki/Replay_2_Tasks
578
579
----
580
581 200 Richard Trotta
h3. March 17, 2021
582
583
* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_3_17_21.pdf
584 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.
585 202 Stephen Kay
* Mini meeting March 24th @ 4:30 EDT
586 201 Stephen Kay
587 200 Richard Trotta
----
588 194 Richard Trotta
589 199 Richard Trotta
h3. March 3, 2021
590
591
* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_3_3_21.pdf
592
** 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). 
593
** 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.
594
595
----
596
597
598 196 Richard Trotta
h3. February 17, 2021
599 194 Richard Trotta
600
* Richard
601
** 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.
602 198 Nathan Heinrich
* Nathan
603
** Presented an update on the Hodoscope Calibrations: https://redmine.jlab.org/attachments/download/1196/HodoscopeUpdate_2021Feb17.pdf
604
605 194 Richard Trotta
----
606
607 196 Richard Trotta
h3. February 3, 2021
608 193 Richard Trotta
609
* Richard
610
** A table with the aerogel efficiency for kaons is being created. It will be expanded to other particles and detectors.
611
612
----
613
614 196 Richard Trotta
h3. January 20, 2021
615 191 Richard Trotta
616
* "Richard":https://redmine.jlab.org/attachments/download/1172/KaonLTMeeting_1_20_21.pdf
617
** 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.
618
619
----
620
621 196 Richard Trotta
h3. January 6, 2021
622 190 Richard Trotta
623
* "Richard":https://redmine.jlab.org/attachments/download/1153/KaonLTMeeting1_6_21.pdf
624 322 Richard Trotta
** Analyzed most of the luminosity scans. There are a few issues I am investigating still which seem to be run related. 
625 186 Richard Trotta
626
----
627
628
h2. 2020 Meetings
629
630 185 Richard Trotta
h3. December 2, 2020
631
 
632
* Ali and Richard
633
** 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.
634
635
----
636
637 180 Richard Trotta
h3. November 18, 2020
638
639 183 Richard Trotta
* "Carlos":https://redmine.jlab.org/attachments/download/1103/LiveTime_Study_cyero.pdf
640 181 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.
641 180 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1101/KaonLTMeeting11_18_20.pdf
642
** Scaler analysis matches Carlos' code now. Overall significant improvements were made through some cut adjustments and incorrect variable definitions.
643
* Stephen
644 182 Richard Trotta
** Updated the hallc_replay_lt with parameter files for all coin peaks.
645 180 Richard Trotta
646
----
647
648 178 Richard Trotta
h3. November 4, 2020
649 321 Richard Trotta
 
650 178 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1092/KaonLTMeeting11_4_20.pdf
651 321 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. 
652 178 Richard Trotta
653 141 Stephen Kay
----
654
655 170 Richard Trotta
h3. October 28, 2020
656
657
* Ali
658 177 Richard Trotta
** Went over some of his tracking procedures for the report file implementation
659 172 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1091/KaonLTMeeting10_28_20.pdf
660 173 Richard Trotta
** Luminosity analysis continues. There are still some issues but things have improved a bit.
661 171 Stephen Kay
* "Stephen":https://redmine.jlab.org/attachments/download/1090/KaonLT_Meeting_28_10_20.pdf
662
** Discussion of CT peak analysis, progress and outline of what's left to do with this
663 174 Richard Trotta
* Vijay
664 176 Richard Trotta
** Dry run for Mark's hallc meeting tomorrow (10/29)
665 170 Richard Trotta
666
----
667
668 164 Richard Trotta
h3. October 14, 2020
669
670 168 Richard Trotta
* Ali
671 164 Richard Trotta
** Working through the REPORT_FILES template to get everything working and outputting proper information.
672
* "Richard":https://redmine.jlab.org/attachments/download/1085/KaonLTMeeting_10_14_20.pdf
673
** Updates on lumi scans. There are many issues from Scalers to Tracking that need to be resolved.
674 167 Richard Trotta
* Stephen
675 164 Richard Trotta
** He has included a demo for using the python analysis script in the README.
676 1 Richard Trotta
677 164 Richard Trotta
----
678
679 161 Richard Trotta
h3. September 23, 2020
680
681
* "Richard":https://redmine.jlab.org/attachments/download/1078/KaonLTMeeting_9_23_20.pdf
682
** 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. 
683
* Stephen
684 162 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.
685
* Petr
686
** Data fitting algorithm based on E.H. Bellamy paper. Extracts PMT spectra from ROOT file and makes a 1D projection histogram.
687 161 Richard Trotta
688
----
689
690 149 Richard Trotta
h3. September 9, 2020
691 156 Richard Trotta
692
* Richard
693 157 Richard Trotta
** Still working on run list, GUI checks
694 156 Richard Trotta
* "Stephen":https://redmine.jlab.org/issues/567
695
** New slim replay scripts and full replay scripts updated
696
* Ali
697
** Him and Stephen found an issue (already aware of) with zeros in the parameter files using Mark's hcana changes
698
** Need to be vigilant of crashed replays because this is probably the issue
699 158 Richard Trotta
* Vijay
700 156 Richard Trotta
** Nearly finished with HGcer calibrations
701 1 Richard Trotta
702 156 Richard Trotta
----
703
704
h3. August 26, 2020
705
706 149 Richard Trotta
*Links to talks->* "Ali":https://redmine.jlab.org/issues/483 "Vijay":https://redmine.jlab.org/issues/479
707 154 Richard Trotta
708
* Richard
709
** 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.
710
* Stephen
711
** Updated on RF times. There were a few issues with some runs, but overall most are finished.
712
* Ali
713
** 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)
714
* Vijay
715 150 Richard Trotta
** Updated the SHMS HGCher analysis. The calibrations are coming along, but a little more work needs to be finished up.
716 1 Richard Trotta
717 149 Richard Trotta
----
718
719 144 Richard Trotta
h3. July 29, 2020
720 147 Stephen Kay
721 148 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
722 146 Stephen Kay
723 155 Richard Trotta
* Stephen
724
** Updates on scripts to set pedestal defaults and AdcTdc offsets after hcana change
725
* Richard
726
** Updated plan and schedule for the analysis going forward
727 1 Richard Trotta
728 144 Richard Trotta
----
729
730 139 Richard Trotta
h3. July 8, 2020
731 1 Richard Trotta
732 139 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
733 150 Richard Trotta
734 139 Richard Trotta
----
735
736 132 Richard Trotta
h3. June 24, 2020
737
738 143 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
739 132 Richard Trotta
740
----
741
742 129 Richard Trotta
h3. June 9, 2020
743
744 135 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
745 129 Richard Trotta
746
----
747
748 125 Richard Trotta
h3. May 27, 2020
749
750 126 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
751 128 Richard Trotta
752 125 Richard Trotta
----
753
754 118 Stephen Kay
h3. May 13, 2020
755 124 Richard Trotta
756 138 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
757 1 Richard Trotta
758 121 Richard Trotta
----
759
760 111 Richard Trotta
h3. April 29, 2020
761
762 138 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
763 106 Richard Trotta
764 1 Richard Trotta
----
765 106 Richard Trotta
766 111 Richard Trotta
h3. April 15, 2020
767 104 Richard Trotta
768 102 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/attachments/download/977/KaonLTMeeting_4_15_20.pdf
769 105 Richard Trotta
770 102 Richard Trotta
----
771 95 Stephen Kay
772 111 Richard Trotta
h3. April 1, 2020
773 100 Stephen Kay
774 138 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
775 101 Richard Trotta
776 41 Stephen Kay
----
777 93 Richard Trotta
778 111 Richard Trotta
h3. March 18, 2020
779 93 Richard Trotta
780
*Links to talks->* "Richard's EIC Temple Draft 2":https://redmine.jlab.org/attachments/download/942/DRAFT2_mesonSF_EIC_Temple.pdf
781 1 Richard Trotta
782 93 Richard Trotta
----
783 91 Richard Trotta
784 111 Richard Trotta
h3. March 11, 2020
785 92 Richard Trotta
786 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
787 94 Richard Trotta
788 91 Richard Trotta
----
789 88 Richard Trotta
790 111 Richard Trotta
h3. Feb 26, 2020
791 90 Richard Trotta
792
* Peter's changes to hcana should be coming soon. Richard will check with Mark when he is down there for an update.
793
* Need to incorporate the latest "BCM updates":https://hallcweb.jlab.org/doc-public/ShowDocument?docid=1034 from Dave Mack.
794 1 Richard Trotta
* Richard should look at the luminosity scalar analysis before and after the BCM changes once he gets his script working again.
795 88 Richard Trotta
**  He is checking with Mark about this while he is down in jlab. 
796 1 Richard Trotta
797
----
798 86 Richard Trotta
799 111 Richard Trotta
h3. Feb 10, 2020 
800 87 Richard Trotta
801 86 Richard Trotta
----
802 1 Richard Trotta
803 111 Richard Trotta
h3. Jan 22, 2020
804 83 Richard Trotta
805
*Links to talks->* "Richard's Hall C Winter Talk Draft 1":https://redmine.jlab.org/attachments/download/937/KaonLTHallC_WinterTalk2020_Draft1.pdf
806 85 Richard Trotta
807 1 Richard Trotta
----
808 83 Richard Trotta
809 111 Richard Trotta
h3. Jan 15,2020
810 81 Richard Trotta
811 82 Richard Trotta
*Links to talks->* "Richard's Hall C Winter Talk Outline":https://redmine.jlab.org/attachments/download/936/KaonLTHallC_WinterTalk2020.pdf
812 81 Richard Trotta
813
----
814 78 Richard Trotta
815 111 Richard Trotta
h3. Jan 8,2020
816 78 Richard Trotta
817 1 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/76
818 79 Richard Trotta
819 1 Richard Trotta
* Richard
820
** PID efficiency script is coming together
821
*** Tighter cuts and cuts on timing, beta, etc. will be needed for cleaner electron cuts
822
*** 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.
823
824 80 Richard Trotta
----
825 113 Richard Trotta
826 112 Richard Trotta
h2. 2019 Meetings
827 80 Richard Trotta
828 141 Stephen Kay
----
829
830 111 Richard Trotta
h3. Dec 17,2019
831
832 77 Richard Trotta
Reminder: Mark Jones' commissioning analysis meetings are bi-weekly and announced by Mark
833
834
* Stephen
835
** Number of passes finished for HMS calorimeter
836
*** Still wiggles in all passes
837
** Finished his report on calibrations, "DC and Calorimeters":https://redmine.jlab.org/documents/74
838
** 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
839
*** CUA will be putting together a similar list
840 1 Richard Trotta
841 77 Richard Trotta
* Richard
842
** Fixed one error issue with SHMS calorimeter calibration code (discussed Dec 10th meeting), but still have one error
843
** PID efficiency script plots are complete, but still some questions he needs to work out before a final version
844
*** Eventually need to include tracking into PID efficiencies
845
** Pete brought up the question for a number of multi-hits we are getting
846
*** (Dead Time)+(Trigger efficiency)-EDTM
847
848
----
849 72 Richard Trotta
850 111 Richard Trotta
h3. Dec 10,2019
851 72 Richard Trotta
852 74 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/73
853
854
* Garth and Stephen were in the most recent SIDIS meeting
855
** Wit had lots of hcana changes but they seem to be critical to our work 
856
*** Changes such as new detector classes
857 1 Richard Trotta
** Hopefully Wit will present these in the next commissioning meeting
858
859 77 Richard Trotta
* Stephen improved wiggles but still prevalent
860 74 Richard Trotta
861
* Richard finished HGCer calibrations, he concluded that the online parameters are sufficient
862
** He also has been looking at SHMS calorimeter calibrations but has had issues running the scripts. Most likely a pathing issue.
863
** The "tasks":https://redmine.jlab.org/projects/kltexp/wiki/Analysis_Tasks page has been updated with a section for efficiencies. 
864
*** A PID efficiency script is currently being developed and hopefully should have some plots for our next meeting.
865
866 75 Richard Trotta
----
867 74 Richard Trotta
868 111 Richard Trotta
h3. Nov 26,2019
869 71 Richard Trotta
870
*Links to talks->* "Richard":https://redmine.jlab.org/issues/480
871
872
* Stephen
873
** DC SHMS, small-angle has poor performance
874
*** Tighter cuts or PID (currently only looks for electrons)
875
** Vardan said calorimeter wiggles are an ongoing issue with no current solution
876
877
* Richard
878 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.
879 71 Richard Trotta
*** Richard will pick up looking at the HGCer calibrations from Vijay's scripts. 
880
*** Richard will also be looking at the SHMS calorimeter and with the suggestion of getting some negatively polarized SHMS runs from Hem.
881
** The HMS Cherenkov is finished with the conclusion that the calibrations from the online runs are good
882
** We can begin looking forward towards efficiencies. 
883
*** Garth suggested that looking at PID may be an advantageous first steps. Precise definitions of these PIDs will need to be logged.
884
*** Clear notes on efficiencies steps will be needed. They will need to be redefined multiple times in multiple ways. 
885
886
* Hem
887
** Has been looking at the calorimeter as well. 
888 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.  
889
890
----
891
892 111 Richard Trotta
h3. Nov 19,2019
893 1 Richard Trotta
894 70 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
895
896
* Richard
897
** Finished up TDC cut paper going through the procedure (found "here":https://redmine.jlab.org/issues/500)
898
** Needed to add Carlos pre-trigger designs to an appendix for the paper which clarifies the introduction section
899
900
* Stephen
901
** Issues with DC calibration for only a few runs during each run period
902
** "wiggles" in HMS calorimeter calibrations for some runs
903
*** few runs where HMS cal totally failed (which was dependent on initial parameters)
904
*** Spring looked worse than the rest (surprisingly), but this may be because online calibration wasn't great
905
906 2 Richard Trotta
----
907 68 Richard Trotta
908 111 Richard Trotta
h3. Nov 5,2019
909 68 Richard Trotta
910
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500
911
912
* Timing update (Stephen)
913
** Reference times between Richard and Stephen are very similar and the GitHub is updated accordingly
914
** Richard is going to add the trigger time cuts once the fall runs are finished (by end of week)
915
** First pass of detector reference time parameter files finished
916 1 Richard Trotta
917 68 Richard Trotta
* Peter's hcana code (Richard and Stephen)
918
** 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
919
*** Richard has emailed Peter about the issue with no response yet (follow-up soon)
920
** 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.
921
922
* Calibrations were decided to be done once per shift
923
924
* Next meeting schedule...
925 127 Richard Trotta
** Small meetings Nov 12 and Nov 19 (at 3pm EST) so Richard and Stephen can iron out the timing and calibrations
926
** November 26 (at 3pm EST) will be a larger meeting. 
927 68 Richard Trotta
*** This is the rough deadline we made for finishing up calibrations. 
928
*** 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!!
929
930
----
931
932 111 Richard Trotta
h3. Oct 22,2019
933 62 Richard Trotta
934 64 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
935 62 Richard Trotta
936 65 Richard Trotta
* SHMS Reference Time Amplitude Cuts(Stephen)
937
** Extra peaks in HG from cross-talk and "ghost-bands" due to ADC screw up
938
*** cuts applied on SHMS ADC ref time amplitude (greater than zero) done before any further event selection and histogram filling
939
** This is a temporary fix to "ghost-bands" and cross talk
940
*** Although for HG there is still a small peak. The hodoscope is fine.
941
** The time window is easier to set now.
942
** DC has been fine (since it uses TDC)
943
*** DC calibrations should be good to complete, other detectors need more fixes (i.e. the remaining "ghost-band")
944
** Hodoscope still bad but this might be because of that "ghost-band", needs to be further investigated
945
946 1 Richard Trotta
* Peter's hcana fixes for reference time (Richard)
947 67 Richard Trotta
** Peter implemented changes to hcana
948
** Two major issues...
949 1 Richard Trotta
## Amplitude goes to null and integral is low or negative which causes a rate-dependent efficiency. 
950 67 Richard Trotta
*** Peter has used the average pulse value acquired over a large sample of runs for each detector. 
951 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)
952 67 Richard Trotta
*** Peter created a routine to find the best offset by means of matching TDC and ADC
953
** Richard has been checking for bugs in the code. 
954
*** It seems to be ready to implement, Richard emailed Peter for confirmation on the implementation in our group directory
955
956 1 Richard Trotta
* Calibration of HMS detectors when the timing is agreed upon by Stephen and Richard.
957 67 Richard Trotta
** Besides hodoscope which still has an issue with the script
958 65 Richard Trotta
** Stephen and Richard are having a meeting late next week to determine time window values
959 62 Richard Trotta
*** These will be relatively final, but on the wider side if adjustments need to be made in the future
960
961 1 Richard Trotta
-----
962 61 Richard Trotta
963 111 Richard Trotta
h3. Sep 24,2019
964 61 Richard Trotta
965
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
966 1 Richard Trotta
967 61 Richard Trotta
-----
968 1 Richard Trotta
969 111 Richard Trotta
h3. Sep 10,2019
970 59 Vijay Kumar
971
*Links to talks->* "Stephen":https://redmine.jlab.org/documents/69 "Ali":https://redmine.jlab.org/documents/72 "Richard":https://redmine.jlab.org/issues/500
972 1 Richard Trotta
973
-----
974 55 Stephen Kay
975 111 Richard Trotta
h3. August 26, 2019
976 55 Stephen Kay
977
*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
978 1 Richard Trotta
979 54 Richard Trotta
----
980
981 111 Richard Trotta
h3. June 21, 2019
982 54 Richard Trotta
983 1 Richard Trotta
*Links to talks->* "Hallc Talk Outline":https://redmine.jlab.org/documents/60 
984 54 Richard Trotta
985 42 Stephen Kay
----
986
987 111 Richard Trotta
h3. June 14, 2019
988 1 Richard Trotta
989 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
990 42 Stephen Kay
991
992 35 Stephen Kay
----
993 1 Richard Trotta
994 111 Richard Trotta
h3. June 4, 2019
995 36 Vijay Kumar
996 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
997 35 Stephen Kay
998 1 Richard Trotta
999 35 Stephen Kay
----
1000 1 Richard Trotta
1001 111 Richard Trotta
h3. May 21, 2019
1002 1 Richard Trotta
1003
*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
1004 35 Stephen Kay
1005
----
1006 1 Richard Trotta
1007 111 Richard Trotta
h3. May 14, 2019
1008 1 Richard Trotta
1009 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
1010 1 Richard Trotta
1011 35 Stephen Kay
----
1012 1 Richard Trotta
1013 111 Richard Trotta
h3. April 30, 2019
1014 1 Richard Trotta
1015
*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
1016 35 Stephen Kay
1017 1 Richard Trotta
----
1018
1019
h3. February 4, 2019
1020
1021
*Links to talks->* "Richard":https://redmine.jlab.org/documents/43 "Stephen":https://redmine.jlab.org/documents/44
1022
1023
----
1024 113 Richard Trotta
1025 112 Richard Trotta
h2. 2018 Meetings
1026 141 Stephen Kay
1027
----
1028 111 Richard Trotta
1029
h3. August 21, 2018
1030
1031 1 Richard Trotta
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
1032 35 Stephen Kay
1033 1 Richard Trotta
----
1034 35 Stephen Kay
1035 111 Richard Trotta
h3. August 8, 2018
1036 35 Stephen Kay
1037
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
1038 1 Richard Trotta
1039
----
1040 35 Stephen Kay
1041 111 Richard Trotta
h3. August 3, 2018
1042 1 Richard Trotta
1043 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383
1044
*Links to talks->*
1045 1 Richard Trotta
1046 35 Stephen Kay
----
1047 1 Richard Trotta
1048 111 Richard Trotta
h3. July 11, 2018
1049 1 Richard Trotta
1050 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383 #384
1051 1 Richard Trotta
1052 35 Stephen Kay
*Action items:*
1053 1 Richard Trotta
1054 35 Stephen Kay
* Update run plan, e.g. add prescales (Garth)
1055
* Check on details of: magnet cycling procedure, minimum angles, MCC fringe field steering, beam energy measurements, optics checks (Tanja)
1056
* Identify additional run coordinators (Tanja)
1057
* Encourage collaborators to take shifts, e.g. FIU (Pete)
1058
* Draft email about shifts etc. to collaboration (Tanja)
1059
* Develop diagnostic scripts and kaonLT specific (Richard, Ryan)
1060
* Continue documentation development, e.g. checklist, shift taker instructions, HowTo or link to generic Hall C HowTo, task list, web page (Richard, Garth)
1061 1 Richard Trotta
1062 35 Stephen Kay
*Discussions:*
1063
1064
* 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
1065
* HGC: waiting for re-installation
1066
* Trigger checkout: main items to keep in mind: fADC thresholds, timing HMS/SHMS - leading arm, possible rate limitations
1067 1 Richard Trotta
* Shifts
1068
* Diagnostics scripts and documentation
1069
* Personnel schedules
1070
1071
----
1072
1073 111 Richard Trotta
h3. June 28, 2018
1074 1 Richard Trotta
1075
*Links to talks->* "Richard":https://redmine.jlab.org/documents/34
1076
1077
*Action Items:*
1078
1079
* Develop and post shift schedule. Send out request. Find out who is KAONLT liaison (Tanja)
1080
* Contact potential run coordinators. (Tanja)
1081
* Aerogel tray exchange for start of experiment and coordination of future exchanges (Vladimir)
1082
* Update runplan and prepare documents needed for shift crew, e.g. run sheets (Garth)
1083
* Set up a web page to collect and link from Redmine - How-To documents, initial calibrations, etc. (Garth, Richard)
1084
* 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)
1085
* Develop trigger/detector checkout plan (Tanja, initial draft)
1086
** Are all experts available at run start, experts needed: coincidence timing , Harp Scans, BCM calibrations, ...
1087
* 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)
1088
* Find out if all aerogel trays needed for experiment can be stored inside Hall C to avoid having to open truck ramp (Vladimir)
1089
1090
*Analysis Updates:*
1091
1092
* Ryan 
1093
** resolving differences between his analysis and Richard's
1094
1095
* Richard
1096
** 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
1097
** 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.
1098
1099
----
1100
1101 111 Richard Trotta
h3. May 31, 2018
1102 1 Richard Trotta
1103 35 Stephen Kay
*Links to talks->* "Samip":https://redmine.jlab.org/documents/30
1104 1 Richard Trotta
1105 35 Stephen Kay
----
1106 1 Richard Trotta
1107 111 Richard Trotta
h3. May 17, 2018 
1108 1 Richard Trotta
1109 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
1110 2 Richard Trotta
1111 35 Stephen Kay
* Luminosity scans (Richard, Ryan)
1112 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
1113 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
1114
** discussion about pre-scale factors
1115 1 Richard Trotta
1116 35 Stephen Kay
* Discussion about Richard's script extracting and printing information from report files and trees including histograms
1117
** Add option for looking at yields with cuts on cointime, target window, and missing mass
1118
** Add option to look at real peak vs. background level
1119 1 Richard Trotta
1120 35 Stephen Kay
* H(e,e'p) kinematics investigation for fall run (Samip)
1121
** 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
1122 1 Richard Trotta
1123 35 Stephen Kay
* *Action Items*
1124
** Luminosity scans at low rates from January (Richard)
1125
** Luminosity scans from April with corrected efficiencies, e.d. DT (Ryan)
1126
** H(e,e'p) and H(e,e') kinematics for upcoming Kaon LT run (Samip)
1127
** Kaon LT detailed run plan (Garth, Pete, Tanja)
1128
** Preparations, e.g. report files, diagnostic histograms and real time monitoring, shift worker instructions, optimization of trees (all)
1129 1 Richard Trotta
1130
----
1131
1132 111 Richard Trotta
h3. May 10, 2018
1133 35 Stephen Kay
1134 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
1135 35 Stephen Kay
1136
* Luminosity Scans January 2018 (Richard)
1137
** Tracking-based analysis for Runs 1415-1423, .. for now focus on HMS, typical HMS S1X rates are <
1138
** Cuts applied: PID for electrons (Cer, Cal), acceptance (delta)
1139
** Efficiency calculation was investigated in detail and applied using scalers from trees
1140
** Results for carbon (normalized to 30uA) show large variation - need to understand
1141
** *Next steps:*
1142
*** Double check calculation of computer lifetime, look for differences in TRIG and PRETRIG scalers
1143
*** Check stability of pre-scale (Ryan saw changes within runs)
1144
*** Check if detector calibrations for runs are implemented correctly
1145
*** Analyze with Ryan's cuts
1146 1 Richard Trotta
1147 35 Stephen Kay
* Luminosity Scans April 2018 (Ryan)
1148
** Confirms Richard's earlier finding that scaler-based analysis is not reliable and that it's best to analyze event-by-event
1149
** Tracking-based analysis for runs 2073-2095
1150
** Cuts applied: PID for electrons (TOF, Cal, Chi2), acceptance (delta and angles), BCM4a
1151
** Included most recent detector calibrations in replay of these runs
1152
** Efficiencies from report file mainly, may need to update tracking efficiency implementation
1153
** Found that calculations of computer deadtime requires different set of scalers for runs from January to those from April 2018
1154
** Results show carbon yields consistent with unity within error (0.5% error bars), and boiling for hydrogen and deuterium
1155
** *Next steps:*
1156 5 Richard Trotta
*** Check tracking efficiency
1157 35 Stephen Kay
1158
* *Global comments on Luminosity Scans (so far)*
1159 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.
1160 35 Stephen Kay
** Efficiencies in report files need to be updated, e.g. CPU deadtime (Richard)
1161
** Check if BCM4a is the one closest to the target - get a map of the hall (Richard, Ryan)
1162
** Uncertainties on current
1163
** Detector calibrations
1164 1 Richard Trotta
** HMS vs. SHMS
1165 35 Stephen Kay
1166
* eK+ coincidence time from SIDIS Spring 2018 run (Samip)
1167
** Worked with Mark Jones on coincidence time calculation - now available in hcana (see Samip's 10 May 2018 email for more details)
1168
** runs used in this analysis: 3423 with Q2=3.1 GeV2 and W=2.78 GeV
1169
** Coincidence time spectrum shows peak separations >2 ns corresponding to different accelerator frequency
1170
** Missing mass spectra: Kaon peak clearly visible, also see pions even after cuts
1171
** Found that pions appear localized in phase space - seems to be due to end point in kinematic phase space
1172 1 Richard Trotta
** *Next steps:*
1173 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)
1174 35 Stephen Kay
1175
* Yield normalized ratios from SIDIS (Hem)
1176
** Yield ratios of data to MC match well in shape, but normalization seems not quite right
1177
** *Next steps:*
1178 4 Richard Trotta
*** Check if efficiencies, currents, run time etc. are taken into account correctly
1179
1180
----
1181 35 Stephen Kay
1182 111 Richard Trotta
h3. April 26, 2018
1183 4 Richard Trotta
1184 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
1185 4 Richard Trotta
1186 35 Stephen Kay
* Discussion luminosity scan analysis (earlier scan) - Richard
1187
** 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
1188
** Notes on efficiencies in report file:
1189
*** DT (EDTM) is not electronic deadtime. Instead use for now 50ns* trigger rate for HMS and 100ns* trigger rate for SHMS
1190
*** Cherenkov efficiency seems low (check if that is due to PID, thresholds, pi/e, etc)
1191
*** Tracking efficiency needs to be checked
1192
*** 3/4 trigger efficiency seems ok
1193
* Discussion luminosity scan analysis (later scan) - Ryan
1194
** Fewer carbon runs than earlier scan
1195
** Shown is a tracking-based analysis using data from the ROOT trees
1196 111 Richard Trotta
** First results for carbon, LH3, and LD2, but efficiencies need to be checked
1197 35 Stephen Kay
* SIDIS analysis - Hem
1198
** Shown is a data/MC comparison for different kinematic settings. Agreement in shape is very good. Normalization has yet to be applied.
1199
** Discussion about agreement in z and apparent offset - relation of this offset with spectrometer offset
1200
* Analysis of exclusive events in SIDIS - Samip
1201
** Shown is a look at the first kaon events in exclusive limit of SIDIS data
1202
** Ongoing work on implementing coincidence time into tree
1203
* Discussion of run plan, and in particular possible low Q2/low energy
1204
** Assume that kaon low Q2=0.4 already included - have kinematics with specified beam energies, if needed
1205
** 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
1206
** Garth will put this together in a draft email
1207
1208 12 Richard Trotta
----
1209
1210 111 Richard Trotta
h3. March 29, 2018
1211 12 Richard Trotta
1212 35 Stephen Kay
*Links to talks->* "Richard, ":https://redmine.jlab.org/documents/16 "Samip":https://redmine.jlab.org/documents/27
1213 13 Richard Trotta
1214 35 Stephen Kay
* Details of adding points to fall run plan - will be ready sooner, likely in week of 4/1 (Garth, Samip, Tanja)
1215
* Luminosity scans (Ryan, Andres, Richard, Pete)
1216
* Macros, SIDIS analysis (Hem, Anashe)
1217
* Elastic data (TBD)
1218
1219 14 Richard Trotta
----
1220 18 Richard Trotta
1221 111 Richard Trotta
h3. February 22, 2018
1222 18 Richard Trotta
1223 35 Stephen Kay
*Links to talks->* "Andres":https://redmine.jlab.org/documents/19
1224 18 Richard Trotta
1225 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.
1226
* Brief description of Samip's work - working on coincidence timing decoding with JLab staff and re-optimization of kinematics
1227
* Discussion of Richard's slides on run plan kinematics and preparations -
1228
** 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
1229
** 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
1230
** for each setting will need 1-2 shifts for calibrations - need to negotiate with other experiments in run group
1231
** kinematics plots W-Q2 show that still need to do some optimization
1232
** run sheets: include raster size, update coincidence count labeling, and carbon target labeling
1233
* Discussion of next meeting. Garth at JLab 8-16 March - might have meeting during that time.
1234 26 Richard Trotta
1235 35 Stephen Kay
* *Action Items:*
1236
** Post slides/notes from this meeting and procedure to set up hcana in Redmine (Tanja)
1237
** Update run sheet and kinematic optimization for W/Q2 (Garth)
1238
** Circulate elastic calculations for kinematic settings (Samip)
1239
** Continue investigation of elastic data and run plan kinematics (Andres/Richard)
1240
** Test software installation instructions (Pete)
1241
** 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) 
1242 32 Stephen Kay
1243
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