Project

General

Profile

Kaon LT Meetings » History » Version 505

Garth Huber, 03/10/2023 04:49 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
----
8 284 Vijay Kumar
9 458 Richard Trotta
h2. 2023 Meetings
10 480 Richard Trotta
11 491 Vijay Kumar
---
12
13 501 Garth Huber
h3. March 09, 2023
14
15
* Garth/Stephen notes attachment:mtg_23mar09.txt
16 504 Garth Huber
* Nathan
17 505 Garth Huber
** Presented the an update to the aerogel calibration, including a 3 year old presentation from Petr
18 502 Nathan Heinrich
*** presentation attachment:presentation-2020-09-23-kaonlt-summary.pdf
19 503 Garth Huber
** Also working on the anomalous LD- setting. Things not making sense. Requesting back up.
20 501 Garth Huber
21
---
22
23 490 Vijay Kumar
h3. March 02, 2023
24
25 500 Garth Huber
* Garth's notes attachment:mtg_23mar02.txt
26 494 Richard Trotta
* Richard
27 495 Richard Trotta
** attachment:KaonLTMeeting3_2_23.pdf
28 497 Richard Trotta
** Heep SIMC to hcana script is working for missing momentum and energy variables. "Heep 10p6":https://redmine.jlab.org/attachments/1763 "Heep 8p2":https://redmine.jlab.org/attachments/1759 "Heep 6p2":https://redmine.jlab.org/attachments/1760 "Heep 4p9":https://redmine.jlab.org/attachments/1762 "Heep 3p8":https://redmine.jlab.org/attachments/1761
29 498 Richard Trotta
** Fortran scripts for finding average kinematic values and cross sections is working. "Q2=5.5, W=3.02, high eps":https://redmine.jlab.org/attachments/1767 "Q2=5.5, W=3.02, low eps":https://redmine.jlab.org/attachments/1766
30 494 Richard Trotta
** My yield ratios are looking a very weird, more investigation is required. "Ratio and xsects for Q2=5.5, W=3.02, low eps":https://redmine.jlab.org/attachments/1765
31 490 Vijay Kumar
* Vijay
32
** MMpi cut updated.
33
** 8th t-bin adjusted.
34
** Events per t-bin calculated for each epsilon setting.
35
** Experimental Yield calculation in each bin is done.
36 492 Vijay Kumar
** More details of the update are in the slides. attachment:KaonLT_meeting_March02_2023.pdf
37 490 Vijay Kumar
38 478 Richard Trotta
---
39
40 488 Ali Usman
h3. Feb 23, 2023
41
42 489 Garth Huber
* Garth/Stephen notes  attachment:mtg_23feb23.txt
43 488 Ali Usman
* Ali
44
** Update on HMS Cherenkov and Calorimeter efficiency study. attachment:KaonLT_Meeting_Feb_23.pdf
45
** Looking at wide range of Heep Singles settings from KaonLT data (primarily low e data).
46
47
---
48
49 486 Vijay Kumar
h3. Feb 16, 2023
50
51 487 Garth Huber
* Garth/Stephen notes attachment:mtg_23feb16.txt
52 484 Vijay Kumar
* Vijay
53
** Updated the diamond cut for Q2 = 0.38 GeV2 data.
54
** t resolution checked from the center setting of SIMC at low epsilon.
55
** Binned the data in t (total 8 bins).
56
** t resolution checked for each t bin too.
57
** Working to bin the data in Phi (16 bins).
58 485 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
59 484 Vijay Kumar
60
61
---
62
63 481 Ali Usman
h3. Feb 9, 2023
64
65 483 Garth Huber
* Garth/Stephen Notes attachment:mtg_23feb09.txt
66 481 Ali Usman
* Ali
67
** attachment:KaonLT_Meeting_Feb_09.pdf
68
** HMS Cerenkov and Calorimeter Study for different kinematics settings.
69 478 Richard Trotta
* Richard
70
** attachment:KaonLTMeeting2_9_23.pdf
71
** Fixed the odd right distribution for Q2=5.5 by applying more strict cointime cuts.
72 479 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.
73 326 Garth Huber
74 405 Vijay Kumar
---
75 1 Richard Trotta
76 474 Vijay Kumar
h3. Feb 2, 2023
77
78 476 Garth Huber
* Garth/Stephen Notes attachment:mtg_23feb02.txt
79 475 Richard Trotta
* Richard
80
** attachment:KaonLTMeeting2_2_23.pdf
81
** The simc portion of the LT_analysis code is working but there is a bug I am sorting out which produces incorrect plots
82
** 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.
83
** 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.
84 474 Vijay Kumar
* Vijay
85
** Update from the analyzed low epsilon data of Q2 = 0.38 GeV2. attachment:KaonLT_meeting_Feb2_2023.pdf
86 477 Alicia Postuma
* Alicia
87
** Preliminary asymmetry results: Q2=3/W=2.32, Q2=4.4/W=2.74, Q2=2.115/W=2.95, aluminum
88
** attachment:Asymmetry_Postuma_Feb2.pdf
89
90 474 Vijay Kumar
91
---
92
93 469 Richard Trotta
h3. Jan 26, 2023
94
95 473 Garth Huber
* Stephen's Notes attachment:mtg_23jan26.txt
96 469 Richard Trotta
* Richard
97
** attachment:KaonLTMeeting1_26_23.pdf attachment:FullAnalysis_Q5p5W3p02_highe.pdf
98
** 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.
99
** SIMC vs Data plots for Q2=5p5 show a very small SIMC. Need to investigate further.
100 470 Nathan Heinrich
* Nathan
101
** attachment:RefTimes_Update_2023-01-26.pdf 
102
** Asked Carlos Yero about the cointime ref times, he sent me an older email chain attachment:ref_times_email_exchange.txt
103
*** only SHMS variables are used.
104
** Presented ref times plots, and suggested cuts.
105 471 Nathan Heinrich
*** Cuts are already set up and pull request is sent to LTSep_Analysis_2022 branch
106
107 469 Richard Trotta
---
108
109 458 Richard Trotta
h3. Jan 19, 2023
110
111 467 Garth Huber
* Garth/Stephen Notes  attachment:mtg_23jan19.txt
112 462 Ali Usman
* Ali
113
** Looking at HMS Calorimeter and Cherenkov Efficiency and PID. attachment:KaonLT_Meeting_Jan_19.pdf
114 460 Vijay Kumar
* Vijay
115
** attachment:Vijay_Jan19_2023.pdf
116
** Trying to understand the pion cross-section across the acceptance. 
117 464 Alicia Postuma
* Alicia
118
** attachment:Asymmetry_Postuma_Updates-6.pdf
119
** Added dummy target subtraction to asymmetry calculation
120
** Discussed fitting to extract cross-section ratio
121
** Requested: details on error calculations: attachment:Asymmetry_Errors.pdf
122 458 Richard Trotta
* Richard
123
** attachment:KaonLTMeeting1_19_23.pdf
124
** Implemented Jacob's diamond cut script into the setup before Bill's code. This also does the t-binning as well.
125
** 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.
126 461 Nathan Heinrich
* Nathan
127 468 Garth Huber
** Started working on reference times
128 461 Nathan Heinrich
** has some extra peaks in some runs
129
*** Should be explained by the triggers on in each run
130 1 Richard Trotta
** attachment:RefTimes_Update_2023-01-19.pdf
131 468 Garth Huber
132
----
133 458 Richard Trotta
134 453 Ali Usman
h3. Jan 4, 2023
135
136 457 Garth Huber
* Garth's Notes attachment:mtg_23jan04.txt
137 453 Ali Usman
* Ali
138
** attachment:Jan4_KLT_Meeting.pdf
139 1 Richard Trotta
** All Kaon_LT data has been replayed over the holidays. Slide show list of major changes for the replay.
140 458 Richard Trotta
141
---
142 459 Richard Trotta
143 458 Richard Trotta
h2. 2022 Meetings
144 454 Ali Usman
145 453 Ali Usman
---
146
147 450 Richard Trotta
h3. Dec 21, 2022
148
149 457 Garth Huber
* Garth/Stephen Notes attachment:mtg_22dec21.txt
150 450 Richard Trotta
* Richard
151 451 Richard Trotta
** attachment:KaonLTMeeting12_21_22.pdf
152 450 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. 
153
** 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.
154
155
---
156
157 449 Garth Huber
h3. Dec 14, 2022
158
159 457 Garth Huber
* Garth/Stephen Notes attachment:mtg_22dec14.txt
160 449 Garth Huber
161
---
162
163 442 Richard Trotta
h3. Dec 7, 2022
164 440 Ali Usman
165 457 Garth Huber
* Garth/Stephen Notes attachment:mtg_22dec07.txt
166 440 Ali Usman
* Ali
167 442 Richard Trotta
** New error calculation (binomial) for efficiencies and Live Times. attachment:KaonLT_Dec_5.pdf
168 443 Richard Trotta
* Richard
169 446 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
170 443 Richard Trotta
** A new subroutine has been added for the hcana variable calculations in SIMC, this is ongoing.
171
** 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.
172
** 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.
173 448 Alicia Postuma
* Alicia: attachment:Asymmetry_Postuma_Dec07.pdf
174 440 Ali Usman
175
---
176
177 439 Garth Huber
h3. Nov 30, 2022
178
179
* Garth/Stephen Notes attachment:mtg_22nov30.txt
180
181
---
182
183 437 Garth Huber
h3. Nov 23, 2022
184
185
* Garth/Stephen Notes attachment:mtg_22nov23.txt
186 438 Alicia Postuma
* Alicia asymmetry update attachment:Asymmetry_Postuma_Updates.pdf
187 437 Garth Huber
188
---
189
190 424 Richard Trotta
h3. Nov 16, 2022
191
192 435 Garth Huber
* Garth/Stephen Notes attachment:mtg_22nov16.txt
193 424 Richard Trotta
* Richard
194 428 Richard Trotta
** "8p2 LH2":https://redmine.jlab.org/attachments/1684 "8p2 C":https://redmine.jlab.org/attachments/1685
195
** "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
196 424 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.
197
** 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.
198
** I found a script for raster calibrations. The script is being fixed as it is currently a bit of a mess.
199 429 Richard Trotta
** https://redmine.jlab.org/projects/kltexp/wiki/Hall_C_Raster_Algorithm
200 430 Stephen Kay
* Stephen
201
** Updates to the hcana RFTime class
202
** Added in particle dependent corrections for e/pi/K/p for each spectrometer
203
*** Calculate beta for each particle type (from momentum, delta)
204
*** Determine path length from xptar and delta
205
*** Calculate ToF
206
*** Add this in modulo that determines RFtime
207
*** Tried method Shuo used initially, didn't really do anything
208
** Some further updates needed before it will be pushed to the hallc repo
209 433 Stephen Kay
** "Slides":https://redmine.jlab.org/attachments/1694 
210
** "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 
211
** "RF correction simply the ToF added in the modulo fn, seems to work":https://redmine.jlab.org/attachments/1695
212 436 Garth Huber
* Vijay (presented by GH)
213
** low Q2 attachment:CPULT_lowQ2.png attachment:TLT_lowQ2.png attachment:ELT_lowQ2.png
214 424 Richard Trotta
215
---
216
217 420 Vijay Kumar
h3. Nov 09, 2022
218
219 421 Garth Huber
* Garth/Stephen Notes attachment:mtg_22nov09.txt
220 422 Garth Huber
* Bill (Wenliang) Li L/T-separation code tutorial.
221 423 Garth Huber
** Video recording is posted at: http://lichen.phys.uregina.ca/~huberg/kaon/LT_tutorial_20221109_1920x1080.mp4
222 420 Vijay Kumar
* Vijay
223
** 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 
224
225
---
226
227 405 Vijay Kumar
h3. Nov 2, 2022
228
229 416 Garth Huber
* Garth/Stephen notes attachment:mtg_22nov02.txt
230 405 Vijay Kumar
* Vijay
231 406 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.
232 1 Richard Trotta
attachment:Vijay_REYIELD_2p7C.pdf 
233 419 Vijay Kumar
  
234 411 Ali Usman
* Ali
235
** 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.
236 412 Ali Usman
attachment:KaonLT_Meeting_Nov_2.pdf
237 418 Jacob Murphy
* Jacob
238
** 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.
239
attachment:HMS_Optimization_at_High_Momentum.pdf
240 413 Richard Trotta
* Richard
241 427 Richard Trotta
** "6p2 C":https://redmine.jlab.org/attachments/1658 "6p2 LH2":https://redmine.jlab.org/attachments/1659
242 426 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
243 413 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%.
244
** 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.
245
** 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.
246
247 405 Vijay Kumar
 
248 325 Garth Huber
----
249 346 Richard Trotta
250 403 Garth Huber
h3. Oct 26, 2022
251
252
* DaveG notes attachment:mtg_22oct26.txt
253
254
----
255
256 402 Garth Huber
h3. Oct 19, 2022
257 1 Richard Trotta
258 402 Garth Huber
* Garth/Stephen notes attachment:mtg_22oct19.txt
259 401 Richard Trotta
* Richard
260
** The trend in the SHMS track yields is still present in the positive polarity luminosity runs.
261
** Talk for the Hall C Quarterly meeting was discussed. 
262
263
----
264
265 400 Garth Huber
h3. Oct 12, 2022
266
267
* Garth/Stephen notes attachment:mtg_22oct12.txt
268
269
----
270
271 397 Richard Trotta
h3. Oct 4, 2022
272
273 399 Garth Huber
* Garth/Stephen notes attachment:mtg_22oct05.txt
274 397 Richard Trotta
* Richard
275
** attachment:KaonLTMeeting10_4_22.pdf
276
** 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.
277
*** It should be noted, there are huge discrepancies between BCM4A and BCM1 in some cases (like 20+ uA).
278
** Ran into some issues with the cross-section code. I am in debug mode trying to find the cause.
279
** 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.
280
281
----
282
283 393 Garth Huber
h3. Sept 28, 2022
284
285 394 Garth Huber
* Garth/Stephen notes attachment:mtg_22sep28.txt
286
* Jacob
287 396 Jacob Murphy
** HMS optics fitting - attachment:HMS_Optics_Calibrations_Update.pdf
288 394 Garth Huber
289 393 Garth Huber
----
290
291 382 Garth Huber
h3. Sept 21, 2022
292
293 392 Garth Huber
* Garth/Stephen notes attachment:mtg_22sep21.txt
294 389 Richard Trotta
* Richard
295
** attachment:Yield_6p2cl1.pdf attachment:Yield_10p6cl2.pdf attachment:Yield_10p6cl1.pdf
296
** 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.
297 390 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.
298
* Ali
299
** attachment:Ali_Sep21_Analysis.pdf
300 391 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.
301 389 Richard Trotta
302 382 Garth Huber
----
303
304 379 Garth Huber
h3. Sept 8, 2022
305
306 382 Garth Huber
* Garth/Stephen Notes attachment:mtg_22sep08.txt
307 383 Ali Usman
* Ali
308
** attachment:Sep8_Analysis.pdf
309 386 Ali Usman
** Heep Coin Analysis update. Fixed the issue with emiss and pmiss. Includes number of debug tests.
310 384 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
311 387 Ali Usman
** Full analysis files are the latest data/simc comparison for different beam energies (No offsets applied yet) 
312 380 Richard Trotta
* Richard
313
** attachment:KaonLTMeeting9_8_22.pdf
314 381 Richard Trotta
** attachment:Yield_6p2_l1_all.pdf attachment:Yield_10p6_l1_all.pdf attachment:Yield_10p6_l2_all.pdf
315 380 Richard Trotta
** Improved total uncertainties
316
** In-depth with tracking cut analysis underway
317
** Poor TLT consistent with poor CPULTs
318
319 379 Garth Huber
----
320
321 371 Garth Huber
h3. Aug 31, 2022
322
323 379 Garth Huber
* Garth/Stephen Notes attachment:mtg_22aug31.txt
324 378 Richard Trotta
* Richard
325
** attachment:KaonLTMeeting8_31_22.pdf
326
** 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.
327
** Uncertainties for the luminosities and heep are next up.
328
329 371 Garth Huber
----
330
331 374 Garth Huber
h3. Aug 26, 2022
332 1 Richard Trotta
333 375 Garth Huber
* Meeting on L/T-separation procedure
334 374 Garth Huber
** Garth's slides attachment:LT_sep_iterations.pdf
335
** Bill's tutorial (Nov 2018) attachment:Kaon_LT_tutorial_18nov28.pdf
336 377 Garth Huber
** Stephen's notes attachment:LTsep_mtg_22aug26.txt
337 395 Garth Huber
** Recording of Sept 27 repeat at: http://lichen.phys.uregina.ca/~huberg/kaon/LT_tutorial_20220927_1920x1080.mp4
338 373 Garth Huber
339
----
340 372 Garth Huber
341 366 Garth Huber
h3. Aug 17, 2022
342 368 Vijay Kumar
343 371 Garth Huber
* Garth/Stephen Notes attachment:mtg_22aug17.txt
344 367 Vijay Kumar
* Vijay
345 369 Vijay Kumar
** The summary of the Heepcheck study is attached here. attachment:Vijay_Aug17_2022.pdf 
346 367 Vijay Kumar
** 3.6 and 3.9 GeV data do NOT have the angle offsets. This has been established in the study.
347 370 Richard Trotta
** I've plotted the offsets vs SHMS central momentum. Plots are attached in the attached pdf file.
348
* Richard
349
** The 10.6 GeV heep analysis is going well but the broad momentum distributions are making offsets difficult at times.
350
** 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. 
351
** 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.
352
** attachment:FullAnalysis_Offset_10p6.pdf
353
** attachment:HcanavSimc_scatter_calc.pdf
354 367 Vijay Kumar
 
355 366 Garth Huber
356
---
357
358 354 Garth Huber
h3. Aug 4, 2022
359
360 365 Garth Huber
* Garth/Stephen Notes attachment:mtg_22aug04.txt
361 363 Vijay Kumar
* Vijay
362
** 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  
363 362 Richard Trotta
* Richard
364
** attachment:KaonLTMeeting_8_4_22.pdf
365
** HeeP coin for 10p6 setting is looking pretty good. I still need to make some minor adjustments.
366
** TLT for Lumi is looking much better. The yields also are looking better but cut adjustments need to be made.
367
** HeeP singles have some odd issues that need to be resolved before offset analysis can begin.
368
** Hodoscope calibrations are all done except 6p2.
369 355 Garth Huber
370 354 Garth Huber
---
371
372 350 Richard Trotta
h3. July 14, 2022
373
374 353 Garth Huber
* Garth/Stephen Notes attachment:mtg_22jul14.txt
375 350 Richard Trotta
* Richard
376
** attachment:KaonLTMeeting7_14_22.pdf
377
** The W peaks for SIMC and data are very far offset from one another. This is being investigated.
378 1 Richard Trotta
* Vijay
379 350 Richard Trotta
** Heep Data MC comparo w/o offsets attachment:Heep_coin_no_offsets_vijay_22jul08.pdf
380 349 Garth Huber
381
----
382
383 344 Richard Trotta
h3. June 28, 2022
384
385 349 Garth Huber
* Garth/Stephen Notes attachment:mtg_22jun28.txt
386 344 Richard Trotta
* Richard
387
** Aerogel XY plots vs NPE to check out the tray location and efficiencies.
388
** Hodoscope and calorimeter scripts working. Hodoscope calibration looks good for 10p6 but needs improvement for other beam energies.
389
** HGCer efficiency and plots added to efficiency script. Need to discuss with Vijay on specifics of cuts and efficiencies.
390 1 Richard Trotta
** Started looking in detail at Bill's code. Some scripts and links are missing/broken.
391 348 Jacob Murphy
* Jacob
392
** EDTM Study Report completed, with newer versions of the TLT equations attachment:EDTM_Study_Report.pdf
393
** Graphical Guide for Event Types created to accompany the report, illustrating prescaling with EDTM attachment:Graphical_Guide_Evt_Type.pdf
394 347 Richard Trotta
** Plan to update report file template with new equations and errors soon
395 344 Richard Trotta
396
----
397 282 Vijay Kumar
398 338 Garth Huber
h3. June 14, 2022
399
400 343 Garth Huber
* Garth's Notes attachment:efficiencies_22jun13.txt
401 342 Richard Trotta
* Richard
402
** Fixed issues with simc script and 10p6 Heepcoin data. Issue with data was an offset of 40ns that was corrected halfway through runs.
403
** Aerogel XY plots vs NPE to check out the tray location and efficiencies.
404
** Efficiency plots for all production runs.
405
** attachment:KaonLTMeeting6_14_22.pdf
406 338 Garth Huber
407
----
408
409 1 Richard Trotta
h3. May 31, 2022
410 330 Garth Huber
411
* Garth and Stephen's Notes attachment:mtg_22may31.txt attachment:efficiencies_22jun02.txt
412 340 Garth Huber
* Vijay 
413 332 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 .
414 334 Ali Usman
* Ali
415 355 Garth Huber
** First look at the HEEP COIN Data/SIMC comparison for the 8.2 GeV Kaon-LT data attachment:KaonLT_May31.pdf
416 332 Vijay Kumar
417 314 Garth Huber
----
418
419
h3. May 17, 2022
420
421 325 Garth Huber
422 331 Garth Huber
* Garth and Stephen's Notes attachment:mtg_22may17.txt attachment:efficiencies_22may25.txt
423 318 Richard Trotta
* Richard
424
** Updated heep coin scripts for the farm. Ali is testing them and should be able to get plots soon.
425
** There was a small typo in the simc input file that dramatically changed the shape of the plots. attachment:KaonLTMeeting5_17_22.pdf
426
** Updated version of efficiency columns for the script that will grab efficiencies and various other values. attachment:efficiency_output_list.docx
427 316 Vijay Kumar
* Vijay 
428
** The updated heep coin study (some spectrometers offsets changed) at 3.9 GeV KaonLT data is attached here attachment:Vijay_KaonLT_meeting.pdf .
429 317 Vijay Kumar
430 314 Garth Huber
----
431
432 299 Garth Huber
h3. May 3, 2022
433 303 Vijay Kumar
434 315 Garth Huber
* Garth and Stephen's Notes attachment:mtg_22may03.odt  attachment:efficiencies_22may03.odt
435 308 Ali Usman
* Ali
436
** Fixed all the settings for high Q2 KaonLT data. Also slide on accessing spectrometer angles from CODA
437
** attachment:KaonLT_May_3.pdf
438 309 Richard Trotta
* Richard
439 312 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
440 302 Vijay Kumar
* Vijay 
441 304 Vijay Kumar
** The SIMC simulation study of the PinoLT data at Q2 = 0.38 and 0.42 GeV2 has completed (preliminary) for all settings.
442 305 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 .
443 299 Garth Huber
444 300 Garth Huber
----
445
446 296 Vijay Kumar
h3. April 19, 2022
447 299 Garth Huber
448
* Garth's Notes attachment:mtg_22apr19.txt
449 1 Richard Trotta
* Vijay 
450 296 Vijay Kumar
** SIMC simulation updates at Q2 = 2.7, 3.6 and 4.5 GeV2. attachment:Vijay_KaonLT_Meeting_Apr19_2022.pdf  
451 298 Vijay Kumar
452 296 Vijay Kumar
----
453
454
h3. April 06, 2022
455 306 Vijay Kumar
456 355 Garth Huber
* Garth's Notes attachment:mtg_22apr06.txt
457 306 Vijay Kumar
* Ali 
458 293 Garth Huber
**  attachment:Analysis_Update_Apr_6.pdf 
459 290 Richard Trotta
* Richard 
460
** attachment:KaonLTMeeting4_6_22.pdf
461 288 Richard Trotta
** The analysis of the 10.6 GeV heep coin/singles settings are still ongoing. 
462
** There were some issues getting the replays working for the singles runs and the analysis. Things finally were sorted out yesterday (and this morning).
463
** The SHMS heep singles are presented. Overall, they look fine. There are still some things to sort out.
464 291 Richard Trotta
** The HMS heep singles are still running.
465 282 Vijay Kumar
* Vijay 
466 306 Vijay Kumar
** The simulation study of the 4.9 GeV KaonLT data has completed.
467 288 Richard Trotta
** This energy has left, center and right settings data. All these settings look fine. 
468 295 Garth Huber
** See the pdf for more info. attachment:Vijay_KaonLT_Meeting_Apri_06_2022.pdf  
469 284 Vijay Kumar
470 1 Richard Trotta
----
471 284 Vijay Kumar
472 281 Richard Trotta
h3. March 23, 2022
473 1 Richard Trotta
474 281 Richard Trotta
* Garth's Notes attachment:mtg_22mar23.txt
475 1 Richard Trotta
* Richard 
476 278 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
477
** Heep singles are next up. There have been issues replaying these runs but Ali may have fixed this issue with his parameter file changes.
478 280 Nathan Heinrich
* Nathan
479
** 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.
480 278 Richard Trotta
** after changing back to 1 discrepancy resolved. Slides: attachment:Mode10Update_2022Mar23.pdf
481
482
---
483
484
h3. March 9, 2022
485
486
* Garth's Notes attachment:mtg_22mar09.txt
487 355 Garth Huber
* Regina March 4 meeting on pion leak through in (e,e'K+) analysis attachment:grp_22mar04.txt
488 267 Richard Trotta
* Richard 
489
** Vijay's scripts are working and Richard reproduced some of his previous plots. attachment:KaonLTMeeting3_9_22.pdf
490
** The next step is to do a full analysis of the 10.6 GeV heep coin/singles data.
491 1 Richard Trotta
* Nathan
492 277 Garth Huber
** Update on the current state of mode 10: attachment:Mode10Update_2022Mar9.pdf 
493
** See Mark Jones' slide on changes to hcana: https://redmine.jlab.org/attachments/1424
494 269 Richard Trotta
495 261 Garth Huber
---
496
497 271 Garth Huber
h3. February 23, 2022
498 273 Garth Huber
499 271 Garth Huber
* Garth's Notes attachment:mtg_22feb23.txt
500
501 272 Garth Huber
---
502
503 244 Vijay Kumar
h3. January 26, 2022  
504
505 271 Garth Huber
* Garth's Notes attachment:mtg_22jan26.txt
506 253 Vijay Kumar
* Vijay, Heep updates from the PionLT experiment. attachment:Analysis_Updates_Jan26_2022.pdf 
507 251 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   
508 252 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
509 246 Vijay Kumar
** The 3.6 and 4.5 GeV data do not have elastic data.
510 250 Vijay Kumar
** Coin: 2.7, 3.6 and 4.5 GeV. attachment:Analysed_2p7.pdf attachment:Analysed_3p6.pdf attachment:Analysed_4p5.pdf   
511 254 Nathan Heinrich
* Nathan, Short update on the Mode 10
512 255 Nathan Heinrich
** Short update. May need to update hcana to change software voltage threshold. attachment:2022-01-26NathanHeinrich.pdf
513 256 Jacob Murphy
* Jacob, EDTM Study 2
514 260 Jacob Murphy
** EDTM study with beam, taken during LUMI Scan 3
515 255 Nathan Heinrich
** Early look at 3rd EDTM Study
516 248 Vijay Kumar
** Additional notes on increased deadtime in SHMS at High Current. attachment:PionLT_EDTM_Study2_Analysis.pdf
517 113 Richard Trotta
518 222 Richard Trotta
----
519 200 Richard Trotta
520 236 Garth Huber
h3. January 12, 2022  
521
522
* Garth's Notes attachment:mtg_22jan12.txt
523
* Junaid
524
** PID study
525 240 Vijay Kumar
* Vijay
526 238 Vijay Kumar
** Heep-singles study attachment:Analysis_Updates1_Jan12.pdf 
527 236 Garth Huber
* Nathan
528
** Mode-10 data variables
529
530 243 Richard Trotta
----
531
532 234 Garth Huber
h3. January 5, 2022  
533
534 235 Garth Huber
* Garth's Notes attachment:mtg_22jan05.txt
535 221 Richard Trotta
* Stephen
536
** Stephen was updating GitHub but UTIL_BATCH has some permissions issues
537
* Richard
538
** Update to KLT task schedule
539
** Meeting between Richard and Vijay to discuss task breakdown Friday, January 7th at 11 am EST
540
** EDTM study 2 will done sometime this weekend
541 223 Richard Trotta
* Vijay
542
** Breakdown of HEEP single analysis for low Q2 data
543 224 Richard Trotta
*** Shapes of SIMC and data are very off
544
*** It seems to be a systematic issue on Vijay's part because the same issue is being seen in PLT data
545 231 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.  
546 229 Vijay Kumar
** https://redmine.jlab.org/attachments/1376
547 228 Vijay Kumar
** https://redmine.jlab.org/attachments/1375
548 225 Nathan Heinrich
* Nathan
549
** Update on fADC mode 10 studies and the fADC deadtime studies
550
** https://redmine.jlab.org/attachments/1372
551 226 Jacob Murphy
* Jacob
552
** Summary of EDTM analysis so far in the PionLT experiment
553 227 Jacob Murphy
** https://redmine.jlab.org/attachments/1373
554 242 Richard Trotta
555 221 Richard Trotta
----
556
557
h2. 2021 Meetings
558
559 220 Richard Trotta
h3. August 4, 2021
560
561
* Richard
562
** 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).
563
** Issues with the COIN are seen but may be a replay issue.
564
565
----
566
567 217 Richard Trotta
h3. July 21, 2021
568
569 218 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1250/KaonLTMeeting7_14_21.pdf
570 217 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.
571
572
----
573
574 215 Richard Trotta
h3. May 12, 2021
575
576
* Richard
577
** 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.
578
579
----
580
581 213 Richard Trotta
h3. April 28, 2021
582
583
* Richard
584 214 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.
585 213 Richard Trotta
586
----
587
588 211 Richard Trotta
h3. April 14, 2021
589 212 Richard Trotta
590 211 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_4_14_21.pdf
591
** 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). 
592
** Some PionLT carbon runs were looked at but there are still some issues (either cut or pathing related).
593
594
----
595
596 203 Richard Trotta
h3. March 31, 2021
597
598 206 Richard Trotta
* Richard
599 209 Richard Trotta
** Luminosity studies
600
*** PionLT carbon runs
601
**** Still having issues getting decent results. I think I am just missing a definition somewhere that I need to track down
602
*** Uncertainties
603
**** Easy to do, I just need to put it into my script
604
** Explicit PS calculations
605
*** I have gotten a rough script working for very simple runs (ie low rate, single spectrometer, calibration runs)
606
*** I am trying to expand to lumi singles runs, things get a bit more complex so I am just working out the trigger correlations
607
** Pass 2 runs
608
*** DEF-files
609
**** I checked out the DEF-files for our combination of the nested files
610
**** There are a lot a files (~150!!!!) and may be hard to track so next week *we should make a flowchart together*
611
**** Working on my list of branches for the next replay
612
***** Mainly just working on my list of branches for the explicit PS calculations
613
***** *Everyone should have a list of these branches by next mini-meeting (4/7/21)*
614 210 Stephen Kay
* Stephen
615
** Updated DEF-File for the "full" replay
616
*** Can't remove NData brances, Mark says they won't take up too many resources anyway
617
*** Removed individual PMT info and raw info for many detectors, reduced file size by factor ~2
618
** Updating DEF-files/scripts for calibrations as part of PionLT prep
619
** Will focus on DEF-file/DEF-cut file updates over next week
620
*** Will investigate HeeP replays over rest of this week.
621 207 Richard Trotta
622 203 Richard Trotta
----
623
624 201 Stephen Kay
h3. March 24, 2021
625
626
* KaonLT Mini Meeting focusing on Pass2 preparation
627
* "Task summary from Richard":https://redmine.jlab.org/projects/kltexp/wiki/Replay_2_Tasks
628
629
----
630
631 200 Richard Trotta
h3. March 17, 2021
632
633
* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_3_17_21.pdf
634 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.
635 202 Stephen Kay
* Mini meeting March 24th @ 4:30 EDT
636 201 Stephen Kay
637 200 Richard Trotta
----
638 194 Richard Trotta
639 199 Richard Trotta
h3. March 3, 2021
640
641
* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_3_3_21.pdf
642
** 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). 
643
** 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.
644
645
----
646
647
648 196 Richard Trotta
h3. February 17, 2021
649 194 Richard Trotta
650
* Richard
651
** 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.
652 198 Nathan Heinrich
* Nathan
653
** Presented an update on the Hodoscope Calibrations: https://redmine.jlab.org/attachments/download/1196/HodoscopeUpdate_2021Feb17.pdf
654
655 194 Richard Trotta
----
656
657 196 Richard Trotta
h3. February 3, 2021
658 193 Richard Trotta
659
* Richard
660
** A table with the aerogel efficiency for kaons is being created. It will be expanded to other particles and detectors.
661
662
----
663
664 196 Richard Trotta
h3. January 20, 2021
665 191 Richard Trotta
666
* "Richard":https://redmine.jlab.org/attachments/download/1172/KaonLTMeeting_1_20_21.pdf
667
** 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.
668
669
----
670
671 196 Richard Trotta
h3. January 6, 2021
672 190 Richard Trotta
673
* "Richard":https://redmine.jlab.org/attachments/download/1153/KaonLTMeeting1_6_21.pdf
674 322 Richard Trotta
** Analyzed most of the luminosity scans. There are a few issues I am investigating still which seem to be run related. 
675 186 Richard Trotta
676
----
677
678
h2. 2020 Meetings
679
680 185 Richard Trotta
h3. December 2, 2020
681
 
682
* Ali and Richard
683
** 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.
684
685
----
686
687 180 Richard Trotta
h3. November 18, 2020
688
689 183 Richard Trotta
* "Carlos":https://redmine.jlab.org/attachments/download/1103/LiveTime_Study_cyero.pdf
690 181 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.
691 180 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1101/KaonLTMeeting11_18_20.pdf
692
** Scaler analysis matches Carlos' code now. Overall significant improvements were made through some cut adjustments and incorrect variable definitions.
693
* Stephen
694 182 Richard Trotta
** Updated the hallc_replay_lt with parameter files for all coin peaks.
695 180 Richard Trotta
696
----
697
698 178 Richard Trotta
h3. November 4, 2020
699 321 Richard Trotta
 
700 178 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1092/KaonLTMeeting11_4_20.pdf
701 321 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. 
702 178 Richard Trotta
703 141 Stephen Kay
----
704
705 170 Richard Trotta
h3. October 28, 2020
706
707
* Ali
708 177 Richard Trotta
** Went over some of his tracking procedures for the report file implementation
709 172 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1091/KaonLTMeeting10_28_20.pdf
710 173 Richard Trotta
** Luminosity analysis continues. There are still some issues but things have improved a bit.
711 171 Stephen Kay
* "Stephen":https://redmine.jlab.org/attachments/download/1090/KaonLT_Meeting_28_10_20.pdf
712
** Discussion of CT peak analysis, progress and outline of what's left to do with this
713 174 Richard Trotta
* Vijay
714 176 Richard Trotta
** Dry run for Mark's hallc meeting tomorrow (10/29)
715 170 Richard Trotta
716
----
717
718 164 Richard Trotta
h3. October 14, 2020
719
720 168 Richard Trotta
* Ali
721 164 Richard Trotta
** Working through the REPORT_FILES template to get everything working and outputting proper information.
722
* "Richard":https://redmine.jlab.org/attachments/download/1085/KaonLTMeeting_10_14_20.pdf
723
** Updates on lumi scans. There are many issues from Scalers to Tracking that need to be resolved.
724 167 Richard Trotta
* Stephen
725 164 Richard Trotta
** He has included a demo for using the python analysis script in the README.
726 1 Richard Trotta
727 164 Richard Trotta
----
728
729 161 Richard Trotta
h3. September 23, 2020
730
731
* "Richard":https://redmine.jlab.org/attachments/download/1078/KaonLTMeeting_9_23_20.pdf
732
** 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. 
733
* Stephen
734 162 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.
735
* Petr
736
** Data fitting algorithm based on E.H. Bellamy paper. Extracts PMT spectra from ROOT file and makes a 1D projection histogram.
737 161 Richard Trotta
738
----
739
740 149 Richard Trotta
h3. September 9, 2020
741 156 Richard Trotta
742
* Richard
743 157 Richard Trotta
** Still working on run list, GUI checks
744 156 Richard Trotta
* "Stephen":https://redmine.jlab.org/issues/567
745
** New slim replay scripts and full replay scripts updated
746
* Ali
747
** Him and Stephen found an issue (already aware of) with zeros in the parameter files using Mark's hcana changes
748
** Need to be vigilant of crashed replays because this is probably the issue
749 158 Richard Trotta
* Vijay
750 156 Richard Trotta
** Nearly finished with HGcer calibrations
751 1 Richard Trotta
752 156 Richard Trotta
----
753
754
h3. August 26, 2020
755
756 149 Richard Trotta
*Links to talks->* "Ali":https://redmine.jlab.org/issues/483 "Vijay":https://redmine.jlab.org/issues/479
757 154 Richard Trotta
758
* Richard
759
** 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.
760
* Stephen
761
** Updated on RF times. There were a few issues with some runs, but overall most are finished.
762
* Ali
763
** 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)
764
* Vijay
765 150 Richard Trotta
** Updated the SHMS HGCher analysis. The calibrations are coming along, but a little more work needs to be finished up.
766 1 Richard Trotta
767 149 Richard Trotta
----
768
769 144 Richard Trotta
h3. July 29, 2020
770 147 Stephen Kay
771 148 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
772 146 Stephen Kay
773 155 Richard Trotta
* Stephen
774
** Updates on scripts to set pedestal defaults and AdcTdc offsets after hcana change
775
* Richard
776
** Updated plan and schedule for the analysis going forward
777 1 Richard Trotta
778 144 Richard Trotta
----
779
780 139 Richard Trotta
h3. July 8, 2020
781 1 Richard Trotta
782 139 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
783 150 Richard Trotta
784 139 Richard Trotta
----
785
786 132 Richard Trotta
h3. June 24, 2020
787
788 143 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
789 132 Richard Trotta
790
----
791
792 129 Richard Trotta
h3. June 9, 2020
793
794 135 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
795 129 Richard Trotta
796
----
797
798 125 Richard Trotta
h3. May 27, 2020
799
800 126 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
801 128 Richard Trotta
802 125 Richard Trotta
----
803
804 118 Stephen Kay
h3. May 13, 2020
805 124 Richard Trotta
806 138 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
807 1 Richard Trotta
808 121 Richard Trotta
----
809
810 111 Richard Trotta
h3. April 29, 2020
811
812 138 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
813 106 Richard Trotta
814 1 Richard Trotta
----
815 106 Richard Trotta
816 111 Richard Trotta
h3. April 15, 2020
817 104 Richard Trotta
818 102 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/attachments/download/977/KaonLTMeeting_4_15_20.pdf
819 105 Richard Trotta
820 102 Richard Trotta
----
821 95 Stephen Kay
822 111 Richard Trotta
h3. April 1, 2020
823 100 Stephen Kay
824 138 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
825 101 Richard Trotta
826 41 Stephen Kay
----
827 93 Richard Trotta
828 111 Richard Trotta
h3. March 18, 2020
829 93 Richard Trotta
830
*Links to talks->* "Richard's EIC Temple Draft 2":https://redmine.jlab.org/attachments/download/942/DRAFT2_mesonSF_EIC_Temple.pdf
831 1 Richard Trotta
832 93 Richard Trotta
----
833 91 Richard Trotta
834 111 Richard Trotta
h3. March 11, 2020
835 92 Richard Trotta
836 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
837 94 Richard Trotta
838 91 Richard Trotta
----
839 88 Richard Trotta
840 111 Richard Trotta
h3. Feb 26, 2020
841 90 Richard Trotta
842
* Peter's changes to hcana should be coming soon. Richard will check with Mark when he is down there for an update.
843
* Need to incorporate the latest "BCM updates":https://hallcweb.jlab.org/doc-public/ShowDocument?docid=1034 from Dave Mack.
844 1 Richard Trotta
* Richard should look at the luminosity scalar analysis before and after the BCM changes once he gets his script working again.
845 88 Richard Trotta
**  He is checking with Mark about this while he is down in jlab. 
846 1 Richard Trotta
847
----
848 86 Richard Trotta
849 111 Richard Trotta
h3. Feb 10, 2020 
850 87 Richard Trotta
851 86 Richard Trotta
----
852 1 Richard Trotta
853 111 Richard Trotta
h3. Jan 22, 2020
854 83 Richard Trotta
855
*Links to talks->* "Richard's Hall C Winter Talk Draft 1":https://redmine.jlab.org/attachments/download/937/KaonLTHallC_WinterTalk2020_Draft1.pdf
856 85 Richard Trotta
857 1 Richard Trotta
----
858 83 Richard Trotta
859 111 Richard Trotta
h3. Jan 15,2020
860 81 Richard Trotta
861 82 Richard Trotta
*Links to talks->* "Richard's Hall C Winter Talk Outline":https://redmine.jlab.org/attachments/download/936/KaonLTHallC_WinterTalk2020.pdf
862 81 Richard Trotta
863
----
864 78 Richard Trotta
865 111 Richard Trotta
h3. Jan 8,2020
866 78 Richard Trotta
867 1 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/76
868 79 Richard Trotta
869 1 Richard Trotta
* Richard
870
** PID efficiency script is coming together
871
*** Tighter cuts and cuts on timing, beta, etc. will be needed for cleaner electron cuts
872
*** 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.
873
874 80 Richard Trotta
----
875 113 Richard Trotta
876 112 Richard Trotta
h2. 2019 Meetings
877 80 Richard Trotta
878 141 Stephen Kay
----
879
880 111 Richard Trotta
h3. Dec 17,2019
881
882 77 Richard Trotta
Reminder: Mark Jones' commissioning analysis meetings are bi-weekly and announced by Mark
883
884
* Stephen
885
** Number of passes finished for HMS calorimeter
886
*** Still wiggles in all passes
887
** Finished his report on calibrations, "DC and Calorimeters":https://redmine.jlab.org/documents/74
888
** 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
889
*** CUA will be putting together a similar list
890 1 Richard Trotta
891 77 Richard Trotta
* Richard
892
** Fixed one error issue with SHMS calorimeter calibration code (discussed Dec 10th meeting), but still have one error
893
** PID efficiency script plots are complete, but still some questions he needs to work out before a final version
894
*** Eventually need to include tracking into PID efficiencies
895
** Pete brought up the question for a number of multi-hits we are getting
896
*** (Dead Time)+(Trigger efficiency)-EDTM
897
898
----
899 72 Richard Trotta
900 111 Richard Trotta
h3. Dec 10,2019
901 72 Richard Trotta
902 74 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/73
903
904
* Garth and Stephen were in the most recent SIDIS meeting
905
** Wit had lots of hcana changes but they seem to be critical to our work 
906
*** Changes such as new detector classes
907 1 Richard Trotta
** Hopefully Wit will present these in the next commissioning meeting
908
909 77 Richard Trotta
* Stephen improved wiggles but still prevalent
910 74 Richard Trotta
911
* Richard finished HGCer calibrations, he concluded that the online parameters are sufficient
912
** He also has been looking at SHMS calorimeter calibrations but has had issues running the scripts. Most likely a pathing issue.
913
** The "tasks":https://redmine.jlab.org/projects/kltexp/wiki/Analysis_Tasks page has been updated with a section for efficiencies. 
914
*** A PID efficiency script is currently being developed and hopefully should have some plots for our next meeting.
915
916 75 Richard Trotta
----
917 74 Richard Trotta
918 111 Richard Trotta
h3. Nov 26,2019
919 71 Richard Trotta
920
*Links to talks->* "Richard":https://redmine.jlab.org/issues/480
921
922
* Stephen
923
** DC SHMS, small-angle has poor performance
924
*** Tighter cuts or PID (currently only looks for electrons)
925
** Vardan said calorimeter wiggles are an ongoing issue with no current solution
926
927
* Richard
928 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.
929 71 Richard Trotta
*** Richard will pick up looking at the HGCer calibrations from Vijay's scripts. 
930
*** Richard will also be looking at the SHMS calorimeter and with the suggestion of getting some negatively polarized SHMS runs from Hem.
931
** The HMS Cherenkov is finished with the conclusion that the calibrations from the online runs are good
932
** We can begin looking forward towards efficiencies. 
933
*** Garth suggested that looking at PID may be an advantageous first steps. Precise definitions of these PIDs will need to be logged.
934
*** Clear notes on efficiencies steps will be needed. They will need to be redefined multiple times in multiple ways. 
935
936
* Hem
937
** Has been looking at the calorimeter as well. 
938 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.  
939
940
----
941
942 111 Richard Trotta
h3. Nov 19,2019
943 1 Richard Trotta
944 70 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
945
946
* Richard
947
** Finished up TDC cut paper going through the procedure (found "here":https://redmine.jlab.org/issues/500)
948
** Needed to add Carlos pre-trigger designs to an appendix for the paper which clarifies the introduction section
949
950
* Stephen
951
** Issues with DC calibration for only a few runs during each run period
952
** "wiggles" in HMS calorimeter calibrations for some runs
953
*** few runs where HMS cal totally failed (which was dependent on initial parameters)
954
*** Spring looked worse than the rest (surprisingly), but this may be because online calibration wasn't great
955
956 2 Richard Trotta
----
957 68 Richard Trotta
958 111 Richard Trotta
h3. Nov 5,2019
959 68 Richard Trotta
960
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500
961
962
* Timing update (Stephen)
963
** Reference times between Richard and Stephen are very similar and the GitHub is updated accordingly
964
** Richard is going to add the trigger time cuts once the fall runs are finished (by end of week)
965
** First pass of detector reference time parameter files finished
966 1 Richard Trotta
967 68 Richard Trotta
* Peter's hcana code (Richard and Stephen)
968
** 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
969
*** Richard has emailed Peter about the issue with no response yet (follow-up soon)
970
** 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.
971
972
* Calibrations were decided to be done once per shift
973
974
* Next meeting schedule...
975 127 Richard Trotta
** Small meetings Nov 12 and Nov 19 (at 3pm EST) so Richard and Stephen can iron out the timing and calibrations
976
** November 26 (at 3pm EST) will be a larger meeting. 
977 68 Richard Trotta
*** This is the rough deadline we made for finishing up calibrations. 
978
*** 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!!
979
980
----
981
982 111 Richard Trotta
h3. Oct 22,2019
983 62 Richard Trotta
984 64 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
985 62 Richard Trotta
986 65 Richard Trotta
* SHMS Reference Time Amplitude Cuts(Stephen)
987
** Extra peaks in HG from cross-talk and "ghost-bands" due to ADC screw up
988
*** cuts applied on SHMS ADC ref time amplitude (greater than zero) done before any further event selection and histogram filling
989
** This is a temporary fix to "ghost-bands" and cross talk
990
*** Although for HG there is still a small peak. The hodoscope is fine.
991
** The time window is easier to set now.
992
** DC has been fine (since it uses TDC)
993
*** DC calibrations should be good to complete, other detectors need more fixes (i.e. the remaining "ghost-band")
994
** Hodoscope still bad but this might be because of that "ghost-band", needs to be further investigated
995
996 1 Richard Trotta
* Peter's hcana fixes for reference time (Richard)
997 67 Richard Trotta
** Peter implemented changes to hcana
998
** Two major issues...
999 1 Richard Trotta
## Amplitude goes to null and integral is low or negative which causes a rate-dependent efficiency. 
1000 67 Richard Trotta
*** Peter has used the average pulse value acquired over a large sample of runs for each detector. 
1001 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)
1002 67 Richard Trotta
*** Peter created a routine to find the best offset by means of matching TDC and ADC
1003
** Richard has been checking for bugs in the code. 
1004
*** It seems to be ready to implement, Richard emailed Peter for confirmation on the implementation in our group directory
1005
1006 1 Richard Trotta
* Calibration of HMS detectors when the timing is agreed upon by Stephen and Richard.
1007 67 Richard Trotta
** Besides hodoscope which still has an issue with the script
1008 65 Richard Trotta
** Stephen and Richard are having a meeting late next week to determine time window values
1009 62 Richard Trotta
*** These will be relatively final, but on the wider side if adjustments need to be made in the future
1010
1011 1 Richard Trotta
-----
1012 61 Richard Trotta
1013 111 Richard Trotta
h3. Sep 24,2019
1014 61 Richard Trotta
1015
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
1016 1 Richard Trotta
1017 61 Richard Trotta
-----
1018 1 Richard Trotta
1019 111 Richard Trotta
h3. Sep 10,2019
1020 59 Vijay Kumar
1021
*Links to talks->* "Stephen":https://redmine.jlab.org/documents/69 "Ali":https://redmine.jlab.org/documents/72 "Richard":https://redmine.jlab.org/issues/500
1022 1 Richard Trotta
1023
-----
1024 55 Stephen Kay
1025 111 Richard Trotta
h3. August 26, 2019
1026 55 Stephen Kay
1027
*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
1028 1 Richard Trotta
1029 54 Richard Trotta
----
1030
1031 111 Richard Trotta
h3. June 21, 2019
1032 54 Richard Trotta
1033 1 Richard Trotta
*Links to talks->* "Hallc Talk Outline":https://redmine.jlab.org/documents/60 
1034 54 Richard Trotta
1035 42 Stephen Kay
----
1036
1037 111 Richard Trotta
h3. June 14, 2019
1038 1 Richard Trotta
1039 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
1040 42 Stephen Kay
1041
1042 35 Stephen Kay
----
1043 1 Richard Trotta
1044 111 Richard Trotta
h3. June 4, 2019
1045 36 Vijay Kumar
1046 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
1047 35 Stephen Kay
1048 1 Richard Trotta
1049 35 Stephen Kay
----
1050 1 Richard Trotta
1051 111 Richard Trotta
h3. May 21, 2019
1052 1 Richard Trotta
1053
*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
1054 35 Stephen Kay
1055
----
1056 1 Richard Trotta
1057 111 Richard Trotta
h3. May 14, 2019
1058 1 Richard Trotta
1059 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
1060 1 Richard Trotta
1061 35 Stephen Kay
----
1062 1 Richard Trotta
1063 111 Richard Trotta
h3. April 30, 2019
1064 1 Richard Trotta
1065
*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
1066 35 Stephen Kay
1067 1 Richard Trotta
----
1068
1069
h3. February 4, 2019
1070
1071
*Links to talks->* "Richard":https://redmine.jlab.org/documents/43 "Stephen":https://redmine.jlab.org/documents/44
1072
1073
----
1074 113 Richard Trotta
1075 112 Richard Trotta
h2. 2018 Meetings
1076 141 Stephen Kay
1077
----
1078 111 Richard Trotta
1079
h3. August 21, 2018
1080
1081 1 Richard Trotta
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
1082 35 Stephen Kay
1083 1 Richard Trotta
----
1084 35 Stephen Kay
1085 111 Richard Trotta
h3. August 8, 2018
1086 35 Stephen Kay
1087
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
1088 1 Richard Trotta
1089
----
1090 35 Stephen Kay
1091 111 Richard Trotta
h3. August 3, 2018
1092 1 Richard Trotta
1093 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383
1094
*Links to talks->*
1095 1 Richard Trotta
1096 35 Stephen Kay
----
1097 1 Richard Trotta
1098 111 Richard Trotta
h3. July 11, 2018
1099 1 Richard Trotta
1100 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383 #384
1101 1 Richard Trotta
1102 35 Stephen Kay
*Action items:*
1103 1 Richard Trotta
1104 35 Stephen Kay
* Update run plan, e.g. add prescales (Garth)
1105
* Check on details of: magnet cycling procedure, minimum angles, MCC fringe field steering, beam energy measurements, optics checks (Tanja)
1106
* Identify additional run coordinators (Tanja)
1107
* Encourage collaborators to take shifts, e.g. FIU (Pete)
1108
* Draft email about shifts etc. to collaboration (Tanja)
1109
* Develop diagnostic scripts and kaonLT specific (Richard, Ryan)
1110
* Continue documentation development, e.g. checklist, shift taker instructions, HowTo or link to generic Hall C HowTo, task list, web page (Richard, Garth)
1111 1 Richard Trotta
1112 35 Stephen Kay
*Discussions:*
1113
1114
* 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
1115
* HGC: waiting for re-installation
1116
* Trigger checkout: main items to keep in mind: fADC thresholds, timing HMS/SHMS - leading arm, possible rate limitations
1117 1 Richard Trotta
* Shifts
1118
* Diagnostics scripts and documentation
1119
* Personnel schedules
1120
1121
----
1122
1123 111 Richard Trotta
h3. June 28, 2018
1124 1 Richard Trotta
1125
*Links to talks->* "Richard":https://redmine.jlab.org/documents/34
1126
1127
*Action Items:*
1128
1129
* Develop and post shift schedule. Send out request. Find out who is KAONLT liaison (Tanja)
1130
* Contact potential run coordinators. (Tanja)
1131
* Aerogel tray exchange for start of experiment and coordination of future exchanges (Vladimir)
1132
* Update runplan and prepare documents needed for shift crew, e.g. run sheets (Garth)
1133
* Set up a web page to collect and link from Redmine - How-To documents, initial calibrations, etc. (Garth, Richard)
1134
* 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)
1135
* Develop trigger/detector checkout plan (Tanja, initial draft)
1136
** Are all experts available at run start, experts needed: coincidence timing , Harp Scans, BCM calibrations, ...
1137
* 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)
1138
* Find out if all aerogel trays needed for experiment can be stored inside Hall C to avoid having to open truck ramp (Vladimir)
1139
1140
*Analysis Updates:*
1141
1142
* Ryan 
1143
** resolving differences between his analysis and Richard's
1144
1145
* Richard
1146
** 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
1147
** 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.
1148
1149
----
1150
1151 111 Richard Trotta
h3. May 31, 2018
1152 1 Richard Trotta
1153 35 Stephen Kay
*Links to talks->* "Samip":https://redmine.jlab.org/documents/30
1154 1 Richard Trotta
1155 35 Stephen Kay
----
1156 1 Richard Trotta
1157 111 Richard Trotta
h3. May 17, 2018 
1158 1 Richard Trotta
1159 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
1160 2 Richard Trotta
1161 35 Stephen Kay
* Luminosity scans (Richard, Ryan)
1162 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
1163 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
1164
** discussion about pre-scale factors
1165 1 Richard Trotta
1166 35 Stephen Kay
* Discussion about Richard's script extracting and printing information from report files and trees including histograms
1167
** Add option for looking at yields with cuts on cointime, target window, and missing mass
1168
** Add option to look at real peak vs. background level
1169 1 Richard Trotta
1170 35 Stephen Kay
* H(e,e'p) kinematics investigation for fall run (Samip)
1171
** 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
1172 1 Richard Trotta
1173 35 Stephen Kay
* *Action Items*
1174
** Luminosity scans at low rates from January (Richard)
1175
** Luminosity scans from April with corrected efficiencies, e.d. DT (Ryan)
1176
** H(e,e'p) and H(e,e') kinematics for upcoming Kaon LT run (Samip)
1177
** Kaon LT detailed run plan (Garth, Pete, Tanja)
1178
** Preparations, e.g. report files, diagnostic histograms and real time monitoring, shift worker instructions, optimization of trees (all)
1179 1 Richard Trotta
1180
----
1181
1182 111 Richard Trotta
h3. May 10, 2018
1183 35 Stephen Kay
1184 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
1185 35 Stephen Kay
1186
* Luminosity Scans January 2018 (Richard)
1187
** Tracking-based analysis for Runs 1415-1423, .. for now focus on HMS, typical HMS S1X rates are <
1188
** Cuts applied: PID for electrons (Cer, Cal), acceptance (delta)
1189
** Efficiency calculation was investigated in detail and applied using scalers from trees
1190
** Results for carbon (normalized to 30uA) show large variation - need to understand
1191
** *Next steps:*
1192
*** Double check calculation of computer lifetime, look for differences in TRIG and PRETRIG scalers
1193
*** Check stability of pre-scale (Ryan saw changes within runs)
1194
*** Check if detector calibrations for runs are implemented correctly
1195
*** Analyze with Ryan's cuts
1196 1 Richard Trotta
1197 35 Stephen Kay
* Luminosity Scans April 2018 (Ryan)
1198
** Confirms Richard's earlier finding that scaler-based analysis is not reliable and that it's best to analyze event-by-event
1199
** Tracking-based analysis for runs 2073-2095
1200
** Cuts applied: PID for electrons (TOF, Cal, Chi2), acceptance (delta and angles), BCM4a
1201
** Included most recent detector calibrations in replay of these runs
1202
** Efficiencies from report file mainly, may need to update tracking efficiency implementation
1203
** Found that calculations of computer deadtime requires different set of scalers for runs from January to those from April 2018
1204
** Results show carbon yields consistent with unity within error (0.5% error bars), and boiling for hydrogen and deuterium
1205
** *Next steps:*
1206 5 Richard Trotta
*** Check tracking efficiency
1207 35 Stephen Kay
1208
* *Global comments on Luminosity Scans (so far)*
1209 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.
1210 35 Stephen Kay
** Efficiencies in report files need to be updated, e.g. CPU deadtime (Richard)
1211
** Check if BCM4a is the one closest to the target - get a map of the hall (Richard, Ryan)
1212
** Uncertainties on current
1213
** Detector calibrations
1214 1 Richard Trotta
** HMS vs. SHMS
1215 35 Stephen Kay
1216
* eK+ coincidence time from SIDIS Spring 2018 run (Samip)
1217
** Worked with Mark Jones on coincidence time calculation - now available in hcana (see Samip's 10 May 2018 email for more details)
1218
** runs used in this analysis: 3423 with Q2=3.1 GeV2 and W=2.78 GeV
1219
** Coincidence time spectrum shows peak separations >2 ns corresponding to different accelerator frequency
1220
** Missing mass spectra: Kaon peak clearly visible, also see pions even after cuts
1221
** Found that pions appear localized in phase space - seems to be due to end point in kinematic phase space
1222 1 Richard Trotta
** *Next steps:*
1223 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)
1224 35 Stephen Kay
1225
* Yield normalized ratios from SIDIS (Hem)
1226
** Yield ratios of data to MC match well in shape, but normalization seems not quite right
1227
** *Next steps:*
1228 4 Richard Trotta
*** Check if efficiencies, currents, run time etc. are taken into account correctly
1229
1230
----
1231 35 Stephen Kay
1232 111 Richard Trotta
h3. April 26, 2018
1233 4 Richard Trotta
1234 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
1235 4 Richard Trotta
1236 35 Stephen Kay
* Discussion luminosity scan analysis (earlier scan) - Richard
1237
** 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
1238
** Notes on efficiencies in report file:
1239
*** DT (EDTM) is not electronic deadtime. Instead use for now 50ns* trigger rate for HMS and 100ns* trigger rate for SHMS
1240
*** Cherenkov efficiency seems low (check if that is due to PID, thresholds, pi/e, etc)
1241
*** Tracking efficiency needs to be checked
1242
*** 3/4 trigger efficiency seems ok
1243
* Discussion luminosity scan analysis (later scan) - Ryan
1244
** Fewer carbon runs than earlier scan
1245
** Shown is a tracking-based analysis using data from the ROOT trees
1246 111 Richard Trotta
** First results for carbon, LH3, and LD2, but efficiencies need to be checked
1247 35 Stephen Kay
* SIDIS analysis - Hem
1248
** Shown is a data/MC comparison for different kinematic settings. Agreement in shape is very good. Normalization has yet to be applied.
1249
** Discussion about agreement in z and apparent offset - relation of this offset with spectrometer offset
1250
* Analysis of exclusive events in SIDIS - Samip
1251
** Shown is a look at the first kaon events in exclusive limit of SIDIS data
1252
** Ongoing work on implementing coincidence time into tree
1253
* Discussion of run plan, and in particular possible low Q2/low energy
1254
** Assume that kaon low Q2=0.4 already included - have kinematics with specified beam energies, if needed
1255
** 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
1256
** Garth will put this together in a draft email
1257
1258 12 Richard Trotta
----
1259
1260 111 Richard Trotta
h3. March 29, 2018
1261 12 Richard Trotta
1262 35 Stephen Kay
*Links to talks->* "Richard, ":https://redmine.jlab.org/documents/16 "Samip":https://redmine.jlab.org/documents/27
1263 13 Richard Trotta
1264 35 Stephen Kay
* Details of adding points to fall run plan - will be ready sooner, likely in week of 4/1 (Garth, Samip, Tanja)
1265
* Luminosity scans (Ryan, Andres, Richard, Pete)
1266
* Macros, SIDIS analysis (Hem, Anashe)
1267
* Elastic data (TBD)
1268
1269 14 Richard Trotta
----
1270 18 Richard Trotta
1271 111 Richard Trotta
h3. February 22, 2018
1272 18 Richard Trotta
1273 35 Stephen Kay
*Links to talks->* "Andres":https://redmine.jlab.org/documents/19
1274 18 Richard Trotta
1275 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.
1276
* Brief description of Samip's work - working on coincidence timing decoding with JLab staff and re-optimization of kinematics
1277
* Discussion of Richard's slides on run plan kinematics and preparations -
1278
** 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
1279
** 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
1280
** for each setting will need 1-2 shifts for calibrations - need to negotiate with other experiments in run group
1281
** kinematics plots W-Q2 show that still need to do some optimization
1282
** run sheets: include raster size, update coincidence count labeling, and carbon target labeling
1283
* Discussion of next meeting. Garth at JLab 8-16 March - might have meeting during that time.
1284 26 Richard Trotta
1285 35 Stephen Kay
* *Action Items:*
1286
** Post slides/notes from this meeting and procedure to set up hcana in Redmine (Tanja)
1287
** Update run sheet and kinematic optimization for W/Q2 (Garth)
1288
** Circulate elastic calculations for kinematic settings (Samip)
1289
** Continue investigation of elastic data and run plan kinematics (Andres/Richard)
1290
** Test software installation instructions (Pete)
1291
** 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) 
1292 32 Stephen Kay
1293
----