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Kaon LT Meetings » History » Version 303

Vijay Kumar, 05/02/2022 04:48 PM

1 116 Richard Trotta
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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
9 282 Vijay Kumar
h2. 2022 Meetings
10
11 299 Garth Huber
h3. May 3, 2022
12 303 Vijay Kumar
13 302 Vijay Kumar
* Vijay 
14
** The SIMC simulation study of the PinoLT data at Q2 = 0.38 and 0.42 GeV2 has completed (preliminary).
15
** An output pdf file of the 4.5 GeV, Q2 = 0.42 GeV2 and center setting is here attachment:Vijay_analysis_May3_2022.pdf .
16 299 Garth Huber
17 300 Garth Huber
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18
19 296 Vijay Kumar
h3. April 19, 2022
20 299 Garth Huber
21
* Garth's Notes attachment:mtg_22apr19.txt
22 296 Vijay Kumar
* Vijay 
23 298 Vijay Kumar
** SIMC simulation updates at Q2 = 2.7, 3.6 and 4.5 GeV2. attachment:Vijay_KaonLT_Meeting_Apr19_2022.pdf  
24 296 Vijay Kumar
25
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26
27 282 Vijay Kumar
h3. April 06, 2022
28 294 Garth Huber
29 293 Garth Huber
* Garth's Notes attachment:mtg_22apr06.txt
30 290 Richard Trotta
* Richard 
31
** attachment:KaonLTMeeting4_6_22.pdf
32 288 Richard Trotta
** The analysis of the 10.6 GeV heep coin/singles settings are still ongoing. 
33
** There were some issues getting the replays working for the singles runs and the analysis. Things finally were sorted out yesterday (and this morning).
34
** The SHMS heep singles are presented. Overall, they look fine. There are still some things to sort out.
35 291 Richard Trotta
** The HMS heep singles are still running.
36 282 Vijay Kumar
* Vijay 
37
** The simulation study of the 4.9 GeV KaonLT data has completed.
38
** This energy has left, center and right settings data. All these settings look fine. 
39 285 Vijay Kumar
** See the pdf for more info. attachment:Vijay_KaonLT_Meeting_Apri_06_2022.pdf  
40 288 Richard Trotta
41 295 Garth Huber
Next meeting April TBD
42 284 Vijay Kumar
43 1 Richard Trotta
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44 284 Vijay Kumar
45 281 Richard Trotta
h3. March 23, 2022
46 1 Richard Trotta
47 281 Richard Trotta
* Garth's Notes attachment:mtg_22mar23.txt
48 278 Richard Trotta
* Richard 
49
** 10.6 GeV heep coin was analyzed. Things look pretty good so far, still some work to be done. attachment:KaonLTMeeting3_23_22.pdf
50
** Heep singles are next up. There have been issues replaying these runs but Ali may have fixed this issue with his parameter file changes.
51 279 Nathan Heinrich
* Nathan
52 280 Nathan Heinrich
** 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.
53
** after changing back to 1 discrepancy resolved. Slides: attachment:Mode10Update_2022Mar23.pdf
54 278 Richard Trotta
55
Next meeting April 6th @ 1 EDT
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h3. March 9, 2022
60
61 271 Garth Huber
* Garth's Notes attachment:mtg_22mar09.txt
62 267 Richard Trotta
* Richard 
63
** Vijay's scripts are working and Richard reproduced some of his previous plots. attachment:KaonLTMeeting3_9_22.pdf
64
** The next step is to do a full analysis of the 10.6 GeV heep coin/singles data.
65 268 Nathan Heinrich
* Nathan
66
** Update on the current state of mode 10: attachment:Mode10Update_2022Mar9.pdf 
67
** See Mark Jones' slide on changes to hcana: https://redmine.jlab.org/attachments/1424
68 267 Richard Trotta
69 1 Richard Trotta
Next meeting March 23th @ 1 EDT
70 277 Garth Huber
71
* Regina March 4 meeting on pion leak through in (e,e'K+) analysis attachment:grp_22mar04.txt
72 269 Richard Trotta
73 261 Garth Huber
---
74
75 271 Garth Huber
h3. February 23, 2022
76 273 Garth Huber
77 271 Garth Huber
* Garth's Notes attachment:mtg_22feb23.txt
78
79 272 Garth Huber
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80
81 244 Vijay Kumar
h3. January 26, 2022  
82
83 271 Garth Huber
* Garth's Notes attachment:mtg_22jan26.txt
84 253 Vijay Kumar
* Vijay, Heep updates from the PionLT experiment. attachment:Analysis_Updates_Jan26_2022.pdf 
85 251 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   
86 252 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
87 246 Vijay Kumar
** The 3.6 and 4.5 GeV data do not have elastic data.
88 250 Vijay Kumar
** Coin: 2.7, 3.6 and 4.5 GeV. attachment:Analysed_2p7.pdf attachment:Analysed_3p6.pdf attachment:Analysed_4p5.pdf   
89 254 Nathan Heinrich
* Nathan, Short update on the Mode 10
90 255 Nathan Heinrich
** Short update. May need to update hcana to change software voltage threshold. attachment:2022-01-26NathanHeinrich.pdf
91 256 Jacob Murphy
* Jacob, EDTM Study 2
92 260 Jacob Murphy
** EDTM study with beam, taken during LUMI Scan 3
93 255 Nathan Heinrich
** Early look at 3rd EDTM Study
94 248 Vijay Kumar
** Additional notes on increased deadtime in SHMS at High Current. attachment:PionLT_EDTM_Study2_Analysis.pdf
95 113 Richard Trotta
96 222 Richard Trotta
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97 200 Richard Trotta
98 236 Garth Huber
h3. January 12, 2022  
99
100
* Garth's Notes attachment:mtg_22jan12.txt
101
* Junaid
102
** PID study
103
* Vijay
104 240 Vijay Kumar
** Heep-singles study attachment:Analysis_Updates1_Jan12.pdf 
105 238 Vijay Kumar
106 236 Garth Huber
* Nathan
107
** Mode-10 data variables
108
109 243 Richard Trotta
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110
111 234 Garth Huber
h3. January 5, 2022  
112
113 235 Garth Huber
* Garth's Notes attachment:mtg_22jan05.txt
114 221 Richard Trotta
* Stephen
115
** Stephen was updating GitHub but UTIL_BATCH has some permissions issues
116
* Richard
117
** Update to KLT task schedule
118
** Meeting between Richard and Vijay to discuss task breakdown Friday, January 7th at 11 am EST
119
** EDTM study 2 will done sometime this weekend
120 223 Richard Trotta
* Vijay
121
** Breakdown of HEEP single analysis for low Q2 data
122 224 Richard Trotta
*** Shapes of SIMC and data are very off
123
*** It seems to be a systematic issue on Vijay's part because the same issue is being seen in PLT data
124 231 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.  
125 229 Vijay Kumar
** https://redmine.jlab.org/attachments/1376
126 228 Vijay Kumar
** https://redmine.jlab.org/attachments/1375
127 225 Nathan Heinrich
* Nathan
128
** Update on fADC mode 10 studies and the fADC deadtime studies
129
** https://redmine.jlab.org/attachments/1372
130 226 Jacob Murphy
* Jacob
131
** Summary of EDTM analysis so far in the PionLT experiment
132 227 Jacob Murphy
** https://redmine.jlab.org/attachments/1373
133 242 Richard Trotta
134 221 Richard Trotta
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135
136
h2. 2021 Meetings
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138 220 Richard Trotta
h3. August 4, 2021
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* Richard
141
** 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).
142
** Issues with the COIN are seen but may be a replay issue.
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145
146 217 Richard Trotta
h3. July 21, 2021
147
148 218 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1250/KaonLTMeeting7_14_21.pdf
149 217 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.
150
151 218 Richard Trotta
Next meeting August 4th @ 4:30 ED
152 217 Richard Trotta
153
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154
155 215 Richard Trotta
h3. May 12, 2021
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* Richard
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** 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.
159
160 216 Richard Trotta
Next meeting May 26th @ 4:30 ED
161 215 Richard Trotta
162
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163
164 213 Richard Trotta
h3. April 28, 2021
165
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* Richard
167 214 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.
168 213 Richard Trotta
169
Next meeting May 12th @ 4:30 EDT
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172
173 211 Richard Trotta
h3. April 14, 2021
174 212 Richard Trotta
175 211 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_4_14_21.pdf
176
** 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). 
177
** Some PionLT carbon runs were looked at but there are still some issues (either cut or pathing related).
178
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Next meeting April 14th @ 4:30 EDT
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183 203 Richard Trotta
h3. March 31, 2021
184
185 206 Richard Trotta
* Richard
186 209 Richard Trotta
** Luminosity studies
187
*** PionLT carbon runs
188
**** Still having issues getting decent results. I think I am just missing a definition somewhere that I need to track down
189
*** Uncertainties
190
**** Easy to do, I just need to put it into my script
191
** Explicit PS calculations
192
*** I have gotten a rough script working for very simple runs (ie low rate, single spectrometer, calibration runs)
193
*** I am trying to expand to lumi singles runs, things get a bit more complex so I am just working out the trigger correlations
194
** Pass 2 runs
195
*** DEF-files
196
**** I checked out the DEF-files for our combination of the nested files
197
**** There are a lot a files (~150!!!!) and may be hard to track so next week *we should make a flowchart together*
198
**** Working on my list of branches for the next replay
199
***** Mainly just working on my list of branches for the explicit PS calculations
200
***** *Everyone should have a list of these branches by next mini-meeting (4/7/21)*
201 210 Stephen Kay
* Stephen
202
** Updated DEF-File for the "full" replay
203
*** Can't remove NData brances, Mark says they won't take up too many resources anyway
204
*** Removed individual PMT info and raw info for many detectors, reduced file size by factor ~2
205
** Updating DEF-files/scripts for calibrations as part of PionLT prep
206
** Will focus on DEF-file/DEF-cut file updates over next week
207
*** Will investigate HeeP replays over rest of this week.
208 207 Richard Trotta
209
210 203 Richard Trotta
211
Next meeting April 14th @ 4:30 EDT
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214
215 201 Stephen Kay
h3. March 24, 2021
216
217
* KaonLT Mini Meeting focusing on Pass2 preparation
218
* "Task summary from Richard":https://redmine.jlab.org/projects/kltexp/wiki/Replay_2_Tasks
219
220 202 Stephen Kay
Next meeting March 31st @ 4:30 EDT
221 201 Stephen Kay
222
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223
224 200 Richard Trotta
h3. March 17, 2021
225
226
* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_3_17_21.pdf
227 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.
228 202 Stephen Kay
* Mini meeting March 24th @ 4:30 EDT
229 201 Stephen Kay
230
Next meeting March 31st @ 4:30 EDT
231 200 Richard Trotta
232
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233 194 Richard Trotta
234 199 Richard Trotta
h3. March 3, 2021
235
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* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_3_3_21.pdf
237
** 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). 
238
** 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.
239
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Next meeting March 17th @ 4:30 EST
241
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243
244
245 196 Richard Trotta
h3. February 17, 2021
246 194 Richard Trotta
247
* Richard
248
** 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.
249
250 198 Nathan Heinrich
* Nathan
251
** Presented an update on the Hodoscope Calibrations: https://redmine.jlab.org/attachments/download/1196/HodoscopeUpdate_2021Feb17.pdf
252
253 194 Richard Trotta
Next meeting March 3rd @ 4:30 EST
254
255
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256
257 196 Richard Trotta
h3. February 3, 2021
258 193 Richard Trotta
259
* Richard
260
** A table with the aerogel efficiency for kaons is being created. It will be expanded to other particles and detectors.
261
262
Next meeting February 17th @ 4:30 EST
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265
266 196 Richard Trotta
h3. January 20, 2021
267 191 Richard Trotta
268
* "Richard":https://redmine.jlab.org/attachments/download/1172/KaonLTMeeting_1_20_21.pdf
269
** 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.
270
271 1 Richard Trotta
272 191 Richard Trotta
Next meeting February 3rd @ 4:30 EST
273
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275
276 196 Richard Trotta
h3. January 6, 2021
277 190 Richard Trotta
278
* "Richard":https://redmine.jlab.org/attachments/download/1153/KaonLTMeeting1_6_21.pdf
279 186 Richard Trotta
** Analyzed most of the luminosity scans. There are a few issues I am investigating still which seem to be run related.
280
* Vijay
281
** 
282 1 Richard Trotta
283 191 Richard Trotta
Next meeting January 20th @ 4:30 EST
284 186 Richard Trotta
285
286
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287
288
h2. 2020 Meetings
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290 185 Richard Trotta
h3. December 2, 2020
291
 
292
* Carlos
293
** 
294
* Ali and Richard
295
** 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.
296
* Stephen
297
** 
298
* Vijay
299
** 
300
301
Next meeting December 16th @ 4:30 EST
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304
305 180 Richard Trotta
h3. November 18, 2020
306
307
* Ali
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** 
309 183 Richard Trotta
* "Carlos":https://redmine.jlab.org/attachments/download/1103/LiveTime_Study_cyero.pdf
310 181 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.
311 180 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1101/KaonLTMeeting11_18_20.pdf
312
** Scaler analysis matches Carlos' code now. Overall significant improvements were made through some cut adjustments and incorrect variable definitions.
313
* Stephen
314 182 Richard Trotta
** Updated the hallc_replay_lt with parameter files for all coin peaks.
315 180 Richard Trotta
* Vijay
316
** 
317
318 184 Richard Trotta
Next meeting December 2nd @ 4:30 EST
319 180 Richard Trotta
320
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321
322 178 Richard Trotta
h3. November 4, 2020
323
324
* Ali
325
** 
326
* "Richard":https://redmine.jlab.org/attachments/download/1092/KaonLTMeeting11_4_20.pdf
327 179 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.
328 178 Richard Trotta
* Stephen
329
** 
330
* Vijay
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** 
332
333
Next meeting November 18th @ 4:30 EST
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335
336 141 Stephen Kay
----
337
338 170 Richard Trotta
h3. October 28, 2020
339
340
* Ali
341 177 Richard Trotta
** Went over some of his tracking procedures for the report file implementation
342 172 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1091/KaonLTMeeting10_28_20.pdf
343 173 Richard Trotta
** Luminosity analysis continues. There are still some issues but things have improved a bit.
344 171 Stephen Kay
* "Stephen":https://redmine.jlab.org/attachments/download/1090/KaonLT_Meeting_28_10_20.pdf
345
** Discussion of CT peak analysis, progress and outline of what's left to do with this
346 174 Richard Trotta
* Vijay
347 176 Richard Trotta
** Dry run for Mark's hallc meeting tomorrow (10/29)
348 170 Richard Trotta
349 177 Richard Trotta
Next meeting November 4th @ 4:30 EST
350 170 Richard Trotta
351
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352
353 164 Richard Trotta
h3. October 14, 2020
354
355 168 Richard Trotta
* Ali
356 164 Richard Trotta
** Working through the REPORT_FILES template to get everything working and outputting proper information.
357
* "Richard":https://redmine.jlab.org/attachments/download/1085/KaonLTMeeting_10_14_20.pdf
358
** Updates on lumi scans. There are many issues from Scalers to Tracking that need to be resolved.
359 167 Richard Trotta
* Stephen
360 164 Richard Trotta
** He has included a demo for using the python analysis script in the README.
361 1 Richard Trotta
362 170 Richard Trotta
Next meeting October 28th @ 4:30 EST
363 164 Richard Trotta
364
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365
366 161 Richard Trotta
h3. September 23, 2020
367
368
* "Richard":https://redmine.jlab.org/attachments/download/1078/KaonLTMeeting_9_23_20.pdf
369
** 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. 
370
* Stephen
371 162 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.
372
* Petr
373
** Data fitting algorithm based on E.H. Bellamy paper. Extracts PMT spectra from ROOT file and makes a 1D projection histogram.
374 161 Richard Trotta
375 163 Richard Trotta
Next meeting October 14th @ 4:30 EST
376 161 Richard Trotta
377
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378
379 149 Richard Trotta
h3. September 9, 2020
380 156 Richard Trotta
381
* Richard
382 157 Richard Trotta
** Still working on run list, GUI checks
383 156 Richard Trotta
* "Stephen":https://redmine.jlab.org/issues/567
384
** New slim replay scripts and full replay scripts updated
385
* Ali
386
** Him and Stephen found an issue (already aware of) with zeros in the parameter files using Mark's hcana changes
387
** Need to be vigilant of crashed replays because this is probably the issue
388 158 Richard Trotta
* Vijay
389 156 Richard Trotta
** Nearly finished with HGcer calibrations
390 1 Richard Trotta
391 161 Richard Trotta
Next meeting September 23rd @ 4:30 EST
392 156 Richard Trotta
393
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394
395
h3. August 26, 2020
396
397 149 Richard Trotta
*Links to talks->* "Ali":https://redmine.jlab.org/issues/483 "Vijay":https://redmine.jlab.org/issues/479
398 154 Richard Trotta
399
* Richard
400
** 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.
401
* Stephen
402
** Updated on RF times. There were a few issues with some runs, but overall most are finished.
403
* Ali
404
** 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)
405
* Vijay
406 150 Richard Trotta
** Updated the SHMS HGCher analysis. The calibrations are coming along, but a little more work needs to be finished up.
407 1 Richard Trotta
408 156 Richard Trotta
Next meeting September 9 @ 5 EST
409 150 Richard Trotta
410 149 Richard Trotta
----
411
412 144 Richard Trotta
h3. July 29, 2020
413 147 Stephen Kay
414 148 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
415 146 Stephen Kay
416 155 Richard Trotta
* Stephen
417
** Updates on scripts to set pedestal defaults and AdcTdc offsets after hcana change
418
* Richard
419
** Updated plan and schedule for the analysis going forward
420 1 Richard Trotta
421 150 Richard Trotta
Next meeting August 26th @ 4:30 EST
422
423 144 Richard Trotta
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424
425 139 Richard Trotta
h3. July 8, 2020
426 1 Richard Trotta
427 139 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
428 150 Richard Trotta
429 140 Richard Trotta
Next meeting July 29 @ 4:30 EST
430 139 Richard Trotta
431
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432
433 132 Richard Trotta
h3. June 24, 2020
434
435 143 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
436 137 Richard Trotta
Next meeting July 8th @ 4:30 EST
437 132 Richard Trotta
438
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439
440 129 Richard Trotta
h3. June 9, 2020
441
442 135 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
443 129 Richard Trotta
444 131 Richard Trotta
Next meeting June 24th @ 4:30 EST
445 129 Richard Trotta
446
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447
448 125 Richard Trotta
h3. May 27, 2020
449
450 126 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
451 128 Richard Trotta
452 127 Richard Trotta
Next meeting June 9th @ 4:30 EST
453 125 Richard Trotta
454
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455
456 118 Stephen Kay
h3. May 13, 2020
457 124 Richard Trotta
458 138 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
459 1 Richard Trotta
460 127 Richard Trotta
Next meeting May 27th @ 4:30 EST
461 118 Stephen Kay
462 121 Richard Trotta
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463
464 111 Richard Trotta
h3. April 29, 2020
465
466 138 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
467 106 Richard Trotta
468 127 Richard Trotta
Next meeting May 13th @ 4:30 EST
469 106 Richard Trotta
470 1 Richard Trotta
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471 106 Richard Trotta
472 111 Richard Trotta
h3. April 15, 2020
473 104 Richard Trotta
474 102 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/attachments/download/977/KaonLTMeeting_4_15_20.pdf
475 105 Richard Trotta
476 127 Richard Trotta
Next meeting April 29th @ 4:30 EST
477 1 Richard Trotta
478 102 Richard Trotta
----
479 95 Stephen Kay
480 111 Richard Trotta
h3. April 1, 2020
481 100 Stephen Kay
482 138 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
483 101 Richard Trotta
484 127 Richard Trotta
Next meeting April 15th @  4:30 EST
485 101 Richard Trotta
486 41 Stephen Kay
----
487 93 Richard Trotta
488 111 Richard Trotta
h3. March 18, 2020
489 93 Richard Trotta
490
*Links to talks->* "Richard's EIC Temple Draft 2":https://redmine.jlab.org/attachments/download/942/DRAFT2_mesonSF_EIC_Temple.pdf
491 1 Richard Trotta
492 127 Richard Trotta
Next meeting April 1st @  4:30 EST
493 93 Richard Trotta
494
----
495 91 Richard Trotta
496 111 Richard Trotta
h3. March 11, 2020
497 92 Richard Trotta
498 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
499 94 Richard Trotta
500 127 Richard Trotta
Next meeting March 18th @  4:30 EST
501 91 Richard Trotta
502
----
503 88 Richard Trotta
504 111 Richard Trotta
h3. Feb 26, 2020
505 90 Richard Trotta
506
* Peter's changes to hcana should be coming soon. Richard will check with Mark when he is down there for an update.
507
* Need to incorporate the latest "BCM updates":https://hallcweb.jlab.org/doc-public/ShowDocument?docid=1034 from Dave Mack.
508 1 Richard Trotta
* Richard should look at the luminosity scalar analysis before and after the BCM changes once he gets his script working again.
509 88 Richard Trotta
**  He is checking with Mark about this while he is down in jlab. 
510 1 Richard Trotta
511 127 Richard Trotta
Next meeting March 11th @  4:30 EST
512 86 Richard Trotta
513 1 Richard Trotta
----
514 86 Richard Trotta
515 111 Richard Trotta
h3. Feb 10, 2020 
516 87 Richard Trotta
517 127 Richard Trotta
Next meeting Feb 26th @ 11 am EST
518 86 Richard Trotta
519
----
520 1 Richard Trotta
521 111 Richard Trotta
h3. Jan 22, 2020
522 83 Richard Trotta
523
*Links to talks->* "Richard's Hall C Winter Talk Draft 1":https://redmine.jlab.org/attachments/download/937/KaonLTHallC_WinterTalk2020_Draft1.pdf
524 85 Richard Trotta
525 127 Richard Trotta
Next meeting Feb 10 @ 11 am EST
526 83 Richard Trotta
527 1 Richard Trotta
----
528 83 Richard Trotta
529 111 Richard Trotta
h3. Jan 15,2020
530 81 Richard Trotta
531 82 Richard Trotta
*Links to talks->* "Richard's Hall C Winter Talk Outline":https://redmine.jlab.org/attachments/download/936/KaonLTHallC_WinterTalk2020.pdf
532 81 Richard Trotta
533 127 Richard Trotta
Next meeting Jan 22 @ 11 am EST
534 81 Richard Trotta
535
----
536 78 Richard Trotta
537 111 Richard Trotta
h3. Jan 8,2020
538 78 Richard Trotta
539 1 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/76
540 79 Richard Trotta
541 1 Richard Trotta
* Richard
542
** PID efficiency script is coming together
543
*** Tighter cuts and cuts on timing, beta, etc. will be needed for cleaner electron cuts
544
*** 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.
545
546
Next meeting will be January 15th at 4 pm EST 
547
548 80 Richard Trotta
----
549 113 Richard Trotta
550 112 Richard Trotta
h2. 2019 Meetings
551 80 Richard Trotta
552 141 Stephen Kay
----
553
554 111 Richard Trotta
h3. Dec 17,2019
555
556 77 Richard Trotta
Reminder: Mark Jones' commissioning analysis meetings are bi-weekly and announced by Mark
557
558
* Stephen
559
** Number of passes finished for HMS calorimeter
560
*** Still wiggles in all passes
561
** Finished his report on calibrations, "DC and Calorimeters":https://redmine.jlab.org/documents/74
562
** 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
563
*** CUA will be putting together a similar list
564 1 Richard Trotta
565 77 Richard Trotta
* Richard
566
** Fixed one error issue with SHMS calorimeter calibration code (discussed Dec 10th meeting), but still have one error
567
** PID efficiency script plots are complete, but still some questions he needs to work out before a final version
568
*** Eventually need to include tracking into PID efficiencies
569
** Pete brought up the question for a number of multi-hits we are getting
570
*** (Dead Time)+(Trigger efficiency)-EDTM
571
572 127 Richard Trotta
Next meeting will be after the break; Wednesday, January 8th at 3 pm EST
573 77 Richard Trotta
574
----
575 72 Richard Trotta
576 111 Richard Trotta
h3. Dec 10,2019
577 72 Richard Trotta
578 74 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/73
579
580
* Garth and Stephen were in the most recent SIDIS meeting
581
** Wit had lots of hcana changes but they seem to be critical to our work 
582
*** Changes such as new detector classes
583 1 Richard Trotta
** Hopefully Wit will present these in the next commissioning meeting
584
585 77 Richard Trotta
* Stephen improved wiggles but still prevalent
586 74 Richard Trotta
587
* Richard finished HGCer calibrations, he concluded that the online parameters are sufficient
588
** He also has been looking at SHMS calorimeter calibrations but has had issues running the scripts. Most likely a pathing issue.
589
** The "tasks":https://redmine.jlab.org/projects/kltexp/wiki/Analysis_Tasks page has been updated with a section for efficiencies. 
590
*** A PID efficiency script is currently being developed and hopefully should have some plots for our next meeting.
591
592 127 Richard Trotta
* Next meeting will be December 17th at 3 pm EST.
593 74 Richard Trotta
594 75 Richard Trotta
----
595 74 Richard Trotta
596 111 Richard Trotta
h3. Nov 26,2019
597 71 Richard Trotta
598
*Links to talks->* "Richard":https://redmine.jlab.org/issues/480
599
600
* Stephen
601
** DC SHMS, small-angle has poor performance
602
*** Tighter cuts or PID (currently only looks for electrons)
603
** Vardan said calorimeter wiggles are an ongoing issue with no current solution
604
605
* Richard
606 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.
607 71 Richard Trotta
*** Richard will pick up looking at the HGCer calibrations from Vijay's scripts. 
608
*** Richard will also be looking at the SHMS calorimeter and with the suggestion of getting some negatively polarized SHMS runs from Hem.
609
** The HMS Cherenkov is finished with the conclusion that the calibrations from the online runs are good
610
** We can begin looking forward towards efficiencies. 
611
*** Garth suggested that looking at PID may be an advantageous first steps. Precise definitions of these PIDs will need to be logged.
612
*** Clear notes on efficiencies steps will be needed. They will need to be redefined multiple times in multiple ways. 
613
614
* Hem
615
** Has been looking at the calorimeter as well. 
616 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.  
617
618
----
619
620 111 Richard Trotta
h3. Nov 19,2019
621 1 Richard Trotta
622 70 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
623
624
* Richard
625
** Finished up TDC cut paper going through the procedure (found "here":https://redmine.jlab.org/issues/500)
626
** Needed to add Carlos pre-trigger designs to an appendix for the paper which clarifies the introduction section
627
628
* Stephen
629
** Issues with DC calibration for only a few runs during each run period
630
** "wiggles" in HMS calorimeter calibrations for some runs
631
*** few runs where HMS cal totally failed (which was dependent on initial parameters)
632
*** Spring looked worse than the rest (surprisingly), but this may be because online calibration wasn't great
633
634 2 Richard Trotta
----
635 68 Richard Trotta
636 111 Richard Trotta
h3. Nov 5,2019
637 68 Richard Trotta
638
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500
639
640
* Timing update (Stephen)
641
** Reference times between Richard and Stephen are very similar and the GitHub is updated accordingly
642
** Richard is going to add the trigger time cuts once the fall runs are finished (by end of week)
643
** First pass of detector reference time parameter files finished
644 1 Richard Trotta
645 68 Richard Trotta
* Peter's hcana code (Richard and Stephen)
646
** 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
647
*** Richard has emailed Peter about the issue with no response yet (follow-up soon)
648
** 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.
649
650
* Calibrations were decided to be done once per shift
651
652
* Next meeting schedule...
653 127 Richard Trotta
** Small meetings Nov 12 and Nov 19 (at 3pm EST) so Richard and Stephen can iron out the timing and calibrations
654
** November 26 (at 3pm EST) will be a larger meeting. 
655 68 Richard Trotta
*** This is the rough deadline we made for finishing up calibrations. 
656
*** 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!!
657
658
----
659
660 111 Richard Trotta
h3. Oct 22,2019
661 62 Richard Trotta
662 64 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
663 62 Richard Trotta
664 65 Richard Trotta
* SHMS Reference Time Amplitude Cuts(Stephen)
665
** Extra peaks in HG from cross-talk and "ghost-bands" due to ADC screw up
666
*** cuts applied on SHMS ADC ref time amplitude (greater than zero) done before any further event selection and histogram filling
667
** This is a temporary fix to "ghost-bands" and cross talk
668
*** Although for HG there is still a small peak. The hodoscope is fine.
669
** The time window is easier to set now.
670
** DC has been fine (since it uses TDC)
671
*** DC calibrations should be good to complete, other detectors need more fixes (i.e. the remaining "ghost-band")
672
** Hodoscope still bad but this might be because of that "ghost-band", needs to be further investigated
673
674 1 Richard Trotta
* Peter's hcana fixes for reference time (Richard)
675 67 Richard Trotta
** Peter implemented changes to hcana
676
** Two major issues...
677 1 Richard Trotta
## Amplitude goes to null and integral is low or negative which causes a rate-dependent efficiency. 
678 67 Richard Trotta
*** Peter has used the average pulse value acquired over a large sample of runs for each detector. 
679 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)
680 67 Richard Trotta
*** Peter created a routine to find the best offset by means of matching TDC and ADC
681
** Richard has been checking for bugs in the code. 
682
*** It seems to be ready to implement, Richard emailed Peter for confirmation on the implementation in our group directory
683
684 1 Richard Trotta
* Calibration of HMS detectors when the timing is agreed upon by Stephen and Richard.
685 67 Richard Trotta
** Besides hodoscope which still has an issue with the script
686 65 Richard Trotta
** Stephen and Richard are having a meeting late next week to determine time window values
687 62 Richard Trotta
*** These will be relatively final, but on the wider side if adjustments need to be made in the future
688
689 1 Richard Trotta
-----
690 61 Richard Trotta
691 111 Richard Trotta
h3. Sep 24,2019
692 61 Richard Trotta
693
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
694 1 Richard Trotta
695 61 Richard Trotta
-----
696 1 Richard Trotta
697 111 Richard Trotta
h3. Sep 10,2019
698 59 Vijay Kumar
699
*Links to talks->* "Stephen":https://redmine.jlab.org/documents/69 "Ali":https://redmine.jlab.org/documents/72 "Richard":https://redmine.jlab.org/issues/500
700 1 Richard Trotta
701
-----
702 55 Stephen Kay
703 111 Richard Trotta
h3. August 26, 2019
704 55 Stephen Kay
705
*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
706 1 Richard Trotta
707 54 Richard Trotta
----
708
709 111 Richard Trotta
h3. June 21, 2019
710 54 Richard Trotta
711 1 Richard Trotta
*Links to talks->* "Hallc Talk Outline":https://redmine.jlab.org/documents/60 
712 54 Richard Trotta
713 42 Stephen Kay
----
714
715 111 Richard Trotta
h3. June 14, 2019
716 1 Richard Trotta
717 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
718 42 Stephen Kay
719
720 35 Stephen Kay
----
721 1 Richard Trotta
722 111 Richard Trotta
h3. June 4, 2019
723 36 Vijay Kumar
724 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
725 35 Stephen Kay
726 1 Richard Trotta
727 35 Stephen Kay
----
728 1 Richard Trotta
729 111 Richard Trotta
h3. May 21, 2019
730 1 Richard Trotta
731
*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
732 35 Stephen Kay
733
----
734 1 Richard Trotta
735 111 Richard Trotta
h3. May 14, 2019
736 1 Richard Trotta
737 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
738 1 Richard Trotta
739 35 Stephen Kay
----
740 1 Richard Trotta
741 111 Richard Trotta
h3. April 30, 2019
742 1 Richard Trotta
743
*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
744 35 Stephen Kay
745 1 Richard Trotta
----
746
747
h3. February 4, 2019
748
749
*Links to talks->* "Richard":https://redmine.jlab.org/documents/43 "Stephen":https://redmine.jlab.org/documents/44
750
751
----
752 113 Richard Trotta
753 112 Richard Trotta
h2. 2018 Meetings
754 141 Stephen Kay
755
----
756 111 Richard Trotta
757
h3. August 21, 2018
758
759 1 Richard Trotta
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
760 35 Stephen Kay
761 1 Richard Trotta
----
762 35 Stephen Kay
763 111 Richard Trotta
h3. August 8, 2018
764 35 Stephen Kay
765
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
766 1 Richard Trotta
767
----
768 35 Stephen Kay
769 111 Richard Trotta
h3. August 3, 2018
770 1 Richard Trotta
771 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383
772
*Links to talks->*
773 1 Richard Trotta
774 35 Stephen Kay
----
775 1 Richard Trotta
776 111 Richard Trotta
h3. July 11, 2018
777 1 Richard Trotta
778 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383 #384
779 1 Richard Trotta
780 35 Stephen Kay
*Action items:*
781 1 Richard Trotta
782 35 Stephen Kay
* Update run plan, e.g. add prescales (Garth)
783
* Check on details of: magnet cycling procedure, minimum angles, MCC fringe field steering, beam energy measurements, optics checks (Tanja)
784
* Identify additional run coordinators (Tanja)
785
* Encourage collaborators to take shifts, e.g. FIU (Pete)
786
* Draft email about shifts etc. to collaboration (Tanja)
787
* Develop diagnostic scripts and kaonLT specific (Richard, Ryan)
788
* Continue documentation development, e.g. checklist, shift taker instructions, HowTo or link to generic Hall C HowTo, task list, web page (Richard, Garth)
789 1 Richard Trotta
790 35 Stephen Kay
*Discussions:*
791
792
* 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
793
* HGC: waiting for re-installation
794
* Trigger checkout: main items to keep in mind: fADC thresholds, timing HMS/SHMS - leading arm, possible rate limitations
795 1 Richard Trotta
* Shifts
796
* Diagnostics scripts and documentation
797
* Personnel schedules
798
799
----
800
801 111 Richard Trotta
h3. June 28, 2018
802 1 Richard Trotta
803
*Links to talks->* "Richard":https://redmine.jlab.org/documents/34
804
805
*Action Items:*
806
807
* Develop and post shift schedule. Send out request. Find out who is KAONLT liaison (Tanja)
808
* Contact potential run coordinators. (Tanja)
809
* Aerogel tray exchange for start of experiment and coordination of future exchanges (Vladimir)
810
* Update runplan and prepare documents needed for shift crew, e.g. run sheets (Garth)
811
* Set up a web page to collect and link from Redmine - How-To documents, initial calibrations, etc. (Garth, Richard)
812
* 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)
813
* Develop trigger/detector checkout plan (Tanja, initial draft)
814
** Are all experts available at run start, experts needed: coincidence timing , Harp Scans, BCM calibrations, ...
815
* 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)
816
* Find out if all aerogel trays needed for experiment can be stored inside Hall C to avoid having to open truck ramp (Vladimir)
817
818
*Analysis Updates:*
819
820
* Ryan 
821
** resolving differences between his analysis and Richard's
822
823
* Richard
824
** 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
825
** 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.
826
827
----
828
829 111 Richard Trotta
h3. May 31, 2018
830 1 Richard Trotta
831 35 Stephen Kay
*Links to talks->* "Samip":https://redmine.jlab.org/documents/30
832 1 Richard Trotta
833 35 Stephen Kay
----
834 1 Richard Trotta
835 111 Richard Trotta
h3. May 17, 2018 
836 1 Richard Trotta
837 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
838 2 Richard Trotta
839 35 Stephen Kay
* Luminosity scans (Richard, Ryan)
840 111 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
841 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
842
** discussion about pre-scale factors
843 1 Richard Trotta
844 35 Stephen Kay
* Discussion about Richard's script extracting and printing information from report files and trees including histograms
845
** Add option for looking at yields with cuts on cointime, target window, and missing mass
846
** Add option to look at real peak vs. background level
847 1 Richard Trotta
848 35 Stephen Kay
* H(e,e'p) kinematics investigation for fall run (Samip)
849
** 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
850 1 Richard Trotta
851 35 Stephen Kay
* *Action Items*
852
** Luminosity scans at low rates from January (Richard)
853
** Luminosity scans from April with corrected efficiencies, e.d. DT (Ryan)
854
** H(e,e'p) and H(e,e') kinematics for upcoming Kaon LT run (Samip)
855
** Kaon LT detailed run plan (Garth, Pete, Tanja)
856
** Preparations, e.g. report files, diagnostic histograms and real time monitoring, shift worker instructions, optimization of trees (all)
857 1 Richard Trotta
858
----
859
860 111 Richard Trotta
h3. May 10, 2018
861 35 Stephen Kay
862 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
863 35 Stephen Kay
864
* Luminosity Scans January 2018 (Richard)
865
** Tracking-based analysis for Runs 1415-1423, .. for now focus on HMS, typical HMS S1X rates are <
866
** Cuts applied: PID for electrons (Cer, Cal), acceptance (delta)
867
** Efficiency calculation was investigated in detail and applied using scalers from trees
868
** Results for carbon (normalized to 30uA) show large variation - need to understand
869
** *Next steps:*
870
*** Double check calculation of computer lifetime, look for differences in TRIG and PRETRIG scalers
871
*** Check stability of pre-scale (Ryan saw changes within runs)
872
*** Check if detector calibrations for runs are implemented correctly
873
*** Analyze with Ryan's cuts
874 1 Richard Trotta
875 35 Stephen Kay
* Luminosity Scans April 2018 (Ryan)
876
** Confirms Richard's earlier finding that scaler-based analysis is not reliable and that it's best to analyze event-by-event
877
** Tracking-based analysis for runs 2073-2095
878
** Cuts applied: PID for electrons (TOF, Cal, Chi2), acceptance (delta and angles), BCM4a
879
** Included most recent detector calibrations in replay of these runs
880
** Efficiencies from report file mainly, may need to update tracking efficiency implementation
881
** Found that calculations of computer deadtime requires different set of scalers for runs from January to those from April 2018
882
** Results show carbon yields consistent with unity within error (0.5% error bars), and boiling for hydrogen and deuterium
883
** *Next steps:*
884 5 Richard Trotta
*** Check tracking efficiency
885 35 Stephen Kay
886
* *Global comments on Luminosity Scans (so far)*
887 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.
888 35 Stephen Kay
** Efficiencies in report files need to be updated, e.g. CPU deadtime (Richard)
889
** Check if BCM4a is the one closest to the target - get a map of the hall (Richard, Ryan)
890
** Uncertainties on current
891
** Detector calibrations
892 1 Richard Trotta
** HMS vs. SHMS
893 35 Stephen Kay
894
* eK+ coincidence time from SIDIS Spring 2018 run (Samip)
895
** Worked with Mark Jones on coincidence time calculation - now available in hcana (see Samip's 10 May 2018 email for more details)
896
** runs used in this analysis: 3423 with Q2=3.1 GeV2 and W=2.78 GeV
897
** Coincidence time spectrum shows peak separations >2 ns corresponding to different accelerator frequency
898
** Missing mass spectra: Kaon peak clearly visible, also see pions even after cuts
899
** Found that pions appear localized in phase space - seems to be due to end point in kinematic phase space
900 1 Richard Trotta
** *Next steps:*
901 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)
902 35 Stephen Kay
903
* Yield normalized ratios from SIDIS (Hem)
904
** Yield ratios of data to MC match well in shape, but normalization seems not quite right
905
** *Next steps:*
906 4 Richard Trotta
*** Check if efficiencies, currents, run time etc. are taken into account correctly
907
908
----
909 35 Stephen Kay
910 111 Richard Trotta
h3. April 26, 2018
911 4 Richard Trotta
912 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
913 4 Richard Trotta
914 35 Stephen Kay
* Discussion luminosity scan analysis (earlier scan) - Richard
915
** 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
916
** Notes on efficiencies in report file:
917
*** DT (EDTM) is not electronic deadtime. Instead use for now 50ns* trigger rate for HMS and 100ns* trigger rate for SHMS
918
*** Cherenkov efficiency seems low (check if that is due to PID, thresholds, pi/e, etc)
919
*** Tracking efficiency needs to be checked
920
*** 3/4 trigger efficiency seems ok
921
* Discussion luminosity scan analysis (later scan) - Ryan
922
** Fewer carbon runs than earlier scan
923
** Shown is a tracking-based analysis using data from the ROOT trees
924 111 Richard Trotta
** First results for carbon, LH3, and LD2, but efficiencies need to be checked
925 35 Stephen Kay
* SIDIS analysis - Hem
926
** Shown is a data/MC comparison for different kinematic settings. Agreement in shape is very good. Normalization has yet to be applied.
927
** Discussion about agreement in z and apparent offset - relation of this offset with spectrometer offset
928
* Analysis of exclusive events in SIDIS - Samip
929
** Shown is a look at the first kaon events in exclusive limit of SIDIS data
930
** Ongoing work on implementing coincidence time into tree
931
* Discussion of run plan, and in particular possible low Q2/low energy
932
** Assume that kaon low Q2=0.4 already included - have kinematics with specified beam energies, if needed
933
** 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
934
** Garth will put this together in a draft email
935
936 12 Richard Trotta
----
937
938 111 Richard Trotta
h3. March 29, 2018
939 12 Richard Trotta
940 35 Stephen Kay
*Links to talks->* "Richard, ":https://redmine.jlab.org/documents/16 "Samip":https://redmine.jlab.org/documents/27
941 13 Richard Trotta
942 35 Stephen Kay
* Details of adding points to fall run plan - will be ready sooner, likely in week of 4/1 (Garth, Samip, Tanja)
943
* Luminosity scans (Ryan, Andres, Richard, Pete)
944
* Macros, SIDIS analysis (Hem, Anashe)
945
* Elastic data (TBD)
946
947 14 Richard Trotta
----
948 18 Richard Trotta
949 111 Richard Trotta
h3. February 22, 2018
950 18 Richard Trotta
951 35 Stephen Kay
*Links to talks->* "Andres":https://redmine.jlab.org/documents/19
952 18 Richard Trotta
953 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.
954
* Brief description of Samip's work - working on coincidence timing decoding with JLab staff and re-optimization of kinematics
955
* Discussion of Richard's slides on run plan kinematics and preparations -
956
** 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
957
** 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
958
** for each setting will need 1-2 shifts for calibrations - need to negotiate with other experiments in run group
959
** kinematics plots W-Q2 show that still need to do some optimization
960
** run sheets: include raster size, update coincidence count labeling, and carbon target labeling
961
* Discussion of next meeting. Garth at JLab 8-16 March - might have meeting during that time.
962 26 Richard Trotta
963 35 Stephen Kay
* *Action Items:*
964
** Post slides/notes from this meeting and procedure to set up hcana in Redmine (Tanja)
965
** Update run sheet and kinematic optimization for W/Q2 (Garth)
966
** Circulate elastic calculations for kinematic settings (Samip)
967
** Continue investigation of elastic data and run plan kinematics (Andres/Richard)
968
** Test software installation instructions (Pete)
969
** 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) 
970 32 Stephen Kay
971
----