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Kaon LT Meetings » History » Version 295

Garth Huber, 04/07/2022 02:48 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
----
8 284 Vijay Kumar
9 282 Vijay Kumar
h2. 2022 Meetings
10
11
h3. April 06, 2022
12 294 Garth Huber
13 293 Garth Huber
* Garth's Notes attachment:mtg_22apr06.txt
14 290 Richard Trotta
* Richard 
15
** attachment:KaonLTMeeting4_6_22.pdf
16 288 Richard Trotta
** The analysis of the 10.6 GeV heep coin/singles settings are still ongoing. 
17
** There were some issues getting the replays working for the singles runs and the analysis. Things finally were sorted out yesterday (and this morning).
18
** The SHMS heep singles are presented. Overall, they look fine. There are still some things to sort out.
19 291 Richard Trotta
** The HMS heep singles are still running.
20 282 Vijay Kumar
* Vijay 
21
** The simulation study of the 4.9 GeV KaonLT data has completed.
22
** This energy has left, center and right settings data. All these settings look fine. 
23 285 Vijay Kumar
** See the pdf for more info. attachment:Vijay_KaonLT_Meeting_Apri_06_2022.pdf  
24 288 Richard Trotta
25 295 Garth Huber
Next meeting April TBD
26 284 Vijay Kumar
27 1 Richard Trotta
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28 284 Vijay Kumar
29 281 Richard Trotta
h3. March 23, 2022
30 1 Richard Trotta
31 281 Richard Trotta
* Garth's Notes attachment:mtg_22mar23.txt
32 278 Richard Trotta
* Richard 
33
** 10.6 GeV heep coin was analyzed. Things look pretty good so far, still some work to be done. attachment:KaonLTMeeting3_23_22.pdf
34
** Heep singles are next up. There have been issues replaying these runs but Ali may have fixed this issue with his parameter file changes.
35 279 Nathan Heinrich
* Nathan
36 280 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.
37
** after changing back to 1 discrepancy resolved. Slides: attachment:Mode10Update_2022Mar23.pdf
38 278 Richard Trotta
39
Next meeting April 6th @ 1 EDT
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42
43
h3. March 9, 2022
44
45 271 Garth Huber
* Garth's Notes attachment:mtg_22mar09.txt
46 267 Richard Trotta
* Richard 
47
** Vijay's scripts are working and Richard reproduced some of his previous plots. attachment:KaonLTMeeting3_9_22.pdf
48
** The next step is to do a full analysis of the 10.6 GeV heep coin/singles data.
49 268 Nathan Heinrich
* Nathan
50
** Update on the current state of mode 10: attachment:Mode10Update_2022Mar9.pdf 
51
** See Mark Jones' slide on changes to hcana: https://redmine.jlab.org/attachments/1424
52 267 Richard Trotta
53 1 Richard Trotta
Next meeting March 23th @ 1 EDT
54 277 Garth Huber
55
* Regina March 4 meeting on pion leak through in (e,e'K+) analysis attachment:grp_22mar04.txt
56 269 Richard Trotta
57 261 Garth Huber
---
58
59 271 Garth Huber
h3. February 23, 2022
60 273 Garth Huber
61 271 Garth Huber
* Garth's Notes attachment:mtg_22feb23.txt
62
63 272 Garth Huber
---
64
65 244 Vijay Kumar
h3. January 26, 2022  
66
67 271 Garth Huber
* Garth's Notes attachment:mtg_22jan26.txt
68 253 Vijay Kumar
* Vijay, Heep updates from the PionLT experiment. attachment:Analysis_Updates_Jan26_2022.pdf 
69 251 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   
70 252 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
71 246 Vijay Kumar
** The 3.6 and 4.5 GeV data do not have elastic data.
72 250 Vijay Kumar
** Coin: 2.7, 3.6 and 4.5 GeV. attachment:Analysed_2p7.pdf attachment:Analysed_3p6.pdf attachment:Analysed_4p5.pdf   
73 254 Nathan Heinrich
* Nathan, Short update on the Mode 10
74 255 Nathan Heinrich
** Short update. May need to update hcana to change software voltage threshold. attachment:2022-01-26NathanHeinrich.pdf
75 256 Jacob Murphy
* Jacob, EDTM Study 2
76 260 Jacob Murphy
** EDTM study with beam, taken during LUMI Scan 3
77 255 Nathan Heinrich
** Early look at 3rd EDTM Study
78 248 Vijay Kumar
** Additional notes on increased deadtime in SHMS at High Current. attachment:PionLT_EDTM_Study2_Analysis.pdf
79 113 Richard Trotta
80 222 Richard Trotta
----
81 200 Richard Trotta
82 236 Garth Huber
h3. January 12, 2022  
83
84
* Garth's Notes attachment:mtg_22jan12.txt
85
* Junaid
86
** PID study
87
* Vijay
88 240 Vijay Kumar
** Heep-singles study attachment:Analysis_Updates1_Jan12.pdf 
89 238 Vijay Kumar
90 236 Garth Huber
* Nathan
91
** Mode-10 data variables
92
93 243 Richard Trotta
----
94
95 234 Garth Huber
h3. January 5, 2022  
96
97 235 Garth Huber
* Garth's Notes attachment:mtg_22jan05.txt
98 221 Richard Trotta
* Stephen
99
** Stephen was updating GitHub but UTIL_BATCH has some permissions issues
100
* Richard
101
** Update to KLT task schedule
102
** Meeting between Richard and Vijay to discuss task breakdown Friday, January 7th at 11 am EST
103
** EDTM study 2 will done sometime this weekend
104 223 Richard Trotta
* Vijay
105
** Breakdown of HEEP single analysis for low Q2 data
106 224 Richard Trotta
*** Shapes of SIMC and data are very off
107
*** It seems to be a systematic issue on Vijay's part because the same issue is being seen in PLT data
108 231 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.  
109 229 Vijay Kumar
** https://redmine.jlab.org/attachments/1376
110 228 Vijay Kumar
** https://redmine.jlab.org/attachments/1375
111 225 Nathan Heinrich
* Nathan
112
** Update on fADC mode 10 studies and the fADC deadtime studies
113
** https://redmine.jlab.org/attachments/1372
114 226 Jacob Murphy
* Jacob
115
** Summary of EDTM analysis so far in the PionLT experiment
116 227 Jacob Murphy
** https://redmine.jlab.org/attachments/1373
117 242 Richard Trotta
118 221 Richard Trotta
----
119
120
h2. 2021 Meetings
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122 220 Richard Trotta
h3. August 4, 2021
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* Richard
125
** 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).
126
** Issues with the COIN are seen but may be a replay issue.
127
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129
130 217 Richard Trotta
h3. July 21, 2021
131
132 218 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1250/KaonLTMeeting7_14_21.pdf
133 217 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.
134
135 218 Richard Trotta
Next meeting August 4th @ 4:30 ED
136 217 Richard Trotta
137
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138
139 215 Richard Trotta
h3. May 12, 2021
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* Richard
142
** 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.
143
144 216 Richard Trotta
Next meeting May 26th @ 4:30 ED
145 215 Richard Trotta
146
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147
148 213 Richard Trotta
h3. April 28, 2021
149
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* Richard
151 214 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.
152 213 Richard Trotta
153
Next meeting May 12th @ 4:30 EDT
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156
157 211 Richard Trotta
h3. April 14, 2021
158 212 Richard Trotta
159 211 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_4_14_21.pdf
160
** 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). 
161
** Some PionLT carbon runs were looked at but there are still some issues (either cut or pathing related).
162
163
Next meeting April 14th @ 4:30 EDT
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166
167 203 Richard Trotta
h3. March 31, 2021
168
169 206 Richard Trotta
* Richard
170 209 Richard Trotta
** Luminosity studies
171
*** PionLT carbon runs
172
**** Still having issues getting decent results. I think I am just missing a definition somewhere that I need to track down
173
*** Uncertainties
174
**** Easy to do, I just need to put it into my script
175
** Explicit PS calculations
176
*** I have gotten a rough script working for very simple runs (ie low rate, single spectrometer, calibration runs)
177
*** I am trying to expand to lumi singles runs, things get a bit more complex so I am just working out the trigger correlations
178
** Pass 2 runs
179
*** DEF-files
180
**** I checked out the DEF-files for our combination of the nested files
181
**** There are a lot a files (~150!!!!) and may be hard to track so next week *we should make a flowchart together*
182
**** Working on my list of branches for the next replay
183
***** Mainly just working on my list of branches for the explicit PS calculations
184
***** *Everyone should have a list of these branches by next mini-meeting (4/7/21)*
185 210 Stephen Kay
* Stephen
186
** Updated DEF-File for the "full" replay
187
*** Can't remove NData brances, Mark says they won't take up too many resources anyway
188
*** Removed individual PMT info and raw info for many detectors, reduced file size by factor ~2
189
** Updating DEF-files/scripts for calibrations as part of PionLT prep
190
** Will focus on DEF-file/DEF-cut file updates over next week
191
*** Will investigate HeeP replays over rest of this week.
192 207 Richard Trotta
193
194 203 Richard Trotta
195
Next meeting April 14th @ 4:30 EDT
196
197
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198
199 201 Stephen Kay
h3. March 24, 2021
200
201
* KaonLT Mini Meeting focusing on Pass2 preparation
202
* "Task summary from Richard":https://redmine.jlab.org/projects/kltexp/wiki/Replay_2_Tasks
203
204 202 Stephen Kay
Next meeting March 31st @ 4:30 EDT
205 201 Stephen Kay
206
----
207
208 200 Richard Trotta
h3. March 17, 2021
209
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* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_3_17_21.pdf
211 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.
212 202 Stephen Kay
* Mini meeting March 24th @ 4:30 EDT
213 201 Stephen Kay
214
Next meeting March 31st @ 4:30 EDT
215 200 Richard Trotta
216
----
217 194 Richard Trotta
218 199 Richard Trotta
h3. March 3, 2021
219
220
* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_3_3_21.pdf
221
** 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). 
222
** 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.
223
224
Next meeting March 17th @ 4:30 EST
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227
228
229 196 Richard Trotta
h3. February 17, 2021
230 194 Richard Trotta
231
* Richard
232
** 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.
233
234 198 Nathan Heinrich
* Nathan
235
** Presented an update on the Hodoscope Calibrations: https://redmine.jlab.org/attachments/download/1196/HodoscopeUpdate_2021Feb17.pdf
236
237 194 Richard Trotta
Next meeting March 3rd @ 4:30 EST
238
239
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240
241 196 Richard Trotta
h3. February 3, 2021
242 193 Richard Trotta
243
* Richard
244
** A table with the aerogel efficiency for kaons is being created. It will be expanded to other particles and detectors.
245
246
Next meeting February 17th @ 4:30 EST
247
248
----
249
250 196 Richard Trotta
h3. January 20, 2021
251 191 Richard Trotta
252
* "Richard":https://redmine.jlab.org/attachments/download/1172/KaonLTMeeting_1_20_21.pdf
253
** 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.
254
255 1 Richard Trotta
256 191 Richard Trotta
Next meeting February 3rd @ 4:30 EST
257
258
----
259
260 196 Richard Trotta
h3. January 6, 2021
261 190 Richard Trotta
262
* "Richard":https://redmine.jlab.org/attachments/download/1153/KaonLTMeeting1_6_21.pdf
263 186 Richard Trotta
** Analyzed most of the luminosity scans. There are a few issues I am investigating still which seem to be run related.
264
* Vijay
265
** 
266 1 Richard Trotta
267 191 Richard Trotta
Next meeting January 20th @ 4:30 EST
268 186 Richard Trotta
269
270
----
271
272
h2. 2020 Meetings
273
274 185 Richard Trotta
h3. December 2, 2020
275
 
276
* Carlos
277
** 
278
* Ali and Richard
279
** 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.
280
* Stephen
281
** 
282
* Vijay
283
** 
284
285
Next meeting December 16th @ 4:30 EST
286
287
----
288
289 180 Richard Trotta
h3. November 18, 2020
290
291
* Ali
292
** 
293 183 Richard Trotta
* "Carlos":https://redmine.jlab.org/attachments/download/1103/LiveTime_Study_cyero.pdf
294 181 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.
295 180 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1101/KaonLTMeeting11_18_20.pdf
296
** Scaler analysis matches Carlos' code now. Overall significant improvements were made through some cut adjustments and incorrect variable definitions.
297
* Stephen
298 182 Richard Trotta
** Updated the hallc_replay_lt with parameter files for all coin peaks.
299 180 Richard Trotta
* Vijay
300
** 
301
302 184 Richard Trotta
Next meeting December 2nd @ 4:30 EST
303 180 Richard Trotta
304
----
305
306 178 Richard Trotta
h3. November 4, 2020
307
308
* Ali
309
** 
310
* "Richard":https://redmine.jlab.org/attachments/download/1092/KaonLTMeeting11_4_20.pdf
311 179 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.
312 178 Richard Trotta
* Stephen
313
** 
314
* Vijay
315
** 
316
317
Next meeting November 18th @ 4:30 EST
318
319
320 141 Stephen Kay
----
321
322 170 Richard Trotta
h3. October 28, 2020
323
324
* Ali
325 177 Richard Trotta
** Went over some of his tracking procedures for the report file implementation
326 172 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1091/KaonLTMeeting10_28_20.pdf
327 173 Richard Trotta
** Luminosity analysis continues. There are still some issues but things have improved a bit.
328 171 Stephen Kay
* "Stephen":https://redmine.jlab.org/attachments/download/1090/KaonLT_Meeting_28_10_20.pdf
329
** Discussion of CT peak analysis, progress and outline of what's left to do with this
330 174 Richard Trotta
* Vijay
331 176 Richard Trotta
** Dry run for Mark's hallc meeting tomorrow (10/29)
332 170 Richard Trotta
333 177 Richard Trotta
Next meeting November 4th @ 4:30 EST
334 170 Richard Trotta
335
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336
337 164 Richard Trotta
h3. October 14, 2020
338
339 168 Richard Trotta
* Ali
340 164 Richard Trotta
** Working through the REPORT_FILES template to get everything working and outputting proper information.
341
* "Richard":https://redmine.jlab.org/attachments/download/1085/KaonLTMeeting_10_14_20.pdf
342
** Updates on lumi scans. There are many issues from Scalers to Tracking that need to be resolved.
343 167 Richard Trotta
* Stephen
344 164 Richard Trotta
** He has included a demo for using the python analysis script in the README.
345 1 Richard Trotta
346 170 Richard Trotta
Next meeting October 28th @ 4:30 EST
347 164 Richard Trotta
348
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349
350 161 Richard Trotta
h3. September 23, 2020
351
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* "Richard":https://redmine.jlab.org/attachments/download/1078/KaonLTMeeting_9_23_20.pdf
353
** 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. 
354
* Stephen
355 162 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.
356
* Petr
357
** Data fitting algorithm based on E.H. Bellamy paper. Extracts PMT spectra from ROOT file and makes a 1D projection histogram.
358 161 Richard Trotta
359 163 Richard Trotta
Next meeting October 14th @ 4:30 EST
360 161 Richard Trotta
361
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362
363 149 Richard Trotta
h3. September 9, 2020
364 156 Richard Trotta
365
* Richard
366 157 Richard Trotta
** Still working on run list, GUI checks
367 156 Richard Trotta
* "Stephen":https://redmine.jlab.org/issues/567
368
** New slim replay scripts and full replay scripts updated
369
* Ali
370
** Him and Stephen found an issue (already aware of) with zeros in the parameter files using Mark's hcana changes
371
** Need to be vigilant of crashed replays because this is probably the issue
372 158 Richard Trotta
* Vijay
373 156 Richard Trotta
** Nearly finished with HGcer calibrations
374 1 Richard Trotta
375 161 Richard Trotta
Next meeting September 23rd @ 4:30 EST
376 156 Richard Trotta
377
----
378
379
h3. August 26, 2020
380
381 149 Richard Trotta
*Links to talks->* "Ali":https://redmine.jlab.org/issues/483 "Vijay":https://redmine.jlab.org/issues/479
382 154 Richard Trotta
383
* Richard
384
** 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.
385
* Stephen
386
** Updated on RF times. There were a few issues with some runs, but overall most are finished.
387
* Ali
388
** 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)
389
* Vijay
390 150 Richard Trotta
** Updated the SHMS HGCher analysis. The calibrations are coming along, but a little more work needs to be finished up.
391 1 Richard Trotta
392 156 Richard Trotta
Next meeting September 9 @ 5 EST
393 150 Richard Trotta
394 149 Richard Trotta
----
395
396 144 Richard Trotta
h3. July 29, 2020
397 147 Stephen Kay
398 148 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
399 146 Stephen Kay
400 155 Richard Trotta
* Stephen
401
** Updates on scripts to set pedestal defaults and AdcTdc offsets after hcana change
402
* Richard
403
** Updated plan and schedule for the analysis going forward
404 1 Richard Trotta
405 150 Richard Trotta
Next meeting August 26th @ 4:30 EST
406
407 144 Richard Trotta
----
408
409 139 Richard Trotta
h3. July 8, 2020
410 1 Richard Trotta
411 139 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
412 150 Richard Trotta
413 140 Richard Trotta
Next meeting July 29 @ 4:30 EST
414 139 Richard Trotta
415
----
416
417 132 Richard Trotta
h3. June 24, 2020
418
419 143 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
420 137 Richard Trotta
Next meeting July 8th @ 4:30 EST
421 132 Richard Trotta
422
----
423
424 129 Richard Trotta
h3. June 9, 2020
425
426 135 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
427 129 Richard Trotta
428 131 Richard Trotta
Next meeting June 24th @ 4:30 EST
429 129 Richard Trotta
430
----
431
432 125 Richard Trotta
h3. May 27, 2020
433
434 126 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
435 128 Richard Trotta
436 127 Richard Trotta
Next meeting June 9th @ 4:30 EST
437 125 Richard Trotta
438
----
439
440 118 Stephen Kay
h3. May 13, 2020
441 124 Richard Trotta
442 138 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
443 1 Richard Trotta
444 127 Richard Trotta
Next meeting May 27th @ 4:30 EST
445 118 Stephen Kay
446 121 Richard Trotta
----
447
448 111 Richard Trotta
h3. April 29, 2020
449
450 138 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
451 106 Richard Trotta
452 127 Richard Trotta
Next meeting May 13th @ 4:30 EST
453 106 Richard Trotta
454 1 Richard Trotta
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455 106 Richard Trotta
456 111 Richard Trotta
h3. April 15, 2020
457 104 Richard Trotta
458 102 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/attachments/download/977/KaonLTMeeting_4_15_20.pdf
459 105 Richard Trotta
460 127 Richard Trotta
Next meeting April 29th @ 4:30 EST
461 1 Richard Trotta
462 102 Richard Trotta
----
463 95 Stephen Kay
464 111 Richard Trotta
h3. April 1, 2020
465 100 Stephen Kay
466 138 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
467 101 Richard Trotta
468 127 Richard Trotta
Next meeting April 15th @  4:30 EST
469 101 Richard Trotta
470 41 Stephen Kay
----
471 93 Richard Trotta
472 111 Richard Trotta
h3. March 18, 2020
473 93 Richard Trotta
474
*Links to talks->* "Richard's EIC Temple Draft 2":https://redmine.jlab.org/attachments/download/942/DRAFT2_mesonSF_EIC_Temple.pdf
475 1 Richard Trotta
476 127 Richard Trotta
Next meeting April 1st @  4:30 EST
477 93 Richard Trotta
478
----
479 91 Richard Trotta
480 111 Richard Trotta
h3. March 11, 2020
481 92 Richard Trotta
482 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
483 94 Richard Trotta
484 127 Richard Trotta
Next meeting March 18th @  4:30 EST
485 91 Richard Trotta
486
----
487 88 Richard Trotta
488 111 Richard Trotta
h3. Feb 26, 2020
489 90 Richard Trotta
490
* Peter's changes to hcana should be coming soon. Richard will check with Mark when he is down there for an update.
491
* Need to incorporate the latest "BCM updates":https://hallcweb.jlab.org/doc-public/ShowDocument?docid=1034 from Dave Mack.
492 1 Richard Trotta
* Richard should look at the luminosity scalar analysis before and after the BCM changes once he gets his script working again.
493 88 Richard Trotta
**  He is checking with Mark about this while he is down in jlab. 
494 1 Richard Trotta
495 127 Richard Trotta
Next meeting March 11th @  4:30 EST
496 86 Richard Trotta
497 1 Richard Trotta
----
498 86 Richard Trotta
499 111 Richard Trotta
h3. Feb 10, 2020 
500 87 Richard Trotta
501 127 Richard Trotta
Next meeting Feb 26th @ 11 am EST
502 86 Richard Trotta
503
----
504 1 Richard Trotta
505 111 Richard Trotta
h3. Jan 22, 2020
506 83 Richard Trotta
507
*Links to talks->* "Richard's Hall C Winter Talk Draft 1":https://redmine.jlab.org/attachments/download/937/KaonLTHallC_WinterTalk2020_Draft1.pdf
508 85 Richard Trotta
509 127 Richard Trotta
Next meeting Feb 10 @ 11 am EST
510 83 Richard Trotta
511 1 Richard Trotta
----
512 83 Richard Trotta
513 111 Richard Trotta
h3. Jan 15,2020
514 81 Richard Trotta
515 82 Richard Trotta
*Links to talks->* "Richard's Hall C Winter Talk Outline":https://redmine.jlab.org/attachments/download/936/KaonLTHallC_WinterTalk2020.pdf
516 81 Richard Trotta
517 127 Richard Trotta
Next meeting Jan 22 @ 11 am EST
518 81 Richard Trotta
519
----
520 78 Richard Trotta
521 111 Richard Trotta
h3. Jan 8,2020
522 78 Richard Trotta
523 1 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/76
524 79 Richard Trotta
525 1 Richard Trotta
* Richard
526
** PID efficiency script is coming together
527
*** Tighter cuts and cuts on timing, beta, etc. will be needed for cleaner electron cuts
528
*** 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.
529
530
Next meeting will be January 15th at 4 pm EST 
531
532 80 Richard Trotta
----
533 113 Richard Trotta
534 112 Richard Trotta
h2. 2019 Meetings
535 80 Richard Trotta
536 141 Stephen Kay
----
537
538 111 Richard Trotta
h3. Dec 17,2019
539
540 77 Richard Trotta
Reminder: Mark Jones' commissioning analysis meetings are bi-weekly and announced by Mark
541
542
* Stephen
543
** Number of passes finished for HMS calorimeter
544
*** Still wiggles in all passes
545
** Finished his report on calibrations, "DC and Calorimeters":https://redmine.jlab.org/documents/74
546
** 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
547
*** CUA will be putting together a similar list
548 1 Richard Trotta
549 77 Richard Trotta
* Richard
550
** Fixed one error issue with SHMS calorimeter calibration code (discussed Dec 10th meeting), but still have one error
551
** PID efficiency script plots are complete, but still some questions he needs to work out before a final version
552
*** Eventually need to include tracking into PID efficiencies
553
** Pete brought up the question for a number of multi-hits we are getting
554
*** (Dead Time)+(Trigger efficiency)-EDTM
555
556 127 Richard Trotta
Next meeting will be after the break; Wednesday, January 8th at 3 pm EST
557 77 Richard Trotta
558
----
559 72 Richard Trotta
560 111 Richard Trotta
h3. Dec 10,2019
561 72 Richard Trotta
562 74 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/73
563
564
* Garth and Stephen were in the most recent SIDIS meeting
565
** Wit had lots of hcana changes but they seem to be critical to our work 
566
*** Changes such as new detector classes
567 1 Richard Trotta
** Hopefully Wit will present these in the next commissioning meeting
568
569 77 Richard Trotta
* Stephen improved wiggles but still prevalent
570 74 Richard Trotta
571
* Richard finished HGCer calibrations, he concluded that the online parameters are sufficient
572
** He also has been looking at SHMS calorimeter calibrations but has had issues running the scripts. Most likely a pathing issue.
573
** The "tasks":https://redmine.jlab.org/projects/kltexp/wiki/Analysis_Tasks page has been updated with a section for efficiencies. 
574
*** A PID efficiency script is currently being developed and hopefully should have some plots for our next meeting.
575
576 127 Richard Trotta
* Next meeting will be December 17th at 3 pm EST.
577 74 Richard Trotta
578 75 Richard Trotta
----
579 74 Richard Trotta
580 111 Richard Trotta
h3. Nov 26,2019
581 71 Richard Trotta
582
*Links to talks->* "Richard":https://redmine.jlab.org/issues/480
583
584
* Stephen
585
** DC SHMS, small-angle has poor performance
586
*** Tighter cuts or PID (currently only looks for electrons)
587
** Vardan said calorimeter wiggles are an ongoing issue with no current solution
588
589
* Richard
590 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.
591 71 Richard Trotta
*** Richard will pick up looking at the HGCer calibrations from Vijay's scripts. 
592
*** Richard will also be looking at the SHMS calorimeter and with the suggestion of getting some negatively polarized SHMS runs from Hem.
593
** The HMS Cherenkov is finished with the conclusion that the calibrations from the online runs are good
594
** We can begin looking forward towards efficiencies. 
595
*** Garth suggested that looking at PID may be an advantageous first steps. Precise definitions of these PIDs will need to be logged.
596
*** Clear notes on efficiencies steps will be needed. They will need to be redefined multiple times in multiple ways. 
597
598
* Hem
599
** Has been looking at the calorimeter as well. 
600 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.  
601
602
----
603
604 111 Richard Trotta
h3. Nov 19,2019
605 1 Richard Trotta
606 70 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
607
608
* Richard
609
** Finished up TDC cut paper going through the procedure (found "here":https://redmine.jlab.org/issues/500)
610
** Needed to add Carlos pre-trigger designs to an appendix for the paper which clarifies the introduction section
611
612
* Stephen
613
** Issues with DC calibration for only a few runs during each run period
614
** "wiggles" in HMS calorimeter calibrations for some runs
615
*** few runs where HMS cal totally failed (which was dependent on initial parameters)
616
*** Spring looked worse than the rest (surprisingly), but this may be because online calibration wasn't great
617
618 2 Richard Trotta
----
619 68 Richard Trotta
620 111 Richard Trotta
h3. Nov 5,2019
621 68 Richard Trotta
622
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500
623
624
* Timing update (Stephen)
625
** Reference times between Richard and Stephen are very similar and the GitHub is updated accordingly
626
** Richard is going to add the trigger time cuts once the fall runs are finished (by end of week)
627
** First pass of detector reference time parameter files finished
628 1 Richard Trotta
629 68 Richard Trotta
* Peter's hcana code (Richard and Stephen)
630
** 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
631
*** Richard has emailed Peter about the issue with no response yet (follow-up soon)
632
** 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.
633
634
* Calibrations were decided to be done once per shift
635
636
* Next meeting schedule...
637 127 Richard Trotta
** Small meetings Nov 12 and Nov 19 (at 3pm EST) so Richard and Stephen can iron out the timing and calibrations
638
** November 26 (at 3pm EST) will be a larger meeting. 
639 68 Richard Trotta
*** This is the rough deadline we made for finishing up calibrations. 
640
*** 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!!
641
642
----
643
644 111 Richard Trotta
h3. Oct 22,2019
645 62 Richard Trotta
646 64 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
647 62 Richard Trotta
648 65 Richard Trotta
* SHMS Reference Time Amplitude Cuts(Stephen)
649
** Extra peaks in HG from cross-talk and "ghost-bands" due to ADC screw up
650
*** cuts applied on SHMS ADC ref time amplitude (greater than zero) done before any further event selection and histogram filling
651
** This is a temporary fix to "ghost-bands" and cross talk
652
*** Although for HG there is still a small peak. The hodoscope is fine.
653
** The time window is easier to set now.
654
** DC has been fine (since it uses TDC)
655
*** DC calibrations should be good to complete, other detectors need more fixes (i.e. the remaining "ghost-band")
656
** Hodoscope still bad but this might be because of that "ghost-band", needs to be further investigated
657
658 1 Richard Trotta
* Peter's hcana fixes for reference time (Richard)
659 67 Richard Trotta
** Peter implemented changes to hcana
660
** Two major issues...
661 1 Richard Trotta
## Amplitude goes to null and integral is low or negative which causes a rate-dependent efficiency. 
662 67 Richard Trotta
*** Peter has used the average pulse value acquired over a large sample of runs for each detector. 
663 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)
664 67 Richard Trotta
*** Peter created a routine to find the best offset by means of matching TDC and ADC
665
** Richard has been checking for bugs in the code. 
666
*** It seems to be ready to implement, Richard emailed Peter for confirmation on the implementation in our group directory
667
668 1 Richard Trotta
* Calibration of HMS detectors when the timing is agreed upon by Stephen and Richard.
669 67 Richard Trotta
** Besides hodoscope which still has an issue with the script
670 65 Richard Trotta
** Stephen and Richard are having a meeting late next week to determine time window values
671 62 Richard Trotta
*** These will be relatively final, but on the wider side if adjustments need to be made in the future
672
673 1 Richard Trotta
-----
674 61 Richard Trotta
675 111 Richard Trotta
h3. Sep 24,2019
676 61 Richard Trotta
677
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
678 1 Richard Trotta
679 61 Richard Trotta
-----
680 1 Richard Trotta
681 111 Richard Trotta
h3. Sep 10,2019
682 59 Vijay Kumar
683
*Links to talks->* "Stephen":https://redmine.jlab.org/documents/69 "Ali":https://redmine.jlab.org/documents/72 "Richard":https://redmine.jlab.org/issues/500
684 1 Richard Trotta
685
-----
686 55 Stephen Kay
687 111 Richard Trotta
h3. August 26, 2019
688 55 Stephen Kay
689
*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
690 1 Richard Trotta
691 54 Richard Trotta
----
692
693 111 Richard Trotta
h3. June 21, 2019
694 54 Richard Trotta
695 1 Richard Trotta
*Links to talks->* "Hallc Talk Outline":https://redmine.jlab.org/documents/60 
696 54 Richard Trotta
697 42 Stephen Kay
----
698
699 111 Richard Trotta
h3. June 14, 2019
700 1 Richard Trotta
701 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
702 42 Stephen Kay
703
704 35 Stephen Kay
----
705 1 Richard Trotta
706 111 Richard Trotta
h3. June 4, 2019
707 36 Vijay Kumar
708 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
709 35 Stephen Kay
710 1 Richard Trotta
711 35 Stephen Kay
----
712 1 Richard Trotta
713 111 Richard Trotta
h3. May 21, 2019
714 1 Richard Trotta
715
*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
716 35 Stephen Kay
717
----
718 1 Richard Trotta
719 111 Richard Trotta
h3. May 14, 2019
720 1 Richard Trotta
721 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
722 1 Richard Trotta
723 35 Stephen Kay
----
724 1 Richard Trotta
725 111 Richard Trotta
h3. April 30, 2019
726 1 Richard Trotta
727
*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
728 35 Stephen Kay
729 1 Richard Trotta
----
730
731
h3. February 4, 2019
732
733
*Links to talks->* "Richard":https://redmine.jlab.org/documents/43 "Stephen":https://redmine.jlab.org/documents/44
734
735
----
736 113 Richard Trotta
737 112 Richard Trotta
h2. 2018 Meetings
738 141 Stephen Kay
739
----
740 111 Richard Trotta
741
h3. August 21, 2018
742
743 1 Richard Trotta
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
744 35 Stephen Kay
745 1 Richard Trotta
----
746 35 Stephen Kay
747 111 Richard Trotta
h3. August 8, 2018
748 35 Stephen Kay
749
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
750 1 Richard Trotta
751
----
752 35 Stephen Kay
753 111 Richard Trotta
h3. August 3, 2018
754 1 Richard Trotta
755 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383
756
*Links to talks->*
757 1 Richard Trotta
758 35 Stephen Kay
----
759 1 Richard Trotta
760 111 Richard Trotta
h3. July 11, 2018
761 1 Richard Trotta
762 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383 #384
763 1 Richard Trotta
764 35 Stephen Kay
*Action items:*
765 1 Richard Trotta
766 35 Stephen Kay
* Update run plan, e.g. add prescales (Garth)
767
* Check on details of: magnet cycling procedure, minimum angles, MCC fringe field steering, beam energy measurements, optics checks (Tanja)
768
* Identify additional run coordinators (Tanja)
769
* Encourage collaborators to take shifts, e.g. FIU (Pete)
770
* Draft email about shifts etc. to collaboration (Tanja)
771
* Develop diagnostic scripts and kaonLT specific (Richard, Ryan)
772
* Continue documentation development, e.g. checklist, shift taker instructions, HowTo or link to generic Hall C HowTo, task list, web page (Richard, Garth)
773 1 Richard Trotta
774 35 Stephen Kay
*Discussions:*
775
776
* 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
777
* HGC: waiting for re-installation
778
* Trigger checkout: main items to keep in mind: fADC thresholds, timing HMS/SHMS - leading arm, possible rate limitations
779 1 Richard Trotta
* Shifts
780
* Diagnostics scripts and documentation
781
* Personnel schedules
782
783
----
784
785 111 Richard Trotta
h3. June 28, 2018
786 1 Richard Trotta
787
*Links to talks->* "Richard":https://redmine.jlab.org/documents/34
788
789
*Action Items:*
790
791
* Develop and post shift schedule. Send out request. Find out who is KAONLT liaison (Tanja)
792
* Contact potential run coordinators. (Tanja)
793
* Aerogel tray exchange for start of experiment and coordination of future exchanges (Vladimir)
794
* Update runplan and prepare documents needed for shift crew, e.g. run sheets (Garth)
795
* Set up a web page to collect and link from Redmine - How-To documents, initial calibrations, etc. (Garth, Richard)
796
* 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)
797
* Develop trigger/detector checkout plan (Tanja, initial draft)
798
** Are all experts available at run start, experts needed: coincidence timing , Harp Scans, BCM calibrations, ...
799
* 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)
800
* Find out if all aerogel trays needed for experiment can be stored inside Hall C to avoid having to open truck ramp (Vladimir)
801
802
*Analysis Updates:*
803
804
* Ryan 
805
** resolving differences between his analysis and Richard's
806
807
* Richard
808
** 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
809
** 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.
810
811
----
812
813 111 Richard Trotta
h3. May 31, 2018
814 1 Richard Trotta
815 35 Stephen Kay
*Links to talks->* "Samip":https://redmine.jlab.org/documents/30
816 1 Richard Trotta
817 35 Stephen Kay
----
818 1 Richard Trotta
819 111 Richard Trotta
h3. May 17, 2018 
820 1 Richard Trotta
821 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
822 2 Richard Trotta
823 35 Stephen Kay
* Luminosity scans (Richard, Ryan)
824 111 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
825 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
826
** discussion about pre-scale factors
827 1 Richard Trotta
828 35 Stephen Kay
* Discussion about Richard's script extracting and printing information from report files and trees including histograms
829
** Add option for looking at yields with cuts on cointime, target window, and missing mass
830
** Add option to look at real peak vs. background level
831 1 Richard Trotta
832 35 Stephen Kay
* H(e,e'p) kinematics investigation for fall run (Samip)
833
** 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
834 1 Richard Trotta
835 35 Stephen Kay
* *Action Items*
836
** Luminosity scans at low rates from January (Richard)
837
** Luminosity scans from April with corrected efficiencies, e.d. DT (Ryan)
838
** H(e,e'p) and H(e,e') kinematics for upcoming Kaon LT run (Samip)
839
** Kaon LT detailed run plan (Garth, Pete, Tanja)
840
** Preparations, e.g. report files, diagnostic histograms and real time monitoring, shift worker instructions, optimization of trees (all)
841 1 Richard Trotta
842
----
843
844 111 Richard Trotta
h3. May 10, 2018
845 35 Stephen Kay
846 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
847 35 Stephen Kay
848
* Luminosity Scans January 2018 (Richard)
849
** Tracking-based analysis for Runs 1415-1423, .. for now focus on HMS, typical HMS S1X rates are <
850
** Cuts applied: PID for electrons (Cer, Cal), acceptance (delta)
851
** Efficiency calculation was investigated in detail and applied using scalers from trees
852
** Results for carbon (normalized to 30uA) show large variation - need to understand
853
** *Next steps:*
854
*** Double check calculation of computer lifetime, look for differences in TRIG and PRETRIG scalers
855
*** Check stability of pre-scale (Ryan saw changes within runs)
856
*** Check if detector calibrations for runs are implemented correctly
857
*** Analyze with Ryan's cuts
858 1 Richard Trotta
859 35 Stephen Kay
* Luminosity Scans April 2018 (Ryan)
860
** Confirms Richard's earlier finding that scaler-based analysis is not reliable and that it's best to analyze event-by-event
861
** Tracking-based analysis for runs 2073-2095
862
** Cuts applied: PID for electrons (TOF, Cal, Chi2), acceptance (delta and angles), BCM4a
863
** Included most recent detector calibrations in replay of these runs
864
** Efficiencies from report file mainly, may need to update tracking efficiency implementation
865
** Found that calculations of computer deadtime requires different set of scalers for runs from January to those from April 2018
866
** Results show carbon yields consistent with unity within error (0.5% error bars), and boiling for hydrogen and deuterium
867
** *Next steps:*
868 5 Richard Trotta
*** Check tracking efficiency
869 35 Stephen Kay
870
* *Global comments on Luminosity Scans (so far)*
871 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.
872 35 Stephen Kay
** Efficiencies in report files need to be updated, e.g. CPU deadtime (Richard)
873
** Check if BCM4a is the one closest to the target - get a map of the hall (Richard, Ryan)
874
** Uncertainties on current
875
** Detector calibrations
876 1 Richard Trotta
** HMS vs. SHMS
877 35 Stephen Kay
878
* eK+ coincidence time from SIDIS Spring 2018 run (Samip)
879
** Worked with Mark Jones on coincidence time calculation - now available in hcana (see Samip's 10 May 2018 email for more details)
880
** runs used in this analysis: 3423 with Q2=3.1 GeV2 and W=2.78 GeV
881
** Coincidence time spectrum shows peak separations >2 ns corresponding to different accelerator frequency
882
** Missing mass spectra: Kaon peak clearly visible, also see pions even after cuts
883
** Found that pions appear localized in phase space - seems to be due to end point in kinematic phase space
884 1 Richard Trotta
** *Next steps:*
885 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)
886 35 Stephen Kay
887
* Yield normalized ratios from SIDIS (Hem)
888
** Yield ratios of data to MC match well in shape, but normalization seems not quite right
889
** *Next steps:*
890 4 Richard Trotta
*** Check if efficiencies, currents, run time etc. are taken into account correctly
891
892
----
893 35 Stephen Kay
894 111 Richard Trotta
h3. April 26, 2018
895 4 Richard Trotta
896 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
897 4 Richard Trotta
898 35 Stephen Kay
* Discussion luminosity scan analysis (earlier scan) - Richard
899
** 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
900
** Notes on efficiencies in report file:
901
*** DT (EDTM) is not electronic deadtime. Instead use for now 50ns* trigger rate for HMS and 100ns* trigger rate for SHMS
902
*** Cherenkov efficiency seems low (check if that is due to PID, thresholds, pi/e, etc)
903
*** Tracking efficiency needs to be checked
904
*** 3/4 trigger efficiency seems ok
905
* Discussion luminosity scan analysis (later scan) - Ryan
906
** Fewer carbon runs than earlier scan
907
** Shown is a tracking-based analysis using data from the ROOT trees
908 111 Richard Trotta
** First results for carbon, LH3, and LD2, but efficiencies need to be checked
909 35 Stephen Kay
* SIDIS analysis - Hem
910
** Shown is a data/MC comparison for different kinematic settings. Agreement in shape is very good. Normalization has yet to be applied.
911
** Discussion about agreement in z and apparent offset - relation of this offset with spectrometer offset
912
* Analysis of exclusive events in SIDIS - Samip
913
** Shown is a look at the first kaon events in exclusive limit of SIDIS data
914
** Ongoing work on implementing coincidence time into tree
915
* Discussion of run plan, and in particular possible low Q2/low energy
916
** Assume that kaon low Q2=0.4 already included - have kinematics with specified beam energies, if needed
917
** 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
918
** Garth will put this together in a draft email
919
920 12 Richard Trotta
----
921
922 111 Richard Trotta
h3. March 29, 2018
923 12 Richard Trotta
924 35 Stephen Kay
*Links to talks->* "Richard, ":https://redmine.jlab.org/documents/16 "Samip":https://redmine.jlab.org/documents/27
925 13 Richard Trotta
926 35 Stephen Kay
* Details of adding points to fall run plan - will be ready sooner, likely in week of 4/1 (Garth, Samip, Tanja)
927
* Luminosity scans (Ryan, Andres, Richard, Pete)
928
* Macros, SIDIS analysis (Hem, Anashe)
929
* Elastic data (TBD)
930
931 14 Richard Trotta
----
932 18 Richard Trotta
933 111 Richard Trotta
h3. February 22, 2018
934 18 Richard Trotta
935 35 Stephen Kay
*Links to talks->* "Andres":https://redmine.jlab.org/documents/19
936 18 Richard Trotta
937 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.
938
* Brief description of Samip's work - working on coincidence timing decoding with JLab staff and re-optimization of kinematics
939
* Discussion of Richard's slides on run plan kinematics and preparations -
940
** 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
941
** 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
942
** for each setting will need 1-2 shifts for calibrations - need to negotiate with other experiments in run group
943
** kinematics plots W-Q2 show that still need to do some optimization
944
** run sheets: include raster size, update coincidence count labeling, and carbon target labeling
945
* Discussion of next meeting. Garth at JLab 8-16 March - might have meeting during that time.
946 26 Richard Trotta
947 35 Stephen Kay
* *Action Items:*
948
** Post slides/notes from this meeting and procedure to set up hcana in Redmine (Tanja)
949
** Update run sheet and kinematic optimization for W/Q2 (Garth)
950
** Circulate elastic calculations for kinematic settings (Samip)
951
** Continue investigation of elastic data and run plan kinematics (Andres/Richard)
952
** Test software installation instructions (Pete)
953
** 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) 
954 32 Stephen Kay
955
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