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Kaon LT Meetings » History » Version 363

Vijay Kumar, 08/04/2022 11:16 AM

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
10 326 Garth Huber
11 325 Garth Huber
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12 346 Richard Trotta
13 354 Garth Huber
h3. Aug 4, 2022
14
15 363 Vijay Kumar
* Vijay
16
** The offset HeepCheck study at 3.9, 4.9 (KaonLT), 2.7, 3.6 and 4.5 GeV has been completed. attachment:Vijay_HeepCheckStudy.pdf  
17
18 362 Richard Trotta
* Richard
19
** attachment:KaonLTMeeting_8_4_22.pdf
20
** HeeP coin for 10p6 setting is looking pretty good. I still need to make some minor adjustments.
21
** TLT for Lumi is looking much better. The yields also are looking better but cut adjustments need to be made.
22
** HeeP singles have some odd issues that need to be resolved before offset analysis can begin.
23
** Hodoscope calibrations are all done except 6p2.
24 355 Garth Huber
25 354 Garth Huber
---
26
27 350 Richard Trotta
h3. July 14, 2022
28
29 353 Garth Huber
* Garth/Stephen Notes attachment:mtg_22jul14.txt
30 350 Richard Trotta
* Richard
31
** attachment:KaonLTMeeting7_14_22.pdf
32
** The W peaks for SIMC and data are very far offset from one another. This is being investigated.
33 1 Richard Trotta
* Vijay
34 350 Richard Trotta
** Heep Data MC comparo w/o offsets attachment:Heep_coin_no_offsets_vijay_22jul08.pdf
35 349 Garth Huber
36
----
37
38 344 Richard Trotta
h3. June 28, 2022
39
40 349 Garth Huber
* Garth/Stephen Notes attachment:mtg_22jun28.txt
41 344 Richard Trotta
* Richard
42
** Aerogel XY plots vs NPE to check out the tray location and efficiencies.
43
** Hodoscope and calorimeter scripts working. Hodoscope calibration looks good for 10p6 but needs improvement for other beam energies.
44
** HGCer efficiency and plots added to efficiency script. Need to discuss with Vijay on specifics of cuts and efficiencies.
45 1 Richard Trotta
** Started looking in detail at Bill's code. Some scripts and links are missing/broken.
46 348 Jacob Murphy
* Jacob
47
** EDTM Study Report completed, with newer versions of the TLT equations attachment:EDTM_Study_Report.pdf
48
** Graphical Guide for Event Types created to accompany the report, illustrating prescaling with EDTM attachment:Graphical_Guide_Evt_Type.pdf
49 347 Richard Trotta
** Plan to update report file template with new equations and errors soon
50 344 Richard Trotta
51
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52 282 Vijay Kumar
53 338 Garth Huber
h3. June 14, 2022
54
55 343 Garth Huber
* Garth's Notes attachment:efficiencies_22jun13.txt
56 342 Richard Trotta
* Richard
57
** Fixed issues with simc script and 10p6 Heepcoin data. Issue with data was an offset of 40ns that was corrected halfway through runs.
58
** Aerogel XY plots vs NPE to check out the tray location and efficiencies.
59
** Efficiency plots for all production runs.
60
** attachment:KaonLTMeeting6_14_22.pdf
61 338 Garth Huber
62
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63
64 1 Richard Trotta
h3. May 31, 2022
65 330 Garth Huber
66
* Garth and Stephen's Notes attachment:mtg_22may31.txt attachment:efficiencies_22jun02.txt
67 340 Garth Huber
* Vijay 
68 332 Vijay Kumar
** The updated Heep coin study (Heepcheck program) at 3.9 GeV KaonLT data is attached here attachment:Vijay_KaonLT_meeting_May31_2022.pdf .
69 334 Ali Usman
* Ali
70 355 Garth Huber
** First look at the HEEP COIN Data/SIMC comparison for the 8.2 GeV Kaon-LT data attachment:KaonLT_May31.pdf
71 332 Vijay Kumar
72 314 Garth Huber
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73
74
h3. May 17, 2022
75
76 325 Garth Huber
77 331 Garth Huber
* Garth and Stephen's Notes attachment:mtg_22may17.txt attachment:efficiencies_22may25.txt
78 318 Richard Trotta
* Richard
79
** Updated heep coin scripts for the farm. Ali is testing them and should be able to get plots soon.
80
** There was a small typo in the simc input file that dramatically changed the shape of the plots. attachment:KaonLTMeeting5_17_22.pdf
81
** Updated version of efficiency columns for the script that will grab efficiencies and various other values. attachment:efficiency_output_list.docx
82 316 Vijay Kumar
* Vijay 
83
** The updated heep coin study (some spectrometers offsets changed) at 3.9 GeV KaonLT data is attached here attachment:Vijay_KaonLT_meeting.pdf .
84 317 Vijay Kumar
85 314 Garth Huber
----
86
87 299 Garth Huber
h3. May 3, 2022
88 303 Vijay Kumar
89 315 Garth Huber
* Garth and Stephen's Notes attachment:mtg_22may03.odt  attachment:efficiencies_22may03.odt
90 308 Ali Usman
* Ali
91
** Fixed all the settings for high Q2 KaonLT data. Also slide on accessing spectrometer angles from CODA
92
** attachment:KaonLT_May_3.pdf
93 309 Richard Trotta
* Richard
94 312 Richard Trotta
** Analysis of 10.6 GeV heep data. Need to scale data to see how they compare with SIMC for smaller offsets. attachment:KaonLTMeeting5_3_22.pdf
95 302 Vijay Kumar
* Vijay 
96 304 Vijay Kumar
** The SIMC simulation study of the PinoLT data at Q2 = 0.38 and 0.42 GeV2 has completed (preliminary) for all settings.
97 305 Vijay Kumar
** An output pdf file of the 4.5 GeV, Q2 = 0.42 GeV2 and "center" setting is here attachment:Vijay_analysis_May3_2022.pdf .
98 299 Garth Huber
99 300 Garth Huber
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100
101 296 Vijay Kumar
h3. April 19, 2022
102 299 Garth Huber
103
* Garth's Notes attachment:mtg_22apr19.txt
104 1 Richard Trotta
* Vijay 
105 296 Vijay Kumar
** SIMC simulation updates at Q2 = 2.7, 3.6 and 4.5 GeV2. attachment:Vijay_KaonLT_Meeting_Apr19_2022.pdf  
106 298 Vijay Kumar
107 296 Vijay Kumar
----
108
109
h3. April 06, 2022
110 306 Vijay Kumar
111 355 Garth Huber
* Garth's Notes attachment:mtg_22apr06.txt
112 306 Vijay Kumar
* Ali 
113 293 Garth Huber
**  attachment:Analysis_Update_Apr_6.pdf 
114 290 Richard Trotta
* Richard 
115
** attachment:KaonLTMeeting4_6_22.pdf
116 288 Richard Trotta
** The analysis of the 10.6 GeV heep coin/singles settings are still ongoing. 
117
** There were some issues getting the replays working for the singles runs and the analysis. Things finally were sorted out yesterday (and this morning).
118
** The SHMS heep singles are presented. Overall, they look fine. There are still some things to sort out.
119 291 Richard Trotta
** The HMS heep singles are still running.
120 282 Vijay Kumar
* Vijay 
121 306 Vijay Kumar
** The simulation study of the 4.9 GeV KaonLT data has completed.
122 288 Richard Trotta
** This energy has left, center and right settings data. All these settings look fine. 
123 295 Garth Huber
** See the pdf for more info. attachment:Vijay_KaonLT_Meeting_Apri_06_2022.pdf  
124 284 Vijay Kumar
125 1 Richard Trotta
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126 284 Vijay Kumar
127 281 Richard Trotta
h3. March 23, 2022
128 1 Richard Trotta
129 281 Richard Trotta
* Garth's Notes attachment:mtg_22mar23.txt
130 1 Richard Trotta
* Richard 
131 278 Richard Trotta
** 10.6 GeV heep coin was analyzed. Things look pretty good so far, still some work to be done. attachment:KaonLTMeeting3_23_22.pdf
132
** Heep singles are next up. There have been issues replaying these runs but Ali may have fixed this issue with his parameter file changes.
133 280 Nathan Heinrich
* Nathan
134
** 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.
135 278 Richard Trotta
** after changing back to 1 discrepancy resolved. Slides: attachment:Mode10Update_2022Mar23.pdf
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138
139
h3. March 9, 2022
140
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* Garth's Notes attachment:mtg_22mar09.txt
142 355 Garth Huber
* Regina March 4 meeting on pion leak through in (e,e'K+) analysis attachment:grp_22mar04.txt
143 267 Richard Trotta
* Richard 
144
** Vijay's scripts are working and Richard reproduced some of his previous plots. attachment:KaonLTMeeting3_9_22.pdf
145
** The next step is to do a full analysis of the 10.6 GeV heep coin/singles data.
146 1 Richard Trotta
* Nathan
147 277 Garth Huber
** Update on the current state of mode 10: attachment:Mode10Update_2022Mar9.pdf 
148
** See Mark Jones' slide on changes to hcana: https://redmine.jlab.org/attachments/1424
149 269 Richard Trotta
150 261 Garth Huber
---
151
152 271 Garth Huber
h3. February 23, 2022
153 273 Garth Huber
154 271 Garth Huber
* Garth's Notes attachment:mtg_22feb23.txt
155
156 272 Garth Huber
---
157
158 244 Vijay Kumar
h3. January 26, 2022  
159
160 271 Garth Huber
* Garth's Notes attachment:mtg_22jan26.txt
161 253 Vijay Kumar
* Vijay, Heep updates from the PionLT experiment. attachment:Analysis_Updates_Jan26_2022.pdf 
162 251 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   
163 252 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
164 246 Vijay Kumar
** The 3.6 and 4.5 GeV data do not have elastic data.
165 250 Vijay Kumar
** Coin: 2.7, 3.6 and 4.5 GeV. attachment:Analysed_2p7.pdf attachment:Analysed_3p6.pdf attachment:Analysed_4p5.pdf   
166 254 Nathan Heinrich
* Nathan, Short update on the Mode 10
167 255 Nathan Heinrich
** Short update. May need to update hcana to change software voltage threshold. attachment:2022-01-26NathanHeinrich.pdf
168 256 Jacob Murphy
* Jacob, EDTM Study 2
169 260 Jacob Murphy
** EDTM study with beam, taken during LUMI Scan 3
170 255 Nathan Heinrich
** Early look at 3rd EDTM Study
171 248 Vijay Kumar
** Additional notes on increased deadtime in SHMS at High Current. attachment:PionLT_EDTM_Study2_Analysis.pdf
172 113 Richard Trotta
173 222 Richard Trotta
----
174 200 Richard Trotta
175 236 Garth Huber
h3. January 12, 2022  
176
177
* Garth's Notes attachment:mtg_22jan12.txt
178
* Junaid
179
** PID study
180 240 Vijay Kumar
* Vijay
181 238 Vijay Kumar
** Heep-singles study attachment:Analysis_Updates1_Jan12.pdf 
182 236 Garth Huber
* Nathan
183
** Mode-10 data variables
184
185 243 Richard Trotta
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186
187 234 Garth Huber
h3. January 5, 2022  
188
189 235 Garth Huber
* Garth's Notes attachment:mtg_22jan05.txt
190 221 Richard Trotta
* Stephen
191
** Stephen was updating GitHub but UTIL_BATCH has some permissions issues
192
* Richard
193
** Update to KLT task schedule
194
** Meeting between Richard and Vijay to discuss task breakdown Friday, January 7th at 11 am EST
195
** EDTM study 2 will done sometime this weekend
196 223 Richard Trotta
* Vijay
197
** Breakdown of HEEP single analysis for low Q2 data
198 224 Richard Trotta
*** Shapes of SIMC and data are very off
199
*** It seems to be a systematic issue on Vijay's part because the same issue is being seen in PLT data
200 231 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.  
201 229 Vijay Kumar
** https://redmine.jlab.org/attachments/1376
202 228 Vijay Kumar
** https://redmine.jlab.org/attachments/1375
203 225 Nathan Heinrich
* Nathan
204
** Update on fADC mode 10 studies and the fADC deadtime studies
205
** https://redmine.jlab.org/attachments/1372
206 226 Jacob Murphy
* Jacob
207
** Summary of EDTM analysis so far in the PionLT experiment
208 227 Jacob Murphy
** https://redmine.jlab.org/attachments/1373
209 242 Richard Trotta
210 221 Richard Trotta
----
211
212
h2. 2021 Meetings
213
214 220 Richard Trotta
h3. August 4, 2021
215
216
* Richard
217
** 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).
218
** Issues with the COIN are seen but may be a replay issue.
219
220
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221
222 217 Richard Trotta
h3. July 21, 2021
223
224 218 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1250/KaonLTMeeting7_14_21.pdf
225 217 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.
226
227
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228
229 215 Richard Trotta
h3. May 12, 2021
230
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* Richard
232
** 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.
233
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235
236 213 Richard Trotta
h3. April 28, 2021
237
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* Richard
239 214 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.
240 213 Richard Trotta
241
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242
243 211 Richard Trotta
h3. April 14, 2021
244 212 Richard Trotta
245 211 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_4_14_21.pdf
246
** 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). 
247
** Some PionLT carbon runs were looked at but there are still some issues (either cut or pathing related).
248
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250
251 203 Richard Trotta
h3. March 31, 2021
252
253 206 Richard Trotta
* Richard
254 209 Richard Trotta
** Luminosity studies
255
*** PionLT carbon runs
256
**** Still having issues getting decent results. I think I am just missing a definition somewhere that I need to track down
257
*** Uncertainties
258
**** Easy to do, I just need to put it into my script
259
** Explicit PS calculations
260
*** I have gotten a rough script working for very simple runs (ie low rate, single spectrometer, calibration runs)
261
*** I am trying to expand to lumi singles runs, things get a bit more complex so I am just working out the trigger correlations
262
** Pass 2 runs
263
*** DEF-files
264
**** I checked out the DEF-files for our combination of the nested files
265
**** There are a lot a files (~150!!!!) and may be hard to track so next week *we should make a flowchart together*
266
**** Working on my list of branches for the next replay
267
***** Mainly just working on my list of branches for the explicit PS calculations
268
***** *Everyone should have a list of these branches by next mini-meeting (4/7/21)*
269 210 Stephen Kay
* Stephen
270
** Updated DEF-File for the "full" replay
271
*** Can't remove NData brances, Mark says they won't take up too many resources anyway
272
*** Removed individual PMT info and raw info for many detectors, reduced file size by factor ~2
273
** Updating DEF-files/scripts for calibrations as part of PionLT prep
274
** Will focus on DEF-file/DEF-cut file updates over next week
275
*** Will investigate HeeP replays over rest of this week.
276 207 Richard Trotta
277 203 Richard Trotta
----
278
279 201 Stephen Kay
h3. March 24, 2021
280
281
* KaonLT Mini Meeting focusing on Pass2 preparation
282
* "Task summary from Richard":https://redmine.jlab.org/projects/kltexp/wiki/Replay_2_Tasks
283
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285
286 200 Richard Trotta
h3. March 17, 2021
287
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* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_3_17_21.pdf
289 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.
290 202 Stephen Kay
* Mini meeting March 24th @ 4:30 EDT
291 201 Stephen Kay
292 200 Richard Trotta
----
293 194 Richard Trotta
294 199 Richard Trotta
h3. March 3, 2021
295
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* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_3_3_21.pdf
297
** 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). 
298
** 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.
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303 196 Richard Trotta
h3. February 17, 2021
304 194 Richard Trotta
305
* Richard
306
** 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.
307 198 Nathan Heinrich
* Nathan
308
** Presented an update on the Hodoscope Calibrations: https://redmine.jlab.org/attachments/download/1196/HodoscopeUpdate_2021Feb17.pdf
309
310 194 Richard Trotta
----
311
312 196 Richard Trotta
h3. February 3, 2021
313 193 Richard Trotta
314
* Richard
315
** A table with the aerogel efficiency for kaons is being created. It will be expanded to other particles and detectors.
316
317
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318
319 196 Richard Trotta
h3. January 20, 2021
320 191 Richard Trotta
321
* "Richard":https://redmine.jlab.org/attachments/download/1172/KaonLTMeeting_1_20_21.pdf
322
** 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.
323
324
----
325
326 196 Richard Trotta
h3. January 6, 2021
327 190 Richard Trotta
328
* "Richard":https://redmine.jlab.org/attachments/download/1153/KaonLTMeeting1_6_21.pdf
329 322 Richard Trotta
** Analyzed most of the luminosity scans. There are a few issues I am investigating still which seem to be run related. 
330 186 Richard Trotta
331
----
332
333
h2. 2020 Meetings
334
335 185 Richard Trotta
h3. December 2, 2020
336
 
337
* Ali and Richard
338
** 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.
339
340
----
341
342 180 Richard Trotta
h3. November 18, 2020
343
344 183 Richard Trotta
* "Carlos":https://redmine.jlab.org/attachments/download/1103/LiveTime_Study_cyero.pdf
345 181 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.
346 180 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1101/KaonLTMeeting11_18_20.pdf
347
** Scaler analysis matches Carlos' code now. Overall significant improvements were made through some cut adjustments and incorrect variable definitions.
348
* Stephen
349 182 Richard Trotta
** Updated the hallc_replay_lt with parameter files for all coin peaks.
350 180 Richard Trotta
351
----
352
353 178 Richard Trotta
h3. November 4, 2020
354 321 Richard Trotta
 
355 178 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1092/KaonLTMeeting11_4_20.pdf
356 321 Richard Trotta
** Scaler analysis is getting closer to an answer. An in-depth comparison of Carlos and Richard's analysis shows inconsistencies between the two. 
357 178 Richard Trotta
358 141 Stephen Kay
----
359
360 170 Richard Trotta
h3. October 28, 2020
361
362
* Ali
363 177 Richard Trotta
** Went over some of his tracking procedures for the report file implementation
364 172 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1091/KaonLTMeeting10_28_20.pdf
365 173 Richard Trotta
** Luminosity analysis continues. There are still some issues but things have improved a bit.
366 171 Stephen Kay
* "Stephen":https://redmine.jlab.org/attachments/download/1090/KaonLT_Meeting_28_10_20.pdf
367
** Discussion of CT peak analysis, progress and outline of what's left to do with this
368 174 Richard Trotta
* Vijay
369 176 Richard Trotta
** Dry run for Mark's hallc meeting tomorrow (10/29)
370 170 Richard Trotta
371
----
372
373 164 Richard Trotta
h3. October 14, 2020
374
375 168 Richard Trotta
* Ali
376 164 Richard Trotta
** Working through the REPORT_FILES template to get everything working and outputting proper information.
377
* "Richard":https://redmine.jlab.org/attachments/download/1085/KaonLTMeeting_10_14_20.pdf
378
** Updates on lumi scans. There are many issues from Scalers to Tracking that need to be resolved.
379 167 Richard Trotta
* Stephen
380 164 Richard Trotta
** He has included a demo for using the python analysis script in the README.
381 1 Richard Trotta
382 164 Richard Trotta
----
383
384 161 Richard Trotta
h3. September 23, 2020
385
386
* "Richard":https://redmine.jlab.org/attachments/download/1078/KaonLTMeeting_9_23_20.pdf
387
** 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. 
388
* Stephen
389 162 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.
390
* Petr
391
** Data fitting algorithm based on E.H. Bellamy paper. Extracts PMT spectra from ROOT file and makes a 1D projection histogram.
392 161 Richard Trotta
393
----
394
395 149 Richard Trotta
h3. September 9, 2020
396 156 Richard Trotta
397
* Richard
398 157 Richard Trotta
** Still working on run list, GUI checks
399 156 Richard Trotta
* "Stephen":https://redmine.jlab.org/issues/567
400
** New slim replay scripts and full replay scripts updated
401
* Ali
402
** Him and Stephen found an issue (already aware of) with zeros in the parameter files using Mark's hcana changes
403
** Need to be vigilant of crashed replays because this is probably the issue
404 158 Richard Trotta
* Vijay
405 156 Richard Trotta
** Nearly finished with HGcer calibrations
406 1 Richard Trotta
407 156 Richard Trotta
----
408
409
h3. August 26, 2020
410
411 149 Richard Trotta
*Links to talks->* "Ali":https://redmine.jlab.org/issues/483 "Vijay":https://redmine.jlab.org/issues/479
412 154 Richard Trotta
413
* Richard
414
** 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.
415
* Stephen
416
** Updated on RF times. There were a few issues with some runs, but overall most are finished.
417
* Ali
418
** 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)
419
* Vijay
420 150 Richard Trotta
** Updated the SHMS HGCher analysis. The calibrations are coming along, but a little more work needs to be finished up.
421 1 Richard Trotta
422 149 Richard Trotta
----
423
424 144 Richard Trotta
h3. July 29, 2020
425 147 Stephen Kay
426 148 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
427 146 Stephen Kay
428 155 Richard Trotta
* Stephen
429
** Updates on scripts to set pedestal defaults and AdcTdc offsets after hcana change
430
* Richard
431
** Updated plan and schedule for the analysis going forward
432 1 Richard Trotta
433 144 Richard Trotta
----
434
435 139 Richard Trotta
h3. July 8, 2020
436 1 Richard Trotta
437 139 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
438 150 Richard Trotta
439 139 Richard Trotta
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440
441 132 Richard Trotta
h3. June 24, 2020
442
443 143 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
444 132 Richard Trotta
445
----
446
447 129 Richard Trotta
h3. June 9, 2020
448
449 135 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
450 129 Richard Trotta
451
----
452
453 125 Richard Trotta
h3. May 27, 2020
454
455 126 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
456 128 Richard Trotta
457 125 Richard Trotta
----
458
459 118 Stephen Kay
h3. May 13, 2020
460 124 Richard Trotta
461 138 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
462 1 Richard Trotta
463 121 Richard Trotta
----
464
465 111 Richard Trotta
h3. April 29, 2020
466
467 138 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
468 106 Richard Trotta
469 1 Richard Trotta
----
470 106 Richard Trotta
471 111 Richard Trotta
h3. April 15, 2020
472 104 Richard Trotta
473 102 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/attachments/download/977/KaonLTMeeting_4_15_20.pdf
474 105 Richard Trotta
475 102 Richard Trotta
----
476 95 Stephen Kay
477 111 Richard Trotta
h3. April 1, 2020
478 100 Stephen Kay
479 138 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
480 101 Richard Trotta
481 41 Stephen Kay
----
482 93 Richard Trotta
483 111 Richard Trotta
h3. March 18, 2020
484 93 Richard Trotta
485
*Links to talks->* "Richard's EIC Temple Draft 2":https://redmine.jlab.org/attachments/download/942/DRAFT2_mesonSF_EIC_Temple.pdf
486 1 Richard Trotta
487 93 Richard Trotta
----
488 91 Richard Trotta
489 111 Richard Trotta
h3. March 11, 2020
490 92 Richard Trotta
491 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
492 94 Richard Trotta
493 91 Richard Trotta
----
494 88 Richard Trotta
495 111 Richard Trotta
h3. Feb 26, 2020
496 90 Richard Trotta
497
* Peter's changes to hcana should be coming soon. Richard will check with Mark when he is down there for an update.
498
* Need to incorporate the latest "BCM updates":https://hallcweb.jlab.org/doc-public/ShowDocument?docid=1034 from Dave Mack.
499 1 Richard Trotta
* Richard should look at the luminosity scalar analysis before and after the BCM changes once he gets his script working again.
500 88 Richard Trotta
**  He is checking with Mark about this while he is down in jlab. 
501 1 Richard Trotta
502
----
503 86 Richard Trotta
504 111 Richard Trotta
h3. Feb 10, 2020 
505 87 Richard Trotta
506 86 Richard Trotta
----
507 1 Richard Trotta
508 111 Richard Trotta
h3. Jan 22, 2020
509 83 Richard Trotta
510
*Links to talks->* "Richard's Hall C Winter Talk Draft 1":https://redmine.jlab.org/attachments/download/937/KaonLTHallC_WinterTalk2020_Draft1.pdf
511 85 Richard Trotta
512 1 Richard Trotta
----
513 83 Richard Trotta
514 111 Richard Trotta
h3. Jan 15,2020
515 81 Richard Trotta
516 82 Richard Trotta
*Links to talks->* "Richard's Hall C Winter Talk Outline":https://redmine.jlab.org/attachments/download/936/KaonLTHallC_WinterTalk2020.pdf
517 81 Richard Trotta
518
----
519 78 Richard Trotta
520 111 Richard Trotta
h3. Jan 8,2020
521 78 Richard Trotta
522 1 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/76
523 79 Richard Trotta
524 1 Richard Trotta
* Richard
525
** PID efficiency script is coming together
526
*** Tighter cuts and cuts on timing, beta, etc. will be needed for cleaner electron cuts
527
*** 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.
528
529 80 Richard Trotta
----
530 113 Richard Trotta
531 112 Richard Trotta
h2. 2019 Meetings
532 80 Richard Trotta
533 141 Stephen Kay
----
534
535 111 Richard Trotta
h3. Dec 17,2019
536
537 77 Richard Trotta
Reminder: Mark Jones' commissioning analysis meetings are bi-weekly and announced by Mark
538
539
* Stephen
540
** Number of passes finished for HMS calorimeter
541
*** Still wiggles in all passes
542
** Finished his report on calibrations, "DC and Calorimeters":https://redmine.jlab.org/documents/74
543
** 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
544
*** CUA will be putting together a similar list
545 1 Richard Trotta
546 77 Richard Trotta
* Richard
547
** Fixed one error issue with SHMS calorimeter calibration code (discussed Dec 10th meeting), but still have one error
548
** PID efficiency script plots are complete, but still some questions he needs to work out before a final version
549
*** Eventually need to include tracking into PID efficiencies
550
** Pete brought up the question for a number of multi-hits we are getting
551
*** (Dead Time)+(Trigger efficiency)-EDTM
552
553
----
554 72 Richard Trotta
555 111 Richard Trotta
h3. Dec 10,2019
556 72 Richard Trotta
557 74 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/73
558
559
* Garth and Stephen were in the most recent SIDIS meeting
560
** Wit had lots of hcana changes but they seem to be critical to our work 
561
*** Changes such as new detector classes
562 1 Richard Trotta
** Hopefully Wit will present these in the next commissioning meeting
563
564 77 Richard Trotta
* Stephen improved wiggles but still prevalent
565 74 Richard Trotta
566
* Richard finished HGCer calibrations, he concluded that the online parameters are sufficient
567
** He also has been looking at SHMS calorimeter calibrations but has had issues running the scripts. Most likely a pathing issue.
568
** The "tasks":https://redmine.jlab.org/projects/kltexp/wiki/Analysis_Tasks page has been updated with a section for efficiencies. 
569
*** A PID efficiency script is currently being developed and hopefully should have some plots for our next meeting.
570
571 75 Richard Trotta
----
572 74 Richard Trotta
573 111 Richard Trotta
h3. Nov 26,2019
574 71 Richard Trotta
575
*Links to talks->* "Richard":https://redmine.jlab.org/issues/480
576
577
* Stephen
578
** DC SHMS, small-angle has poor performance
579
*** Tighter cuts or PID (currently only looks for electrons)
580
** Vardan said calorimeter wiggles are an ongoing issue with no current solution
581
582
* Richard
583 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.
584 71 Richard Trotta
*** Richard will pick up looking at the HGCer calibrations from Vijay's scripts. 
585
*** Richard will also be looking at the SHMS calorimeter and with the suggestion of getting some negatively polarized SHMS runs from Hem.
586
** The HMS Cherenkov is finished with the conclusion that the calibrations from the online runs are good
587
** We can begin looking forward towards efficiencies. 
588
*** Garth suggested that looking at PID may be an advantageous first steps. Precise definitions of these PIDs will need to be logged.
589
*** Clear notes on efficiencies steps will be needed. They will need to be redefined multiple times in multiple ways. 
590
591
* Hem
592
** Has been looking at the calorimeter as well. 
593 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.  
594
595
----
596
597 111 Richard Trotta
h3. Nov 19,2019
598 1 Richard Trotta
599 70 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
600
601
* Richard
602
** Finished up TDC cut paper going through the procedure (found "here":https://redmine.jlab.org/issues/500)
603
** Needed to add Carlos pre-trigger designs to an appendix for the paper which clarifies the introduction section
604
605
* Stephen
606
** Issues with DC calibration for only a few runs during each run period
607
** "wiggles" in HMS calorimeter calibrations for some runs
608
*** few runs where HMS cal totally failed (which was dependent on initial parameters)
609
*** Spring looked worse than the rest (surprisingly), but this may be because online calibration wasn't great
610
611 2 Richard Trotta
----
612 68 Richard Trotta
613 111 Richard Trotta
h3. Nov 5,2019
614 68 Richard Trotta
615
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500
616
617
* Timing update (Stephen)
618
** Reference times between Richard and Stephen are very similar and the GitHub is updated accordingly
619
** Richard is going to add the trigger time cuts once the fall runs are finished (by end of week)
620
** First pass of detector reference time parameter files finished
621 1 Richard Trotta
622 68 Richard Trotta
* Peter's hcana code (Richard and Stephen)
623
** 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
624
*** Richard has emailed Peter about the issue with no response yet (follow-up soon)
625
** 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.
626
627
* Calibrations were decided to be done once per shift
628
629
* Next meeting schedule...
630 127 Richard Trotta
** Small meetings Nov 12 and Nov 19 (at 3pm EST) so Richard and Stephen can iron out the timing and calibrations
631
** November 26 (at 3pm EST) will be a larger meeting. 
632 68 Richard Trotta
*** This is the rough deadline we made for finishing up calibrations. 
633
*** 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!!
634
635
----
636
637 111 Richard Trotta
h3. Oct 22,2019
638 62 Richard Trotta
639 64 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
640 62 Richard Trotta
641 65 Richard Trotta
* SHMS Reference Time Amplitude Cuts(Stephen)
642
** Extra peaks in HG from cross-talk and "ghost-bands" due to ADC screw up
643
*** cuts applied on SHMS ADC ref time amplitude (greater than zero) done before any further event selection and histogram filling
644
** This is a temporary fix to "ghost-bands" and cross talk
645
*** Although for HG there is still a small peak. The hodoscope is fine.
646
** The time window is easier to set now.
647
** DC has been fine (since it uses TDC)
648
*** DC calibrations should be good to complete, other detectors need more fixes (i.e. the remaining "ghost-band")
649
** Hodoscope still bad but this might be because of that "ghost-band", needs to be further investigated
650
651 1 Richard Trotta
* Peter's hcana fixes for reference time (Richard)
652 67 Richard Trotta
** Peter implemented changes to hcana
653
** Two major issues...
654 1 Richard Trotta
## Amplitude goes to null and integral is low or negative which causes a rate-dependent efficiency. 
655 67 Richard Trotta
*** Peter has used the average pulse value acquired over a large sample of runs for each detector. 
656 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)
657 67 Richard Trotta
*** Peter created a routine to find the best offset by means of matching TDC and ADC
658
** Richard has been checking for bugs in the code. 
659
*** It seems to be ready to implement, Richard emailed Peter for confirmation on the implementation in our group directory
660
661 1 Richard Trotta
* Calibration of HMS detectors when the timing is agreed upon by Stephen and Richard.
662 67 Richard Trotta
** Besides hodoscope which still has an issue with the script
663 65 Richard Trotta
** Stephen and Richard are having a meeting late next week to determine time window values
664 62 Richard Trotta
*** These will be relatively final, but on the wider side if adjustments need to be made in the future
665
666 1 Richard Trotta
-----
667 61 Richard Trotta
668 111 Richard Trotta
h3. Sep 24,2019
669 61 Richard Trotta
670
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
671 1 Richard Trotta
672 61 Richard Trotta
-----
673 1 Richard Trotta
674 111 Richard Trotta
h3. Sep 10,2019
675 59 Vijay Kumar
676
*Links to talks->* "Stephen":https://redmine.jlab.org/documents/69 "Ali":https://redmine.jlab.org/documents/72 "Richard":https://redmine.jlab.org/issues/500
677 1 Richard Trotta
678
-----
679 55 Stephen Kay
680 111 Richard Trotta
h3. August 26, 2019
681 55 Stephen Kay
682
*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
683 1 Richard Trotta
684 54 Richard Trotta
----
685
686 111 Richard Trotta
h3. June 21, 2019
687 54 Richard Trotta
688 1 Richard Trotta
*Links to talks->* "Hallc Talk Outline":https://redmine.jlab.org/documents/60 
689 54 Richard Trotta
690 42 Stephen Kay
----
691
692 111 Richard Trotta
h3. June 14, 2019
693 1 Richard Trotta
694 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
695 42 Stephen Kay
696
697 35 Stephen Kay
----
698 1 Richard Trotta
699 111 Richard Trotta
h3. June 4, 2019
700 36 Vijay Kumar
701 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
702 35 Stephen Kay
703 1 Richard Trotta
704 35 Stephen Kay
----
705 1 Richard Trotta
706 111 Richard Trotta
h3. May 21, 2019
707 1 Richard Trotta
708
*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
709 35 Stephen Kay
710
----
711 1 Richard Trotta
712 111 Richard Trotta
h3. May 14, 2019
713 1 Richard Trotta
714 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
715 1 Richard Trotta
716 35 Stephen Kay
----
717 1 Richard Trotta
718 111 Richard Trotta
h3. April 30, 2019
719 1 Richard Trotta
720
*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
721 35 Stephen Kay
722 1 Richard Trotta
----
723
724
h3. February 4, 2019
725
726
*Links to talks->* "Richard":https://redmine.jlab.org/documents/43 "Stephen":https://redmine.jlab.org/documents/44
727
728
----
729 113 Richard Trotta
730 112 Richard Trotta
h2. 2018 Meetings
731 141 Stephen Kay
732
----
733 111 Richard Trotta
734
h3. August 21, 2018
735
736 1 Richard Trotta
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
737 35 Stephen Kay
738 1 Richard Trotta
----
739 35 Stephen Kay
740 111 Richard Trotta
h3. August 8, 2018
741 35 Stephen Kay
742
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
743 1 Richard Trotta
744
----
745 35 Stephen Kay
746 111 Richard Trotta
h3. August 3, 2018
747 1 Richard Trotta
748 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383
749
*Links to talks->*
750 1 Richard Trotta
751 35 Stephen Kay
----
752 1 Richard Trotta
753 111 Richard Trotta
h3. July 11, 2018
754 1 Richard Trotta
755 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383 #384
756 1 Richard Trotta
757 35 Stephen Kay
*Action items:*
758 1 Richard Trotta
759 35 Stephen Kay
* Update run plan, e.g. add prescales (Garth)
760
* Check on details of: magnet cycling procedure, minimum angles, MCC fringe field steering, beam energy measurements, optics checks (Tanja)
761
* Identify additional run coordinators (Tanja)
762
* Encourage collaborators to take shifts, e.g. FIU (Pete)
763
* Draft email about shifts etc. to collaboration (Tanja)
764
* Develop diagnostic scripts and kaonLT specific (Richard, Ryan)
765
* Continue documentation development, e.g. checklist, shift taker instructions, HowTo or link to generic Hall C HowTo, task list, web page (Richard, Garth)
766 1 Richard Trotta
767 35 Stephen Kay
*Discussions:*
768
769
* 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
770
* HGC: waiting for re-installation
771
* Trigger checkout: main items to keep in mind: fADC thresholds, timing HMS/SHMS - leading arm, possible rate limitations
772 1 Richard Trotta
* Shifts
773
* Diagnostics scripts and documentation
774
* Personnel schedules
775
776
----
777
778 111 Richard Trotta
h3. June 28, 2018
779 1 Richard Trotta
780
*Links to talks->* "Richard":https://redmine.jlab.org/documents/34
781
782
*Action Items:*
783
784
* Develop and post shift schedule. Send out request. Find out who is KAONLT liaison (Tanja)
785
* Contact potential run coordinators. (Tanja)
786
* Aerogel tray exchange for start of experiment and coordination of future exchanges (Vladimir)
787
* Update runplan and prepare documents needed for shift crew, e.g. run sheets (Garth)
788
* Set up a web page to collect and link from Redmine - How-To documents, initial calibrations, etc. (Garth, Richard)
789
* 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)
790
* Develop trigger/detector checkout plan (Tanja, initial draft)
791
** Are all experts available at run start, experts needed: coincidence timing , Harp Scans, BCM calibrations, ...
792
* 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)
793
* Find out if all aerogel trays needed for experiment can be stored inside Hall C to avoid having to open truck ramp (Vladimir)
794
795
*Analysis Updates:*
796
797
* Ryan 
798
** resolving differences between his analysis and Richard's
799
800
* Richard
801
** 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
802
** 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.
803
804
----
805
806 111 Richard Trotta
h3. May 31, 2018
807 1 Richard Trotta
808 35 Stephen Kay
*Links to talks->* "Samip":https://redmine.jlab.org/documents/30
809 1 Richard Trotta
810 35 Stephen Kay
----
811 1 Richard Trotta
812 111 Richard Trotta
h3. May 17, 2018 
813 1 Richard Trotta
814 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
815 2 Richard Trotta
816 35 Stephen Kay
* Luminosity scans (Richard, Ryan)
817 111 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
818 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
819
** discussion about pre-scale factors
820 1 Richard Trotta
821 35 Stephen Kay
* Discussion about Richard's script extracting and printing information from report files and trees including histograms
822
** Add option for looking at yields with cuts on cointime, target window, and missing mass
823
** Add option to look at real peak vs. background level
824 1 Richard Trotta
825 35 Stephen Kay
* H(e,e'p) kinematics investigation for fall run (Samip)
826
** 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
827 1 Richard Trotta
828 35 Stephen Kay
* *Action Items*
829
** Luminosity scans at low rates from January (Richard)
830
** Luminosity scans from April with corrected efficiencies, e.d. DT (Ryan)
831
** H(e,e'p) and H(e,e') kinematics for upcoming Kaon LT run (Samip)
832
** Kaon LT detailed run plan (Garth, Pete, Tanja)
833
** Preparations, e.g. report files, diagnostic histograms and real time monitoring, shift worker instructions, optimization of trees (all)
834 1 Richard Trotta
835
----
836
837 111 Richard Trotta
h3. May 10, 2018
838 35 Stephen Kay
839 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
840 35 Stephen Kay
841
* Luminosity Scans January 2018 (Richard)
842
** Tracking-based analysis for Runs 1415-1423, .. for now focus on HMS, typical HMS S1X rates are <
843
** Cuts applied: PID for electrons (Cer, Cal), acceptance (delta)
844
** Efficiency calculation was investigated in detail and applied using scalers from trees
845
** Results for carbon (normalized to 30uA) show large variation - need to understand
846
** *Next steps:*
847
*** Double check calculation of computer lifetime, look for differences in TRIG and PRETRIG scalers
848
*** Check stability of pre-scale (Ryan saw changes within runs)
849
*** Check if detector calibrations for runs are implemented correctly
850
*** Analyze with Ryan's cuts
851 1 Richard Trotta
852 35 Stephen Kay
* Luminosity Scans April 2018 (Ryan)
853
** Confirms Richard's earlier finding that scaler-based analysis is not reliable and that it's best to analyze event-by-event
854
** Tracking-based analysis for runs 2073-2095
855
** Cuts applied: PID for electrons (TOF, Cal, Chi2), acceptance (delta and angles), BCM4a
856
** Included most recent detector calibrations in replay of these runs
857
** Efficiencies from report file mainly, may need to update tracking efficiency implementation
858
** Found that calculations of computer deadtime requires different set of scalers for runs from January to those from April 2018
859
** Results show carbon yields consistent with unity within error (0.5% error bars), and boiling for hydrogen and deuterium
860
** *Next steps:*
861 5 Richard Trotta
*** Check tracking efficiency
862 35 Stephen Kay
863
* *Global comments on Luminosity Scans (so far)*
864 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.
865 35 Stephen Kay
** Efficiencies in report files need to be updated, e.g. CPU deadtime (Richard)
866
** Check if BCM4a is the one closest to the target - get a map of the hall (Richard, Ryan)
867
** Uncertainties on current
868
** Detector calibrations
869 1 Richard Trotta
** HMS vs. SHMS
870 35 Stephen Kay
871
* eK+ coincidence time from SIDIS Spring 2018 run (Samip)
872
** Worked with Mark Jones on coincidence time calculation - now available in hcana (see Samip's 10 May 2018 email for more details)
873
** runs used in this analysis: 3423 with Q2=3.1 GeV2 and W=2.78 GeV
874
** Coincidence time spectrum shows peak separations >2 ns corresponding to different accelerator frequency
875
** Missing mass spectra: Kaon peak clearly visible, also see pions even after cuts
876
** Found that pions appear localized in phase space - seems to be due to end point in kinematic phase space
877 1 Richard Trotta
** *Next steps:*
878 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)
879 35 Stephen Kay
880
* Yield normalized ratios from SIDIS (Hem)
881
** Yield ratios of data to MC match well in shape, but normalization seems not quite right
882
** *Next steps:*
883 4 Richard Trotta
*** Check if efficiencies, currents, run time etc. are taken into account correctly
884
885
----
886 35 Stephen Kay
887 111 Richard Trotta
h3. April 26, 2018
888 4 Richard Trotta
889 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
890 4 Richard Trotta
891 35 Stephen Kay
* Discussion luminosity scan analysis (earlier scan) - Richard
892
** 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
893
** Notes on efficiencies in report file:
894
*** DT (EDTM) is not electronic deadtime. Instead use for now 50ns* trigger rate for HMS and 100ns* trigger rate for SHMS
895
*** Cherenkov efficiency seems low (check if that is due to PID, thresholds, pi/e, etc)
896
*** Tracking efficiency needs to be checked
897
*** 3/4 trigger efficiency seems ok
898
* Discussion luminosity scan analysis (later scan) - Ryan
899
** Fewer carbon runs than earlier scan
900
** Shown is a tracking-based analysis using data from the ROOT trees
901 111 Richard Trotta
** First results for carbon, LH3, and LD2, but efficiencies need to be checked
902 35 Stephen Kay
* SIDIS analysis - Hem
903
** Shown is a data/MC comparison for different kinematic settings. Agreement in shape is very good. Normalization has yet to be applied.
904
** Discussion about agreement in z and apparent offset - relation of this offset with spectrometer offset
905
* Analysis of exclusive events in SIDIS - Samip
906
** Shown is a look at the first kaon events in exclusive limit of SIDIS data
907
** Ongoing work on implementing coincidence time into tree
908
* Discussion of run plan, and in particular possible low Q2/low energy
909
** Assume that kaon low Q2=0.4 already included - have kinematics with specified beam energies, if needed
910
** 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
911
** Garth will put this together in a draft email
912
913 12 Richard Trotta
----
914
915 111 Richard Trotta
h3. March 29, 2018
916 12 Richard Trotta
917 35 Stephen Kay
*Links to talks->* "Richard, ":https://redmine.jlab.org/documents/16 "Samip":https://redmine.jlab.org/documents/27
918 13 Richard Trotta
919 35 Stephen Kay
* Details of adding points to fall run plan - will be ready sooner, likely in week of 4/1 (Garth, Samip, Tanja)
920
* Luminosity scans (Ryan, Andres, Richard, Pete)
921
* Macros, SIDIS analysis (Hem, Anashe)
922
* Elastic data (TBD)
923
924 14 Richard Trotta
----
925 18 Richard Trotta
926 111 Richard Trotta
h3. February 22, 2018
927 18 Richard Trotta
928 35 Stephen Kay
*Links to talks->* "Andres":https://redmine.jlab.org/documents/19
929 18 Richard Trotta
930 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.
931
* Brief description of Samip's work - working on coincidence timing decoding with JLab staff and re-optimization of kinematics
932
* Discussion of Richard's slides on run plan kinematics and preparations -
933
** 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
934
** 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
935
** for each setting will need 1-2 shifts for calibrations - need to negotiate with other experiments in run group
936
** kinematics plots W-Q2 show that still need to do some optimization
937
** run sheets: include raster size, update coincidence count labeling, and carbon target labeling
938
* Discussion of next meeting. Garth at JLab 8-16 March - might have meeting during that time.
939 26 Richard Trotta
940 35 Stephen Kay
* *Action Items:*
941
** Post slides/notes from this meeting and procedure to set up hcana in Redmine (Tanja)
942
** Update run sheet and kinematic optimization for W/Q2 (Garth)
943
** Circulate elastic calculations for kinematic settings (Samip)
944
** Continue investigation of elastic data and run plan kinematics (Andres/Richard)
945
** Test software installation instructions (Pete)
946
** 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) 
947 32 Stephen Kay
948
----