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Kaon LT Meetings » History » Version 310

Richard Trotta, 05/03/2022 01:57 PM

1 116 Richard Trotta
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3 293 Garth Huber
h1. *KaonLT/PionLT Meetings*
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5 293 Garth Huber
KaonLT/PionLT collaboration analysis meetings. Please add your talk to the meeting ahead of time. Add the newest meeting to the top of the list!
6 262 Richard Trotta
7 244 Vijay Kumar
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8 284 Vijay Kumar
9 282 Vijay Kumar
h2. 2022 Meetings
10
11 299 Garth Huber
h3. May 3, 2022
12 303 Vijay Kumar
13 308 Ali Usman
* Ali
14
** Fixed all the settings for high Q2 KaonLT data. Also slide on accessing spectrometer angles from CODA
15
** attachment:KaonLT_May_3.pdf
16 309 Richard Trotta
* Richard
17 310 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
18 302 Vijay Kumar
* Vijay 
19 304 Vijay Kumar
** The SIMC simulation study of the PinoLT data at Q2 = 0.38 and 0.42 GeV2 has completed (preliminary) for all settings.
20 305 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 .
21 299 Garth Huber
22 300 Garth Huber
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23
24 296 Vijay Kumar
h3. April 19, 2022
25 299 Garth Huber
26
* Garth's Notes attachment:mtg_22apr19.txt
27 296 Vijay Kumar
* Vijay 
28 298 Vijay Kumar
** SIMC simulation updates at Q2 = 2.7, 3.6 and 4.5 GeV2. attachment:Vijay_KaonLT_Meeting_Apr19_2022.pdf  
29 296 Vijay Kumar
30
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31
32 282 Vijay Kumar
h3. April 06, 2022
33 294 Garth Huber
34 306 Vijay Kumar
* Ali 
35
**  attachment:Analysis_Update_Apr_6.pdf 
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37 293 Garth Huber
* Garth's Notes attachment:mtg_22apr06.txt
38 290 Richard Trotta
* Richard 
39
** attachment:KaonLTMeeting4_6_22.pdf
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** The analysis of the 10.6 GeV heep coin/singles settings are still ongoing. 
41
** There were some issues getting the replays working for the singles runs and the analysis. Things finally were sorted out yesterday (and this morning).
42
** The SHMS heep singles are presented. Overall, they look fine. There are still some things to sort out.
43 291 Richard Trotta
** The HMS heep singles are still running.
44 282 Vijay Kumar
* Vijay 
45
** The simulation study of the 4.9 GeV KaonLT data has completed.
46
** This energy has left, center and right settings data. All these settings look fine. 
47 285 Vijay Kumar
** See the pdf for more info. attachment:Vijay_KaonLT_Meeting_Apri_06_2022.pdf  
48 306 Vijay Kumar
49 288 Richard Trotta
50 295 Garth Huber
Next meeting April TBD
51 284 Vijay Kumar
52 1 Richard Trotta
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53 284 Vijay Kumar
54 281 Richard Trotta
h3. March 23, 2022
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56 281 Richard Trotta
* Garth's Notes attachment:mtg_22mar23.txt
57 278 Richard Trotta
* Richard 
58
** 10.6 GeV heep coin was analyzed. Things look pretty good so far, still some work to be done. attachment:KaonLTMeeting3_23_22.pdf
59
** Heep singles are next up. There have been issues replaying these runs but Ali may have fixed this issue with his parameter file changes.
60 279 Nathan Heinrich
* Nathan
61 280 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.
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** after changing back to 1 discrepancy resolved. Slides: attachment:Mode10Update_2022Mar23.pdf
63 278 Richard Trotta
64
Next meeting April 6th @ 1 EDT
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h3. March 9, 2022
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70 271 Garth Huber
* Garth's Notes attachment:mtg_22mar09.txt
71 267 Richard Trotta
* Richard 
72
** Vijay's scripts are working and Richard reproduced some of his previous plots. attachment:KaonLTMeeting3_9_22.pdf
73
** The next step is to do a full analysis of the 10.6 GeV heep coin/singles data.
74 268 Nathan Heinrich
* Nathan
75
** Update on the current state of mode 10: attachment:Mode10Update_2022Mar9.pdf 
76
** See Mark Jones' slide on changes to hcana: https://redmine.jlab.org/attachments/1424
77 267 Richard Trotta
78 1 Richard Trotta
Next meeting March 23th @ 1 EDT
79 277 Garth Huber
80
* Regina March 4 meeting on pion leak through in (e,e'K+) analysis attachment:grp_22mar04.txt
81 269 Richard Trotta
82 261 Garth Huber
---
83
84 271 Garth Huber
h3. February 23, 2022
85 273 Garth Huber
86 271 Garth Huber
* Garth's Notes attachment:mtg_22feb23.txt
87
88 272 Garth Huber
---
89
90 244 Vijay Kumar
h3. January 26, 2022  
91
92 271 Garth Huber
* Garth's Notes attachment:mtg_22jan26.txt
93 253 Vijay Kumar
* Vijay, Heep updates from the PionLT experiment. attachment:Analysis_Updates_Jan26_2022.pdf 
94 251 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   
95 252 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
96 246 Vijay Kumar
** The 3.6 and 4.5 GeV data do not have elastic data.
97 250 Vijay Kumar
** Coin: 2.7, 3.6 and 4.5 GeV. attachment:Analysed_2p7.pdf attachment:Analysed_3p6.pdf attachment:Analysed_4p5.pdf   
98 254 Nathan Heinrich
* Nathan, Short update on the Mode 10
99 255 Nathan Heinrich
** Short update. May need to update hcana to change software voltage threshold. attachment:2022-01-26NathanHeinrich.pdf
100 256 Jacob Murphy
* Jacob, EDTM Study 2
101 260 Jacob Murphy
** EDTM study with beam, taken during LUMI Scan 3
102 255 Nathan Heinrich
** Early look at 3rd EDTM Study
103 248 Vijay Kumar
** Additional notes on increased deadtime in SHMS at High Current. attachment:PionLT_EDTM_Study2_Analysis.pdf
104 113 Richard Trotta
105 222 Richard Trotta
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106 200 Richard Trotta
107 236 Garth Huber
h3. January 12, 2022  
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* Garth's Notes attachment:mtg_22jan12.txt
110
* Junaid
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** PID study
112
* Vijay
113 240 Vijay Kumar
** Heep-singles study attachment:Analysis_Updates1_Jan12.pdf 
114 238 Vijay Kumar
115 236 Garth Huber
* Nathan
116
** Mode-10 data variables
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118 243 Richard Trotta
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119
120 234 Garth Huber
h3. January 5, 2022  
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122 235 Garth Huber
* Garth's Notes attachment:mtg_22jan05.txt
123 221 Richard Trotta
* Stephen
124
** Stephen was updating GitHub but UTIL_BATCH has some permissions issues
125
* Richard
126
** Update to KLT task schedule
127
** Meeting between Richard and Vijay to discuss task breakdown Friday, January 7th at 11 am EST
128
** EDTM study 2 will done sometime this weekend
129 223 Richard Trotta
* Vijay
130
** Breakdown of HEEP single analysis for low Q2 data
131 224 Richard Trotta
*** Shapes of SIMC and data are very off
132
*** It seems to be a systematic issue on Vijay's part because the same issue is being seen in PLT data
133 231 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.  
134 229 Vijay Kumar
** https://redmine.jlab.org/attachments/1376
135 228 Vijay Kumar
** https://redmine.jlab.org/attachments/1375
136 225 Nathan Heinrich
* Nathan
137
** Update on fADC mode 10 studies and the fADC deadtime studies
138
** https://redmine.jlab.org/attachments/1372
139 226 Jacob Murphy
* Jacob
140
** Summary of EDTM analysis so far in the PionLT experiment
141 227 Jacob Murphy
** https://redmine.jlab.org/attachments/1373
142 242 Richard Trotta
143 221 Richard Trotta
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144
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h2. 2021 Meetings
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h3. August 4, 2021
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* Richard
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** 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).
151
** Issues with the COIN are seen but may be a replay issue.
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155 217 Richard Trotta
h3. July 21, 2021
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* "Richard":https://redmine.jlab.org/attachments/download/1250/KaonLTMeeting7_14_21.pdf
158 217 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.
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160 218 Richard Trotta
Next meeting August 4th @ 4:30 ED
161 217 Richard Trotta
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164 215 Richard Trotta
h3. May 12, 2021
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* Richard
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** The currents were adjusted from 1-10 uA with little effect on the EDMTLT but proper changes to the CPULT. The replay bcm cut script developed by Sanghwa was also analyzed to see if it may be causing the issue but it had the same effects. There was also a small error in the code found where T.coin.pEDTM.tdcTimeRaw was incorrectly written as T.coin.pEDTM.tdcTime.
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Next meeting May 26th @ 4:30 ED
170 215 Richard Trotta
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173 213 Richard Trotta
h3. April 28, 2021
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* Richard
176 214 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.
177 213 Richard Trotta
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Next meeting May 12th @ 4:30 EDT
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182 211 Richard Trotta
h3. April 14, 2021
183 212 Richard Trotta
184 211 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_4_14_21.pdf
185
** 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). 
186
** Some PionLT carbon runs were looked at but there are still some issues (either cut or pathing related).
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Next meeting April 14th @ 4:30 EDT
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192 203 Richard Trotta
h3. March 31, 2021
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194 206 Richard Trotta
* Richard
195 209 Richard Trotta
** Luminosity studies
196
*** PionLT carbon runs
197
**** Still having issues getting decent results. I think I am just missing a definition somewhere that I need to track down
198
*** Uncertainties
199
**** Easy to do, I just need to put it into my script
200
** Explicit PS calculations
201
*** I have gotten a rough script working for very simple runs (ie low rate, single spectrometer, calibration runs)
202
*** I am trying to expand to lumi singles runs, things get a bit more complex so I am just working out the trigger correlations
203
** Pass 2 runs
204
*** DEF-files
205
**** I checked out the DEF-files for our combination of the nested files
206
**** There are a lot a files (~150!!!!) and may be hard to track so next week *we should make a flowchart together*
207
**** Working on my list of branches for the next replay
208
***** Mainly just working on my list of branches for the explicit PS calculations
209
***** *Everyone should have a list of these branches by next mini-meeting (4/7/21)*
210 210 Stephen Kay
* Stephen
211
** Updated DEF-File for the "full" replay
212
*** Can't remove NData brances, Mark says they won't take up too many resources anyway
213
*** Removed individual PMT info and raw info for many detectors, reduced file size by factor ~2
214
** Updating DEF-files/scripts for calibrations as part of PionLT prep
215
** Will focus on DEF-file/DEF-cut file updates over next week
216
*** Will investigate HeeP replays over rest of this week.
217 207 Richard Trotta
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219 203 Richard Trotta
220
Next meeting April 14th @ 4:30 EDT
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223
224 201 Stephen Kay
h3. March 24, 2021
225
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* KaonLT Mini Meeting focusing on Pass2 preparation
227
* "Task summary from Richard":https://redmine.jlab.org/projects/kltexp/wiki/Replay_2_Tasks
228
229 202 Stephen Kay
Next meeting March 31st @ 4:30 EDT
230 201 Stephen Kay
231
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232
233 200 Richard Trotta
h3. March 17, 2021
234
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* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_3_17_21.pdf
236 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.
237 202 Stephen Kay
* Mini meeting March 24th @ 4:30 EDT
238 201 Stephen Kay
239
Next meeting March 31st @ 4:30 EDT
240 200 Richard Trotta
241
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242 194 Richard Trotta
243 199 Richard Trotta
h3. March 3, 2021
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* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_3_3_21.pdf
246
** 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). 
247
** 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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Next meeting March 17th @ 4:30 EST
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254 196 Richard Trotta
h3. February 17, 2021
255 194 Richard Trotta
256
* Richard
257
** 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.
258
259 198 Nathan Heinrich
* Nathan
260
** Presented an update on the Hodoscope Calibrations: https://redmine.jlab.org/attachments/download/1196/HodoscopeUpdate_2021Feb17.pdf
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Next meeting March 3rd @ 4:30 EST
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266 196 Richard Trotta
h3. February 3, 2021
267 193 Richard Trotta
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* Richard
269
** A table with the aerogel efficiency for kaons is being created. It will be expanded to other particles and detectors.
270
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Next meeting February 17th @ 4:30 EST
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274
275 196 Richard Trotta
h3. January 20, 2021
276 191 Richard Trotta
277
* "Richard":https://redmine.jlab.org/attachments/download/1172/KaonLTMeeting_1_20_21.pdf
278
** 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.
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280 1 Richard Trotta
281 191 Richard Trotta
Next meeting February 3rd @ 4:30 EST
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285 196 Richard Trotta
h3. January 6, 2021
286 190 Richard Trotta
287
* "Richard":https://redmine.jlab.org/attachments/download/1153/KaonLTMeeting1_6_21.pdf
288 186 Richard Trotta
** Analyzed most of the luminosity scans. There are a few issues I am investigating still which seem to be run related.
289
* Vijay
290
** 
291 1 Richard Trotta
292 191 Richard Trotta
Next meeting January 20th @ 4:30 EST
293 186 Richard Trotta
294
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296
297
h2. 2020 Meetings
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299 185 Richard Trotta
h3. December 2, 2020
300
 
301
* Carlos
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** 
303
* Ali and Richard
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** 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.
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* Stephen
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** 
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* Vijay
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** 
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Next meeting December 16th @ 4:30 EST
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314 180 Richard Trotta
h3. November 18, 2020
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* Ali
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** 
318 183 Richard Trotta
* "Carlos":https://redmine.jlab.org/attachments/download/1103/LiveTime_Study_cyero.pdf
319 181 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.
320 180 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1101/KaonLTMeeting11_18_20.pdf
321
** Scaler analysis matches Carlos' code now. Overall significant improvements were made through some cut adjustments and incorrect variable definitions.
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* Stephen
323 182 Richard Trotta
** Updated the hallc_replay_lt with parameter files for all coin peaks.
324 180 Richard Trotta
* Vijay
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** 
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327 184 Richard Trotta
Next meeting December 2nd @ 4:30 EST
328 180 Richard Trotta
329
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331 178 Richard Trotta
h3. November 4, 2020
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* Ali
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** 
335
* "Richard":https://redmine.jlab.org/attachments/download/1092/KaonLTMeeting11_4_20.pdf
336 179 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.
337 178 Richard Trotta
* Stephen
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** 
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* Vijay
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** 
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Next meeting November 18th @ 4:30 EST
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345 141 Stephen Kay
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347 170 Richard Trotta
h3. October 28, 2020
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* Ali
350 177 Richard Trotta
** Went over some of his tracking procedures for the report file implementation
351 172 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1091/KaonLTMeeting10_28_20.pdf
352 173 Richard Trotta
** Luminosity analysis continues. There are still some issues but things have improved a bit.
353 171 Stephen Kay
* "Stephen":https://redmine.jlab.org/attachments/download/1090/KaonLT_Meeting_28_10_20.pdf
354
** Discussion of CT peak analysis, progress and outline of what's left to do with this
355 174 Richard Trotta
* Vijay
356 176 Richard Trotta
** Dry run for Mark's hallc meeting tomorrow (10/29)
357 170 Richard Trotta
358 177 Richard Trotta
Next meeting November 4th @ 4:30 EST
359 170 Richard Trotta
360
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362 164 Richard Trotta
h3. October 14, 2020
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364 168 Richard Trotta
* Ali
365 164 Richard Trotta
** Working through the REPORT_FILES template to get everything working and outputting proper information.
366
* "Richard":https://redmine.jlab.org/attachments/download/1085/KaonLTMeeting_10_14_20.pdf
367
** Updates on lumi scans. There are many issues from Scalers to Tracking that need to be resolved.
368 167 Richard Trotta
* Stephen
369 164 Richard Trotta
** He has included a demo for using the python analysis script in the README.
370 1 Richard Trotta
371 170 Richard Trotta
Next meeting October 28th @ 4:30 EST
372 164 Richard Trotta
373
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375 161 Richard Trotta
h3. September 23, 2020
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* "Richard":https://redmine.jlab.org/attachments/download/1078/KaonLTMeeting_9_23_20.pdf
378
** 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. 
379
* Stephen
380 162 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.
381
* Petr
382
** Data fitting algorithm based on E.H. Bellamy paper. Extracts PMT spectra from ROOT file and makes a 1D projection histogram.
383 161 Richard Trotta
384 163 Richard Trotta
Next meeting October 14th @ 4:30 EST
385 161 Richard Trotta
386
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387
388 149 Richard Trotta
h3. September 9, 2020
389 156 Richard Trotta
390
* Richard
391 157 Richard Trotta
** Still working on run list, GUI checks
392 156 Richard Trotta
* "Stephen":https://redmine.jlab.org/issues/567
393
** New slim replay scripts and full replay scripts updated
394
* Ali
395
** Him and Stephen found an issue (already aware of) with zeros in the parameter files using Mark's hcana changes
396
** Need to be vigilant of crashed replays because this is probably the issue
397 158 Richard Trotta
* Vijay
398 156 Richard Trotta
** Nearly finished with HGcer calibrations
399 1 Richard Trotta
400 161 Richard Trotta
Next meeting September 23rd @ 4:30 EST
401 156 Richard Trotta
402
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403
404
h3. August 26, 2020
405
406 149 Richard Trotta
*Links to talks->* "Ali":https://redmine.jlab.org/issues/483 "Vijay":https://redmine.jlab.org/issues/479
407 154 Richard Trotta
408
* Richard
409
** 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.
410
* Stephen
411
** Updated on RF times. There were a few issues with some runs, but overall most are finished.
412
* Ali
413
** 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)
414
* Vijay
415 150 Richard Trotta
** Updated the SHMS HGCher analysis. The calibrations are coming along, but a little more work needs to be finished up.
416 1 Richard Trotta
417 156 Richard Trotta
Next meeting September 9 @ 5 EST
418 150 Richard Trotta
419 149 Richard Trotta
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420
421 144 Richard Trotta
h3. July 29, 2020
422 147 Stephen Kay
423 148 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
424 146 Stephen Kay
425 155 Richard Trotta
* Stephen
426
** Updates on scripts to set pedestal defaults and AdcTdc offsets after hcana change
427
* Richard
428
** Updated plan and schedule for the analysis going forward
429 1 Richard Trotta
430 150 Richard Trotta
Next meeting August 26th @ 4:30 EST
431
432 144 Richard Trotta
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433
434 139 Richard Trotta
h3. July 8, 2020
435 1 Richard Trotta
436 139 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
437 150 Richard Trotta
438 140 Richard Trotta
Next meeting July 29 @ 4:30 EST
439 139 Richard Trotta
440
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441
442 132 Richard Trotta
h3. June 24, 2020
443
444 143 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
445 137 Richard Trotta
Next meeting July 8th @ 4:30 EST
446 132 Richard Trotta
447
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448
449 129 Richard Trotta
h3. June 9, 2020
450
451 135 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
452 129 Richard Trotta
453 131 Richard Trotta
Next meeting June 24th @ 4:30 EST
454 129 Richard Trotta
455
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456
457 125 Richard Trotta
h3. May 27, 2020
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459 126 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
460 128 Richard Trotta
461 127 Richard Trotta
Next meeting June 9th @ 4:30 EST
462 125 Richard Trotta
463
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464
465 118 Stephen Kay
h3. May 13, 2020
466 124 Richard Trotta
467 138 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
468 1 Richard Trotta
469 127 Richard Trotta
Next meeting May 27th @ 4:30 EST
470 118 Stephen Kay
471 121 Richard Trotta
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473 111 Richard Trotta
h3. April 29, 2020
474
475 138 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
476 106 Richard Trotta
477 127 Richard Trotta
Next meeting May 13th @ 4:30 EST
478 106 Richard Trotta
479 1 Richard Trotta
----
480 106 Richard Trotta
481 111 Richard Trotta
h3. April 15, 2020
482 104 Richard Trotta
483 102 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/attachments/download/977/KaonLTMeeting_4_15_20.pdf
484 105 Richard Trotta
485 127 Richard Trotta
Next meeting April 29th @ 4:30 EST
486 1 Richard Trotta
487 102 Richard Trotta
----
488 95 Stephen Kay
489 111 Richard Trotta
h3. April 1, 2020
490 100 Stephen Kay
491 138 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
492 101 Richard Trotta
493 127 Richard Trotta
Next meeting April 15th @  4:30 EST
494 101 Richard Trotta
495 41 Stephen Kay
----
496 93 Richard Trotta
497 111 Richard Trotta
h3. March 18, 2020
498 93 Richard Trotta
499
*Links to talks->* "Richard's EIC Temple Draft 2":https://redmine.jlab.org/attachments/download/942/DRAFT2_mesonSF_EIC_Temple.pdf
500 1 Richard Trotta
501 127 Richard Trotta
Next meeting April 1st @  4:30 EST
502 93 Richard Trotta
503
----
504 91 Richard Trotta
505 111 Richard Trotta
h3. March 11, 2020
506 92 Richard Trotta
507 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
508 94 Richard Trotta
509 127 Richard Trotta
Next meeting March 18th @  4:30 EST
510 91 Richard Trotta
511
----
512 88 Richard Trotta
513 111 Richard Trotta
h3. Feb 26, 2020
514 90 Richard Trotta
515
* Peter's changes to hcana should be coming soon. Richard will check with Mark when he is down there for an update.
516
* Need to incorporate the latest "BCM updates":https://hallcweb.jlab.org/doc-public/ShowDocument?docid=1034 from Dave Mack.
517 1 Richard Trotta
* Richard should look at the luminosity scalar analysis before and after the BCM changes once he gets his script working again.
518 88 Richard Trotta
**  He is checking with Mark about this while he is down in jlab. 
519 1 Richard Trotta
520 127 Richard Trotta
Next meeting March 11th @  4:30 EST
521 86 Richard Trotta
522 1 Richard Trotta
----
523 86 Richard Trotta
524 111 Richard Trotta
h3. Feb 10, 2020 
525 87 Richard Trotta
526 127 Richard Trotta
Next meeting Feb 26th @ 11 am EST
527 86 Richard Trotta
528
----
529 1 Richard Trotta
530 111 Richard Trotta
h3. Jan 22, 2020
531 83 Richard Trotta
532
*Links to talks->* "Richard's Hall C Winter Talk Draft 1":https://redmine.jlab.org/attachments/download/937/KaonLTHallC_WinterTalk2020_Draft1.pdf
533 85 Richard Trotta
534 127 Richard Trotta
Next meeting Feb 10 @ 11 am EST
535 83 Richard Trotta
536 1 Richard Trotta
----
537 83 Richard Trotta
538 111 Richard Trotta
h3. Jan 15,2020
539 81 Richard Trotta
540 82 Richard Trotta
*Links to talks->* "Richard's Hall C Winter Talk Outline":https://redmine.jlab.org/attachments/download/936/KaonLTHallC_WinterTalk2020.pdf
541 81 Richard Trotta
542 127 Richard Trotta
Next meeting Jan 22 @ 11 am EST
543 81 Richard Trotta
544
----
545 78 Richard Trotta
546 111 Richard Trotta
h3. Jan 8,2020
547 78 Richard Trotta
548 1 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/76
549 79 Richard Trotta
550 1 Richard Trotta
* Richard
551
** PID efficiency script is coming together
552
*** Tighter cuts and cuts on timing, beta, etc. will be needed for cleaner electron cuts
553
*** 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.
554
555
Next meeting will be January 15th at 4 pm EST 
556
557 80 Richard Trotta
----
558 113 Richard Trotta
559 112 Richard Trotta
h2. 2019 Meetings
560 80 Richard Trotta
561 141 Stephen Kay
----
562
563 111 Richard Trotta
h3. Dec 17,2019
564
565 77 Richard Trotta
Reminder: Mark Jones' commissioning analysis meetings are bi-weekly and announced by Mark
566
567
* Stephen
568
** Number of passes finished for HMS calorimeter
569
*** Still wiggles in all passes
570
** Finished his report on calibrations, "DC and Calorimeters":https://redmine.jlab.org/documents/74
571
** 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
572
*** CUA will be putting together a similar list
573 1 Richard Trotta
574 77 Richard Trotta
* Richard
575
** Fixed one error issue with SHMS calorimeter calibration code (discussed Dec 10th meeting), but still have one error
576
** PID efficiency script plots are complete, but still some questions he needs to work out before a final version
577
*** Eventually need to include tracking into PID efficiencies
578
** Pete brought up the question for a number of multi-hits we are getting
579
*** (Dead Time)+(Trigger efficiency)-EDTM
580
581 127 Richard Trotta
Next meeting will be after the break; Wednesday, January 8th at 3 pm EST
582 77 Richard Trotta
583
----
584 72 Richard Trotta
585 111 Richard Trotta
h3. Dec 10,2019
586 72 Richard Trotta
587 74 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/73
588
589
* Garth and Stephen were in the most recent SIDIS meeting
590
** Wit had lots of hcana changes but they seem to be critical to our work 
591
*** Changes such as new detector classes
592 1 Richard Trotta
** Hopefully Wit will present these in the next commissioning meeting
593
594 77 Richard Trotta
* Stephen improved wiggles but still prevalent
595 74 Richard Trotta
596
* Richard finished HGCer calibrations, he concluded that the online parameters are sufficient
597
** He also has been looking at SHMS calorimeter calibrations but has had issues running the scripts. Most likely a pathing issue.
598
** The "tasks":https://redmine.jlab.org/projects/kltexp/wiki/Analysis_Tasks page has been updated with a section for efficiencies. 
599
*** A PID efficiency script is currently being developed and hopefully should have some plots for our next meeting.
600
601 127 Richard Trotta
* Next meeting will be December 17th at 3 pm EST.
602 74 Richard Trotta
603 75 Richard Trotta
----
604 74 Richard Trotta
605 111 Richard Trotta
h3. Nov 26,2019
606 71 Richard Trotta
607
*Links to talks->* "Richard":https://redmine.jlab.org/issues/480
608
609
* Stephen
610
** DC SHMS, small-angle has poor performance
611
*** Tighter cuts or PID (currently only looks for electrons)
612
** Vardan said calorimeter wiggles are an ongoing issue with no current solution
613
614
* Richard
615 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.
616 71 Richard Trotta
*** Richard will pick up looking at the HGCer calibrations from Vijay's scripts. 
617
*** Richard will also be looking at the SHMS calorimeter and with the suggestion of getting some negatively polarized SHMS runs from Hem.
618
** The HMS Cherenkov is finished with the conclusion that the calibrations from the online runs are good
619
** We can begin looking forward towards efficiencies. 
620
*** Garth suggested that looking at PID may be an advantageous first steps. Precise definitions of these PIDs will need to be logged.
621
*** Clear notes on efficiencies steps will be needed. They will need to be redefined multiple times in multiple ways. 
622
623
* Hem
624
** Has been looking at the calorimeter as well. 
625 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.  
626
627
----
628
629 111 Richard Trotta
h3. Nov 19,2019
630 1 Richard Trotta
631 70 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
632
633
* Richard
634
** Finished up TDC cut paper going through the procedure (found "here":https://redmine.jlab.org/issues/500)
635
** Needed to add Carlos pre-trigger designs to an appendix for the paper which clarifies the introduction section
636
637
* Stephen
638
** Issues with DC calibration for only a few runs during each run period
639
** "wiggles" in HMS calorimeter calibrations for some runs
640
*** few runs where HMS cal totally failed (which was dependent on initial parameters)
641
*** Spring looked worse than the rest (surprisingly), but this may be because online calibration wasn't great
642
643 2 Richard Trotta
----
644 68 Richard Trotta
645 111 Richard Trotta
h3. Nov 5,2019
646 68 Richard Trotta
647
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500
648
649
* Timing update (Stephen)
650
** Reference times between Richard and Stephen are very similar and the GitHub is updated accordingly
651
** Richard is going to add the trigger time cuts once the fall runs are finished (by end of week)
652
** First pass of detector reference time parameter files finished
653 1 Richard Trotta
654 68 Richard Trotta
* Peter's hcana code (Richard and Stephen)
655
** 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
656
*** Richard has emailed Peter about the issue with no response yet (follow-up soon)
657
** 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.
658
659
* Calibrations were decided to be done once per shift
660
661
* Next meeting schedule...
662 127 Richard Trotta
** Small meetings Nov 12 and Nov 19 (at 3pm EST) so Richard and Stephen can iron out the timing and calibrations
663
** November 26 (at 3pm EST) will be a larger meeting. 
664 68 Richard Trotta
*** This is the rough deadline we made for finishing up calibrations. 
665
*** 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!!
666
667
----
668
669 111 Richard Trotta
h3. Oct 22,2019
670 62 Richard Trotta
671 64 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
672 62 Richard Trotta
673 65 Richard Trotta
* SHMS Reference Time Amplitude Cuts(Stephen)
674
** Extra peaks in HG from cross-talk and "ghost-bands" due to ADC screw up
675
*** cuts applied on SHMS ADC ref time amplitude (greater than zero) done before any further event selection and histogram filling
676
** This is a temporary fix to "ghost-bands" and cross talk
677
*** Although for HG there is still a small peak. The hodoscope is fine.
678
** The time window is easier to set now.
679
** DC has been fine (since it uses TDC)
680
*** DC calibrations should be good to complete, other detectors need more fixes (i.e. the remaining "ghost-band")
681
** Hodoscope still bad but this might be because of that "ghost-band", needs to be further investigated
682
683 1 Richard Trotta
* Peter's hcana fixes for reference time (Richard)
684 67 Richard Trotta
** Peter implemented changes to hcana
685
** Two major issues...
686 1 Richard Trotta
## Amplitude goes to null and integral is low or negative which causes a rate-dependent efficiency. 
687 67 Richard Trotta
*** Peter has used the average pulse value acquired over a large sample of runs for each detector. 
688 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)
689 67 Richard Trotta
*** Peter created a routine to find the best offset by means of matching TDC and ADC
690
** Richard has been checking for bugs in the code. 
691
*** It seems to be ready to implement, Richard emailed Peter for confirmation on the implementation in our group directory
692
693 1 Richard Trotta
* Calibration of HMS detectors when the timing is agreed upon by Stephen and Richard.
694 67 Richard Trotta
** Besides hodoscope which still has an issue with the script
695 65 Richard Trotta
** Stephen and Richard are having a meeting late next week to determine time window values
696 62 Richard Trotta
*** These will be relatively final, but on the wider side if adjustments need to be made in the future
697
698 1 Richard Trotta
-----
699 61 Richard Trotta
700 111 Richard Trotta
h3. Sep 24,2019
701 61 Richard Trotta
702
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
703 1 Richard Trotta
704 61 Richard Trotta
-----
705 1 Richard Trotta
706 111 Richard Trotta
h3. Sep 10,2019
707 59 Vijay Kumar
708
*Links to talks->* "Stephen":https://redmine.jlab.org/documents/69 "Ali":https://redmine.jlab.org/documents/72 "Richard":https://redmine.jlab.org/issues/500
709 1 Richard Trotta
710
-----
711 55 Stephen Kay
712 111 Richard Trotta
h3. August 26, 2019
713 55 Stephen Kay
714
*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
715 1 Richard Trotta
716 54 Richard Trotta
----
717
718 111 Richard Trotta
h3. June 21, 2019
719 54 Richard Trotta
720 1 Richard Trotta
*Links to talks->* "Hallc Talk Outline":https://redmine.jlab.org/documents/60 
721 54 Richard Trotta
722 42 Stephen Kay
----
723
724 111 Richard Trotta
h3. June 14, 2019
725 1 Richard Trotta
726 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
727 42 Stephen Kay
728
729 35 Stephen Kay
----
730 1 Richard Trotta
731 111 Richard Trotta
h3. June 4, 2019
732 36 Vijay Kumar
733 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
734 35 Stephen Kay
735 1 Richard Trotta
736 35 Stephen Kay
----
737 1 Richard Trotta
738 111 Richard Trotta
h3. May 21, 2019
739 1 Richard Trotta
740
*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
741 35 Stephen Kay
742
----
743 1 Richard Trotta
744 111 Richard Trotta
h3. May 14, 2019
745 1 Richard Trotta
746 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
747 1 Richard Trotta
748 35 Stephen Kay
----
749 1 Richard Trotta
750 111 Richard Trotta
h3. April 30, 2019
751 1 Richard Trotta
752
*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
753 35 Stephen Kay
754 1 Richard Trotta
----
755
756
h3. February 4, 2019
757
758
*Links to talks->* "Richard":https://redmine.jlab.org/documents/43 "Stephen":https://redmine.jlab.org/documents/44
759
760
----
761 113 Richard Trotta
762 112 Richard Trotta
h2. 2018 Meetings
763 141 Stephen Kay
764
----
765 111 Richard Trotta
766
h3. August 21, 2018
767
768 1 Richard Trotta
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
769 35 Stephen Kay
770 1 Richard Trotta
----
771 35 Stephen Kay
772 111 Richard Trotta
h3. August 8, 2018
773 35 Stephen Kay
774
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
775 1 Richard Trotta
776
----
777 35 Stephen Kay
778 111 Richard Trotta
h3. August 3, 2018
779 1 Richard Trotta
780 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383
781
*Links to talks->*
782 1 Richard Trotta
783 35 Stephen Kay
----
784 1 Richard Trotta
785 111 Richard Trotta
h3. July 11, 2018
786 1 Richard Trotta
787 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383 #384
788 1 Richard Trotta
789 35 Stephen Kay
*Action items:*
790 1 Richard Trotta
791 35 Stephen Kay
* Update run plan, e.g. add prescales (Garth)
792
* Check on details of: magnet cycling procedure, minimum angles, MCC fringe field steering, beam energy measurements, optics checks (Tanja)
793
* Identify additional run coordinators (Tanja)
794
* Encourage collaborators to take shifts, e.g. FIU (Pete)
795
* Draft email about shifts etc. to collaboration (Tanja)
796
* Develop diagnostic scripts and kaonLT specific (Richard, Ryan)
797
* Continue documentation development, e.g. checklist, shift taker instructions, HowTo or link to generic Hall C HowTo, task list, web page (Richard, Garth)
798 1 Richard Trotta
799 35 Stephen Kay
*Discussions:*
800
801
* 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
802
* HGC: waiting for re-installation
803
* Trigger checkout: main items to keep in mind: fADC thresholds, timing HMS/SHMS - leading arm, possible rate limitations
804 1 Richard Trotta
* Shifts
805
* Diagnostics scripts and documentation
806
* Personnel schedules
807
808
----
809
810 111 Richard Trotta
h3. June 28, 2018
811 1 Richard Trotta
812
*Links to talks->* "Richard":https://redmine.jlab.org/documents/34
813
814
*Action Items:*
815
816
* Develop and post shift schedule. Send out request. Find out who is KAONLT liaison (Tanja)
817
* Contact potential run coordinators. (Tanja)
818
* Aerogel tray exchange for start of experiment and coordination of future exchanges (Vladimir)
819
* Update runplan and prepare documents needed for shift crew, e.g. run sheets (Garth)
820
* Set up a web page to collect and link from Redmine - How-To documents, initial calibrations, etc. (Garth, Richard)
821
* 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)
822
* Develop trigger/detector checkout plan (Tanja, initial draft)
823
** Are all experts available at run start, experts needed: coincidence timing , Harp Scans, BCM calibrations, ...
824
* 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)
825
* Find out if all aerogel trays needed for experiment can be stored inside Hall C to avoid having to open truck ramp (Vladimir)
826
827
*Analysis Updates:*
828
829
* Ryan 
830
** resolving differences between his analysis and Richard's
831
832
* Richard
833
** 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
834
** 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.
835
836
----
837
838 111 Richard Trotta
h3. May 31, 2018
839 1 Richard Trotta
840 35 Stephen Kay
*Links to talks->* "Samip":https://redmine.jlab.org/documents/30
841 1 Richard Trotta
842 35 Stephen Kay
----
843 1 Richard Trotta
844 111 Richard Trotta
h3. May 17, 2018 
845 1 Richard Trotta
846 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
847 2 Richard Trotta
848 35 Stephen Kay
* Luminosity scans (Richard, Ryan)
849 111 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
850 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
851
** discussion about pre-scale factors
852 1 Richard Trotta
853 35 Stephen Kay
* Discussion about Richard's script extracting and printing information from report files and trees including histograms
854
** Add option for looking at yields with cuts on cointime, target window, and missing mass
855
** Add option to look at real peak vs. background level
856 1 Richard Trotta
857 35 Stephen Kay
* H(e,e'p) kinematics investigation for fall run (Samip)
858
** 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
859 1 Richard Trotta
860 35 Stephen Kay
* *Action Items*
861
** Luminosity scans at low rates from January (Richard)
862
** Luminosity scans from April with corrected efficiencies, e.d. DT (Ryan)
863
** H(e,e'p) and H(e,e') kinematics for upcoming Kaon LT run (Samip)
864
** Kaon LT detailed run plan (Garth, Pete, Tanja)
865
** Preparations, e.g. report files, diagnostic histograms and real time monitoring, shift worker instructions, optimization of trees (all)
866 1 Richard Trotta
867
----
868
869 111 Richard Trotta
h3. May 10, 2018
870 35 Stephen Kay
871 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
872 35 Stephen Kay
873
* Luminosity Scans January 2018 (Richard)
874
** Tracking-based analysis for Runs 1415-1423, .. for now focus on HMS, typical HMS S1X rates are <
875
** Cuts applied: PID for electrons (Cer, Cal), acceptance (delta)
876
** Efficiency calculation was investigated in detail and applied using scalers from trees
877
** Results for carbon (normalized to 30uA) show large variation - need to understand
878
** *Next steps:*
879
*** Double check calculation of computer lifetime, look for differences in TRIG and PRETRIG scalers
880
*** Check stability of pre-scale (Ryan saw changes within runs)
881
*** Check if detector calibrations for runs are implemented correctly
882
*** Analyze with Ryan's cuts
883 1 Richard Trotta
884 35 Stephen Kay
* Luminosity Scans April 2018 (Ryan)
885
** Confirms Richard's earlier finding that scaler-based analysis is not reliable and that it's best to analyze event-by-event
886
** Tracking-based analysis for runs 2073-2095
887
** Cuts applied: PID for electrons (TOF, Cal, Chi2), acceptance (delta and angles), BCM4a
888
** Included most recent detector calibrations in replay of these runs
889
** Efficiencies from report file mainly, may need to update tracking efficiency implementation
890
** Found that calculations of computer deadtime requires different set of scalers for runs from January to those from April 2018
891
** Results show carbon yields consistent with unity within error (0.5% error bars), and boiling for hydrogen and deuterium
892
** *Next steps:*
893 5 Richard Trotta
*** Check tracking efficiency
894 35 Stephen Kay
895
* *Global comments on Luminosity Scans (so far)*
896 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.
897 35 Stephen Kay
** Efficiencies in report files need to be updated, e.g. CPU deadtime (Richard)
898
** Check if BCM4a is the one closest to the target - get a map of the hall (Richard, Ryan)
899
** Uncertainties on current
900
** Detector calibrations
901 1 Richard Trotta
** HMS vs. SHMS
902 35 Stephen Kay
903
* eK+ coincidence time from SIDIS Spring 2018 run (Samip)
904
** Worked with Mark Jones on coincidence time calculation - now available in hcana (see Samip's 10 May 2018 email for more details)
905
** runs used in this analysis: 3423 with Q2=3.1 GeV2 and W=2.78 GeV
906
** Coincidence time spectrum shows peak separations >2 ns corresponding to different accelerator frequency
907
** Missing mass spectra: Kaon peak clearly visible, also see pions even after cuts
908
** Found that pions appear localized in phase space - seems to be due to end point in kinematic phase space
909 1 Richard Trotta
** *Next steps:*
910 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)
911 35 Stephen Kay
912
* Yield normalized ratios from SIDIS (Hem)
913
** Yield ratios of data to MC match well in shape, but normalization seems not quite right
914
** *Next steps:*
915 4 Richard Trotta
*** Check if efficiencies, currents, run time etc. are taken into account correctly
916
917
----
918 35 Stephen Kay
919 111 Richard Trotta
h3. April 26, 2018
920 4 Richard Trotta
921 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
922 4 Richard Trotta
923 35 Stephen Kay
* Discussion luminosity scan analysis (earlier scan) - Richard
924
** 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
925
** Notes on efficiencies in report file:
926
*** DT (EDTM) is not electronic deadtime. Instead use for now 50ns* trigger rate for HMS and 100ns* trigger rate for SHMS
927
*** Cherenkov efficiency seems low (check if that is due to PID, thresholds, pi/e, etc)
928
*** Tracking efficiency needs to be checked
929
*** 3/4 trigger efficiency seems ok
930
* Discussion luminosity scan analysis (later scan) - Ryan
931
** Fewer carbon runs than earlier scan
932
** Shown is a tracking-based analysis using data from the ROOT trees
933 111 Richard Trotta
** First results for carbon, LH3, and LD2, but efficiencies need to be checked
934 35 Stephen Kay
* SIDIS analysis - Hem
935
** Shown is a data/MC comparison for different kinematic settings. Agreement in shape is very good. Normalization has yet to be applied.
936
** Discussion about agreement in z and apparent offset - relation of this offset with spectrometer offset
937
* Analysis of exclusive events in SIDIS - Samip
938
** Shown is a look at the first kaon events in exclusive limit of SIDIS data
939
** Ongoing work on implementing coincidence time into tree
940
* Discussion of run plan, and in particular possible low Q2/low energy
941
** Assume that kaon low Q2=0.4 already included - have kinematics with specified beam energies, if needed
942
** 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
943
** Garth will put this together in a draft email
944
945 12 Richard Trotta
----
946
947 111 Richard Trotta
h3. March 29, 2018
948 12 Richard Trotta
949 35 Stephen Kay
*Links to talks->* "Richard, ":https://redmine.jlab.org/documents/16 "Samip":https://redmine.jlab.org/documents/27
950 13 Richard Trotta
951 35 Stephen Kay
* Details of adding points to fall run plan - will be ready sooner, likely in week of 4/1 (Garth, Samip, Tanja)
952
* Luminosity scans (Ryan, Andres, Richard, Pete)
953
* Macros, SIDIS analysis (Hem, Anashe)
954
* Elastic data (TBD)
955
956 14 Richard Trotta
----
957 18 Richard Trotta
958 111 Richard Trotta
h3. February 22, 2018
959 18 Richard Trotta
960 35 Stephen Kay
*Links to talks->* "Andres":https://redmine.jlab.org/documents/19
961 18 Richard Trotta
962 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.
963
* Brief description of Samip's work - working on coincidence timing decoding with JLab staff and re-optimization of kinematics
964
* Discussion of Richard's slides on run plan kinematics and preparations -
965
** 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
966
** 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
967
** for each setting will need 1-2 shifts for calibrations - need to negotiate with other experiments in run group
968
** kinematics plots W-Q2 show that still need to do some optimization
969
** run sheets: include raster size, update coincidence count labeling, and carbon target labeling
970
* Discussion of next meeting. Garth at JLab 8-16 March - might have meeting during that time.
971 26 Richard Trotta
972 35 Stephen Kay
* *Action Items:*
973
** Post slides/notes from this meeting and procedure to set up hcana in Redmine (Tanja)
974
** Update run sheet and kinematic optimization for W/Q2 (Garth)
975
** Circulate elastic calculations for kinematic settings (Samip)
976
** Continue investigation of elastic data and run plan kinematics (Andres/Richard)
977
** Test software installation instructions (Pete)
978
** 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) 
979 32 Stephen Kay
980
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