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Kaon LT Meetings » History » Version 221

Richard Trotta, 01/05/2022 11:25 AM

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h1. *Kaon LT Meetings*
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5 96 Stephen Kay
Kaon LT collaboration analysis meetings. Please add your talk to the meeting ahead of time. Add the newest meeting to the top of the list!
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7 95 Stephen Kay
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8 113 Richard Trotta
9 1 Richard Trotta
h2. 2021 Meetings
10 200 Richard Trotta
11 221 Richard Trotta
h3. January 5, 2022
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* Stephen
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** Stephen was updating GitHub but UTIL_BATCH has some permissions issues
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* Richard
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** Update to KLT task schedule
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** Meeting between Richard and Vijay to discuss task breakdown Friday, January 7th at 11 am EST
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** EDTM study 2 will done sometime this weekend
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h2. 2021 Meetings
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24 220 Richard Trotta
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).
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** Issues with the COIN are seen but may be a replay issue.
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Next meeting August X @ 4:30 ED
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34 217 Richard Trotta
h3. July 21, 2021
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36 218 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1250/KaonLTMeeting7_14_21.pdf
37 217 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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39 218 Richard Trotta
Next meeting August 4th @ 4:30 ED
40 217 Richard Trotta
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43 215 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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48 216 Richard Trotta
Next meeting May 26th @ 4:30 ED
49 215 Richard Trotta
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52 213 Richard Trotta
h3. April 28, 2021
53
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* Richard
55 214 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.
56 213 Richard Trotta
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Next meeting May 12th @ 4:30 EDT
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61 211 Richard Trotta
h3. April 14, 2021
62 212 Richard Trotta
63 211 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_4_14_21.pdf
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** 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). 
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** 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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71 203 Richard Trotta
h3. March 31, 2021
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73 206 Richard Trotta
* Richard
74 209 Richard Trotta
** Luminosity studies
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*** PionLT carbon runs
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**** Still having issues getting decent results. I think I am just missing a definition somewhere that I need to track down
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*** Uncertainties
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**** Easy to do, I just need to put it into my script
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** Explicit PS calculations
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*** I have gotten a rough script working for very simple runs (ie low rate, single spectrometer, calibration runs)
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*** I am trying to expand to lumi singles runs, things get a bit more complex so I am just working out the trigger correlations
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** Pass 2 runs
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*** DEF-files
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**** I checked out the DEF-files for our combination of the nested files
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**** There are a lot a files (~150!!!!) and may be hard to track so next week *we should make a flowchart together*
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**** Working on my list of branches for the next replay
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***** Mainly just working on my list of branches for the explicit PS calculations
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***** *Everyone should have a list of these branches by next mini-meeting (4/7/21)*
89 210 Stephen Kay
* Stephen
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** Updated DEF-File for the "full" replay
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*** Can't remove NData brances, Mark says they won't take up too many resources anyway
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*** Removed individual PMT info and raw info for many detectors, reduced file size by factor ~2
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** Updating DEF-files/scripts for calibrations as part of PionLT prep
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** Will focus on DEF-file/DEF-cut file updates over next week
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*** Will investigate HeeP replays over rest of this week.
96 207 Richard Trotta
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98 203 Richard Trotta
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Next meeting April 14th @ 4:30 EDT
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103 201 Stephen Kay
h3. March 24, 2021
104
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* KaonLT Mini Meeting focusing on Pass2 preparation
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* "Task summary from Richard":https://redmine.jlab.org/projects/kltexp/wiki/Replay_2_Tasks
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108 202 Stephen Kay
Next meeting March 31st @ 4:30 EDT
109 201 Stephen Kay
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112 200 Richard Trotta
h3. March 17, 2021
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* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_3_17_21.pdf
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** 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.
116 202 Stephen Kay
* Mini meeting March 24th @ 4:30 EDT
117 201 Stephen Kay
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Next meeting March 31st @ 4:30 EDT
119 200 Richard Trotta
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122 199 Richard Trotta
h3. March 3, 2021
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* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_3_3_21.pdf
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** 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). 
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** 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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h3. February 17, 2021
134 194 Richard Trotta
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* Richard
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** 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.
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138 198 Nathan Heinrich
* Nathan
139
** 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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145 196 Richard Trotta
h3. February 3, 2021
146 193 Richard Trotta
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* Richard
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** A table with the aerogel efficiency for kaons is being created. It will be expanded to other particles and detectors.
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Next meeting February 17th @ 4:30 EST
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154 196 Richard Trotta
h3. January 20, 2021
155 191 Richard Trotta
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* "Richard":https://redmine.jlab.org/attachments/download/1172/KaonLTMeeting_1_20_21.pdf
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** 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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160 191 Richard Trotta
Next meeting February 3rd @ 4:30 EST
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164 196 Richard Trotta
h3. January 6, 2021
165 190 Richard Trotta
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* "Richard":https://redmine.jlab.org/attachments/download/1153/KaonLTMeeting1_6_21.pdf
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** Analyzed most of the luminosity scans. There are a few issues I am investigating still which seem to be run related.
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* Vijay
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** 
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171 191 Richard Trotta
Next meeting January 20th @ 4:30 EST
172 186 Richard Trotta
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h2. 2020 Meetings
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h3. December 2, 2020
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* Carlos
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** 
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* 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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h3. November 18, 2020
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* Ali
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** 
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* "Carlos":https://redmine.jlab.org/attachments/download/1103/LiveTime_Study_cyero.pdf
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** 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.
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* "Richard":https://redmine.jlab.org/attachments/download/1101/KaonLTMeeting11_18_20.pdf
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** Scaler analysis matches Carlos' code now. Overall significant improvements were made through some cut adjustments and incorrect variable definitions.
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* Stephen
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** Updated the hallc_replay_lt with parameter files for all coin peaks.
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* Vijay
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** 
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Next meeting December 2nd @ 4:30 EST
207 180 Richard Trotta
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210 178 Richard Trotta
h3. November 4, 2020
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* Ali
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** 
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* "Richard":https://redmine.jlab.org/attachments/download/1092/KaonLTMeeting11_4_20.pdf
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** Scaler analysis is getting closer to an answer. An in-depth comparison of Carlos and Richard's analysis shows inconsistencies between the two.
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* 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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224 141 Stephen Kay
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226 170 Richard Trotta
h3. October 28, 2020
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* Ali
229 177 Richard Trotta
** Went over some of his tracking procedures for the report file implementation
230 172 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1091/KaonLTMeeting10_28_20.pdf
231 173 Richard Trotta
** Luminosity analysis continues. There are still some issues but things have improved a bit.
232 171 Stephen Kay
* "Stephen":https://redmine.jlab.org/attachments/download/1090/KaonLT_Meeting_28_10_20.pdf
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** Discussion of CT peak analysis, progress and outline of what's left to do with this
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* Vijay
235 176 Richard Trotta
** Dry run for Mark's hallc meeting tomorrow (10/29)
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237 177 Richard Trotta
Next meeting November 4th @ 4:30 EST
238 170 Richard Trotta
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241 164 Richard Trotta
h3. October 14, 2020
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243 168 Richard Trotta
* Ali
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** Working through the REPORT_FILES template to get everything working and outputting proper information.
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* "Richard":https://redmine.jlab.org/attachments/download/1085/KaonLTMeeting_10_14_20.pdf
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** Updates on lumi scans. There are many issues from Scalers to Tracking that need to be resolved.
247 167 Richard Trotta
* Stephen
248 164 Richard Trotta
** He has included a demo for using the python analysis script in the README.
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250 170 Richard Trotta
Next meeting October 28th @ 4:30 EST
251 164 Richard Trotta
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254 161 Richard Trotta
h3. September 23, 2020
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* "Richard":https://redmine.jlab.org/attachments/download/1078/KaonLTMeeting_9_23_20.pdf
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** 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. 
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* Stephen
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** 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.
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* Petr
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** Data fitting algorithm based on E.H. Bellamy paper. Extracts PMT spectra from ROOT file and makes a 1D projection histogram.
262 161 Richard Trotta
263 163 Richard Trotta
Next meeting October 14th @ 4:30 EST
264 161 Richard Trotta
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267 149 Richard Trotta
h3. September 9, 2020
268 156 Richard Trotta
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* Richard
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** Still working on run list, GUI checks
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* "Stephen":https://redmine.jlab.org/issues/567
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** New slim replay scripts and full replay scripts updated
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* Ali
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** Him and Stephen found an issue (already aware of) with zeros in the parameter files using Mark's hcana changes
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** Need to be vigilant of crashed replays because this is probably the issue
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* Vijay
277 156 Richard Trotta
** Nearly finished with HGcer calibrations
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279 161 Richard Trotta
Next meeting September 23rd @ 4:30 EST
280 156 Richard Trotta
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h3. August 26, 2020
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285 149 Richard Trotta
*Links to talks->* "Ali":https://redmine.jlab.org/issues/483 "Vijay":https://redmine.jlab.org/issues/479
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* Richard
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** 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.
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* Stephen
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** Updated on RF times. There were a few issues with some runs, but overall most are finished.
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* Ali
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** 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)
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* Vijay
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** Updated the SHMS HGCher analysis. The calibrations are coming along, but a little more work needs to be finished up.
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296 156 Richard Trotta
Next meeting September 9 @ 5 EST
297 150 Richard Trotta
298 149 Richard Trotta
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300 144 Richard Trotta
h3. July 29, 2020
301 147 Stephen Kay
302 148 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
303 146 Stephen Kay
304 155 Richard Trotta
* Stephen
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** Updates on scripts to set pedestal defaults and AdcTdc offsets after hcana change
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* Richard
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** Updated plan and schedule for the analysis going forward
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309 150 Richard Trotta
Next meeting August 26th @ 4:30 EST
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313 139 Richard Trotta
h3. July 8, 2020
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315 139 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
316 150 Richard Trotta
317 140 Richard Trotta
Next meeting July 29 @ 4:30 EST
318 139 Richard Trotta
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321 132 Richard Trotta
h3. June 24, 2020
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*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
324 137 Richard Trotta
Next meeting July 8th @ 4:30 EST
325 132 Richard Trotta
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h3. June 9, 2020
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*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
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332 131 Richard Trotta
Next meeting June 24th @ 4:30 EST
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336 125 Richard Trotta
h3. May 27, 2020
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*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
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340 127 Richard Trotta
Next meeting June 9th @ 4:30 EST
341 125 Richard Trotta
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344 118 Stephen Kay
h3. May 13, 2020
345 124 Richard Trotta
346 138 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
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348 127 Richard Trotta
Next meeting May 27th @ 4:30 EST
349 118 Stephen Kay
350 121 Richard Trotta
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h3. April 29, 2020
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*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
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Next meeting May 13th @ 4:30 EST
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359 106 Richard Trotta
360 111 Richard Trotta
h3. April 15, 2020
361 104 Richard Trotta
362 102 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/attachments/download/977/KaonLTMeeting_4_15_20.pdf
363 105 Richard Trotta
364 127 Richard Trotta
Next meeting April 29th @ 4:30 EST
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366 102 Richard Trotta
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367 95 Stephen Kay
368 111 Richard Trotta
h3. April 1, 2020
369 100 Stephen Kay
370 138 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
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372 127 Richard Trotta
Next meeting April 15th @  4:30 EST
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374 41 Stephen Kay
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375 93 Richard Trotta
376 111 Richard Trotta
h3. March 18, 2020
377 93 Richard Trotta
378
*Links to talks->* "Richard's EIC Temple Draft 2":https://redmine.jlab.org/attachments/download/942/DRAFT2_mesonSF_EIC_Temple.pdf
379 1 Richard Trotta
380 127 Richard Trotta
Next meeting April 1st @  4:30 EST
381 93 Richard Trotta
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383 91 Richard Trotta
384 111 Richard Trotta
h3. March 11, 2020
385 92 Richard Trotta
386 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
387 94 Richard Trotta
388 127 Richard Trotta
Next meeting March 18th @  4:30 EST
389 91 Richard Trotta
390
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391 88 Richard Trotta
392 111 Richard Trotta
h3. Feb 26, 2020
393 90 Richard Trotta
394
* Peter's changes to hcana should be coming soon. Richard will check with Mark when he is down there for an update.
395
* Need to incorporate the latest "BCM updates":https://hallcweb.jlab.org/doc-public/ShowDocument?docid=1034 from Dave Mack.
396 1 Richard Trotta
* Richard should look at the luminosity scalar analysis before and after the BCM changes once he gets his script working again.
397 88 Richard Trotta
**  He is checking with Mark about this while he is down in jlab. 
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399 127 Richard Trotta
Next meeting March 11th @  4:30 EST
400 86 Richard Trotta
401 1 Richard Trotta
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402 86 Richard Trotta
403 111 Richard Trotta
h3. Feb 10, 2020 
404 87 Richard Trotta
405 127 Richard Trotta
Next meeting Feb 26th @ 11 am EST
406 86 Richard Trotta
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408 1 Richard Trotta
409 111 Richard Trotta
h3. Jan 22, 2020
410 83 Richard Trotta
411
*Links to talks->* "Richard's Hall C Winter Talk Draft 1":https://redmine.jlab.org/attachments/download/937/KaonLTHallC_WinterTalk2020_Draft1.pdf
412 85 Richard Trotta
413 127 Richard Trotta
Next meeting Feb 10 @ 11 am EST
414 83 Richard Trotta
415 1 Richard Trotta
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416 83 Richard Trotta
417 111 Richard Trotta
h3. Jan 15,2020
418 81 Richard Trotta
419 82 Richard Trotta
*Links to talks->* "Richard's Hall C Winter Talk Outline":https://redmine.jlab.org/attachments/download/936/KaonLTHallC_WinterTalk2020.pdf
420 81 Richard Trotta
421 127 Richard Trotta
Next meeting Jan 22 @ 11 am EST
422 81 Richard Trotta
423
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424 78 Richard Trotta
425 111 Richard Trotta
h3. Jan 8,2020
426 78 Richard Trotta
427 1 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/76
428 79 Richard Trotta
429 1 Richard Trotta
* Richard
430
** PID efficiency script is coming together
431
*** Tighter cuts and cuts on timing, beta, etc. will be needed for cleaner electron cuts
432
*** 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.
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Next meeting will be January 15th at 4 pm EST 
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437 113 Richard Trotta
438 112 Richard Trotta
h2. 2019 Meetings
439 80 Richard Trotta
440 141 Stephen Kay
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442 111 Richard Trotta
h3. Dec 17,2019
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444 77 Richard Trotta
Reminder: Mark Jones' commissioning analysis meetings are bi-weekly and announced by Mark
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* Stephen
447
** Number of passes finished for HMS calorimeter
448
*** Still wiggles in all passes
449
** Finished his report on calibrations, "DC and Calorimeters":https://redmine.jlab.org/documents/74
450
** 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
451
*** CUA will be putting together a similar list
452 1 Richard Trotta
453 77 Richard Trotta
* Richard
454
** Fixed one error issue with SHMS calorimeter calibration code (discussed Dec 10th meeting), but still have one error
455
** PID efficiency script plots are complete, but still some questions he needs to work out before a final version
456
*** Eventually need to include tracking into PID efficiencies
457
** Pete brought up the question for a number of multi-hits we are getting
458
*** (Dead Time)+(Trigger efficiency)-EDTM
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460 127 Richard Trotta
Next meeting will be after the break; Wednesday, January 8th at 3 pm EST
461 77 Richard Trotta
462
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463 72 Richard Trotta
464 111 Richard Trotta
h3. Dec 10,2019
465 72 Richard Trotta
466 74 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/73
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* Garth and Stephen were in the most recent SIDIS meeting
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** Wit had lots of hcana changes but they seem to be critical to our work 
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*** Changes such as new detector classes
471 1 Richard Trotta
** Hopefully Wit will present these in the next commissioning meeting
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* Stephen improved wiggles but still prevalent
474 74 Richard Trotta
475
* Richard finished HGCer calibrations, he concluded that the online parameters are sufficient
476
** He also has been looking at SHMS calorimeter calibrations but has had issues running the scripts. Most likely a pathing issue.
477
** The "tasks":https://redmine.jlab.org/projects/kltexp/wiki/Analysis_Tasks page has been updated with a section for efficiencies. 
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*** A PID efficiency script is currently being developed and hopefully should have some plots for our next meeting.
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* Next meeting will be December 17th at 3 pm EST.
481 74 Richard Trotta
482 75 Richard Trotta
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483 74 Richard Trotta
484 111 Richard Trotta
h3. Nov 26,2019
485 71 Richard Trotta
486
*Links to talks->* "Richard":https://redmine.jlab.org/issues/480
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* Stephen
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** DC SHMS, small-angle has poor performance
490
*** Tighter cuts or PID (currently only looks for electrons)
491
** Vardan said calorimeter wiggles are an ongoing issue with no current solution
492
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* Richard
494 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.
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*** Richard will pick up looking at the HGCer calibrations from Vijay's scripts. 
496
*** Richard will also be looking at the SHMS calorimeter and with the suggestion of getting some negatively polarized SHMS runs from Hem.
497
** The HMS Cherenkov is finished with the conclusion that the calibrations from the online runs are good
498
** We can begin looking forward towards efficiencies. 
499
*** Garth suggested that looking at PID may be an advantageous first steps. Precise definitions of these PIDs will need to be logged.
500
*** Clear notes on efficiencies steps will be needed. They will need to be redefined multiple times in multiple ways. 
501
502
* Hem
503
** Has been looking at the calorimeter as well. 
504 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.  
505
506
----
507
508 111 Richard Trotta
h3. Nov 19,2019
509 1 Richard Trotta
510 70 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
511
512
* Richard
513
** Finished up TDC cut paper going through the procedure (found "here":https://redmine.jlab.org/issues/500)
514
** Needed to add Carlos pre-trigger designs to an appendix for the paper which clarifies the introduction section
515
516
* Stephen
517
** Issues with DC calibration for only a few runs during each run period
518
** "wiggles" in HMS calorimeter calibrations for some runs
519
*** few runs where HMS cal totally failed (which was dependent on initial parameters)
520
*** Spring looked worse than the rest (surprisingly), but this may be because online calibration wasn't great
521
522 2 Richard Trotta
----
523 68 Richard Trotta
524 111 Richard Trotta
h3. Nov 5,2019
525 68 Richard Trotta
526
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500
527
528
* Timing update (Stephen)
529
** Reference times between Richard and Stephen are very similar and the GitHub is updated accordingly
530
** Richard is going to add the trigger time cuts once the fall runs are finished (by end of week)
531
** First pass of detector reference time parameter files finished
532 1 Richard Trotta
533 68 Richard Trotta
* Peter's hcana code (Richard and Stephen)
534
** 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
535
*** Richard has emailed Peter about the issue with no response yet (follow-up soon)
536
** 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.
537
538
* Calibrations were decided to be done once per shift
539
540
* Next meeting schedule...
541 127 Richard Trotta
** Small meetings Nov 12 and Nov 19 (at 3pm EST) so Richard and Stephen can iron out the timing and calibrations
542
** November 26 (at 3pm EST) will be a larger meeting. 
543 68 Richard Trotta
*** This is the rough deadline we made for finishing up calibrations. 
544
*** 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!!
545
546
----
547
548 111 Richard Trotta
h3. Oct 22,2019
549 62 Richard Trotta
550 64 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
551 62 Richard Trotta
552 65 Richard Trotta
* SHMS Reference Time Amplitude Cuts(Stephen)
553
** Extra peaks in HG from cross-talk and "ghost-bands" due to ADC screw up
554
*** cuts applied on SHMS ADC ref time amplitude (greater than zero) done before any further event selection and histogram filling
555
** This is a temporary fix to "ghost-bands" and cross talk
556
*** Although for HG there is still a small peak. The hodoscope is fine.
557
** The time window is easier to set now.
558
** DC has been fine (since it uses TDC)
559
*** DC calibrations should be good to complete, other detectors need more fixes (i.e. the remaining "ghost-band")
560
** Hodoscope still bad but this might be because of that "ghost-band", needs to be further investigated
561
562 1 Richard Trotta
* Peter's hcana fixes for reference time (Richard)
563 67 Richard Trotta
** Peter implemented changes to hcana
564
** Two major issues...
565 1 Richard Trotta
## Amplitude goes to null and integral is low or negative which causes a rate-dependent efficiency. 
566 67 Richard Trotta
*** Peter has used the average pulse value acquired over a large sample of runs for each detector. 
567 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)
568 67 Richard Trotta
*** Peter created a routine to find the best offset by means of matching TDC and ADC
569
** Richard has been checking for bugs in the code. 
570
*** It seems to be ready to implement, Richard emailed Peter for confirmation on the implementation in our group directory
571
572 1 Richard Trotta
* Calibration of HMS detectors when the timing is agreed upon by Stephen and Richard.
573 67 Richard Trotta
** Besides hodoscope which still has an issue with the script
574 65 Richard Trotta
** Stephen and Richard are having a meeting late next week to determine time window values
575 62 Richard Trotta
*** These will be relatively final, but on the wider side if adjustments need to be made in the future
576
577 1 Richard Trotta
-----
578 61 Richard Trotta
579 111 Richard Trotta
h3. Sep 24,2019
580 61 Richard Trotta
581
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
582 1 Richard Trotta
583 61 Richard Trotta
-----
584 1 Richard Trotta
585 111 Richard Trotta
h3. Sep 10,2019
586 59 Vijay Kumar
587
*Links to talks->* "Stephen":https://redmine.jlab.org/documents/69 "Ali":https://redmine.jlab.org/documents/72 "Richard":https://redmine.jlab.org/issues/500
588 1 Richard Trotta
589
-----
590 55 Stephen Kay
591 111 Richard Trotta
h3. August 26, 2019
592 55 Stephen Kay
593
*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
594 1 Richard Trotta
595 54 Richard Trotta
----
596
597 111 Richard Trotta
h3. June 21, 2019
598 54 Richard Trotta
599 1 Richard Trotta
*Links to talks->* "Hallc Talk Outline":https://redmine.jlab.org/documents/60 
600 54 Richard Trotta
601 42 Stephen Kay
----
602
603 111 Richard Trotta
h3. June 14, 2019
604 1 Richard Trotta
605 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
606 42 Stephen Kay
607
608 35 Stephen Kay
----
609 1 Richard Trotta
610 111 Richard Trotta
h3. June 4, 2019
611 36 Vijay Kumar
612 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
613 35 Stephen Kay
614 1 Richard Trotta
615 35 Stephen Kay
----
616 1 Richard Trotta
617 111 Richard Trotta
h3. May 21, 2019
618 1 Richard Trotta
619
*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
620 35 Stephen Kay
621
----
622 1 Richard Trotta
623 111 Richard Trotta
h3. May 14, 2019
624 1 Richard Trotta
625 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
626 1 Richard Trotta
627 35 Stephen Kay
----
628 1 Richard Trotta
629 111 Richard Trotta
h3. April 30, 2019
630 1 Richard Trotta
631
*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
632 35 Stephen Kay
633 1 Richard Trotta
----
634
635
h3. February 4, 2019
636
637
*Links to talks->* "Richard":https://redmine.jlab.org/documents/43 "Stephen":https://redmine.jlab.org/documents/44
638
639
----
640 113 Richard Trotta
641 112 Richard Trotta
h2. 2018 Meetings
642 141 Stephen Kay
643
----
644 111 Richard Trotta
645
h3. August 21, 2018
646
647 1 Richard Trotta
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
648 35 Stephen Kay
649 1 Richard Trotta
----
650 35 Stephen Kay
651 111 Richard Trotta
h3. August 8, 2018
652 35 Stephen Kay
653
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
654 1 Richard Trotta
655
----
656 35 Stephen Kay
657 111 Richard Trotta
h3. August 3, 2018
658 1 Richard Trotta
659 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383
660
*Links to talks->*
661 1 Richard Trotta
662 35 Stephen Kay
----
663 1 Richard Trotta
664 111 Richard Trotta
h3. July 11, 2018
665 1 Richard Trotta
666 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383 #384
667 1 Richard Trotta
668 35 Stephen Kay
*Action items:*
669 1 Richard Trotta
670 35 Stephen Kay
* Update run plan, e.g. add prescales (Garth)
671
* Check on details of: magnet cycling procedure, minimum angles, MCC fringe field steering, beam energy measurements, optics checks (Tanja)
672
* Identify additional run coordinators (Tanja)
673
* Encourage collaborators to take shifts, e.g. FIU (Pete)
674
* Draft email about shifts etc. to collaboration (Tanja)
675
* Develop diagnostic scripts and kaonLT specific (Richard, Ryan)
676
* Continue documentation development, e.g. checklist, shift taker instructions, HowTo or link to generic Hall C HowTo, task list, web page (Richard, Garth)
677 1 Richard Trotta
678 35 Stephen Kay
*Discussions:*
679
680
* 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
681
* HGC: waiting for re-installation
682
* Trigger checkout: main items to keep in mind: fADC thresholds, timing HMS/SHMS - leading arm, possible rate limitations
683 1 Richard Trotta
* Shifts
684
* Diagnostics scripts and documentation
685
* Personnel schedules
686
687
----
688
689 111 Richard Trotta
h3. June 28, 2018
690 1 Richard Trotta
691
*Links to talks->* "Richard":https://redmine.jlab.org/documents/34
692
693
*Action Items:*
694
695
* Develop and post shift schedule. Send out request. Find out who is KAONLT liaison (Tanja)
696
* Contact potential run coordinators. (Tanja)
697
* Aerogel tray exchange for start of experiment and coordination of future exchanges (Vladimir)
698
* Update runplan and prepare documents needed for shift crew, e.g. run sheets (Garth)
699
* Set up a web page to collect and link from Redmine - How-To documents, initial calibrations, etc. (Garth, Richard)
700
* 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)
701
* Develop trigger/detector checkout plan (Tanja, initial draft)
702
** Are all experts available at run start, experts needed: coincidence timing , Harp Scans, BCM calibrations, ...
703
* 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)
704
* Find out if all aerogel trays needed for experiment can be stored inside Hall C to avoid having to open truck ramp (Vladimir)
705
706
*Analysis Updates:*
707
708
* Ryan 
709
** resolving differences between his analysis and Richard's
710
711
* Richard
712
** 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
713
** 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.
714
715
----
716
717 111 Richard Trotta
h3. May 31, 2018
718 1 Richard Trotta
719 35 Stephen Kay
*Links to talks->* "Samip":https://redmine.jlab.org/documents/30
720 1 Richard Trotta
721 35 Stephen Kay
----
722 1 Richard Trotta
723 111 Richard Trotta
h3. May 17, 2018 
724 1 Richard Trotta
725 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
726 2 Richard Trotta
727 35 Stephen Kay
* Luminosity scans (Richard, Ryan)
728 111 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
729 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
730
** discussion about pre-scale factors
731 1 Richard Trotta
732 35 Stephen Kay
* Discussion about Richard's script extracting and printing information from report files and trees including histograms
733
** Add option for looking at yields with cuts on cointime, target window, and missing mass
734
** Add option to look at real peak vs. background level
735 1 Richard Trotta
736 35 Stephen Kay
* H(e,e'p) kinematics investigation for fall run (Samip)
737
** 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
738 1 Richard Trotta
739 35 Stephen Kay
* *Action Items*
740
** Luminosity scans at low rates from January (Richard)
741
** Luminosity scans from April with corrected efficiencies, e.d. DT (Ryan)
742
** H(e,e'p) and H(e,e') kinematics for upcoming Kaon LT run (Samip)
743
** Kaon LT detailed run plan (Garth, Pete, Tanja)
744
** Preparations, e.g. report files, diagnostic histograms and real time monitoring, shift worker instructions, optimization of trees (all)
745 1 Richard Trotta
746
----
747
748 111 Richard Trotta
h3. May 10, 2018
749 35 Stephen Kay
750 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
751 35 Stephen Kay
752
* Luminosity Scans January 2018 (Richard)
753
** Tracking-based analysis for Runs 1415-1423, .. for now focus on HMS, typical HMS S1X rates are <
754
** Cuts applied: PID for electrons (Cer, Cal), acceptance (delta)
755
** Efficiency calculation was investigated in detail and applied using scalers from trees
756
** Results for carbon (normalized to 30uA) show large variation - need to understand
757
** *Next steps:*
758
*** Double check calculation of computer lifetime, look for differences in TRIG and PRETRIG scalers
759
*** Check stability of pre-scale (Ryan saw changes within runs)
760
*** Check if detector calibrations for runs are implemented correctly
761
*** Analyze with Ryan's cuts
762 1 Richard Trotta
763 35 Stephen Kay
* Luminosity Scans April 2018 (Ryan)
764
** Confirms Richard's earlier finding that scaler-based analysis is not reliable and that it's best to analyze event-by-event
765
** Tracking-based analysis for runs 2073-2095
766
** Cuts applied: PID for electrons (TOF, Cal, Chi2), acceptance (delta and angles), BCM4a
767
** Included most recent detector calibrations in replay of these runs
768
** Efficiencies from report file mainly, may need to update tracking efficiency implementation
769
** Found that calculations of computer deadtime requires different set of scalers for runs from January to those from April 2018
770
** Results show carbon yields consistent with unity within error (0.5% error bars), and boiling for hydrogen and deuterium
771
** *Next steps:*
772 5 Richard Trotta
*** Check tracking efficiency
773 35 Stephen Kay
774
* *Global comments on Luminosity Scans (so far)*
775 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.
776 35 Stephen Kay
** Efficiencies in report files need to be updated, e.g. CPU deadtime (Richard)
777
** Check if BCM4a is the one closest to the target - get a map of the hall (Richard, Ryan)
778
** Uncertainties on current
779
** Detector calibrations
780 1 Richard Trotta
** HMS vs. SHMS
781 35 Stephen Kay
782
* eK+ coincidence time from SIDIS Spring 2018 run (Samip)
783
** Worked with Mark Jones on coincidence time calculation - now available in hcana (see Samip's 10 May 2018 email for more details)
784
** runs used in this analysis: 3423 with Q2=3.1 GeV2 and W=2.78 GeV
785
** Coincidence time spectrum shows peak separations >2 ns corresponding to different accelerator frequency
786
** Missing mass spectra: Kaon peak clearly visible, also see pions even after cuts
787
** Found that pions appear localized in phase space - seems to be due to end point in kinematic phase space
788 1 Richard Trotta
** *Next steps:*
789 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)
790 35 Stephen Kay
791
* Yield normalized ratios from SIDIS (Hem)
792
** Yield ratios of data to MC match well in shape, but normalization seems not quite right
793
** *Next steps:*
794 4 Richard Trotta
*** Check if efficiencies, currents, run time etc. are taken into account correctly
795
796
----
797 35 Stephen Kay
798 111 Richard Trotta
h3. April 26, 2018
799 4 Richard Trotta
800 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
801 4 Richard Trotta
802 35 Stephen Kay
* Discussion luminosity scan analysis (earlier scan) - Richard
803
** 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
804
** Notes on efficiencies in report file:
805
*** DT (EDTM) is not electronic deadtime. Instead use for now 50ns* trigger rate for HMS and 100ns* trigger rate for SHMS
806
*** Cherenkov efficiency seems low (check if that is due to PID, thresholds, pi/e, etc)
807
*** Tracking efficiency needs to be checked
808
*** 3/4 trigger efficiency seems ok
809
* Discussion luminosity scan analysis (later scan) - Ryan
810
** Fewer carbon runs than earlier scan
811
** Shown is a tracking-based analysis using data from the ROOT trees
812 111 Richard Trotta
** First results for carbon, LH3, and LD2, but efficiencies need to be checked
813 35 Stephen Kay
* SIDIS analysis - Hem
814
** Shown is a data/MC comparison for different kinematic settings. Agreement in shape is very good. Normalization has yet to be applied.
815
** Discussion about agreement in z and apparent offset - relation of this offset with spectrometer offset
816
* Analysis of exclusive events in SIDIS - Samip
817
** Shown is a look at the first kaon events in exclusive limit of SIDIS data
818
** Ongoing work on implementing coincidence time into tree
819
* Discussion of run plan, and in particular possible low Q2/low energy
820
** Assume that kaon low Q2=0.4 already included - have kinematics with specified beam energies, if needed
821
** 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
822
** Garth will put this together in a draft email
823
824 12 Richard Trotta
----
825
826 111 Richard Trotta
h3. March 29, 2018
827 12 Richard Trotta
828 35 Stephen Kay
*Links to talks->* "Richard, ":https://redmine.jlab.org/documents/16 "Samip":https://redmine.jlab.org/documents/27
829 13 Richard Trotta
830 35 Stephen Kay
* Details of adding points to fall run plan - will be ready sooner, likely in week of 4/1 (Garth, Samip, Tanja)
831
* Luminosity scans (Ryan, Andres, Richard, Pete)
832
* Macros, SIDIS analysis (Hem, Anashe)
833
* Elastic data (TBD)
834
835 14 Richard Trotta
----
836 18 Richard Trotta
837 111 Richard Trotta
h3. February 22, 2018
838 18 Richard Trotta
839 35 Stephen Kay
*Links to talks->* "Andres":https://redmine.jlab.org/documents/19
840 18 Richard Trotta
841 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.
842
* Brief description of Samip's work - working on coincidence timing decoding with JLab staff and re-optimization of kinematics
843
* Discussion of Richard's slides on run plan kinematics and preparations -
844
** 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
845
** 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
846
** for each setting will need 1-2 shifts for calibrations - need to negotiate with other experiments in run group
847
** kinematics plots W-Q2 show that still need to do some optimization
848
** run sheets: include raster size, update coincidence count labeling, and carbon target labeling
849
* Discussion of next meeting. Garth at JLab 8-16 March - might have meeting during that time.
850 26 Richard Trotta
851 35 Stephen Kay
* *Action Items:*
852
** Post slides/notes from this meeting and procedure to set up hcana in Redmine (Tanja)
853
** Update run sheet and kinematic optimization for W/Q2 (Garth)
854
** Circulate elastic calculations for kinematic settings (Samip)
855
** Continue investigation of elastic data and run plan kinematics (Andres/Richard)
856
** Test software installation instructions (Pete)
857
** 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) 
858 32 Stephen Kay
859
----