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Kaon LT Meetings » History » Version 216

Richard Trotta, 05/12/2021 04:48 PM

1 116 Richard Trotta
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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
11 215 Richard Trotta
h3. May 12, 2021
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13
* Richard
14
** 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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16 216 Richard Trotta
Next meeting May 26th @ 4:30 ED
17 215 Richard Trotta
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20 213 Richard Trotta
h3. April 28, 2021
21
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* Richard
23 214 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.
24 213 Richard Trotta
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Next meeting May 12th @ 4:30 EDT
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29 211 Richard Trotta
h3. April 14, 2021
30 212 Richard Trotta
31 211 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). 
33
** 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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39 203 Richard Trotta
h3. March 31, 2021
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41 206 Richard Trotta
* Richard
42 209 Richard Trotta
** Luminosity studies
43
*** PionLT carbon runs
44
**** 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
46
**** Easy to do, I just need to put it into my script
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** Explicit PS calculations
48
*** I have gotten a rough script working for very simple runs (ie low rate, single spectrometer, calibration runs)
49
*** 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
52
**** 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)*
57 210 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
60
*** 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.
64 207 Richard Trotta
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66 203 Richard Trotta
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Next meeting April 14th @ 4:30 EDT
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71 201 Stephen Kay
h3. March 24, 2021
72
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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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76 202 Stephen Kay
Next meeting March 31st @ 4:30 EDT
77 201 Stephen Kay
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80 200 Richard Trotta
h3. March 17, 2021
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* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_3_17_21.pdf
83 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.
84 202 Stephen Kay
* Mini meeting March 24th @ 4:30 EDT
85 201 Stephen Kay
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Next meeting March 31st @ 4:30 EDT
87 200 Richard Trotta
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89 194 Richard Trotta
90 199 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). 
94
** 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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101 196 Richard Trotta
h3. February 17, 2021
102 194 Richard Trotta
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* Richard
104
** 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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106 198 Nathan Heinrich
* Nathan
107
** Presented an update on the Hodoscope Calibrations: https://redmine.jlab.org/attachments/download/1196/HodoscopeUpdate_2021Feb17.pdf
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109 194 Richard Trotta
Next meeting March 3rd @ 4:30 EST
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113 196 Richard Trotta
h3. February 3, 2021
114 193 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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122 196 Richard Trotta
h3. January 20, 2021
123 191 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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127 1 Richard Trotta
128 191 Richard Trotta
Next meeting February 3rd @ 4:30 EST
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132 196 Richard Trotta
h3. January 6, 2021
133 190 Richard Trotta
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* "Richard":https://redmine.jlab.org/attachments/download/1153/KaonLTMeeting1_6_21.pdf
135 186 Richard Trotta
** 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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139 191 Richard Trotta
Next meeting January 20th @ 4:30 EST
140 186 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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161 180 Richard Trotta
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.
167 180 Richard Trotta
* "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
170 182 Richard Trotta
** Updated the hallc_replay_lt with parameter files for all coin peaks.
171 180 Richard Trotta
* Vijay
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** 
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174 184 Richard Trotta
Next meeting December 2nd @ 4:30 EST
175 180 Richard Trotta
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178 178 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.
184 178 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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192 141 Stephen Kay
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194 170 Richard Trotta
h3. October 28, 2020
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* Ali
197 177 Richard Trotta
** Went over some of his tracking procedures for the report file implementation
198 172 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1091/KaonLTMeeting10_28_20.pdf
199 173 Richard Trotta
** Luminosity analysis continues. There are still some issues but things have improved a bit.
200 171 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
203 176 Richard Trotta
** Dry run for Mark's hallc meeting tomorrow (10/29)
204 170 Richard Trotta
205 177 Richard Trotta
Next meeting November 4th @ 4:30 EST
206 170 Richard Trotta
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209 164 Richard Trotta
h3. October 14, 2020
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211 168 Richard Trotta
* Ali
212 164 Richard Trotta
** 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.
215 167 Richard Trotta
* Stephen
216 164 Richard Trotta
** He has included a demo for using the python analysis script in the README.
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218 170 Richard Trotta
Next meeting October 28th @ 4:30 EST
219 164 Richard Trotta
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222 161 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
227 162 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.
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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.
230 161 Richard Trotta
231 163 Richard Trotta
Next meeting October 14th @ 4:30 EST
232 161 Richard Trotta
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235 149 Richard Trotta
h3. September 9, 2020
236 156 Richard Trotta
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* Richard
238 157 Richard Trotta
** Still working on run list, GUI checks
239 156 Richard Trotta
* "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
244 158 Richard Trotta
* Vijay
245 156 Richard Trotta
** Nearly finished with HGcer calibrations
246 1 Richard Trotta
247 161 Richard Trotta
Next meeting September 23rd @ 4:30 EST
248 156 Richard Trotta
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h3. August 26, 2020
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253 149 Richard Trotta
*Links to talks->* "Ali":https://redmine.jlab.org/issues/483 "Vijay":https://redmine.jlab.org/issues/479
254 154 Richard Trotta
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* Richard
256
** 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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264 156 Richard Trotta
Next meeting September 9 @ 5 EST
265 150 Richard Trotta
266 149 Richard Trotta
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268 144 Richard Trotta
h3. July 29, 2020
269 147 Stephen Kay
270 148 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
271 146 Stephen Kay
272 155 Richard Trotta
* Stephen
273
** 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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277 150 Richard Trotta
Next meeting August 26th @ 4:30 EST
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279 144 Richard Trotta
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281 139 Richard Trotta
h3. July 8, 2020
282 1 Richard Trotta
283 139 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
284 150 Richard Trotta
285 140 Richard Trotta
Next meeting July 29 @ 4:30 EST
286 139 Richard Trotta
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289 132 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
292 137 Richard Trotta
Next meeting July 8th @ 4:30 EST
293 132 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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300 131 Richard Trotta
Next meeting June 24th @ 4:30 EST
301 129 Richard Trotta
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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
307 128 Richard Trotta
308 127 Richard Trotta
Next meeting June 9th @ 4:30 EST
309 125 Richard Trotta
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312 118 Stephen Kay
h3. May 13, 2020
313 124 Richard Trotta
314 138 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
315 1 Richard Trotta
316 127 Richard Trotta
Next meeting May 27th @ 4:30 EST
317 118 Stephen Kay
318 121 Richard Trotta
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h3. April 29, 2020
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322 138 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
323 106 Richard Trotta
324 127 Richard Trotta
Next meeting May 13th @ 4:30 EST
325 106 Richard Trotta
326 1 Richard Trotta
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327 106 Richard Trotta
328 111 Richard Trotta
h3. April 15, 2020
329 104 Richard Trotta
330 102 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/attachments/download/977/KaonLTMeeting_4_15_20.pdf
331 105 Richard Trotta
332 127 Richard Trotta
Next meeting April 29th @ 4:30 EST
333 1 Richard Trotta
334 102 Richard Trotta
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335 95 Stephen Kay
336 111 Richard Trotta
h3. April 1, 2020
337 100 Stephen Kay
338 138 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
339 101 Richard Trotta
340 127 Richard Trotta
Next meeting April 15th @  4:30 EST
341 101 Richard Trotta
342 41 Stephen Kay
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343 93 Richard Trotta
344 111 Richard Trotta
h3. March 18, 2020
345 93 Richard Trotta
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*Links to talks->* "Richard's EIC Temple Draft 2":https://redmine.jlab.org/attachments/download/942/DRAFT2_mesonSF_EIC_Temple.pdf
347 1 Richard Trotta
348 127 Richard Trotta
Next meeting April 1st @  4:30 EST
349 93 Richard Trotta
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351 91 Richard Trotta
352 111 Richard Trotta
h3. March 11, 2020
353 92 Richard Trotta
354 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
355 94 Richard Trotta
356 127 Richard Trotta
Next meeting March 18th @  4:30 EST
357 91 Richard Trotta
358
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359 88 Richard Trotta
360 111 Richard Trotta
h3. Feb 26, 2020
361 90 Richard Trotta
362
* Peter's changes to hcana should be coming soon. Richard will check with Mark when he is down there for an update.
363
* Need to incorporate the latest "BCM updates":https://hallcweb.jlab.org/doc-public/ShowDocument?docid=1034 from Dave Mack.
364 1 Richard Trotta
* Richard should look at the luminosity scalar analysis before and after the BCM changes once he gets his script working again.
365 88 Richard Trotta
**  He is checking with Mark about this while he is down in jlab. 
366 1 Richard Trotta
367 127 Richard Trotta
Next meeting March 11th @  4:30 EST
368 86 Richard Trotta
369 1 Richard Trotta
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370 86 Richard Trotta
371 111 Richard Trotta
h3. Feb 10, 2020 
372 87 Richard Trotta
373 127 Richard Trotta
Next meeting Feb 26th @ 11 am EST
374 86 Richard Trotta
375
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376 1 Richard Trotta
377 111 Richard Trotta
h3. Jan 22, 2020
378 83 Richard Trotta
379
*Links to talks->* "Richard's Hall C Winter Talk Draft 1":https://redmine.jlab.org/attachments/download/937/KaonLTHallC_WinterTalk2020_Draft1.pdf
380 85 Richard Trotta
381 127 Richard Trotta
Next meeting Feb 10 @ 11 am EST
382 83 Richard Trotta
383 1 Richard Trotta
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384 83 Richard Trotta
385 111 Richard Trotta
h3. Jan 15,2020
386 81 Richard Trotta
387 82 Richard Trotta
*Links to talks->* "Richard's Hall C Winter Talk Outline":https://redmine.jlab.org/attachments/download/936/KaonLTHallC_WinterTalk2020.pdf
388 81 Richard Trotta
389 127 Richard Trotta
Next meeting Jan 22 @ 11 am EST
390 81 Richard Trotta
391
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392 78 Richard Trotta
393 111 Richard Trotta
h3. Jan 8,2020
394 78 Richard Trotta
395 1 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/76
396 79 Richard Trotta
397 1 Richard Trotta
* Richard
398
** PID efficiency script is coming together
399
*** Tighter cuts and cuts on timing, beta, etc. will be needed for cleaner electron cuts
400
*** 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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404 80 Richard Trotta
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405 113 Richard Trotta
406 112 Richard Trotta
h2. 2019 Meetings
407 80 Richard Trotta
408 141 Stephen Kay
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410 111 Richard Trotta
h3. Dec 17,2019
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412 77 Richard Trotta
Reminder: Mark Jones' commissioning analysis meetings are bi-weekly and announced by Mark
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* Stephen
415
** Number of passes finished for HMS calorimeter
416
*** Still wiggles in all passes
417
** Finished his report on calibrations, "DC and Calorimeters":https://redmine.jlab.org/documents/74
418
** 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
419
*** CUA will be putting together a similar list
420 1 Richard Trotta
421 77 Richard Trotta
* Richard
422
** Fixed one error issue with SHMS calorimeter calibration code (discussed Dec 10th meeting), but still have one error
423
** PID efficiency script plots are complete, but still some questions he needs to work out before a final version
424
*** Eventually need to include tracking into PID efficiencies
425
** Pete brought up the question for a number of multi-hits we are getting
426
*** (Dead Time)+(Trigger efficiency)-EDTM
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428 127 Richard Trotta
Next meeting will be after the break; Wednesday, January 8th at 3 pm EST
429 77 Richard Trotta
430
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431 72 Richard Trotta
432 111 Richard Trotta
h3. Dec 10,2019
433 72 Richard Trotta
434 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
437
** Wit had lots of hcana changes but they seem to be critical to our work 
438
*** Changes such as new detector classes
439 1 Richard Trotta
** Hopefully Wit will present these in the next commissioning meeting
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441 77 Richard Trotta
* Stephen improved wiggles but still prevalent
442 74 Richard Trotta
443
* Richard finished HGCer calibrations, he concluded that the online parameters are sufficient
444
** He also has been looking at SHMS calorimeter calibrations but has had issues running the scripts. Most likely a pathing issue.
445
** The "tasks":https://redmine.jlab.org/projects/kltexp/wiki/Analysis_Tasks page has been updated with a section for efficiencies. 
446
*** A PID efficiency script is currently being developed and hopefully should have some plots for our next meeting.
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448 127 Richard Trotta
* Next meeting will be December 17th at 3 pm EST.
449 74 Richard Trotta
450 75 Richard Trotta
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451 74 Richard Trotta
452 111 Richard Trotta
h3. Nov 26,2019
453 71 Richard Trotta
454
*Links to talks->* "Richard":https://redmine.jlab.org/issues/480
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* Stephen
457
** DC SHMS, small-angle has poor performance
458
*** Tighter cuts or PID (currently only looks for electrons)
459
** Vardan said calorimeter wiggles are an ongoing issue with no current solution
460
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* Richard
462 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.
463 71 Richard Trotta
*** Richard will pick up looking at the HGCer calibrations from Vijay's scripts. 
464
*** Richard will also be looking at the SHMS calorimeter and with the suggestion of getting some negatively polarized SHMS runs from Hem.
465
** The HMS Cherenkov is finished with the conclusion that the calibrations from the online runs are good
466
** We can begin looking forward towards efficiencies. 
467
*** Garth suggested that looking at PID may be an advantageous first steps. Precise definitions of these PIDs will need to be logged.
468
*** Clear notes on efficiencies steps will be needed. They will need to be redefined multiple times in multiple ways. 
469
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* Hem
471
** Has been looking at the calorimeter as well. 
472 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.  
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h3. Nov 19,2019
477 1 Richard Trotta
478 70 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
479
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* Richard
481
** Finished up TDC cut paper going through the procedure (found "here":https://redmine.jlab.org/issues/500)
482
** Needed to add Carlos pre-trigger designs to an appendix for the paper which clarifies the introduction section
483
484
* Stephen
485
** Issues with DC calibration for only a few runs during each run period
486
** "wiggles" in HMS calorimeter calibrations for some runs
487
*** few runs where HMS cal totally failed (which was dependent on initial parameters)
488
*** Spring looked worse than the rest (surprisingly), but this may be because online calibration wasn't great
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490 2 Richard Trotta
----
491 68 Richard Trotta
492 111 Richard Trotta
h3. Nov 5,2019
493 68 Richard Trotta
494
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500
495
496
* Timing update (Stephen)
497
** Reference times between Richard and Stephen are very similar and the GitHub is updated accordingly
498
** Richard is going to add the trigger time cuts once the fall runs are finished (by end of week)
499
** First pass of detector reference time parameter files finished
500 1 Richard Trotta
501 68 Richard Trotta
* Peter's hcana code (Richard and Stephen)
502
** 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
503
*** Richard has emailed Peter about the issue with no response yet (follow-up soon)
504
** 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.
505
506
* Calibrations were decided to be done once per shift
507
508
* Next meeting schedule...
509 127 Richard Trotta
** Small meetings Nov 12 and Nov 19 (at 3pm EST) so Richard and Stephen can iron out the timing and calibrations
510
** November 26 (at 3pm EST) will be a larger meeting. 
511 68 Richard Trotta
*** This is the rough deadline we made for finishing up calibrations. 
512
*** 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!!
513
514
----
515
516 111 Richard Trotta
h3. Oct 22,2019
517 62 Richard Trotta
518 64 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
519 62 Richard Trotta
520 65 Richard Trotta
* SHMS Reference Time Amplitude Cuts(Stephen)
521
** Extra peaks in HG from cross-talk and "ghost-bands" due to ADC screw up
522
*** cuts applied on SHMS ADC ref time amplitude (greater than zero) done before any further event selection and histogram filling
523
** This is a temporary fix to "ghost-bands" and cross talk
524
*** Although for HG there is still a small peak. The hodoscope is fine.
525
** The time window is easier to set now.
526
** DC has been fine (since it uses TDC)
527
*** DC calibrations should be good to complete, other detectors need more fixes (i.e. the remaining "ghost-band")
528
** Hodoscope still bad but this might be because of that "ghost-band", needs to be further investigated
529
530 1 Richard Trotta
* Peter's hcana fixes for reference time (Richard)
531 67 Richard Trotta
** Peter implemented changes to hcana
532
** Two major issues...
533 1 Richard Trotta
## Amplitude goes to null and integral is low or negative which causes a rate-dependent efficiency. 
534 67 Richard Trotta
*** Peter has used the average pulse value acquired over a large sample of runs for each detector. 
535 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)
536 67 Richard Trotta
*** Peter created a routine to find the best offset by means of matching TDC and ADC
537
** Richard has been checking for bugs in the code. 
538
*** It seems to be ready to implement, Richard emailed Peter for confirmation on the implementation in our group directory
539
540 1 Richard Trotta
* Calibration of HMS detectors when the timing is agreed upon by Stephen and Richard.
541 67 Richard Trotta
** Besides hodoscope which still has an issue with the script
542 65 Richard Trotta
** Stephen and Richard are having a meeting late next week to determine time window values
543 62 Richard Trotta
*** These will be relatively final, but on the wider side if adjustments need to be made in the future
544
545 1 Richard Trotta
-----
546 61 Richard Trotta
547 111 Richard Trotta
h3. Sep 24,2019
548 61 Richard Trotta
549
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
550 1 Richard Trotta
551 61 Richard Trotta
-----
552 1 Richard Trotta
553 111 Richard Trotta
h3. Sep 10,2019
554 59 Vijay Kumar
555
*Links to talks->* "Stephen":https://redmine.jlab.org/documents/69 "Ali":https://redmine.jlab.org/documents/72 "Richard":https://redmine.jlab.org/issues/500
556 1 Richard Trotta
557
-----
558 55 Stephen Kay
559 111 Richard Trotta
h3. August 26, 2019
560 55 Stephen Kay
561
*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
562 1 Richard Trotta
563 54 Richard Trotta
----
564
565 111 Richard Trotta
h3. June 21, 2019
566 54 Richard Trotta
567 1 Richard Trotta
*Links to talks->* "Hallc Talk Outline":https://redmine.jlab.org/documents/60 
568 54 Richard Trotta
569 42 Stephen Kay
----
570
571 111 Richard Trotta
h3. June 14, 2019
572 1 Richard Trotta
573 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
574 42 Stephen Kay
575
576 35 Stephen Kay
----
577 1 Richard Trotta
578 111 Richard Trotta
h3. June 4, 2019
579 36 Vijay Kumar
580 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
581 35 Stephen Kay
582 1 Richard Trotta
583 35 Stephen Kay
----
584 1 Richard Trotta
585 111 Richard Trotta
h3. May 21, 2019
586 1 Richard Trotta
587
*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
588 35 Stephen Kay
589
----
590 1 Richard Trotta
591 111 Richard Trotta
h3. May 14, 2019
592 1 Richard Trotta
593 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
594 1 Richard Trotta
595 35 Stephen Kay
----
596 1 Richard Trotta
597 111 Richard Trotta
h3. April 30, 2019
598 1 Richard Trotta
599
*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
600 35 Stephen Kay
601 1 Richard Trotta
----
602
603
h3. February 4, 2019
604
605
*Links to talks->* "Richard":https://redmine.jlab.org/documents/43 "Stephen":https://redmine.jlab.org/documents/44
606
607
----
608 113 Richard Trotta
609 112 Richard Trotta
h2. 2018 Meetings
610 141 Stephen Kay
611
----
612 111 Richard Trotta
613
h3. August 21, 2018
614
615 1 Richard Trotta
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
616 35 Stephen Kay
617 1 Richard Trotta
----
618 35 Stephen Kay
619 111 Richard Trotta
h3. August 8, 2018
620 35 Stephen Kay
621
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
622 1 Richard Trotta
623
----
624 35 Stephen Kay
625 111 Richard Trotta
h3. August 3, 2018
626 1 Richard Trotta
627 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383
628
*Links to talks->*
629 1 Richard Trotta
630 35 Stephen Kay
----
631 1 Richard Trotta
632 111 Richard Trotta
h3. July 11, 2018
633 1 Richard Trotta
634 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383 #384
635 1 Richard Trotta
636 35 Stephen Kay
*Action items:*
637 1 Richard Trotta
638 35 Stephen Kay
* Update run plan, e.g. add prescales (Garth)
639
* Check on details of: magnet cycling procedure, minimum angles, MCC fringe field steering, beam energy measurements, optics checks (Tanja)
640
* Identify additional run coordinators (Tanja)
641
* Encourage collaborators to take shifts, e.g. FIU (Pete)
642
* Draft email about shifts etc. to collaboration (Tanja)
643
* Develop diagnostic scripts and kaonLT specific (Richard, Ryan)
644
* Continue documentation development, e.g. checklist, shift taker instructions, HowTo or link to generic Hall C HowTo, task list, web page (Richard, Garth)
645 1 Richard Trotta
646 35 Stephen Kay
*Discussions:*
647
648
* 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
649
* HGC: waiting for re-installation
650
* Trigger checkout: main items to keep in mind: fADC thresholds, timing HMS/SHMS - leading arm, possible rate limitations
651 1 Richard Trotta
* Shifts
652
* Diagnostics scripts and documentation
653
* Personnel schedules
654
655
----
656
657 111 Richard Trotta
h3. June 28, 2018
658 1 Richard Trotta
659
*Links to talks->* "Richard":https://redmine.jlab.org/documents/34
660
661
*Action Items:*
662
663
* Develop and post shift schedule. Send out request. Find out who is KAONLT liaison (Tanja)
664
* Contact potential run coordinators. (Tanja)
665
* Aerogel tray exchange for start of experiment and coordination of future exchanges (Vladimir)
666
* Update runplan and prepare documents needed for shift crew, e.g. run sheets (Garth)
667
* Set up a web page to collect and link from Redmine - How-To documents, initial calibrations, etc. (Garth, Richard)
668
* 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)
669
* Develop trigger/detector checkout plan (Tanja, initial draft)
670
** Are all experts available at run start, experts needed: coincidence timing , Harp Scans, BCM calibrations, ...
671
* 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)
672
* Find out if all aerogel trays needed for experiment can be stored inside Hall C to avoid having to open truck ramp (Vladimir)
673
674
*Analysis Updates:*
675
676
* Ryan 
677
** resolving differences between his analysis and Richard's
678
679
* Richard
680
** 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
681
** 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.
682
683
----
684
685 111 Richard Trotta
h3. May 31, 2018
686 1 Richard Trotta
687 35 Stephen Kay
*Links to talks->* "Samip":https://redmine.jlab.org/documents/30
688 1 Richard Trotta
689 35 Stephen Kay
----
690 1 Richard Trotta
691 111 Richard Trotta
h3. May 17, 2018 
692 1 Richard Trotta
693 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
694 2 Richard Trotta
695 35 Stephen Kay
* Luminosity scans (Richard, Ryan)
696 111 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
697 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
698
** discussion about pre-scale factors
699 1 Richard Trotta
700 35 Stephen Kay
* Discussion about Richard's script extracting and printing information from report files and trees including histograms
701
** Add option for looking at yields with cuts on cointime, target window, and missing mass
702
** Add option to look at real peak vs. background level
703 1 Richard Trotta
704 35 Stephen Kay
* H(e,e'p) kinematics investigation for fall run (Samip)
705
** 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
706 1 Richard Trotta
707 35 Stephen Kay
* *Action Items*
708
** Luminosity scans at low rates from January (Richard)
709
** Luminosity scans from April with corrected efficiencies, e.d. DT (Ryan)
710
** H(e,e'p) and H(e,e') kinematics for upcoming Kaon LT run (Samip)
711
** Kaon LT detailed run plan (Garth, Pete, Tanja)
712
** Preparations, e.g. report files, diagnostic histograms and real time monitoring, shift worker instructions, optimization of trees (all)
713 1 Richard Trotta
714
----
715
716 111 Richard Trotta
h3. May 10, 2018
717 35 Stephen Kay
718 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
719 35 Stephen Kay
720
* Luminosity Scans January 2018 (Richard)
721
** Tracking-based analysis for Runs 1415-1423, .. for now focus on HMS, typical HMS S1X rates are <
722
** Cuts applied: PID for electrons (Cer, Cal), acceptance (delta)
723
** Efficiency calculation was investigated in detail and applied using scalers from trees
724
** Results for carbon (normalized to 30uA) show large variation - need to understand
725
** *Next steps:*
726
*** Double check calculation of computer lifetime, look for differences in TRIG and PRETRIG scalers
727
*** Check stability of pre-scale (Ryan saw changes within runs)
728
*** Check if detector calibrations for runs are implemented correctly
729
*** Analyze with Ryan's cuts
730 1 Richard Trotta
731 35 Stephen Kay
* Luminosity Scans April 2018 (Ryan)
732
** Confirms Richard's earlier finding that scaler-based analysis is not reliable and that it's best to analyze event-by-event
733
** Tracking-based analysis for runs 2073-2095
734
** Cuts applied: PID for electrons (TOF, Cal, Chi2), acceptance (delta and angles), BCM4a
735
** Included most recent detector calibrations in replay of these runs
736
** Efficiencies from report file mainly, may need to update tracking efficiency implementation
737
** Found that calculations of computer deadtime requires different set of scalers for runs from January to those from April 2018
738
** Results show carbon yields consistent with unity within error (0.5% error bars), and boiling for hydrogen and deuterium
739
** *Next steps:*
740 5 Richard Trotta
*** Check tracking efficiency
741 35 Stephen Kay
742
* *Global comments on Luminosity Scans (so far)*
743 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.
744 35 Stephen Kay
** Efficiencies in report files need to be updated, e.g. CPU deadtime (Richard)
745
** Check if BCM4a is the one closest to the target - get a map of the hall (Richard, Ryan)
746
** Uncertainties on current
747
** Detector calibrations
748 1 Richard Trotta
** HMS vs. SHMS
749 35 Stephen Kay
750
* eK+ coincidence time from SIDIS Spring 2018 run (Samip)
751
** Worked with Mark Jones on coincidence time calculation - now available in hcana (see Samip's 10 May 2018 email for more details)
752
** runs used in this analysis: 3423 with Q2=3.1 GeV2 and W=2.78 GeV
753
** Coincidence time spectrum shows peak separations >2 ns corresponding to different accelerator frequency
754
** Missing mass spectra: Kaon peak clearly visible, also see pions even after cuts
755
** Found that pions appear localized in phase space - seems to be due to end point in kinematic phase space
756 1 Richard Trotta
** *Next steps:*
757 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)
758 35 Stephen Kay
759
* Yield normalized ratios from SIDIS (Hem)
760
** Yield ratios of data to MC match well in shape, but normalization seems not quite right
761
** *Next steps:*
762 4 Richard Trotta
*** Check if efficiencies, currents, run time etc. are taken into account correctly
763
764
----
765 35 Stephen Kay
766 111 Richard Trotta
h3. April 26, 2018
767 4 Richard Trotta
768 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
769 4 Richard Trotta
770 35 Stephen Kay
* Discussion luminosity scan analysis (earlier scan) - Richard
771
** 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
772
** Notes on efficiencies in report file:
773
*** DT (EDTM) is not electronic deadtime. Instead use for now 50ns* trigger rate for HMS and 100ns* trigger rate for SHMS
774
*** Cherenkov efficiency seems low (check if that is due to PID, thresholds, pi/e, etc)
775
*** Tracking efficiency needs to be checked
776
*** 3/4 trigger efficiency seems ok
777
* Discussion luminosity scan analysis (later scan) - Ryan
778
** Fewer carbon runs than earlier scan
779
** Shown is a tracking-based analysis using data from the ROOT trees
780 111 Richard Trotta
** First results for carbon, LH3, and LD2, but efficiencies need to be checked
781 35 Stephen Kay
* SIDIS analysis - Hem
782
** Shown is a data/MC comparison for different kinematic settings. Agreement in shape is very good. Normalization has yet to be applied.
783
** Discussion about agreement in z and apparent offset - relation of this offset with spectrometer offset
784
* Analysis of exclusive events in SIDIS - Samip
785
** Shown is a look at the first kaon events in exclusive limit of SIDIS data
786
** Ongoing work on implementing coincidence time into tree
787
* Discussion of run plan, and in particular possible low Q2/low energy
788
** Assume that kaon low Q2=0.4 already included - have kinematics with specified beam energies, if needed
789
** 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
790
** Garth will put this together in a draft email
791
792 12 Richard Trotta
----
793
794 111 Richard Trotta
h3. March 29, 2018
795 12 Richard Trotta
796 35 Stephen Kay
*Links to talks->* "Richard, ":https://redmine.jlab.org/documents/16 "Samip":https://redmine.jlab.org/documents/27
797 13 Richard Trotta
798 35 Stephen Kay
* Details of adding points to fall run plan - will be ready sooner, likely in week of 4/1 (Garth, Samip, Tanja)
799
* Luminosity scans (Ryan, Andres, Richard, Pete)
800
* Macros, SIDIS analysis (Hem, Anashe)
801
* Elastic data (TBD)
802
803 14 Richard Trotta
----
804 18 Richard Trotta
805 111 Richard Trotta
h3. February 22, 2018
806 18 Richard Trotta
807 35 Stephen Kay
*Links to talks->* "Andres":https://redmine.jlab.org/documents/19
808 18 Richard Trotta
809 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.
810
* Brief description of Samip's work - working on coincidence timing decoding with JLab staff and re-optimization of kinematics
811
* Discussion of Richard's slides on run plan kinematics and preparations -
812
** 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
813
** 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
814
** for each setting will need 1-2 shifts for calibrations - need to negotiate with other experiments in run group
815
** kinematics plots W-Q2 show that still need to do some optimization
816
** run sheets: include raster size, update coincidence count labeling, and carbon target labeling
817
* Discussion of next meeting. Garth at JLab 8-16 March - might have meeting during that time.
818 26 Richard Trotta
819 35 Stephen Kay
* *Action Items:*
820
** Post slides/notes from this meeting and procedure to set up hcana in Redmine (Tanja)
821
** Update run sheet and kinematic optimization for W/Q2 (Garth)
822
** Circulate elastic calculations for kinematic settings (Samip)
823
** Continue investigation of elastic data and run plan kinematics (Andres/Richard)
824
** Test software installation instructions (Pete)
825
** 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) 
826 32 Stephen Kay
827
----