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Kaon LT Meetings » History » Version 218

Richard Trotta, 07/21/2021 04:49 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
11 217 Richard Trotta
h3. July 21, 2021
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13 218 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1250/KaonLTMeeting7_14_21.pdf
14 217 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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16 218 Richard Trotta
Next meeting August 4th @ 4:30 ED
17 217 Richard Trotta
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20
h2. 2021 Meetings
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22 215 Richard Trotta
h3. May 12, 2021
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24
* Richard
25
** 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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27 216 Richard Trotta
Next meeting May 26th @ 4:30 ED
28 215 Richard Trotta
29
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30
31 213 Richard Trotta
h3. April 28, 2021
32
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* Richard
34 214 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.
35 213 Richard Trotta
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Next meeting May 12th @ 4:30 EDT
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40 211 Richard Trotta
h3. April 14, 2021
41 212 Richard Trotta
42 211 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). 
44
** 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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50 203 Richard Trotta
h3. March 31, 2021
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52 206 Richard Trotta
* Richard
53 209 Richard Trotta
** Luminosity studies
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*** PionLT carbon runs
55
**** 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
57
**** 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)*
68 210 Stephen Kay
* Stephen
69
** 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
71
*** 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.
75 207 Richard Trotta
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77 203 Richard Trotta
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Next meeting April 14th @ 4:30 EDT
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82 201 Stephen Kay
h3. March 24, 2021
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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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87 202 Stephen Kay
Next meeting March 31st @ 4:30 EDT
88 201 Stephen Kay
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91 200 Richard Trotta
h3. March 17, 2021
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* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_3_17_21.pdf
94 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.
95 202 Stephen Kay
* Mini meeting March 24th @ 4:30 EDT
96 201 Stephen Kay
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Next meeting March 31st @ 4:30 EDT
98 200 Richard Trotta
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100 194 Richard Trotta
101 199 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). 
105
** 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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112 196 Richard Trotta
h3. February 17, 2021
113 194 Richard Trotta
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* Richard
115
** 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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117 198 Nathan Heinrich
* Nathan
118
** Presented an update on the Hodoscope Calibrations: https://redmine.jlab.org/attachments/download/1196/HodoscopeUpdate_2021Feb17.pdf
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120 194 Richard Trotta
Next meeting March 3rd @ 4:30 EST
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124 196 Richard Trotta
h3. February 3, 2021
125 193 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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133 196 Richard Trotta
h3. January 20, 2021
134 191 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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139 191 Richard Trotta
Next meeting February 3rd @ 4:30 EST
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143 196 Richard Trotta
h3. January 6, 2021
144 190 Richard Trotta
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* "Richard":https://redmine.jlab.org/attachments/download/1153/KaonLTMeeting1_6_21.pdf
146 186 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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150 191 Richard Trotta
Next meeting January 20th @ 4:30 EST
151 186 Richard Trotta
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h2. 2020 Meetings
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157 185 Richard Trotta
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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172 180 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
177 181 Richard Trotta
** He is investigating some of the EDTM rate dependence and sees a discrepancy between the total EDTM LT and CPU LT with a sudden dip at 20-30 kHz. More luminosity runs will need to be studied for a full conclusion.
178 180 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
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** Updated the hallc_replay_lt with parameter files for all coin peaks.
182 180 Richard Trotta
* Vijay
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** 
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185 184 Richard Trotta
Next meeting December 2nd @ 4:30 EST
186 180 Richard Trotta
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189 178 Richard Trotta
h3. November 4, 2020
190
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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
194 179 Richard Trotta
** Scaler analysis is getting closer to an answer. An in-depth comparison of Carlos and Richard's analysis shows inconsistencies between the two.
195 178 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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203 141 Stephen Kay
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205 170 Richard Trotta
h3. October 28, 2020
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* Ali
208 177 Richard Trotta
** Went over some of his tracking procedures for the report file implementation
209 172 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1091/KaonLTMeeting10_28_20.pdf
210 173 Richard Trotta
** Luminosity analysis continues. There are still some issues but things have improved a bit.
211 171 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
214 176 Richard Trotta
** Dry run for Mark's hallc meeting tomorrow (10/29)
215 170 Richard Trotta
216 177 Richard Trotta
Next meeting November 4th @ 4:30 EST
217 170 Richard Trotta
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220 164 Richard Trotta
h3. October 14, 2020
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222 168 Richard Trotta
* Ali
223 164 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.
226 167 Richard Trotta
* Stephen
227 164 Richard Trotta
** He has included a demo for using the python analysis script in the README.
228 1 Richard Trotta
229 170 Richard Trotta
Next meeting October 28th @ 4:30 EST
230 164 Richard Trotta
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233 161 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.
241 161 Richard Trotta
242 163 Richard Trotta
Next meeting October 14th @ 4:30 EST
243 161 Richard Trotta
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246 149 Richard Trotta
h3. September 9, 2020
247 156 Richard Trotta
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* Richard
249 157 Richard Trotta
** Still working on run list, GUI checks
250 156 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
255 158 Richard Trotta
* Vijay
256 156 Richard Trotta
** Nearly finished with HGcer calibrations
257 1 Richard Trotta
258 161 Richard Trotta
Next meeting September 23rd @ 4:30 EST
259 156 Richard Trotta
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h3. August 26, 2020
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264 149 Richard Trotta
*Links to talks->* "Ali":https://redmine.jlab.org/issues/483 "Vijay":https://redmine.jlab.org/issues/479
265 154 Richard Trotta
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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
273 150 Richard Trotta
** Updated the SHMS HGCher analysis. The calibrations are coming along, but a little more work needs to be finished up.
274 1 Richard Trotta
275 156 Richard Trotta
Next meeting September 9 @ 5 EST
276 150 Richard Trotta
277 149 Richard Trotta
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279 144 Richard Trotta
h3. July 29, 2020
280 147 Stephen Kay
281 148 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
282 146 Stephen Kay
283 155 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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288 150 Richard Trotta
Next meeting August 26th @ 4:30 EST
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290 144 Richard Trotta
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292 139 Richard Trotta
h3. July 8, 2020
293 1 Richard Trotta
294 139 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
295 150 Richard Trotta
296 140 Richard Trotta
Next meeting July 29 @ 4:30 EST
297 139 Richard Trotta
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300 132 Richard Trotta
h3. June 24, 2020
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302 143 Richard Trotta
*Links to talks->* "Vijay":https://redmine.jlab.org/attachments/download/1014/Vijay_24_June_20.pdf "Richard":https://redmine.jlab.org/attachments/download/1013/KaonLTMeeting_6_24_20.pdf
303 137 Richard Trotta
Next meeting July 8th @ 4:30 EST
304 132 Richard Trotta
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307 129 Richard Trotta
h3. June 9, 2020
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309 135 Richard Trotta
*Links to talks->* "Vijay":https://redmine.jlab.org/attachments/download/1006/Vijay_9_June_20.pdf "Ali":https://redmine.jlab.org/attachments/download/1007/KaonLT_Meeting_Jun_9.pdf "Richard":https://redmine.jlab.org/attachments/download/1005/KaonLTMeeting_6_9_20.pdf
310 129 Richard Trotta
311 131 Richard Trotta
Next meeting June 24th @ 4:30 EST
312 129 Richard Trotta
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315 125 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
318 128 Richard Trotta
319 127 Richard Trotta
Next meeting June 9th @ 4:30 EST
320 125 Richard Trotta
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323 118 Stephen Kay
h3. May 13, 2020
324 124 Richard Trotta
325 138 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
326 1 Richard Trotta
327 127 Richard Trotta
Next meeting May 27th @ 4:30 EST
328 118 Stephen Kay
329 121 Richard Trotta
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331 111 Richard Trotta
h3. April 29, 2020
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333 138 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
334 106 Richard Trotta
335 127 Richard Trotta
Next meeting May 13th @ 4:30 EST
336 106 Richard Trotta
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338 106 Richard Trotta
339 111 Richard Trotta
h3. April 15, 2020
340 104 Richard Trotta
341 102 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/attachments/download/977/KaonLTMeeting_4_15_20.pdf
342 105 Richard Trotta
343 127 Richard Trotta
Next meeting April 29th @ 4:30 EST
344 1 Richard Trotta
345 102 Richard Trotta
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346 95 Stephen Kay
347 111 Richard Trotta
h3. April 1, 2020
348 100 Stephen Kay
349 138 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
350 101 Richard Trotta
351 127 Richard Trotta
Next meeting April 15th @  4:30 EST
352 101 Richard Trotta
353 41 Stephen Kay
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354 93 Richard Trotta
355 111 Richard Trotta
h3. March 18, 2020
356 93 Richard Trotta
357
*Links to talks->* "Richard's EIC Temple Draft 2":https://redmine.jlab.org/attachments/download/942/DRAFT2_mesonSF_EIC_Temple.pdf
358 1 Richard Trotta
359 127 Richard Trotta
Next meeting April 1st @  4:30 EST
360 93 Richard Trotta
361
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362 91 Richard Trotta
363 111 Richard Trotta
h3. March 11, 2020
364 92 Richard Trotta
365 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
366 94 Richard Trotta
367 127 Richard Trotta
Next meeting March 18th @  4:30 EST
368 91 Richard Trotta
369
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370 88 Richard Trotta
371 111 Richard Trotta
h3. Feb 26, 2020
372 90 Richard Trotta
373
* Peter's changes to hcana should be coming soon. Richard will check with Mark when he is down there for an update.
374
* Need to incorporate the latest "BCM updates":https://hallcweb.jlab.org/doc-public/ShowDocument?docid=1034 from Dave Mack.
375 1 Richard Trotta
* Richard should look at the luminosity scalar analysis before and after the BCM changes once he gets his script working again.
376 88 Richard Trotta
**  He is checking with Mark about this while he is down in jlab. 
377 1 Richard Trotta
378 127 Richard Trotta
Next meeting March 11th @  4:30 EST
379 86 Richard Trotta
380 1 Richard Trotta
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381 86 Richard Trotta
382 111 Richard Trotta
h3. Feb 10, 2020 
383 87 Richard Trotta
384 127 Richard Trotta
Next meeting Feb 26th @ 11 am EST
385 86 Richard Trotta
386
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387 1 Richard Trotta
388 111 Richard Trotta
h3. Jan 22, 2020
389 83 Richard Trotta
390
*Links to talks->* "Richard's Hall C Winter Talk Draft 1":https://redmine.jlab.org/attachments/download/937/KaonLTHallC_WinterTalk2020_Draft1.pdf
391 85 Richard Trotta
392 127 Richard Trotta
Next meeting Feb 10 @ 11 am EST
393 83 Richard Trotta
394 1 Richard Trotta
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395 83 Richard Trotta
396 111 Richard Trotta
h3. Jan 15,2020
397 81 Richard Trotta
398 82 Richard Trotta
*Links to talks->* "Richard's Hall C Winter Talk Outline":https://redmine.jlab.org/attachments/download/936/KaonLTHallC_WinterTalk2020.pdf
399 81 Richard Trotta
400 127 Richard Trotta
Next meeting Jan 22 @ 11 am EST
401 81 Richard Trotta
402
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403 78 Richard Trotta
404 111 Richard Trotta
h3. Jan 8,2020
405 78 Richard Trotta
406 1 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/76
407 79 Richard Trotta
408 1 Richard Trotta
* Richard
409
** PID efficiency script is coming together
410
*** Tighter cuts and cuts on timing, beta, etc. will be needed for cleaner electron cuts
411
*** 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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415 80 Richard Trotta
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416 113 Richard Trotta
417 112 Richard Trotta
h2. 2019 Meetings
418 80 Richard Trotta
419 141 Stephen Kay
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420
421 111 Richard Trotta
h3. Dec 17,2019
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423 77 Richard Trotta
Reminder: Mark Jones' commissioning analysis meetings are bi-weekly and announced by Mark
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* Stephen
426
** Number of passes finished for HMS calorimeter
427
*** Still wiggles in all passes
428
** Finished his report on calibrations, "DC and Calorimeters":https://redmine.jlab.org/documents/74
429
** 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
430
*** CUA will be putting together a similar list
431 1 Richard Trotta
432 77 Richard Trotta
* Richard
433
** Fixed one error issue with SHMS calorimeter calibration code (discussed Dec 10th meeting), but still have one error
434
** PID efficiency script plots are complete, but still some questions he needs to work out before a final version
435
*** Eventually need to include tracking into PID efficiencies
436
** Pete brought up the question for a number of multi-hits we are getting
437
*** (Dead Time)+(Trigger efficiency)-EDTM
438
439 127 Richard Trotta
Next meeting will be after the break; Wednesday, January 8th at 3 pm EST
440 77 Richard Trotta
441
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442 72 Richard Trotta
443 111 Richard Trotta
h3. Dec 10,2019
444 72 Richard Trotta
445 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
448
** Wit had lots of hcana changes but they seem to be critical to our work 
449
*** Changes such as new detector classes
450 1 Richard Trotta
** Hopefully Wit will present these in the next commissioning meeting
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452 77 Richard Trotta
* Stephen improved wiggles but still prevalent
453 74 Richard Trotta
454
* Richard finished HGCer calibrations, he concluded that the online parameters are sufficient
455
** He also has been looking at SHMS calorimeter calibrations but has had issues running the scripts. Most likely a pathing issue.
456
** The "tasks":https://redmine.jlab.org/projects/kltexp/wiki/Analysis_Tasks page has been updated with a section for efficiencies. 
457
*** A PID efficiency script is currently being developed and hopefully should have some plots for our next meeting.
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459 127 Richard Trotta
* Next meeting will be December 17th at 3 pm EST.
460 74 Richard Trotta
461 75 Richard Trotta
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462 74 Richard Trotta
463 111 Richard Trotta
h3. Nov 26,2019
464 71 Richard Trotta
465
*Links to talks->* "Richard":https://redmine.jlab.org/issues/480
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* Stephen
468
** DC SHMS, small-angle has poor performance
469
*** Tighter cuts or PID (currently only looks for electrons)
470
** Vardan said calorimeter wiggles are an ongoing issue with no current solution
471
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* Richard
473 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.
474 71 Richard Trotta
*** Richard will pick up looking at the HGCer calibrations from Vijay's scripts. 
475
*** Richard will also be looking at the SHMS calorimeter and with the suggestion of getting some negatively polarized SHMS runs from Hem.
476
** The HMS Cherenkov is finished with the conclusion that the calibrations from the online runs are good
477
** We can begin looking forward towards efficiencies. 
478
*** Garth suggested that looking at PID may be an advantageous first steps. Precise definitions of these PIDs will need to be logged.
479
*** Clear notes on efficiencies steps will be needed. They will need to be redefined multiple times in multiple ways. 
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* Hem
482
** Has been looking at the calorimeter as well. 
483 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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485
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486
487 111 Richard Trotta
h3. Nov 19,2019
488 1 Richard Trotta
489 70 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
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* Richard
492
** Finished up TDC cut paper going through the procedure (found "here":https://redmine.jlab.org/issues/500)
493
** Needed to add Carlos pre-trigger designs to an appendix for the paper which clarifies the introduction section
494
495
* Stephen
496
** Issues with DC calibration for only a few runs during each run period
497
** "wiggles" in HMS calorimeter calibrations for some runs
498
*** few runs where HMS cal totally failed (which was dependent on initial parameters)
499
*** Spring looked worse than the rest (surprisingly), but this may be because online calibration wasn't great
500
501 2 Richard Trotta
----
502 68 Richard Trotta
503 111 Richard Trotta
h3. Nov 5,2019
504 68 Richard Trotta
505
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500
506
507
* Timing update (Stephen)
508
** Reference times between Richard and Stephen are very similar and the GitHub is updated accordingly
509
** Richard is going to add the trigger time cuts once the fall runs are finished (by end of week)
510
** First pass of detector reference time parameter files finished
511 1 Richard Trotta
512 68 Richard Trotta
* Peter's hcana code (Richard and Stephen)
513
** 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
514
*** Richard has emailed Peter about the issue with no response yet (follow-up soon)
515
** 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.
516
517
* Calibrations were decided to be done once per shift
518
519
* Next meeting schedule...
520 127 Richard Trotta
** Small meetings Nov 12 and Nov 19 (at 3pm EST) so Richard and Stephen can iron out the timing and calibrations
521
** November 26 (at 3pm EST) will be a larger meeting. 
522 68 Richard Trotta
*** This is the rough deadline we made for finishing up calibrations. 
523
*** 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!!
524
525
----
526
527 111 Richard Trotta
h3. Oct 22,2019
528 62 Richard Trotta
529 64 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
530 62 Richard Trotta
531 65 Richard Trotta
* SHMS Reference Time Amplitude Cuts(Stephen)
532
** Extra peaks in HG from cross-talk and "ghost-bands" due to ADC screw up
533
*** cuts applied on SHMS ADC ref time amplitude (greater than zero) done before any further event selection and histogram filling
534
** This is a temporary fix to "ghost-bands" and cross talk
535
*** Although for HG there is still a small peak. The hodoscope is fine.
536
** The time window is easier to set now.
537
** DC has been fine (since it uses TDC)
538
*** DC calibrations should be good to complete, other detectors need more fixes (i.e. the remaining "ghost-band")
539
** Hodoscope still bad but this might be because of that "ghost-band", needs to be further investigated
540
541 1 Richard Trotta
* Peter's hcana fixes for reference time (Richard)
542 67 Richard Trotta
** Peter implemented changes to hcana
543
** Two major issues...
544 1 Richard Trotta
## Amplitude goes to null and integral is low or negative which causes a rate-dependent efficiency. 
545 67 Richard Trotta
*** Peter has used the average pulse value acquired over a large sample of runs for each detector. 
546 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)
547 67 Richard Trotta
*** Peter created a routine to find the best offset by means of matching TDC and ADC
548
** Richard has been checking for bugs in the code. 
549
*** It seems to be ready to implement, Richard emailed Peter for confirmation on the implementation in our group directory
550
551 1 Richard Trotta
* Calibration of HMS detectors when the timing is agreed upon by Stephen and Richard.
552 67 Richard Trotta
** Besides hodoscope which still has an issue with the script
553 65 Richard Trotta
** Stephen and Richard are having a meeting late next week to determine time window values
554 62 Richard Trotta
*** These will be relatively final, but on the wider side if adjustments need to be made in the future
555
556 1 Richard Trotta
-----
557 61 Richard Trotta
558 111 Richard Trotta
h3. Sep 24,2019
559 61 Richard Trotta
560
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
561 1 Richard Trotta
562 61 Richard Trotta
-----
563 1 Richard Trotta
564 111 Richard Trotta
h3. Sep 10,2019
565 59 Vijay Kumar
566
*Links to talks->* "Stephen":https://redmine.jlab.org/documents/69 "Ali":https://redmine.jlab.org/documents/72 "Richard":https://redmine.jlab.org/issues/500
567 1 Richard Trotta
568
-----
569 55 Stephen Kay
570 111 Richard Trotta
h3. August 26, 2019
571 55 Stephen Kay
572
*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
573 1 Richard Trotta
574 54 Richard Trotta
----
575
576 111 Richard Trotta
h3. June 21, 2019
577 54 Richard Trotta
578 1 Richard Trotta
*Links to talks->* "Hallc Talk Outline":https://redmine.jlab.org/documents/60 
579 54 Richard Trotta
580 42 Stephen Kay
----
581
582 111 Richard Trotta
h3. June 14, 2019
583 1 Richard Trotta
584 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
585 42 Stephen Kay
586
587 35 Stephen Kay
----
588 1 Richard Trotta
589 111 Richard Trotta
h3. June 4, 2019
590 36 Vijay Kumar
591 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
592 35 Stephen Kay
593 1 Richard Trotta
594 35 Stephen Kay
----
595 1 Richard Trotta
596 111 Richard Trotta
h3. May 21, 2019
597 1 Richard Trotta
598
*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
599 35 Stephen Kay
600
----
601 1 Richard Trotta
602 111 Richard Trotta
h3. May 14, 2019
603 1 Richard Trotta
604 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
605 1 Richard Trotta
606 35 Stephen Kay
----
607 1 Richard Trotta
608 111 Richard Trotta
h3. April 30, 2019
609 1 Richard Trotta
610
*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
611 35 Stephen Kay
612 1 Richard Trotta
----
613
614
h3. February 4, 2019
615
616
*Links to talks->* "Richard":https://redmine.jlab.org/documents/43 "Stephen":https://redmine.jlab.org/documents/44
617
618
----
619 113 Richard Trotta
620 112 Richard Trotta
h2. 2018 Meetings
621 141 Stephen Kay
622
----
623 111 Richard Trotta
624
h3. August 21, 2018
625
626 1 Richard Trotta
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
627 35 Stephen Kay
628 1 Richard Trotta
----
629 35 Stephen Kay
630 111 Richard Trotta
h3. August 8, 2018
631 35 Stephen Kay
632
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
633 1 Richard Trotta
634
----
635 35 Stephen Kay
636 111 Richard Trotta
h3. August 3, 2018
637 1 Richard Trotta
638 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383
639
*Links to talks->*
640 1 Richard Trotta
641 35 Stephen Kay
----
642 1 Richard Trotta
643 111 Richard Trotta
h3. July 11, 2018
644 1 Richard Trotta
645 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383 #384
646 1 Richard Trotta
647 35 Stephen Kay
*Action items:*
648 1 Richard Trotta
649 35 Stephen Kay
* Update run plan, e.g. add prescales (Garth)
650
* Check on details of: magnet cycling procedure, minimum angles, MCC fringe field steering, beam energy measurements, optics checks (Tanja)
651
* Identify additional run coordinators (Tanja)
652
* Encourage collaborators to take shifts, e.g. FIU (Pete)
653
* Draft email about shifts etc. to collaboration (Tanja)
654
* Develop diagnostic scripts and kaonLT specific (Richard, Ryan)
655
* Continue documentation development, e.g. checklist, shift taker instructions, HowTo or link to generic Hall C HowTo, task list, web page (Richard, Garth)
656 1 Richard Trotta
657 35 Stephen Kay
*Discussions:*
658
659
* 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
660
* HGC: waiting for re-installation
661
* Trigger checkout: main items to keep in mind: fADC thresholds, timing HMS/SHMS - leading arm, possible rate limitations
662 1 Richard Trotta
* Shifts
663
* Diagnostics scripts and documentation
664
* Personnel schedules
665
666
----
667
668 111 Richard Trotta
h3. June 28, 2018
669 1 Richard Trotta
670
*Links to talks->* "Richard":https://redmine.jlab.org/documents/34
671
672
*Action Items:*
673
674
* Develop and post shift schedule. Send out request. Find out who is KAONLT liaison (Tanja)
675
* Contact potential run coordinators. (Tanja)
676
* Aerogel tray exchange for start of experiment and coordination of future exchanges (Vladimir)
677
* Update runplan and prepare documents needed for shift crew, e.g. run sheets (Garth)
678
* Set up a web page to collect and link from Redmine - How-To documents, initial calibrations, etc. (Garth, Richard)
679
* 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)
680
* Develop trigger/detector checkout plan (Tanja, initial draft)
681
** Are all experts available at run start, experts needed: coincidence timing , Harp Scans, BCM calibrations, ...
682
* 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)
683
* Find out if all aerogel trays needed for experiment can be stored inside Hall C to avoid having to open truck ramp (Vladimir)
684
685
*Analysis Updates:*
686
687
* Ryan 
688
** resolving differences between his analysis and Richard's
689
690
* Richard
691
** 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
692
** 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.
693
694
----
695
696 111 Richard Trotta
h3. May 31, 2018
697 1 Richard Trotta
698 35 Stephen Kay
*Links to talks->* "Samip":https://redmine.jlab.org/documents/30
699 1 Richard Trotta
700 35 Stephen Kay
----
701 1 Richard Trotta
702 111 Richard Trotta
h3. May 17, 2018 
703 1 Richard Trotta
704 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
705 2 Richard Trotta
706 35 Stephen Kay
* Luminosity scans (Richard, Ryan)
707 111 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
708 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
709
** discussion about pre-scale factors
710 1 Richard Trotta
711 35 Stephen Kay
* Discussion about Richard's script extracting and printing information from report files and trees including histograms
712
** Add option for looking at yields with cuts on cointime, target window, and missing mass
713
** Add option to look at real peak vs. background level
714 1 Richard Trotta
715 35 Stephen Kay
* H(e,e'p) kinematics investigation for fall run (Samip)
716
** 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
717 1 Richard Trotta
718 35 Stephen Kay
* *Action Items*
719
** Luminosity scans at low rates from January (Richard)
720
** Luminosity scans from April with corrected efficiencies, e.d. DT (Ryan)
721
** H(e,e'p) and H(e,e') kinematics for upcoming Kaon LT run (Samip)
722
** Kaon LT detailed run plan (Garth, Pete, Tanja)
723
** Preparations, e.g. report files, diagnostic histograms and real time monitoring, shift worker instructions, optimization of trees (all)
724 1 Richard Trotta
725
----
726
727 111 Richard Trotta
h3. May 10, 2018
728 35 Stephen Kay
729 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
730 35 Stephen Kay
731
* Luminosity Scans January 2018 (Richard)
732
** Tracking-based analysis for Runs 1415-1423, .. for now focus on HMS, typical HMS S1X rates are <
733
** Cuts applied: PID for electrons (Cer, Cal), acceptance (delta)
734
** Efficiency calculation was investigated in detail and applied using scalers from trees
735
** Results for carbon (normalized to 30uA) show large variation - need to understand
736
** *Next steps:*
737
*** Double check calculation of computer lifetime, look for differences in TRIG and PRETRIG scalers
738
*** Check stability of pre-scale (Ryan saw changes within runs)
739
*** Check if detector calibrations for runs are implemented correctly
740
*** Analyze with Ryan's cuts
741 1 Richard Trotta
742 35 Stephen Kay
* Luminosity Scans April 2018 (Ryan)
743
** Confirms Richard's earlier finding that scaler-based analysis is not reliable and that it's best to analyze event-by-event
744
** Tracking-based analysis for runs 2073-2095
745
** Cuts applied: PID for electrons (TOF, Cal, Chi2), acceptance (delta and angles), BCM4a
746
** Included most recent detector calibrations in replay of these runs
747
** Efficiencies from report file mainly, may need to update tracking efficiency implementation
748
** Found that calculations of computer deadtime requires different set of scalers for runs from January to those from April 2018
749
** Results show carbon yields consistent with unity within error (0.5% error bars), and boiling for hydrogen and deuterium
750
** *Next steps:*
751 5 Richard Trotta
*** Check tracking efficiency
752 35 Stephen Kay
753
* *Global comments on Luminosity Scans (so far)*
754 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.
755 35 Stephen Kay
** Efficiencies in report files need to be updated, e.g. CPU deadtime (Richard)
756
** Check if BCM4a is the one closest to the target - get a map of the hall (Richard, Ryan)
757
** Uncertainties on current
758
** Detector calibrations
759 1 Richard Trotta
** HMS vs. SHMS
760 35 Stephen Kay
761
* eK+ coincidence time from SIDIS Spring 2018 run (Samip)
762
** Worked with Mark Jones on coincidence time calculation - now available in hcana (see Samip's 10 May 2018 email for more details)
763
** runs used in this analysis: 3423 with Q2=3.1 GeV2 and W=2.78 GeV
764
** Coincidence time spectrum shows peak separations >2 ns corresponding to different accelerator frequency
765
** Missing mass spectra: Kaon peak clearly visible, also see pions even after cuts
766
** Found that pions appear localized in phase space - seems to be due to end point in kinematic phase space
767 1 Richard Trotta
** *Next steps:*
768 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)
769 35 Stephen Kay
770
* Yield normalized ratios from SIDIS (Hem)
771
** Yield ratios of data to MC match well in shape, but normalization seems not quite right
772
** *Next steps:*
773 4 Richard Trotta
*** Check if efficiencies, currents, run time etc. are taken into account correctly
774
775
----
776 35 Stephen Kay
777 111 Richard Trotta
h3. April 26, 2018
778 4 Richard Trotta
779 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
780 4 Richard Trotta
781 35 Stephen Kay
* Discussion luminosity scan analysis (earlier scan) - Richard
782
** 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
783
** Notes on efficiencies in report file:
784
*** DT (EDTM) is not electronic deadtime. Instead use for now 50ns* trigger rate for HMS and 100ns* trigger rate for SHMS
785
*** Cherenkov efficiency seems low (check if that is due to PID, thresholds, pi/e, etc)
786
*** Tracking efficiency needs to be checked
787
*** 3/4 trigger efficiency seems ok
788
* Discussion luminosity scan analysis (later scan) - Ryan
789
** Fewer carbon runs than earlier scan
790
** Shown is a tracking-based analysis using data from the ROOT trees
791 111 Richard Trotta
** First results for carbon, LH3, and LD2, but efficiencies need to be checked
792 35 Stephen Kay
* SIDIS analysis - Hem
793
** Shown is a data/MC comparison for different kinematic settings. Agreement in shape is very good. Normalization has yet to be applied.
794
** Discussion about agreement in z and apparent offset - relation of this offset with spectrometer offset
795
* Analysis of exclusive events in SIDIS - Samip
796
** Shown is a look at the first kaon events in exclusive limit of SIDIS data
797
** Ongoing work on implementing coincidence time into tree
798
* Discussion of run plan, and in particular possible low Q2/low energy
799
** Assume that kaon low Q2=0.4 already included - have kinematics with specified beam energies, if needed
800
** 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
801
** Garth will put this together in a draft email
802
803 12 Richard Trotta
----
804
805 111 Richard Trotta
h3. March 29, 2018
806 12 Richard Trotta
807 35 Stephen Kay
*Links to talks->* "Richard, ":https://redmine.jlab.org/documents/16 "Samip":https://redmine.jlab.org/documents/27
808 13 Richard Trotta
809 35 Stephen Kay
* Details of adding points to fall run plan - will be ready sooner, likely in week of 4/1 (Garth, Samip, Tanja)
810
* Luminosity scans (Ryan, Andres, Richard, Pete)
811
* Macros, SIDIS analysis (Hem, Anashe)
812
* Elastic data (TBD)
813
814 14 Richard Trotta
----
815 18 Richard Trotta
816 111 Richard Trotta
h3. February 22, 2018
817 18 Richard Trotta
818 35 Stephen Kay
*Links to talks->* "Andres":https://redmine.jlab.org/documents/19
819 18 Richard Trotta
820 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.
821
* Brief description of Samip's work - working on coincidence timing decoding with JLab staff and re-optimization of kinematics
822
* Discussion of Richard's slides on run plan kinematics and preparations -
823
** 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
824
** 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
825
** for each setting will need 1-2 shifts for calibrations - need to negotiate with other experiments in run group
826
** kinematics plots W-Q2 show that still need to do some optimization
827
** run sheets: include raster size, update coincidence count labeling, and carbon target labeling
828
* Discussion of next meeting. Garth at JLab 8-16 March - might have meeting during that time.
829 26 Richard Trotta
830 35 Stephen Kay
* *Action Items:*
831
** Post slides/notes from this meeting and procedure to set up hcana in Redmine (Tanja)
832
** Update run sheet and kinematic optimization for W/Q2 (Garth)
833
** Circulate elastic calculations for kinematic settings (Samip)
834
** Continue investigation of elastic data and run plan kinematics (Andres/Richard)
835
** Test software installation instructions (Pete)
836
** 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) 
837 32 Stephen Kay
838
----