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Kaon LT Meetings » History » Version 204

Richard Trotta, 03/31/2021 01:59 AM

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h1. *Kaon LT Meetings*
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5 96 Stephen Kay
Kaon LT collaboration analysis meetings. Please add your talk to the meeting ahead of time. Add the newest meeting to the top of the list!
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7 95 Stephen Kay
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8 113 Richard Trotta
9 1 Richard Trotta
h2. 2021 Meetings
10 200 Richard Trotta
11 203 Richard Trotta
h3. March 31, 2021
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* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_3_17_21.pdf
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** Outline of Brad's email and showing how explicit prescale calculations can be done (still a work in progress).
15 204 Richard Trotta
** Deadline for a Pass2's root branch list is the next mini-meeting (4/7/21)
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Next meeting April 14th @ 4:30 EDT
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21 201 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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26 202 Stephen Kay
Next meeting March 31st @ 4:30 EDT
27 201 Stephen Kay
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30 200 Richard Trotta
h3. March 17, 2021
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* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_3_17_21.pdf
33 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.
34 202 Stephen Kay
* Mini meeting March 24th @ 4:30 EDT
35 201 Stephen Kay
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Next meeting March 31st @ 4:30 EDT
37 200 Richard Trotta
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40 199 Richard Trotta
h3. March 3, 2021
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* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_3_3_21.pdf
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** I found an issue with the replay scripts used where the EDTM was not being properly registered. There is a discrepancy between two replay scripts depending on what the Decode_master is set to (i.e. ALL_events vs ALL_events_NO_EDTM). 
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** The explicit calculation of the prescale has hit a snag because of the differences between 6 GeV and 12 GeV. I contacted Mark Jones, who explained there are significant differences in the ADC gate between the two eras (which my own findings confirmed). I have contacted Brad for further input.
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Next meeting March 17th @ 4:30 EST
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51 196 Richard Trotta
h3. February 17, 2021
52 194 Richard Trotta
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* Richard
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** Tried to remove some cumbersome elements to the analysis scripts without success. A few runs were added to a well behaved set of lumi runs with good consistency.
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56 198 Nathan Heinrich
* Nathan
57
** Presented an update on the Hodoscope Calibrations: https://redmine.jlab.org/attachments/download/1196/HodoscopeUpdate_2021Feb17.pdf
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59 194 Richard Trotta
Next meeting March 3rd @ 4:30 EST
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63 196 Richard Trotta
h3. February 3, 2021
64 193 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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72 196 Richard Trotta
h3. January 20, 2021
73 191 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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78 191 Richard Trotta
Next meeting February 3rd @ 4:30 EST
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82 196 Richard Trotta
h3. January 6, 2021
83 190 Richard Trotta
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* "Richard":https://redmine.jlab.org/attachments/download/1153/KaonLTMeeting1_6_21.pdf
85 186 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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89 191 Richard Trotta
Next meeting January 20th @ 4:30 EST
90 186 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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111 180 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.
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* "Richard":https://redmine.jlab.org/attachments/download/1101/KaonLTMeeting11_18_20.pdf
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** Scaler analysis matches Carlos' code now. Overall significant improvements were made through some cut adjustments and incorrect variable definitions.
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* Stephen
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** Updated the hallc_replay_lt with parameter files for all coin peaks.
121 180 Richard Trotta
* Vijay
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** 
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124 184 Richard Trotta
Next meeting December 2nd @ 4:30 EST
125 180 Richard Trotta
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128 178 Richard Trotta
h3. November 4, 2020
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* Ali
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** 
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* "Richard":https://redmine.jlab.org/attachments/download/1092/KaonLTMeeting11_4_20.pdf
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** Scaler analysis is getting closer to an answer. An in-depth comparison of Carlos and Richard's analysis shows inconsistencies between the two.
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* Stephen
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** 
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* Vijay
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** 
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Next meeting November 18th @ 4:30 EST
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144 170 Richard Trotta
h3. October 28, 2020
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* Ali
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** Went over some of his tracking procedures for the report file implementation
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* "Richard":https://redmine.jlab.org/attachments/download/1091/KaonLTMeeting10_28_20.pdf
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** Luminosity analysis continues. There are still some issues but things have improved a bit.
150 171 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
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** Dry run for Mark's hallc meeting tomorrow (10/29)
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Next meeting November 4th @ 4:30 EST
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159 164 Richard Trotta
h3. October 14, 2020
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* Ali
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** Working through the REPORT_FILES template to get everything working and outputting proper information.
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* "Richard":https://redmine.jlab.org/attachments/download/1085/KaonLTMeeting_10_14_20.pdf
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** Updates on lumi scans. There are many issues from Scalers to Tracking that need to be resolved.
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* Stephen
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** He has included a demo for using the python analysis script in the README.
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168 170 Richard Trotta
Next meeting October 28th @ 4:30 EST
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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.
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Next meeting October 14th @ 4:30 EST
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185 149 Richard Trotta
h3. September 9, 2020
186 156 Richard Trotta
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* Richard
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** Still working on run list, GUI checks
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* "Stephen":https://redmine.jlab.org/issues/567
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** New slim replay scripts and full replay scripts updated
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* Ali
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** Him and Stephen found an issue (already aware of) with zeros in the parameter files using Mark's hcana changes
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** Need to be vigilant of crashed replays because this is probably the issue
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* Vijay
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** Nearly finished with HGcer calibrations
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197 161 Richard Trotta
Next meeting September 23rd @ 4:30 EST
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h3. August 26, 2020
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*Links to talks->* "Ali":https://redmine.jlab.org/issues/483 "Vijay":https://redmine.jlab.org/issues/479
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* Richard
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** New tasks were created based on the previous discussions on objectives going forward. In the process of checking run sheets against the run list and camera/EPICS.
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* Stephen
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** Updated on RF times. There were a few issues with some runs, but overall most are finished.
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* Ali
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** Hodoscope calibrations look similar to before. There is still the issue of the double bands in the time walk. This is ok because of the wide windows we still have. (See "hodoscope calibration section":https://redmine.jlab.org/projects/kltexp/wiki/Analysis_Tasks#Calibrations-Mid-to-Late-August-2020)
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* Vijay
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** Updated the SHMS HGCher analysis. The calibrations are coming along, but a little more work needs to be finished up.
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214 156 Richard Trotta
Next meeting September 9 @ 5 EST
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216 149 Richard Trotta
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h3. July 29, 2020
219 147 Stephen Kay
220 148 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
221 146 Stephen Kay
222 155 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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227 150 Richard Trotta
Next meeting August 26th @ 4:30 EST
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231 139 Richard Trotta
h3. July 8, 2020
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233 139 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
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235 140 Richard Trotta
Next meeting July 29 @ 4:30 EST
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239 132 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
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Next meeting July 8th @ 4:30 EST
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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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Next meeting June 24th @ 4:30 EST
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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
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258 127 Richard Trotta
Next meeting June 9th @ 4:30 EST
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262 118 Stephen Kay
h3. May 13, 2020
263 124 Richard Trotta
264 138 Stephen Kay
*Links to talks->* "Stephen":https://redmine.jlab.org/attachments/download/993/KaonLT_Meeting_13_05_20.pdf - Python analysis scripts "Richard":https://redmine.jlab.org/attachments/download/998/KaonLTMeeting_5_13_20.pdf "Ali":https://redmine.jlab.org/attachments/download/997/KaonLT_Meeting_May_13.pdf "Vijay":https://redmine.jlab.org/attachments/download/999/Vijay_13_May_20.pdf
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266 127 Richard Trotta
Next meeting May 27th @ 4:30 EST
267 118 Stephen Kay
268 121 Richard Trotta
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h3. April 29, 2020
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272 138 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
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274 127 Richard Trotta
Next meeting May 13th @ 4:30 EST
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278 111 Richard Trotta
h3. April 15, 2020
279 104 Richard Trotta
280 102 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/attachments/download/977/KaonLTMeeting_4_15_20.pdf
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282 127 Richard Trotta
Next meeting April 29th @ 4:30 EST
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284 102 Richard Trotta
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285 95 Stephen Kay
286 111 Richard Trotta
h3. April 1, 2020
287 100 Stephen Kay
288 138 Stephen Kay
*Links to talks->* "Stephen":https://redmine.jlab.org/attachments/download/949/KaonLT_Meeting_01_04_20.pdf - RF timing "Richard":https://redmine.jlab.org/attachments/download/948/KaonLTMeeting_4_1_20.pdf
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290 127 Richard Trotta
Next meeting April 15th @  4:30 EST
291 101 Richard Trotta
292 41 Stephen Kay
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293 93 Richard Trotta
294 111 Richard Trotta
h3. March 18, 2020
295 93 Richard Trotta
296
*Links to talks->* "Richard's EIC Temple Draft 2":https://redmine.jlab.org/attachments/download/942/DRAFT2_mesonSF_EIC_Temple.pdf
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298 127 Richard Trotta
Next meeting April 1st @  4:30 EST
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302 111 Richard Trotta
h3. March 11, 2020
303 92 Richard Trotta
304 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
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306 127 Richard Trotta
Next meeting March 18th @  4:30 EST
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310 111 Richard Trotta
h3. Feb 26, 2020
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* Peter's changes to hcana should be coming soon. Richard will check with Mark when he is down there for an update.
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* Need to incorporate the latest "BCM updates":https://hallcweb.jlab.org/doc-public/ShowDocument?docid=1034 from Dave Mack.
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* Richard should look at the luminosity scalar analysis before and after the BCM changes once he gets his script working again.
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**  He is checking with Mark about this while he is down in jlab. 
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317 127 Richard Trotta
Next meeting March 11th @  4:30 EST
318 86 Richard Trotta
319 1 Richard Trotta
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320 86 Richard Trotta
321 111 Richard Trotta
h3. Feb 10, 2020 
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323 127 Richard Trotta
Next meeting Feb 26th @ 11 am EST
324 86 Richard Trotta
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327 111 Richard Trotta
h3. Jan 22, 2020
328 83 Richard Trotta
329
*Links to talks->* "Richard's Hall C Winter Talk Draft 1":https://redmine.jlab.org/attachments/download/937/KaonLTHallC_WinterTalk2020_Draft1.pdf
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331 127 Richard Trotta
Next meeting Feb 10 @ 11 am EST
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333 1 Richard Trotta
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335 111 Richard Trotta
h3. Jan 15,2020
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*Links to talks->* "Richard's Hall C Winter Talk Outline":https://redmine.jlab.org/attachments/download/936/KaonLTHallC_WinterTalk2020.pdf
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Next meeting Jan 22 @ 11 am EST
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343 111 Richard Trotta
h3. Jan 8,2020
344 78 Richard Trotta
345 1 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/76
346 79 Richard Trotta
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* Richard
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** PID efficiency script is coming together
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*** Tighter cuts and cuts on timing, beta, etc. will be needed for cleaner electron cuts
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*** 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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355 113 Richard Trotta
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h2. 2019 Meetings
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358 141 Stephen Kay
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h3. Dec 17,2019
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Reminder: Mark Jones' commissioning analysis meetings are bi-weekly and announced by Mark
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* Stephen
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** Number of passes finished for HMS calorimeter
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*** Still wiggles in all passes
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** Finished his report on calibrations, "DC and Calorimeters":https://redmine.jlab.org/documents/74
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** 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
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*** CUA will be putting together a similar list
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371 77 Richard Trotta
* Richard
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** Fixed one error issue with SHMS calorimeter calibration code (discussed Dec 10th meeting), but still have one error
373
** PID efficiency script plots are complete, but still some questions he needs to work out before a final version
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*** Eventually need to include tracking into PID efficiencies
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** Pete brought up the question for a number of multi-hits we are getting
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*** (Dead Time)+(Trigger efficiency)-EDTM
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Next meeting will be after the break; Wednesday, January 8th at 3 pm EST
379 77 Richard Trotta
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381 72 Richard Trotta
382 111 Richard Trotta
h3. Dec 10,2019
383 72 Richard Trotta
384 74 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/73
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* Garth and Stephen were in the most recent SIDIS meeting
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** Wit had lots of hcana changes but they seem to be critical to our work 
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*** Changes such as new detector classes
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** Hopefully Wit will present these in the next commissioning meeting
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391 77 Richard Trotta
* Stephen improved wiggles but still prevalent
392 74 Richard Trotta
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* Richard finished HGCer calibrations, he concluded that the online parameters are sufficient
394
** He also has been looking at SHMS calorimeter calibrations but has had issues running the scripts. Most likely a pathing issue.
395
** The "tasks":https://redmine.jlab.org/projects/kltexp/wiki/Analysis_Tasks page has been updated with a section for efficiencies. 
396
*** A PID efficiency script is currently being developed and hopefully should have some plots for our next meeting.
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* Next meeting will be December 17th at 3 pm EST.
399 74 Richard Trotta
400 75 Richard Trotta
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401 74 Richard Trotta
402 111 Richard Trotta
h3. Nov 26,2019
403 71 Richard Trotta
404
*Links to talks->* "Richard":https://redmine.jlab.org/issues/480
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* Stephen
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** DC SHMS, small-angle has poor performance
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*** Tighter cuts or PID (currently only looks for electrons)
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** Vardan said calorimeter wiggles are an ongoing issue with no current solution
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* Richard
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** The calibrations are nearing completion with only the HG Cherenkov and SHMS calorimeter yet to be finished. There are also smaller issues with some DC and HMS calorimeter runs.
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*** Richard will pick up looking at the HGCer calibrations from Vijay's scripts. 
414
*** Richard will also be looking at the SHMS calorimeter and with the suggestion of getting some negatively polarized SHMS runs from Hem.
415
** The HMS Cherenkov is finished with the conclusion that the calibrations from the online runs are good
416
** We can begin looking forward towards efficiencies. 
417
*** Garth suggested that looking at PID may be an advantageous first steps. Precise definitions of these PIDs will need to be logged.
418
*** Clear notes on efficiencies steps will be needed. They will need to be redefined multiple times in multiple ways. 
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* Hem
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** Has been looking at the calorimeter as well. 
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** 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
427 1 Richard Trotta
428 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
431
** Finished up TDC cut paper going through the procedure (found "here":https://redmine.jlab.org/issues/500)
432
** Needed to add Carlos pre-trigger designs to an appendix for the paper which clarifies the introduction section
433
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* Stephen
435
** Issues with DC calibration for only a few runs during each run period
436
** "wiggles" in HMS calorimeter calibrations for some runs
437
*** few runs where HMS cal totally failed (which was dependent on initial parameters)
438
*** Spring looked worse than the rest (surprisingly), but this may be because online calibration wasn't great
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441 68 Richard Trotta
442 111 Richard Trotta
h3. Nov 5,2019
443 68 Richard Trotta
444
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500
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* Timing update (Stephen)
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** Reference times between Richard and Stephen are very similar and the GitHub is updated accordingly
448
** Richard is going to add the trigger time cuts once the fall runs are finished (by end of week)
449
** First pass of detector reference time parameter files finished
450 1 Richard Trotta
451 68 Richard Trotta
* Peter's hcana code (Richard and Stephen)
452
** 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
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*** Richard has emailed Peter about the issue with no response yet (follow-up soon)
454
** 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.
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* Calibrations were decided to be done once per shift
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* Next meeting schedule...
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** Small meetings Nov 12 and Nov 19 (at 3pm EST) so Richard and Stephen can iron out the timing and calibrations
460
** November 26 (at 3pm EST) will be a larger meeting. 
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*** This is the rough deadline we made for finishing up calibrations. 
462
*** 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!!
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h3. Oct 22,2019
467 62 Richard Trotta
468 64 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
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470 65 Richard Trotta
* SHMS Reference Time Amplitude Cuts(Stephen)
471
** Extra peaks in HG from cross-talk and "ghost-bands" due to ADC screw up
472
*** cuts applied on SHMS ADC ref time amplitude (greater than zero) done before any further event selection and histogram filling
473
** This is a temporary fix to "ghost-bands" and cross talk
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*** Although for HG there is still a small peak. The hodoscope is fine.
475
** The time window is easier to set now.
476
** DC has been fine (since it uses TDC)
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*** DC calibrations should be good to complete, other detectors need more fixes (i.e. the remaining "ghost-band")
478
** Hodoscope still bad but this might be because of that "ghost-band", needs to be further investigated
479
480 1 Richard Trotta
* Peter's hcana fixes for reference time (Richard)
481 67 Richard Trotta
** Peter implemented changes to hcana
482
** Two major issues...
483 1 Richard Trotta
## Amplitude goes to null and integral is low or negative which causes a rate-dependent efficiency. 
484 67 Richard Trotta
*** Peter has used the average pulse value acquired over a large sample of runs for each detector. 
485 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)
486 67 Richard Trotta
*** Peter created a routine to find the best offset by means of matching TDC and ADC
487
** Richard has been checking for bugs in the code. 
488
*** It seems to be ready to implement, Richard emailed Peter for confirmation on the implementation in our group directory
489
490 1 Richard Trotta
* Calibration of HMS detectors when the timing is agreed upon by Stephen and Richard.
491 67 Richard Trotta
** Besides hodoscope which still has an issue with the script
492 65 Richard Trotta
** Stephen and Richard are having a meeting late next week to determine time window values
493 62 Richard Trotta
*** These will be relatively final, but on the wider side if adjustments need to be made in the future
494
495 1 Richard Trotta
-----
496 61 Richard Trotta
497 111 Richard Trotta
h3. Sep 24,2019
498 61 Richard Trotta
499
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
500 1 Richard Trotta
501 61 Richard Trotta
-----
502 1 Richard Trotta
503 111 Richard Trotta
h3. Sep 10,2019
504 59 Vijay Kumar
505
*Links to talks->* "Stephen":https://redmine.jlab.org/documents/69 "Ali":https://redmine.jlab.org/documents/72 "Richard":https://redmine.jlab.org/issues/500
506 1 Richard Trotta
507
-----
508 55 Stephen Kay
509 111 Richard Trotta
h3. August 26, 2019
510 55 Stephen Kay
511
*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
512 1 Richard Trotta
513 54 Richard Trotta
----
514
515 111 Richard Trotta
h3. June 21, 2019
516 54 Richard Trotta
517 1 Richard Trotta
*Links to talks->* "Hallc Talk Outline":https://redmine.jlab.org/documents/60 
518 54 Richard Trotta
519 42 Stephen Kay
----
520
521 111 Richard Trotta
h3. June 14, 2019
522 1 Richard Trotta
523 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
524 42 Stephen Kay
525
526 35 Stephen Kay
----
527 1 Richard Trotta
528 111 Richard Trotta
h3. June 4, 2019
529 36 Vijay Kumar
530 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
531 35 Stephen Kay
532 1 Richard Trotta
533 35 Stephen Kay
----
534 1 Richard Trotta
535 111 Richard Trotta
h3. May 21, 2019
536 1 Richard Trotta
537
*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
538 35 Stephen Kay
539
----
540 1 Richard Trotta
541 111 Richard Trotta
h3. May 14, 2019
542 1 Richard Trotta
543 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
544 1 Richard Trotta
545 35 Stephen Kay
----
546 1 Richard Trotta
547 111 Richard Trotta
h3. April 30, 2019
548 1 Richard Trotta
549
*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
550 35 Stephen Kay
551 1 Richard Trotta
----
552
553
h3. February 4, 2019
554
555
*Links to talks->* "Richard":https://redmine.jlab.org/documents/43 "Stephen":https://redmine.jlab.org/documents/44
556
557
----
558 113 Richard Trotta
559 112 Richard Trotta
h2. 2018 Meetings
560 141 Stephen Kay
561
----
562 111 Richard Trotta
563
h3. August 21, 2018
564
565 1 Richard Trotta
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
566 35 Stephen Kay
567 1 Richard Trotta
----
568 35 Stephen Kay
569 111 Richard Trotta
h3. August 8, 2018
570 35 Stephen Kay
571
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
572 1 Richard Trotta
573
----
574 35 Stephen Kay
575 111 Richard Trotta
h3. August 3, 2018
576 1 Richard Trotta
577 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383
578
*Links to talks->*
579 1 Richard Trotta
580 35 Stephen Kay
----
581 1 Richard Trotta
582 111 Richard Trotta
h3. July 11, 2018
583 1 Richard Trotta
584 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383 #384
585 1 Richard Trotta
586 35 Stephen Kay
*Action items:*
587 1 Richard Trotta
588 35 Stephen Kay
* Update run plan, e.g. add prescales (Garth)
589
* Check on details of: magnet cycling procedure, minimum angles, MCC fringe field steering, beam energy measurements, optics checks (Tanja)
590
* Identify additional run coordinators (Tanja)
591
* Encourage collaborators to take shifts, e.g. FIU (Pete)
592
* Draft email about shifts etc. to collaboration (Tanja)
593
* Develop diagnostic scripts and kaonLT specific (Richard, Ryan)
594
* Continue documentation development, e.g. checklist, shift taker instructions, HowTo or link to generic Hall C HowTo, task list, web page (Richard, Garth)
595 1 Richard Trotta
596 35 Stephen Kay
*Discussions:*
597
598
* 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
599
* HGC: waiting for re-installation
600
* Trigger checkout: main items to keep in mind: fADC thresholds, timing HMS/SHMS - leading arm, possible rate limitations
601 1 Richard Trotta
* Shifts
602
* Diagnostics scripts and documentation
603
* Personnel schedules
604
605
----
606
607 111 Richard Trotta
h3. June 28, 2018
608 1 Richard Trotta
609
*Links to talks->* "Richard":https://redmine.jlab.org/documents/34
610
611
*Action Items:*
612
613
* Develop and post shift schedule. Send out request. Find out who is KAONLT liaison (Tanja)
614
* Contact potential run coordinators. (Tanja)
615
* Aerogel tray exchange for start of experiment and coordination of future exchanges (Vladimir)
616
* Update runplan and prepare documents needed for shift crew, e.g. run sheets (Garth)
617
* Set up a web page to collect and link from Redmine - How-To documents, initial calibrations, etc. (Garth, Richard)
618
* 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)
619
* Develop trigger/detector checkout plan (Tanja, initial draft)
620
** Are all experts available at run start, experts needed: coincidence timing , Harp Scans, BCM calibrations, ...
621
* 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)
622
* Find out if all aerogel trays needed for experiment can be stored inside Hall C to avoid having to open truck ramp (Vladimir)
623
624
*Analysis Updates:*
625
626
* Ryan 
627
** resolving differences between his analysis and Richard's
628
629
* Richard
630
** 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
631
** 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.
632
633
----
634
635 111 Richard Trotta
h3. May 31, 2018
636 1 Richard Trotta
637 35 Stephen Kay
*Links to talks->* "Samip":https://redmine.jlab.org/documents/30
638 1 Richard Trotta
639 35 Stephen Kay
----
640 1 Richard Trotta
641 111 Richard Trotta
h3. May 17, 2018 
642 1 Richard Trotta
643 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
644 2 Richard Trotta
645 35 Stephen Kay
* Luminosity scans (Richard, Ryan)
646 111 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
647 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
648
** discussion about pre-scale factors
649 1 Richard Trotta
650 35 Stephen Kay
* Discussion about Richard's script extracting and printing information from report files and trees including histograms
651
** Add option for looking at yields with cuts on cointime, target window, and missing mass
652
** Add option to look at real peak vs. background level
653 1 Richard Trotta
654 35 Stephen Kay
* H(e,e'p) kinematics investigation for fall run (Samip)
655
** 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
656 1 Richard Trotta
657 35 Stephen Kay
* *Action Items*
658
** Luminosity scans at low rates from January (Richard)
659
** Luminosity scans from April with corrected efficiencies, e.d. DT (Ryan)
660
** H(e,e'p) and H(e,e') kinematics for upcoming Kaon LT run (Samip)
661
** Kaon LT detailed run plan (Garth, Pete, Tanja)
662
** Preparations, e.g. report files, diagnostic histograms and real time monitoring, shift worker instructions, optimization of trees (all)
663 1 Richard Trotta
664
----
665
666 111 Richard Trotta
h3. May 10, 2018
667 35 Stephen Kay
668 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
669 35 Stephen Kay
670
* Luminosity Scans January 2018 (Richard)
671
** Tracking-based analysis for Runs 1415-1423, .. for now focus on HMS, typical HMS S1X rates are <
672
** Cuts applied: PID for electrons (Cer, Cal), acceptance (delta)
673
** Efficiency calculation was investigated in detail and applied using scalers from trees
674
** Results for carbon (normalized to 30uA) show large variation - need to understand
675
** *Next steps:*
676
*** Double check calculation of computer lifetime, look for differences in TRIG and PRETRIG scalers
677
*** Check stability of pre-scale (Ryan saw changes within runs)
678
*** Check if detector calibrations for runs are implemented correctly
679
*** Analyze with Ryan's cuts
680 1 Richard Trotta
681 35 Stephen Kay
* Luminosity Scans April 2018 (Ryan)
682
** Confirms Richard's earlier finding that scaler-based analysis is not reliable and that it's best to analyze event-by-event
683
** Tracking-based analysis for runs 2073-2095
684
** Cuts applied: PID for electrons (TOF, Cal, Chi2), acceptance (delta and angles), BCM4a
685
** Included most recent detector calibrations in replay of these runs
686
** Efficiencies from report file mainly, may need to update tracking efficiency implementation
687
** Found that calculations of computer deadtime requires different set of scalers for runs from January to those from April 2018
688
** Results show carbon yields consistent with unity within error (0.5% error bars), and boiling for hydrogen and deuterium
689
** *Next steps:*
690 5 Richard Trotta
*** Check tracking efficiency
691 35 Stephen Kay
692
* *Global comments on Luminosity Scans (so far)*
693 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.
694 35 Stephen Kay
** Efficiencies in report files need to be updated, e.g. CPU deadtime (Richard)
695
** Check if BCM4a is the one closest to the target - get a map of the hall (Richard, Ryan)
696
** Uncertainties on current
697
** Detector calibrations
698 1 Richard Trotta
** HMS vs. SHMS
699 35 Stephen Kay
700
* eK+ coincidence time from SIDIS Spring 2018 run (Samip)
701
** Worked with Mark Jones on coincidence time calculation - now available in hcana (see Samip's 10 May 2018 email for more details)
702
** runs used in this analysis: 3423 with Q2=3.1 GeV2 and W=2.78 GeV
703
** Coincidence time spectrum shows peak separations >2 ns corresponding to different accelerator frequency
704
** Missing mass spectra: Kaon peak clearly visible, also see pions even after cuts
705
** Found that pions appear localized in phase space - seems to be due to end point in kinematic phase space
706 1 Richard Trotta
** *Next steps:*
707 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)
708 35 Stephen Kay
709
* Yield normalized ratios from SIDIS (Hem)
710
** Yield ratios of data to MC match well in shape, but normalization seems not quite right
711
** *Next steps:*
712 4 Richard Trotta
*** Check if efficiencies, currents, run time etc. are taken into account correctly
713
714
----
715 35 Stephen Kay
716 111 Richard Trotta
h3. April 26, 2018
717 4 Richard Trotta
718 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
719 4 Richard Trotta
720 35 Stephen Kay
* Discussion luminosity scan analysis (earlier scan) - Richard
721
** 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
722
** Notes on efficiencies in report file:
723
*** DT (EDTM) is not electronic deadtime. Instead use for now 50ns* trigger rate for HMS and 100ns* trigger rate for SHMS
724
*** Cherenkov efficiency seems low (check if that is due to PID, thresholds, pi/e, etc)
725
*** Tracking efficiency needs to be checked
726
*** 3/4 trigger efficiency seems ok
727
* Discussion luminosity scan analysis (later scan) - Ryan
728
** Fewer carbon runs than earlier scan
729
** Shown is a tracking-based analysis using data from the ROOT trees
730 111 Richard Trotta
** First results for carbon, LH3, and LD2, but efficiencies need to be checked
731 35 Stephen Kay
* SIDIS analysis - Hem
732
** Shown is a data/MC comparison for different kinematic settings. Agreement in shape is very good. Normalization has yet to be applied.
733
** Discussion about agreement in z and apparent offset - relation of this offset with spectrometer offset
734
* Analysis of exclusive events in SIDIS - Samip
735
** Shown is a look at the first kaon events in exclusive limit of SIDIS data
736
** Ongoing work on implementing coincidence time into tree
737
* Discussion of run plan, and in particular possible low Q2/low energy
738
** Assume that kaon low Q2=0.4 already included - have kinematics with specified beam energies, if needed
739
** 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
740
** Garth will put this together in a draft email
741
742 12 Richard Trotta
----
743
744 111 Richard Trotta
h3. March 29, 2018
745 12 Richard Trotta
746 35 Stephen Kay
*Links to talks->* "Richard, ":https://redmine.jlab.org/documents/16 "Samip":https://redmine.jlab.org/documents/27
747 13 Richard Trotta
748 35 Stephen Kay
* Details of adding points to fall run plan - will be ready sooner, likely in week of 4/1 (Garth, Samip, Tanja)
749
* Luminosity scans (Ryan, Andres, Richard, Pete)
750
* Macros, SIDIS analysis (Hem, Anashe)
751
* Elastic data (TBD)
752
753 14 Richard Trotta
----
754 18 Richard Trotta
755 111 Richard Trotta
h3. February 22, 2018
756 18 Richard Trotta
757 35 Stephen Kay
*Links to talks->* "Andres":https://redmine.jlab.org/documents/19
758 18 Richard Trotta
759 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.
760
* Brief description of Samip's work - working on coincidence timing decoding with JLab staff and re-optimization of kinematics
761
* Discussion of Richard's slides on run plan kinematics and preparations -
762
** 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
763
** 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
764
** for each setting will need 1-2 shifts for calibrations - need to negotiate with other experiments in run group
765
** kinematics plots W-Q2 show that still need to do some optimization
766
** run sheets: include raster size, update coincidence count labeling, and carbon target labeling
767
* Discussion of next meeting. Garth at JLab 8-16 March - might have meeting during that time.
768 26 Richard Trotta
769 35 Stephen Kay
* *Action Items:*
770
** Post slides/notes from this meeting and procedure to set up hcana in Redmine (Tanja)
771
** Update run sheet and kinematic optimization for W/Q2 (Garth)
772
** Circulate elastic calculations for kinematic settings (Samip)
773
** Continue investigation of elastic data and run plan kinematics (Andres/Richard)
774
** Test software installation instructions (Pete)
775
** 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) 
776 32 Stephen Kay
777
----