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Kaon LT Meetings » History » Version 201

Stephen Kay, 03/25/2021 01:26 AM

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
11 201 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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Next meeting March 31st @ 4:30 EST
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20 200 Richard Trotta
h3. March 17, 2021
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* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_3_17_21.pdf
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** I have re-run the carbon lumi runs with the changes to the replay events (i.e. All_events_NO_EDTM). The results look pretty good (within a few percent). There are still some trends I need to investigate for certain runs and I need to do the analysis for the pionLT carbon lumi data.
24 1 Richard Trotta
25 201 Stephen Kay
Next meeting March 31st @ 4:30 EDT
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Mini meeting - March 24th @ 4:30 EDT
27 200 Richard Trotta
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29 194 Richard Trotta
30 199 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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41 196 Richard Trotta
h3. February 17, 2021
42 194 Richard Trotta
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* Richard
44
** 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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46 198 Nathan Heinrich
* Nathan
47
** Presented an update on the Hodoscope Calibrations: https://redmine.jlab.org/attachments/download/1196/HodoscopeUpdate_2021Feb17.pdf
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49 194 Richard Trotta
Next meeting March 3rd @ 4:30 EST
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53 196 Richard Trotta
h3. February 3, 2021
54 193 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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62 196 Richard Trotta
h3. January 20, 2021
63 191 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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67 1 Richard Trotta
68 191 Richard Trotta
Next meeting February 3rd @ 4:30 EST
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72 196 Richard Trotta
h3. January 6, 2021
73 190 Richard Trotta
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* "Richard":https://redmine.jlab.org/attachments/download/1153/KaonLTMeeting1_6_21.pdf
75 186 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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79 191 Richard Trotta
Next meeting January 20th @ 4:30 EST
80 186 Richard Trotta
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h2. 2020 Meetings
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86 185 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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101 180 Richard Trotta
h3. November 18, 2020
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* Ali
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** 
105 183 Richard Trotta
* "Carlos":https://redmine.jlab.org/attachments/download/1103/LiveTime_Study_cyero.pdf
106 181 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.
107 180 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
110 182 Richard Trotta
** Updated the hallc_replay_lt with parameter files for all coin peaks.
111 180 Richard Trotta
* Vijay
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** 
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114 184 Richard Trotta
Next meeting December 2nd @ 4:30 EST
115 180 Richard Trotta
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118 178 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
123 179 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.
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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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132 141 Stephen Kay
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134 170 Richard Trotta
h3. October 28, 2020
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* Ali
137 177 Richard Trotta
** Went over some of his tracking procedures for the report file implementation
138 172 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1091/KaonLTMeeting10_28_20.pdf
139 173 Richard Trotta
** Luminosity analysis continues. There are still some issues but things have improved a bit.
140 171 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
143 176 Richard Trotta
** Dry run for Mark's hallc meeting tomorrow (10/29)
144 170 Richard Trotta
145 177 Richard Trotta
Next meeting November 4th @ 4:30 EST
146 170 Richard Trotta
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149 164 Richard Trotta
h3. October 14, 2020
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151 168 Richard Trotta
* Ali
152 164 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.
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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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158 170 Richard Trotta
Next meeting October 28th @ 4:30 EST
159 164 Richard Trotta
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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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171 163 Richard Trotta
Next meeting October 14th @ 4:30 EST
172 161 Richard Trotta
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175 149 Richard Trotta
h3. September 9, 2020
176 156 Richard Trotta
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* Richard
178 157 Richard Trotta
** Still working on run list, GUI checks
179 156 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
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* Vijay
185 156 Richard Trotta
** Nearly finished with HGcer calibrations
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187 161 Richard Trotta
Next meeting September 23rd @ 4:30 EST
188 156 Richard Trotta
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h3. August 26, 2020
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193 149 Richard Trotta
*Links to talks->* "Ali":https://redmine.jlab.org/issues/483 "Vijay":https://redmine.jlab.org/issues/479
194 154 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
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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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204 156 Richard Trotta
Next meeting September 9 @ 5 EST
205 150 Richard Trotta
206 149 Richard Trotta
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208 144 Richard Trotta
h3. July 29, 2020
209 147 Stephen Kay
210 148 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
211 146 Stephen Kay
212 155 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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217 150 Richard Trotta
Next meeting August 26th @ 4:30 EST
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221 139 Richard Trotta
h3. July 8, 2020
222 1 Richard Trotta
223 139 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
224 150 Richard Trotta
225 140 Richard Trotta
Next meeting July 29 @ 4:30 EST
226 139 Richard Trotta
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229 132 Richard Trotta
h3. June 24, 2020
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231 143 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
232 137 Richard Trotta
Next meeting July 8th @ 4:30 EST
233 132 Richard Trotta
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236 129 Richard Trotta
h3. June 9, 2020
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238 135 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
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240 131 Richard Trotta
Next meeting June 24th @ 4:30 EST
241 129 Richard Trotta
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244 125 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
247 128 Richard Trotta
248 127 Richard Trotta
Next meeting June 9th @ 4:30 EST
249 125 Richard Trotta
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252 118 Stephen Kay
h3. May 13, 2020
253 124 Richard Trotta
254 138 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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256 127 Richard Trotta
Next meeting May 27th @ 4:30 EST
257 118 Stephen Kay
258 121 Richard Trotta
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260 111 Richard Trotta
h3. April 29, 2020
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262 138 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
263 106 Richard Trotta
264 127 Richard Trotta
Next meeting May 13th @ 4:30 EST
265 106 Richard Trotta
266 1 Richard Trotta
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267 106 Richard Trotta
268 111 Richard Trotta
h3. April 15, 2020
269 104 Richard Trotta
270 102 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/attachments/download/977/KaonLTMeeting_4_15_20.pdf
271 105 Richard Trotta
272 127 Richard Trotta
Next meeting April 29th @ 4:30 EST
273 1 Richard Trotta
274 102 Richard Trotta
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275 95 Stephen Kay
276 111 Richard Trotta
h3. April 1, 2020
277 100 Stephen Kay
278 138 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
279 101 Richard Trotta
280 127 Richard Trotta
Next meeting April 15th @  4:30 EST
281 101 Richard Trotta
282 41 Stephen Kay
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283 93 Richard Trotta
284 111 Richard Trotta
h3. March 18, 2020
285 93 Richard Trotta
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*Links to talks->* "Richard's EIC Temple Draft 2":https://redmine.jlab.org/attachments/download/942/DRAFT2_mesonSF_EIC_Temple.pdf
287 1 Richard Trotta
288 127 Richard Trotta
Next meeting April 1st @  4:30 EST
289 93 Richard Trotta
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291 91 Richard Trotta
292 111 Richard Trotta
h3. March 11, 2020
293 92 Richard Trotta
294 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
295 94 Richard Trotta
296 127 Richard Trotta
Next meeting March 18th @  4:30 EST
297 91 Richard Trotta
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299 88 Richard Trotta
300 111 Richard Trotta
h3. Feb 26, 2020
301 90 Richard Trotta
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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.
304 1 Richard Trotta
* 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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307 127 Richard Trotta
Next meeting March 11th @  4:30 EST
308 86 Richard Trotta
309 1 Richard Trotta
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310 86 Richard Trotta
311 111 Richard Trotta
h3. Feb 10, 2020 
312 87 Richard Trotta
313 127 Richard Trotta
Next meeting Feb 26th @ 11 am EST
314 86 Richard Trotta
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316 1 Richard Trotta
317 111 Richard Trotta
h3. Jan 22, 2020
318 83 Richard Trotta
319
*Links to talks->* "Richard's Hall C Winter Talk Draft 1":https://redmine.jlab.org/attachments/download/937/KaonLTHallC_WinterTalk2020_Draft1.pdf
320 85 Richard Trotta
321 127 Richard Trotta
Next meeting Feb 10 @ 11 am EST
322 83 Richard Trotta
323 1 Richard Trotta
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324 83 Richard Trotta
325 111 Richard Trotta
h3. Jan 15,2020
326 81 Richard Trotta
327 82 Richard Trotta
*Links to talks->* "Richard's Hall C Winter Talk Outline":https://redmine.jlab.org/attachments/download/936/KaonLTHallC_WinterTalk2020.pdf
328 81 Richard Trotta
329 127 Richard Trotta
Next meeting Jan 22 @ 11 am EST
330 81 Richard Trotta
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332 78 Richard Trotta
333 111 Richard Trotta
h3. Jan 8,2020
334 78 Richard Trotta
335 1 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/76
336 79 Richard Trotta
337 1 Richard Trotta
* 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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345 113 Richard Trotta
346 112 Richard Trotta
h2. 2019 Meetings
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348 141 Stephen Kay
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350 111 Richard Trotta
h3. Dec 17,2019
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352 77 Richard Trotta
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
357
** Finished his report on calibrations, "DC and Calorimeters":https://redmine.jlab.org/documents/74
358
** 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
359
*** CUA will be putting together a similar list
360 1 Richard Trotta
361 77 Richard Trotta
* Richard
362
** Fixed one error issue with SHMS calorimeter calibration code (discussed Dec 10th meeting), but still have one error
363
** PID efficiency script plots are complete, but still some questions he needs to work out before a final version
364
*** Eventually need to include tracking into PID efficiencies
365
** 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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368 127 Richard Trotta
Next meeting will be after the break; Wednesday, January 8th at 3 pm EST
369 77 Richard Trotta
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371 72 Richard Trotta
372 111 Richard Trotta
h3. Dec 10,2019
373 72 Richard Trotta
374 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
377
** 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
379 1 Richard Trotta
** Hopefully Wit will present these in the next commissioning meeting
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381 77 Richard Trotta
* Stephen improved wiggles but still prevalent
382 74 Richard Trotta
383
* Richard finished HGCer calibrations, he concluded that the online parameters are sufficient
384
** He also has been looking at SHMS calorimeter calibrations but has had issues running the scripts. Most likely a pathing issue.
385
** The "tasks":https://redmine.jlab.org/projects/kltexp/wiki/Analysis_Tasks page has been updated with a section for efficiencies. 
386
*** A PID efficiency script is currently being developed and hopefully should have some plots for our next meeting.
387
388 127 Richard Trotta
* Next meeting will be December 17th at 3 pm EST.
389 74 Richard Trotta
390 75 Richard Trotta
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391 74 Richard Trotta
392 111 Richard Trotta
h3. Nov 26,2019
393 71 Richard Trotta
394
*Links to talks->* "Richard":https://redmine.jlab.org/issues/480
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* Stephen
397
** DC SHMS, small-angle has poor performance
398
*** Tighter cuts or PID (currently only looks for electrons)
399
** Vardan said calorimeter wiggles are an ongoing issue with no current solution
400
401
* Richard
402 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.
403 71 Richard Trotta
*** Richard will pick up looking at the HGCer calibrations from Vijay's scripts. 
404
*** Richard will also be looking at the SHMS calorimeter and with the suggestion of getting some negatively polarized SHMS runs from Hem.
405
** The HMS Cherenkov is finished with the conclusion that the calibrations from the online runs are good
406
** We can begin looking forward towards efficiencies. 
407
*** Garth suggested that looking at PID may be an advantageous first steps. Precise definitions of these PIDs will need to be logged.
408
*** Clear notes on efficiencies steps will be needed. They will need to be redefined multiple times in multiple ways. 
409
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* Hem
411
** Has been looking at the calorimeter as well. 
412 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.  
413
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416 111 Richard Trotta
h3. Nov 19,2019
417 1 Richard Trotta
418 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
421
** Finished up TDC cut paper going through the procedure (found "here":https://redmine.jlab.org/issues/500)
422
** Needed to add Carlos pre-trigger designs to an appendix for the paper which clarifies the introduction section
423
424
* Stephen
425
** Issues with DC calibration for only a few runs during each run period
426
** "wiggles" in HMS calorimeter calibrations for some runs
427
*** few runs where HMS cal totally failed (which was dependent on initial parameters)
428
*** Spring looked worse than the rest (surprisingly), but this may be because online calibration wasn't great
429
430 2 Richard Trotta
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431 68 Richard Trotta
432 111 Richard Trotta
h3. Nov 5,2019
433 68 Richard Trotta
434
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500
435
436
* Timing update (Stephen)
437
** Reference times between Richard and Stephen are very similar and the GitHub is updated accordingly
438
** Richard is going to add the trigger time cuts once the fall runs are finished (by end of week)
439
** First pass of detector reference time parameter files finished
440 1 Richard Trotta
441 68 Richard Trotta
* Peter's hcana code (Richard and Stephen)
442
** 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
443
*** Richard has emailed Peter about the issue with no response yet (follow-up soon)
444
** 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.
445
446
* Calibrations were decided to be done once per shift
447
448
* Next meeting schedule...
449 127 Richard Trotta
** Small meetings Nov 12 and Nov 19 (at 3pm EST) so Richard and Stephen can iron out the timing and calibrations
450
** November 26 (at 3pm EST) will be a larger meeting. 
451 68 Richard Trotta
*** This is the rough deadline we made for finishing up calibrations. 
452
*** 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!!
453
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456 111 Richard Trotta
h3. Oct 22,2019
457 62 Richard Trotta
458 64 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
459 62 Richard Trotta
460 65 Richard Trotta
* SHMS Reference Time Amplitude Cuts(Stephen)
461
** Extra peaks in HG from cross-talk and "ghost-bands" due to ADC screw up
462
*** cuts applied on SHMS ADC ref time amplitude (greater than zero) done before any further event selection and histogram filling
463
** This is a temporary fix to "ghost-bands" and cross talk
464
*** Although for HG there is still a small peak. The hodoscope is fine.
465
** The time window is easier to set now.
466
** DC has been fine (since it uses TDC)
467
*** DC calibrations should be good to complete, other detectors need more fixes (i.e. the remaining "ghost-band")
468
** Hodoscope still bad but this might be because of that "ghost-band", needs to be further investigated
469
470 1 Richard Trotta
* Peter's hcana fixes for reference time (Richard)
471 67 Richard Trotta
** Peter implemented changes to hcana
472
** Two major issues...
473 1 Richard Trotta
## Amplitude goes to null and integral is low or negative which causes a rate-dependent efficiency. 
474 67 Richard Trotta
*** Peter has used the average pulse value acquired over a large sample of runs for each detector. 
475 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)
476 67 Richard Trotta
*** Peter created a routine to find the best offset by means of matching TDC and ADC
477
** Richard has been checking for bugs in the code. 
478
*** It seems to be ready to implement, Richard emailed Peter for confirmation on the implementation in our group directory
479
480 1 Richard Trotta
* Calibration of HMS detectors when the timing is agreed upon by Stephen and Richard.
481 67 Richard Trotta
** Besides hodoscope which still has an issue with the script
482 65 Richard Trotta
** Stephen and Richard are having a meeting late next week to determine time window values
483 62 Richard Trotta
*** These will be relatively final, but on the wider side if adjustments need to be made in the future
484
485 1 Richard Trotta
-----
486 61 Richard Trotta
487 111 Richard Trotta
h3. Sep 24,2019
488 61 Richard Trotta
489
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
490 1 Richard Trotta
491 61 Richard Trotta
-----
492 1 Richard Trotta
493 111 Richard Trotta
h3. Sep 10,2019
494 59 Vijay Kumar
495
*Links to talks->* "Stephen":https://redmine.jlab.org/documents/69 "Ali":https://redmine.jlab.org/documents/72 "Richard":https://redmine.jlab.org/issues/500
496 1 Richard Trotta
497
-----
498 55 Stephen Kay
499 111 Richard Trotta
h3. August 26, 2019
500 55 Stephen Kay
501
*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
502 1 Richard Trotta
503 54 Richard Trotta
----
504
505 111 Richard Trotta
h3. June 21, 2019
506 54 Richard Trotta
507 1 Richard Trotta
*Links to talks->* "Hallc Talk Outline":https://redmine.jlab.org/documents/60 
508 54 Richard Trotta
509 42 Stephen Kay
----
510
511 111 Richard Trotta
h3. June 14, 2019
512 1 Richard Trotta
513 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
514 42 Stephen Kay
515
516 35 Stephen Kay
----
517 1 Richard Trotta
518 111 Richard Trotta
h3. June 4, 2019
519 36 Vijay Kumar
520 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
521 35 Stephen Kay
522 1 Richard Trotta
523 35 Stephen Kay
----
524 1 Richard Trotta
525 111 Richard Trotta
h3. May 21, 2019
526 1 Richard Trotta
527
*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
528 35 Stephen Kay
529
----
530 1 Richard Trotta
531 111 Richard Trotta
h3. May 14, 2019
532 1 Richard Trotta
533 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
534 1 Richard Trotta
535 35 Stephen Kay
----
536 1 Richard Trotta
537 111 Richard Trotta
h3. April 30, 2019
538 1 Richard Trotta
539
*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
540 35 Stephen Kay
541 1 Richard Trotta
----
542
543
h3. February 4, 2019
544
545
*Links to talks->* "Richard":https://redmine.jlab.org/documents/43 "Stephen":https://redmine.jlab.org/documents/44
546
547
----
548 113 Richard Trotta
549 112 Richard Trotta
h2. 2018 Meetings
550 141 Stephen Kay
551
----
552 111 Richard Trotta
553
h3. August 21, 2018
554
555 1 Richard Trotta
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
556 35 Stephen Kay
557 1 Richard Trotta
----
558 35 Stephen Kay
559 111 Richard Trotta
h3. August 8, 2018
560 35 Stephen Kay
561
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
562 1 Richard Trotta
563
----
564 35 Stephen Kay
565 111 Richard Trotta
h3. August 3, 2018
566 1 Richard Trotta
567 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383
568
*Links to talks->*
569 1 Richard Trotta
570 35 Stephen Kay
----
571 1 Richard Trotta
572 111 Richard Trotta
h3. July 11, 2018
573 1 Richard Trotta
574 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383 #384
575 1 Richard Trotta
576 35 Stephen Kay
*Action items:*
577 1 Richard Trotta
578 35 Stephen Kay
* Update run plan, e.g. add prescales (Garth)
579
* Check on details of: magnet cycling procedure, minimum angles, MCC fringe field steering, beam energy measurements, optics checks (Tanja)
580
* Identify additional run coordinators (Tanja)
581
* Encourage collaborators to take shifts, e.g. FIU (Pete)
582
* Draft email about shifts etc. to collaboration (Tanja)
583
* Develop diagnostic scripts and kaonLT specific (Richard, Ryan)
584
* Continue documentation development, e.g. checklist, shift taker instructions, HowTo or link to generic Hall C HowTo, task list, web page (Richard, Garth)
585 1 Richard Trotta
586 35 Stephen Kay
*Discussions:*
587
588
* 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
589
* HGC: waiting for re-installation
590
* Trigger checkout: main items to keep in mind: fADC thresholds, timing HMS/SHMS - leading arm, possible rate limitations
591 1 Richard Trotta
* Shifts
592
* Diagnostics scripts and documentation
593
* Personnel schedules
594
595
----
596
597 111 Richard Trotta
h3. June 28, 2018
598 1 Richard Trotta
599
*Links to talks->* "Richard":https://redmine.jlab.org/documents/34
600
601
*Action Items:*
602
603
* Develop and post shift schedule. Send out request. Find out who is KAONLT liaison (Tanja)
604
* Contact potential run coordinators. (Tanja)
605
* Aerogel tray exchange for start of experiment and coordination of future exchanges (Vladimir)
606
* Update runplan and prepare documents needed for shift crew, e.g. run sheets (Garth)
607
* Set up a web page to collect and link from Redmine - How-To documents, initial calibrations, etc. (Garth, Richard)
608
* 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)
609
* Develop trigger/detector checkout plan (Tanja, initial draft)
610
** Are all experts available at run start, experts needed: coincidence timing , Harp Scans, BCM calibrations, ...
611
* 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)
612
* Find out if all aerogel trays needed for experiment can be stored inside Hall C to avoid having to open truck ramp (Vladimir)
613
614
*Analysis Updates:*
615
616
* Ryan 
617
** resolving differences between his analysis and Richard's
618
619
* Richard
620
** 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
621
** 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.
622
623
----
624
625 111 Richard Trotta
h3. May 31, 2018
626 1 Richard Trotta
627 35 Stephen Kay
*Links to talks->* "Samip":https://redmine.jlab.org/documents/30
628 1 Richard Trotta
629 35 Stephen Kay
----
630 1 Richard Trotta
631 111 Richard Trotta
h3. May 17, 2018 
632 1 Richard Trotta
633 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
634 2 Richard Trotta
635 35 Stephen Kay
* Luminosity scans (Richard, Ryan)
636 111 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
637 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
638
** discussion about pre-scale factors
639 1 Richard Trotta
640 35 Stephen Kay
* Discussion about Richard's script extracting and printing information from report files and trees including histograms
641
** Add option for looking at yields with cuts on cointime, target window, and missing mass
642
** Add option to look at real peak vs. background level
643 1 Richard Trotta
644 35 Stephen Kay
* H(e,e'p) kinematics investigation for fall run (Samip)
645
** 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
646 1 Richard Trotta
647 35 Stephen Kay
* *Action Items*
648
** Luminosity scans at low rates from January (Richard)
649
** Luminosity scans from April with corrected efficiencies, e.d. DT (Ryan)
650
** H(e,e'p) and H(e,e') kinematics for upcoming Kaon LT run (Samip)
651
** Kaon LT detailed run plan (Garth, Pete, Tanja)
652
** Preparations, e.g. report files, diagnostic histograms and real time monitoring, shift worker instructions, optimization of trees (all)
653 1 Richard Trotta
654
----
655
656 111 Richard Trotta
h3. May 10, 2018
657 35 Stephen Kay
658 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
659 35 Stephen Kay
660
* Luminosity Scans January 2018 (Richard)
661
** Tracking-based analysis for Runs 1415-1423, .. for now focus on HMS, typical HMS S1X rates are <
662
** Cuts applied: PID for electrons (Cer, Cal), acceptance (delta)
663
** Efficiency calculation was investigated in detail and applied using scalers from trees
664
** Results for carbon (normalized to 30uA) show large variation - need to understand
665
** *Next steps:*
666
*** Double check calculation of computer lifetime, look for differences in TRIG and PRETRIG scalers
667
*** Check stability of pre-scale (Ryan saw changes within runs)
668
*** Check if detector calibrations for runs are implemented correctly
669
*** Analyze with Ryan's cuts
670 1 Richard Trotta
671 35 Stephen Kay
* Luminosity Scans April 2018 (Ryan)
672
** Confirms Richard's earlier finding that scaler-based analysis is not reliable and that it's best to analyze event-by-event
673
** Tracking-based analysis for runs 2073-2095
674
** Cuts applied: PID for electrons (TOF, Cal, Chi2), acceptance (delta and angles), BCM4a
675
** Included most recent detector calibrations in replay of these runs
676
** Efficiencies from report file mainly, may need to update tracking efficiency implementation
677
** Found that calculations of computer deadtime requires different set of scalers for runs from January to those from April 2018
678
** Results show carbon yields consistent with unity within error (0.5% error bars), and boiling for hydrogen and deuterium
679
** *Next steps:*
680 5 Richard Trotta
*** Check tracking efficiency
681 35 Stephen Kay
682
* *Global comments on Luminosity Scans (so far)*
683 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.
684 35 Stephen Kay
** Efficiencies in report files need to be updated, e.g. CPU deadtime (Richard)
685
** Check if BCM4a is the one closest to the target - get a map of the hall (Richard, Ryan)
686
** Uncertainties on current
687
** Detector calibrations
688 1 Richard Trotta
** HMS vs. SHMS
689 35 Stephen Kay
690
* eK+ coincidence time from SIDIS Spring 2018 run (Samip)
691
** Worked with Mark Jones on coincidence time calculation - now available in hcana (see Samip's 10 May 2018 email for more details)
692
** runs used in this analysis: 3423 with Q2=3.1 GeV2 and W=2.78 GeV
693
** Coincidence time spectrum shows peak separations >2 ns corresponding to different accelerator frequency
694
** Missing mass spectra: Kaon peak clearly visible, also see pions even after cuts
695
** Found that pions appear localized in phase space - seems to be due to end point in kinematic phase space
696 1 Richard Trotta
** *Next steps:*
697 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)
698 35 Stephen Kay
699
* Yield normalized ratios from SIDIS (Hem)
700
** Yield ratios of data to MC match well in shape, but normalization seems not quite right
701
** *Next steps:*
702 4 Richard Trotta
*** Check if efficiencies, currents, run time etc. are taken into account correctly
703
704
----
705 35 Stephen Kay
706 111 Richard Trotta
h3. April 26, 2018
707 4 Richard Trotta
708 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
709 4 Richard Trotta
710 35 Stephen Kay
* Discussion luminosity scan analysis (earlier scan) - Richard
711
** 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
712
** Notes on efficiencies in report file:
713
*** DT (EDTM) is not electronic deadtime. Instead use for now 50ns* trigger rate for HMS and 100ns* trigger rate for SHMS
714
*** Cherenkov efficiency seems low (check if that is due to PID, thresholds, pi/e, etc)
715
*** Tracking efficiency needs to be checked
716
*** 3/4 trigger efficiency seems ok
717
* Discussion luminosity scan analysis (later scan) - Ryan
718
** Fewer carbon runs than earlier scan
719
** Shown is a tracking-based analysis using data from the ROOT trees
720 111 Richard Trotta
** First results for carbon, LH3, and LD2, but efficiencies need to be checked
721 35 Stephen Kay
* SIDIS analysis - Hem
722
** Shown is a data/MC comparison for different kinematic settings. Agreement in shape is very good. Normalization has yet to be applied.
723
** Discussion about agreement in z and apparent offset - relation of this offset with spectrometer offset
724
* Analysis of exclusive events in SIDIS - Samip
725
** Shown is a look at the first kaon events in exclusive limit of SIDIS data
726
** Ongoing work on implementing coincidence time into tree
727
* Discussion of run plan, and in particular possible low Q2/low energy
728
** Assume that kaon low Q2=0.4 already included - have kinematics with specified beam energies, if needed
729
** 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
730
** Garth will put this together in a draft email
731
732 12 Richard Trotta
----
733
734 111 Richard Trotta
h3. March 29, 2018
735 12 Richard Trotta
736 35 Stephen Kay
*Links to talks->* "Richard, ":https://redmine.jlab.org/documents/16 "Samip":https://redmine.jlab.org/documents/27
737 13 Richard Trotta
738 35 Stephen Kay
* Details of adding points to fall run plan - will be ready sooner, likely in week of 4/1 (Garth, Samip, Tanja)
739
* Luminosity scans (Ryan, Andres, Richard, Pete)
740
* Macros, SIDIS analysis (Hem, Anashe)
741
* Elastic data (TBD)
742
743 14 Richard Trotta
----
744 18 Richard Trotta
745 111 Richard Trotta
h3. February 22, 2018
746 18 Richard Trotta
747 35 Stephen Kay
*Links to talks->* "Andres":https://redmine.jlab.org/documents/19
748 18 Richard Trotta
749 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.
750
* Brief description of Samip's work - working on coincidence timing decoding with JLab staff and re-optimization of kinematics
751
* Discussion of Richard's slides on run plan kinematics and preparations -
752
** 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
753
** 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
754
** for each setting will need 1-2 shifts for calibrations - need to negotiate with other experiments in run group
755
** kinematics plots W-Q2 show that still need to do some optimization
756
** run sheets: include raster size, update coincidence count labeling, and carbon target labeling
757
* Discussion of next meeting. Garth at JLab 8-16 March - might have meeting during that time.
758 26 Richard Trotta
759 35 Stephen Kay
* *Action Items:*
760
** Post slides/notes from this meeting and procedure to set up hcana in Redmine (Tanja)
761
** Update run sheet and kinematic optimization for W/Q2 (Garth)
762
** Circulate elastic calculations for kinematic settings (Samip)
763
** Continue investigation of elastic data and run plan kinematics (Andres/Richard)
764
** Test software installation instructions (Pete)
765
** 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) 
766 32 Stephen Kay
767
----