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Kaon LT Meetings » History » Version 290

Richard Trotta, 04/06/2022 12:16 PM

1 116 Richard Trotta
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h1. *Kaon LT Meetings*
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5 96 Stephen Kay
Kaon LT collaboration analysis meetings. Please add your talk to the meeting ahead of time. Add the newest meeting to the top of the list!
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7 244 Vijay Kumar
----
8 284 Vijay Kumar
9 282 Vijay Kumar
h2. 2022 Meetings
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h3. April 06, 2022
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* Richard 
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** attachment:KaonLTMeeting4_6_22.pdf
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** The analysis of the 10.6 GeV heep coin/singles settings are still ongoing. 
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** There were some issues getting the replays working for the singles runs and the analysis. Things finally were sorted out yesterday (and this morning).
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** The SHMS heep singles are presented. Overall, they look fine. There are still some things to sort out.
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** The HMS heep singles are still running. I will update the slides when they finish.
19 282 Vijay Kumar
* Vijay 
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** The simulation study of the 4.9 GeV KaonLT data has completed.
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** This energy has left, center and right settings data. All these settings look fine. 
22 285 Vijay Kumar
** See the pdf for more info. attachment:Vijay_KaonLT_Meeting_Apri_06_2022.pdf  
23 288 Richard Trotta
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Next meeting April 20th @ 1 EDT
25 284 Vijay Kumar
26 1 Richard Trotta
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27 284 Vijay Kumar
28 281 Richard Trotta
h3. March 23, 2022
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30 281 Richard Trotta
* Garth's Notes attachment:mtg_22mar23.txt
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* Richard 
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** 10.6 GeV heep coin was analyzed. Things look pretty good so far, still some work to be done. attachment:KaonLTMeeting3_23_22.pdf
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** Heep singles are next up. There have been issues replaying these runs but Ali may have fixed this issue with his parameter file changes.
34 279 Nathan Heinrich
* Nathan
35 280 Nathan Heinrich
** Did chack of the Mode 10 plots for HGC, was discrepancy between hardware and software caused by the variable phgcer_SampNSAT being 2 by default.
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** after changing back to 1 discrepancy resolved. Slides: attachment:Mode10Update_2022Mar23.pdf
37 278 Richard Trotta
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Next meeting April 6th @ 1 EDT
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h3. March 9, 2022
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44 271 Garth Huber
* Garth's Notes attachment:mtg_22mar09.txt
45 267 Richard Trotta
* Richard 
46
** Vijay's scripts are working and Richard reproduced some of his previous plots. attachment:KaonLTMeeting3_9_22.pdf
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** The next step is to do a full analysis of the 10.6 GeV heep coin/singles data.
48 268 Nathan Heinrich
* Nathan
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** Update on the current state of mode 10: attachment:Mode10Update_2022Mar9.pdf 
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** See Mark Jones' slide on changes to hcana: https://redmine.jlab.org/attachments/1424
51 267 Richard Trotta
52 1 Richard Trotta
Next meeting March 23th @ 1 EDT
53 277 Garth Huber
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* Regina March 4 meeting on pion leak through in (e,e'K+) analysis attachment:grp_22mar04.txt
55 269 Richard Trotta
56 261 Garth Huber
---
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58 271 Garth Huber
h3. February 23, 2022
59 273 Garth Huber
60 271 Garth Huber
* Garth's Notes attachment:mtg_22feb23.txt
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62 272 Garth Huber
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63
64 244 Vijay Kumar
h3. January 26, 2022  
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66 271 Garth Huber
* Garth's Notes attachment:mtg_22jan26.txt
67 253 Vijay Kumar
* Vijay, Heep updates from the PionLT experiment. attachment:Analysis_Updates_Jan26_2022.pdf 
68 251 Vijay Kumar
** HMS single 2.7 GeV, total 6 settings. attachment:HMS_Analysed_2p7_1.pdf attachment:HMS_Analysed_2p7_2.pdf attachment:HMS_Analysed_2p7_3.pdf attachment:HMS_Analysed_2p7_4.pdf attachment:HMS_Analysed_2p7_5.pdf attachment:HMS_Analysed_2p7_6.pdf   
69 252 Vijay Kumar
** SHMS single 2.7 GeV,total 6 settings. attachment:SHMS_Analysed_2p7_1.pdf attachment:SHMS_Analysed_2p7_2.pdf attachment:SHMS_Analysed_2p7_3.pdf attachment:SHMS_Analysed_2p7_4.pdf attachment:SHMS_Analysed_2p7_5.pdf attachment:SHMS_Analysed_2p7_6.pdf
70 246 Vijay Kumar
** The 3.6 and 4.5 GeV data do not have elastic data.
71 250 Vijay Kumar
** Coin: 2.7, 3.6 and 4.5 GeV. attachment:Analysed_2p7.pdf attachment:Analysed_3p6.pdf attachment:Analysed_4p5.pdf   
72 254 Nathan Heinrich
* Nathan, Short update on the Mode 10
73 255 Nathan Heinrich
** Short update. May need to update hcana to change software voltage threshold. attachment:2022-01-26NathanHeinrich.pdf
74 256 Jacob Murphy
* Jacob, EDTM Study 2
75 260 Jacob Murphy
** EDTM study with beam, taken during LUMI Scan 3
76 255 Nathan Heinrich
** Early look at 3rd EDTM Study
77 248 Vijay Kumar
** Additional notes on increased deadtime in SHMS at High Current. attachment:PionLT_EDTM_Study2_Analysis.pdf
78 113 Richard Trotta
79 222 Richard Trotta
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80 200 Richard Trotta
81 236 Garth Huber
h3. January 12, 2022  
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* Garth's Notes attachment:mtg_22jan12.txt
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* Junaid
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** PID study
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* Vijay
87 240 Vijay Kumar
** Heep-singles study attachment:Analysis_Updates1_Jan12.pdf 
88 238 Vijay Kumar
89 236 Garth Huber
* Nathan
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** Mode-10 data variables
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92 243 Richard Trotta
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94 234 Garth Huber
h3. January 5, 2022  
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96 235 Garth Huber
* Garth's Notes attachment:mtg_22jan05.txt
97 221 Richard Trotta
* Stephen
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** Stephen was updating GitHub but UTIL_BATCH has some permissions issues
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* Richard
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** Update to KLT task schedule
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** Meeting between Richard and Vijay to discuss task breakdown Friday, January 7th at 11 am EST
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** EDTM study 2 will done sometime this weekend
103 223 Richard Trotta
* Vijay
104
** Breakdown of HEEP single analysis for low Q2 data
105 224 Richard Trotta
*** Shapes of SIMC and data are very off
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*** It seems to be a systematic issue on Vijay's part because the same issue is being seen in PLT data
107 231 Vijay Kumar
*** The main issue in my input file was the target thickness, which picked up by Dave in the group meeting. I corrected the target thickness and now it looks ok. See the attached pdf file below.  
108 229 Vijay Kumar
** https://redmine.jlab.org/attachments/1376
109 228 Vijay Kumar
** https://redmine.jlab.org/attachments/1375
110 225 Nathan Heinrich
* Nathan
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** Update on fADC mode 10 studies and the fADC deadtime studies
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** https://redmine.jlab.org/attachments/1372
113 226 Jacob Murphy
* Jacob
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** Summary of EDTM analysis so far in the PionLT experiment
115 227 Jacob Murphy
** https://redmine.jlab.org/attachments/1373
116 242 Richard Trotta
117 221 Richard Trotta
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h2. 2021 Meetings
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h3. August 4, 2021
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* Richard
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** Update on the HEEP singles. The remainder of energy setting ratios vs SIMC were looked at over the range of angles. They look good (within 1% and < 0.5% uncertainty).
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** Issues with the COIN are seen but may be a replay issue.
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129 217 Richard Trotta
h3. July 21, 2021
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* "Richard":https://redmine.jlab.org/attachments/download/1250/KaonLTMeeting7_14_21.pdf
132 217 Richard Trotta
** Update on the HEEP singles. 10.6 GeV ratios vs SIMC were looked at over the range of angles. They look good (within 1%) but proper error bars are needed.
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134 218 Richard Trotta
Next meeting August 4th @ 4:30 ED
135 217 Richard Trotta
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138 215 Richard Trotta
h3. May 12, 2021
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* Richard
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** The currents were adjusted from 1-10 uA with little effect on the EDMTLT but proper changes to the CPULT. The replay bcm cut script developed by Sanghwa was also analyzed to see if it may be causing the issue but it had the same effects. There was also a small error in the code found where T.coin.pEDTM.tdcTimeRaw was incorrectly written as T.coin.pEDTM.tdcTime.
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Next meeting May 26th @ 4:30 ED
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147 213 Richard Trotta
h3. April 28, 2021
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* Richard
150 214 Richard Trotta
** Lumi table was created for 2 sets of runs. Odd behavior seen ~30-45 uA with EDTM where is drops. Playing with the current cuts is the next step.
151 213 Richard Trotta
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Next meeting May 12th @ 4:30 EDT
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156 211 Richard Trotta
h3. April 14, 2021
157 212 Richard Trotta
158 211 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_4_14_21.pdf
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** Updated Lumi carbon plots with uncertainties. PID and current cuts need to be played around with a bit to see if they improve things (as uncertainties don't explain any boiling-type behaviors). 
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** Some PionLT carbon runs were looked at but there are still some issues (either cut or pathing related).
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Next meeting April 14th @ 4:30 EDT
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166 203 Richard Trotta
h3. March 31, 2021
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* Richard
169 209 Richard Trotta
** Luminosity studies
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*** PionLT carbon runs
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**** Still having issues getting decent results. I think I am just missing a definition somewhere that I need to track down
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*** Uncertainties
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**** Easy to do, I just need to put it into my script
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** Explicit PS calculations
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*** I have gotten a rough script working for very simple runs (ie low rate, single spectrometer, calibration runs)
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*** I am trying to expand to lumi singles runs, things get a bit more complex so I am just working out the trigger correlations
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** Pass 2 runs
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*** DEF-files
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**** I checked out the DEF-files for our combination of the nested files
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**** There are a lot a files (~150!!!!) and may be hard to track so next week *we should make a flowchart together*
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**** Working on my list of branches for the next replay
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***** Mainly just working on my list of branches for the explicit PS calculations
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***** *Everyone should have a list of these branches by next mini-meeting (4/7/21)*
184 210 Stephen Kay
* Stephen
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** Updated DEF-File for the "full" replay
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*** Can't remove NData brances, Mark says they won't take up too many resources anyway
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*** Removed individual PMT info and raw info for many detectors, reduced file size by factor ~2
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** Updating DEF-files/scripts for calibrations as part of PionLT prep
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** Will focus on DEF-file/DEF-cut file updates over next week
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*** Will investigate HeeP replays over rest of this week.
191 207 Richard Trotta
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193 203 Richard Trotta
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Next meeting April 14th @ 4:30 EDT
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198 201 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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203 202 Stephen Kay
Next meeting March 31st @ 4:30 EDT
204 201 Stephen Kay
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207 200 Richard Trotta
h3. March 17, 2021
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* "Richard":https://redmine.jlab.org/attachments/download/1197/KaonLTMeeting_3_17_21.pdf
210 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.
211 202 Stephen Kay
* Mini meeting March 24th @ 4:30 EDT
212 201 Stephen Kay
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Next meeting March 31st @ 4:30 EDT
214 200 Richard Trotta
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216 194 Richard Trotta
217 199 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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228 196 Richard Trotta
h3. February 17, 2021
229 194 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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233 198 Nathan Heinrich
* Nathan
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** Presented an update on the Hodoscope Calibrations: https://redmine.jlab.org/attachments/download/1196/HodoscopeUpdate_2021Feb17.pdf
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Next meeting March 3rd @ 4:30 EST
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240 196 Richard Trotta
h3. February 3, 2021
241 193 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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248
249 196 Richard Trotta
h3. January 20, 2021
250 191 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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254 1 Richard Trotta
255 191 Richard Trotta
Next meeting February 3rd @ 4:30 EST
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259 196 Richard Trotta
h3. January 6, 2021
260 190 Richard Trotta
261
* "Richard":https://redmine.jlab.org/attachments/download/1153/KaonLTMeeting1_6_21.pdf
262 186 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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** 
265 1 Richard Trotta
266 191 Richard Trotta
Next meeting January 20th @ 4:30 EST
267 186 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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288 180 Richard Trotta
h3. November 18, 2020
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* Ali
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** 
292 183 Richard Trotta
* "Carlos":https://redmine.jlab.org/attachments/download/1103/LiveTime_Study_cyero.pdf
293 181 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.
294 180 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1101/KaonLTMeeting11_18_20.pdf
295
** Scaler analysis matches Carlos' code now. Overall significant improvements were made through some cut adjustments and incorrect variable definitions.
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* Stephen
297 182 Richard Trotta
** Updated the hallc_replay_lt with parameter files for all coin peaks.
298 180 Richard Trotta
* Vijay
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** 
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301 184 Richard Trotta
Next meeting December 2nd @ 4:30 EST
302 180 Richard Trotta
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305 178 Richard Trotta
h3. November 4, 2020
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* Ali
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** 
309
* "Richard":https://redmine.jlab.org/attachments/download/1092/KaonLTMeeting11_4_20.pdf
310 179 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.
311 178 Richard Trotta
* Stephen
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** 
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* Vijay
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** 
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Next meeting November 18th @ 4:30 EST
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319 141 Stephen Kay
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321 170 Richard Trotta
h3. October 28, 2020
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* Ali
324 177 Richard Trotta
** Went over some of his tracking procedures for the report file implementation
325 172 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1091/KaonLTMeeting10_28_20.pdf
326 173 Richard Trotta
** Luminosity analysis continues. There are still some issues but things have improved a bit.
327 171 Stephen Kay
* "Stephen":https://redmine.jlab.org/attachments/download/1090/KaonLT_Meeting_28_10_20.pdf
328
** Discussion of CT peak analysis, progress and outline of what's left to do with this
329 174 Richard Trotta
* Vijay
330 176 Richard Trotta
** Dry run for Mark's hallc meeting tomorrow (10/29)
331 170 Richard Trotta
332 177 Richard Trotta
Next meeting November 4th @ 4:30 EST
333 170 Richard Trotta
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336 164 Richard Trotta
h3. October 14, 2020
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338 168 Richard Trotta
* Ali
339 164 Richard Trotta
** Working through the REPORT_FILES template to get everything working and outputting proper information.
340
* "Richard":https://redmine.jlab.org/attachments/download/1085/KaonLTMeeting_10_14_20.pdf
341
** Updates on lumi scans. There are many issues from Scalers to Tracking that need to be resolved.
342 167 Richard Trotta
* Stephen
343 164 Richard Trotta
** He has included a demo for using the python analysis script in the README.
344 1 Richard Trotta
345 170 Richard Trotta
Next meeting October 28th @ 4:30 EST
346 164 Richard Trotta
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349 161 Richard Trotta
h3. September 23, 2020
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* "Richard":https://redmine.jlab.org/attachments/download/1078/KaonLTMeeting_9_23_20.pdf
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** A quick lumi analysis after the Pass1 runs. The results were compared to previously analyzed runs (5154-5158). There was some change but nothing huge. Some other runs with the same energy settings were analyzed as well. 
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* Stephen
354 162 Richard Trotta
** Showed some slides from u-channel meeting of omega and proton MM  plots. Then discussed some ideas for dealing with the hole in the HGCer.
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* Petr
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** Data fitting algorithm based on E.H. Bellamy paper. Extracts PMT spectra from ROOT file and makes a 1D projection histogram.
357 161 Richard Trotta
358 163 Richard Trotta
Next meeting October 14th @ 4:30 EST
359 161 Richard Trotta
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361
362 149 Richard Trotta
h3. September 9, 2020
363 156 Richard Trotta
364
* Richard
365 157 Richard Trotta
** Still working on run list, GUI checks
366 156 Richard Trotta
* "Stephen":https://redmine.jlab.org/issues/567
367
** New slim replay scripts and full replay scripts updated
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* Ali
369
** Him and Stephen found an issue (already aware of) with zeros in the parameter files using Mark's hcana changes
370
** Need to be vigilant of crashed replays because this is probably the issue
371 158 Richard Trotta
* Vijay
372 156 Richard Trotta
** Nearly finished with HGcer calibrations
373 1 Richard Trotta
374 161 Richard Trotta
Next meeting September 23rd @ 4:30 EST
375 156 Richard Trotta
376
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377
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h3. August 26, 2020
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380 149 Richard Trotta
*Links to talks->* "Ali":https://redmine.jlab.org/issues/483 "Vijay":https://redmine.jlab.org/issues/479
381 154 Richard Trotta
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* Richard
383
** 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.
384
* Stephen
385
** Updated on RF times. There were a few issues with some runs, but overall most are finished.
386
* Ali
387
** 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)
388
* Vijay
389 150 Richard Trotta
** Updated the SHMS HGCher analysis. The calibrations are coming along, but a little more work needs to be finished up.
390 1 Richard Trotta
391 156 Richard Trotta
Next meeting September 9 @ 5 EST
392 150 Richard Trotta
393 149 Richard Trotta
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394
395 144 Richard Trotta
h3. July 29, 2020
396 147 Stephen Kay
397 148 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
398 146 Stephen Kay
399 155 Richard Trotta
* Stephen
400
** Updates on scripts to set pedestal defaults and AdcTdc offsets after hcana change
401
* Richard
402
** Updated plan and schedule for the analysis going forward
403 1 Richard Trotta
404 150 Richard Trotta
Next meeting August 26th @ 4:30 EST
405
406 144 Richard Trotta
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407
408 139 Richard Trotta
h3. July 8, 2020
409 1 Richard Trotta
410 139 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
411 150 Richard Trotta
412 140 Richard Trotta
Next meeting July 29 @ 4:30 EST
413 139 Richard Trotta
414
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415
416 132 Richard Trotta
h3. June 24, 2020
417
418 143 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
419 137 Richard Trotta
Next meeting July 8th @ 4:30 EST
420 132 Richard Trotta
421
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422
423 129 Richard Trotta
h3. June 9, 2020
424
425 135 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
426 129 Richard Trotta
427 131 Richard Trotta
Next meeting June 24th @ 4:30 EST
428 129 Richard Trotta
429
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430
431 125 Richard Trotta
h3. May 27, 2020
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433 126 Richard Trotta
*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
434 128 Richard Trotta
435 127 Richard Trotta
Next meeting June 9th @ 4:30 EST
436 125 Richard Trotta
437
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438
439 118 Stephen Kay
h3. May 13, 2020
440 124 Richard Trotta
441 138 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
442 1 Richard Trotta
443 127 Richard Trotta
Next meeting May 27th @ 4:30 EST
444 118 Stephen Kay
445 121 Richard Trotta
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446
447 111 Richard Trotta
h3. April 29, 2020
448
449 138 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
450 106 Richard Trotta
451 127 Richard Trotta
Next meeting May 13th @ 4:30 EST
452 106 Richard Trotta
453 1 Richard Trotta
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454 106 Richard Trotta
455 111 Richard Trotta
h3. April 15, 2020
456 104 Richard Trotta
457 102 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/attachments/download/977/KaonLTMeeting_4_15_20.pdf
458 105 Richard Trotta
459 127 Richard Trotta
Next meeting April 29th @ 4:30 EST
460 1 Richard Trotta
461 102 Richard Trotta
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462 95 Stephen Kay
463 111 Richard Trotta
h3. April 1, 2020
464 100 Stephen Kay
465 138 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
466 101 Richard Trotta
467 127 Richard Trotta
Next meeting April 15th @  4:30 EST
468 101 Richard Trotta
469 41 Stephen Kay
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470 93 Richard Trotta
471 111 Richard Trotta
h3. March 18, 2020
472 93 Richard Trotta
473
*Links to talks->* "Richard's EIC Temple Draft 2":https://redmine.jlab.org/attachments/download/942/DRAFT2_mesonSF_EIC_Temple.pdf
474 1 Richard Trotta
475 127 Richard Trotta
Next meeting April 1st @  4:30 EST
476 93 Richard Trotta
477
----
478 91 Richard Trotta
479 111 Richard Trotta
h3. March 11, 2020
480 92 Richard Trotta
481 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
482 94 Richard Trotta
483 127 Richard Trotta
Next meeting March 18th @  4:30 EST
484 91 Richard Trotta
485
----
486 88 Richard Trotta
487 111 Richard Trotta
h3. Feb 26, 2020
488 90 Richard Trotta
489
* Peter's changes to hcana should be coming soon. Richard will check with Mark when he is down there for an update.
490
* Need to incorporate the latest "BCM updates":https://hallcweb.jlab.org/doc-public/ShowDocument?docid=1034 from Dave Mack.
491 1 Richard Trotta
* Richard should look at the luminosity scalar analysis before and after the BCM changes once he gets his script working again.
492 88 Richard Trotta
**  He is checking with Mark about this while he is down in jlab. 
493 1 Richard Trotta
494 127 Richard Trotta
Next meeting March 11th @  4:30 EST
495 86 Richard Trotta
496 1 Richard Trotta
----
497 86 Richard Trotta
498 111 Richard Trotta
h3. Feb 10, 2020 
499 87 Richard Trotta
500 127 Richard Trotta
Next meeting Feb 26th @ 11 am EST
501 86 Richard Trotta
502
----
503 1 Richard Trotta
504 111 Richard Trotta
h3. Jan 22, 2020
505 83 Richard Trotta
506
*Links to talks->* "Richard's Hall C Winter Talk Draft 1":https://redmine.jlab.org/attachments/download/937/KaonLTHallC_WinterTalk2020_Draft1.pdf
507 85 Richard Trotta
508 127 Richard Trotta
Next meeting Feb 10 @ 11 am EST
509 83 Richard Trotta
510 1 Richard Trotta
----
511 83 Richard Trotta
512 111 Richard Trotta
h3. Jan 15,2020
513 81 Richard Trotta
514 82 Richard Trotta
*Links to talks->* "Richard's Hall C Winter Talk Outline":https://redmine.jlab.org/attachments/download/936/KaonLTHallC_WinterTalk2020.pdf
515 81 Richard Trotta
516 127 Richard Trotta
Next meeting Jan 22 @ 11 am EST
517 81 Richard Trotta
518
----
519 78 Richard Trotta
520 111 Richard Trotta
h3. Jan 8,2020
521 78 Richard Trotta
522 1 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/76
523 79 Richard Trotta
524 1 Richard Trotta
* Richard
525
** PID efficiency script is coming together
526
*** Tighter cuts and cuts on timing, beta, etc. will be needed for cleaner electron cuts
527
*** 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.
528
529
Next meeting will be January 15th at 4 pm EST 
530
531 80 Richard Trotta
----
532 113 Richard Trotta
533 112 Richard Trotta
h2. 2019 Meetings
534 80 Richard Trotta
535 141 Stephen Kay
----
536
537 111 Richard Trotta
h3. Dec 17,2019
538
539 77 Richard Trotta
Reminder: Mark Jones' commissioning analysis meetings are bi-weekly and announced by Mark
540
541
* Stephen
542
** Number of passes finished for HMS calorimeter
543
*** Still wiggles in all passes
544
** Finished his report on calibrations, "DC and Calorimeters":https://redmine.jlab.org/documents/74
545
** 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
546
*** CUA will be putting together a similar list
547 1 Richard Trotta
548 77 Richard Trotta
* Richard
549
** Fixed one error issue with SHMS calorimeter calibration code (discussed Dec 10th meeting), but still have one error
550
** PID efficiency script plots are complete, but still some questions he needs to work out before a final version
551
*** Eventually need to include tracking into PID efficiencies
552
** Pete brought up the question for a number of multi-hits we are getting
553
*** (Dead Time)+(Trigger efficiency)-EDTM
554
555 127 Richard Trotta
Next meeting will be after the break; Wednesday, January 8th at 3 pm EST
556 77 Richard Trotta
557
----
558 72 Richard Trotta
559 111 Richard Trotta
h3. Dec 10,2019
560 72 Richard Trotta
561 74 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/73
562
563
* Garth and Stephen were in the most recent SIDIS meeting
564
** Wit had lots of hcana changes but they seem to be critical to our work 
565
*** Changes such as new detector classes
566 1 Richard Trotta
** Hopefully Wit will present these in the next commissioning meeting
567
568 77 Richard Trotta
* Stephen improved wiggles but still prevalent
569 74 Richard Trotta
570
* Richard finished HGCer calibrations, he concluded that the online parameters are sufficient
571
** He also has been looking at SHMS calorimeter calibrations but has had issues running the scripts. Most likely a pathing issue.
572
** The "tasks":https://redmine.jlab.org/projects/kltexp/wiki/Analysis_Tasks page has been updated with a section for efficiencies. 
573
*** A PID efficiency script is currently being developed and hopefully should have some plots for our next meeting.
574
575 127 Richard Trotta
* Next meeting will be December 17th at 3 pm EST.
576 74 Richard Trotta
577 75 Richard Trotta
----
578 74 Richard Trotta
579 111 Richard Trotta
h3. Nov 26,2019
580 71 Richard Trotta
581
*Links to talks->* "Richard":https://redmine.jlab.org/issues/480
582
583
* Stephen
584
** DC SHMS, small-angle has poor performance
585
*** Tighter cuts or PID (currently only looks for electrons)
586
** Vardan said calorimeter wiggles are an ongoing issue with no current solution
587
588
* Richard
589 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.
590 71 Richard Trotta
*** Richard will pick up looking at the HGCer calibrations from Vijay's scripts. 
591
*** Richard will also be looking at the SHMS calorimeter and with the suggestion of getting some negatively polarized SHMS runs from Hem.
592
** The HMS Cherenkov is finished with the conclusion that the calibrations from the online runs are good
593
** We can begin looking forward towards efficiencies. 
594
*** Garth suggested that looking at PID may be an advantageous first steps. Precise definitions of these PIDs will need to be logged.
595
*** Clear notes on efficiencies steps will be needed. They will need to be redefined multiple times in multiple ways. 
596
597
* Hem
598
** Has been looking at the calorimeter as well. 
599 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.  
600
601
----
602
603 111 Richard Trotta
h3. Nov 19,2019
604 1 Richard Trotta
605 70 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
606
607
* Richard
608
** Finished up TDC cut paper going through the procedure (found "here":https://redmine.jlab.org/issues/500)
609
** Needed to add Carlos pre-trigger designs to an appendix for the paper which clarifies the introduction section
610
611
* Stephen
612
** Issues with DC calibration for only a few runs during each run period
613
** "wiggles" in HMS calorimeter calibrations for some runs
614
*** few runs where HMS cal totally failed (which was dependent on initial parameters)
615
*** Spring looked worse than the rest (surprisingly), but this may be because online calibration wasn't great
616
617 2 Richard Trotta
----
618 68 Richard Trotta
619 111 Richard Trotta
h3. Nov 5,2019
620 68 Richard Trotta
621
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500
622
623
* Timing update (Stephen)
624
** Reference times between Richard and Stephen are very similar and the GitHub is updated accordingly
625
** Richard is going to add the trigger time cuts once the fall runs are finished (by end of week)
626
** First pass of detector reference time parameter files finished
627 1 Richard Trotta
628 68 Richard Trotta
* Peter's hcana code (Richard and Stephen)
629
** 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
630
*** Richard has emailed Peter about the issue with no response yet (follow-up soon)
631
** 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.
632
633
* Calibrations were decided to be done once per shift
634
635
* Next meeting schedule...
636 127 Richard Trotta
** Small meetings Nov 12 and Nov 19 (at 3pm EST) so Richard and Stephen can iron out the timing and calibrations
637
** November 26 (at 3pm EST) will be a larger meeting. 
638 68 Richard Trotta
*** This is the rough deadline we made for finishing up calibrations. 
639
*** 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!!
640
641
----
642
643 111 Richard Trotta
h3. Oct 22,2019
644 62 Richard Trotta
645 64 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
646 62 Richard Trotta
647 65 Richard Trotta
* SHMS Reference Time Amplitude Cuts(Stephen)
648
** Extra peaks in HG from cross-talk and "ghost-bands" due to ADC screw up
649
*** cuts applied on SHMS ADC ref time amplitude (greater than zero) done before any further event selection and histogram filling
650
** This is a temporary fix to "ghost-bands" and cross talk
651
*** Although for HG there is still a small peak. The hodoscope is fine.
652
** The time window is easier to set now.
653
** DC has been fine (since it uses TDC)
654
*** DC calibrations should be good to complete, other detectors need more fixes (i.e. the remaining "ghost-band")
655
** Hodoscope still bad but this might be because of that "ghost-band", needs to be further investigated
656
657 1 Richard Trotta
* Peter's hcana fixes for reference time (Richard)
658 67 Richard Trotta
** Peter implemented changes to hcana
659
** Two major issues...
660 1 Richard Trotta
## Amplitude goes to null and integral is low or negative which causes a rate-dependent efficiency. 
661 67 Richard Trotta
*** Peter has used the average pulse value acquired over a large sample of runs for each detector. 
662 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)
663 67 Richard Trotta
*** Peter created a routine to find the best offset by means of matching TDC and ADC
664
** Richard has been checking for bugs in the code. 
665
*** It seems to be ready to implement, Richard emailed Peter for confirmation on the implementation in our group directory
666
667 1 Richard Trotta
* Calibration of HMS detectors when the timing is agreed upon by Stephen and Richard.
668 67 Richard Trotta
** Besides hodoscope which still has an issue with the script
669 65 Richard Trotta
** Stephen and Richard are having a meeting late next week to determine time window values
670 62 Richard Trotta
*** These will be relatively final, but on the wider side if adjustments need to be made in the future
671
672 1 Richard Trotta
-----
673 61 Richard Trotta
674 111 Richard Trotta
h3. Sep 24,2019
675 61 Richard Trotta
676
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
677 1 Richard Trotta
678 61 Richard Trotta
-----
679 1 Richard Trotta
680 111 Richard Trotta
h3. Sep 10,2019
681 59 Vijay Kumar
682
*Links to talks->* "Stephen":https://redmine.jlab.org/documents/69 "Ali":https://redmine.jlab.org/documents/72 "Richard":https://redmine.jlab.org/issues/500
683 1 Richard Trotta
684
-----
685 55 Stephen Kay
686 111 Richard Trotta
h3. August 26, 2019
687 55 Stephen Kay
688
*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
689 1 Richard Trotta
690 54 Richard Trotta
----
691
692 111 Richard Trotta
h3. June 21, 2019
693 54 Richard Trotta
694 1 Richard Trotta
*Links to talks->* "Hallc Talk Outline":https://redmine.jlab.org/documents/60 
695 54 Richard Trotta
696 42 Stephen Kay
----
697
698 111 Richard Trotta
h3. June 14, 2019
699 1 Richard Trotta
700 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
701 42 Stephen Kay
702
703 35 Stephen Kay
----
704 1 Richard Trotta
705 111 Richard Trotta
h3. June 4, 2019
706 36 Vijay Kumar
707 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
708 35 Stephen Kay
709 1 Richard Trotta
710 35 Stephen Kay
----
711 1 Richard Trotta
712 111 Richard Trotta
h3. May 21, 2019
713 1 Richard Trotta
714
*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
715 35 Stephen Kay
716
----
717 1 Richard Trotta
718 111 Richard Trotta
h3. May 14, 2019
719 1 Richard Trotta
720 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
721 1 Richard Trotta
722 35 Stephen Kay
----
723 1 Richard Trotta
724 111 Richard Trotta
h3. April 30, 2019
725 1 Richard Trotta
726
*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
727 35 Stephen Kay
728 1 Richard Trotta
----
729
730
h3. February 4, 2019
731
732
*Links to talks->* "Richard":https://redmine.jlab.org/documents/43 "Stephen":https://redmine.jlab.org/documents/44
733
734
----
735 113 Richard Trotta
736 112 Richard Trotta
h2. 2018 Meetings
737 141 Stephen Kay
738
----
739 111 Richard Trotta
740
h3. August 21, 2018
741
742 1 Richard Trotta
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
743 35 Stephen Kay
744 1 Richard Trotta
----
745 35 Stephen Kay
746 111 Richard Trotta
h3. August 8, 2018
747 35 Stephen Kay
748
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
749 1 Richard Trotta
750
----
751 35 Stephen Kay
752 111 Richard Trotta
h3. August 3, 2018
753 1 Richard Trotta
754 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383
755
*Links to talks->*
756 1 Richard Trotta
757 35 Stephen Kay
----
758 1 Richard Trotta
759 111 Richard Trotta
h3. July 11, 2018
760 1 Richard Trotta
761 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383 #384
762 1 Richard Trotta
763 35 Stephen Kay
*Action items:*
764 1 Richard Trotta
765 35 Stephen Kay
* Update run plan, e.g. add prescales (Garth)
766
* Check on details of: magnet cycling procedure, minimum angles, MCC fringe field steering, beam energy measurements, optics checks (Tanja)
767
* Identify additional run coordinators (Tanja)
768
* Encourage collaborators to take shifts, e.g. FIU (Pete)
769
* Draft email about shifts etc. to collaboration (Tanja)
770
* Develop diagnostic scripts and kaonLT specific (Richard, Ryan)
771
* Continue documentation development, e.g. checklist, shift taker instructions, HowTo or link to generic Hall C HowTo, task list, web page (Richard, Garth)
772 1 Richard Trotta
773 35 Stephen Kay
*Discussions:*
774
775
* 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
776
* HGC: waiting for re-installation
777
* Trigger checkout: main items to keep in mind: fADC thresholds, timing HMS/SHMS - leading arm, possible rate limitations
778 1 Richard Trotta
* Shifts
779
* Diagnostics scripts and documentation
780
* Personnel schedules
781
782
----
783
784 111 Richard Trotta
h3. June 28, 2018
785 1 Richard Trotta
786
*Links to talks->* "Richard":https://redmine.jlab.org/documents/34
787
788
*Action Items:*
789
790
* Develop and post shift schedule. Send out request. Find out who is KAONLT liaison (Tanja)
791
* Contact potential run coordinators. (Tanja)
792
* Aerogel tray exchange for start of experiment and coordination of future exchanges (Vladimir)
793
* Update runplan and prepare documents needed for shift crew, e.g. run sheets (Garth)
794
* Set up a web page to collect and link from Redmine - How-To documents, initial calibrations, etc. (Garth, Richard)
795
* 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)
796
* Develop trigger/detector checkout plan (Tanja, initial draft)
797
** Are all experts available at run start, experts needed: coincidence timing , Harp Scans, BCM calibrations, ...
798
* 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)
799
* Find out if all aerogel trays needed for experiment can be stored inside Hall C to avoid having to open truck ramp (Vladimir)
800
801
*Analysis Updates:*
802
803
* Ryan 
804
** resolving differences between his analysis and Richard's
805
806
* Richard
807
** 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
808
** 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.
809
810
----
811
812 111 Richard Trotta
h3. May 31, 2018
813 1 Richard Trotta
814 35 Stephen Kay
*Links to talks->* "Samip":https://redmine.jlab.org/documents/30
815 1 Richard Trotta
816 35 Stephen Kay
----
817 1 Richard Trotta
818 111 Richard Trotta
h3. May 17, 2018 
819 1 Richard Trotta
820 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
821 2 Richard Trotta
822 35 Stephen Kay
* Luminosity scans (Richard, Ryan)
823 111 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
824 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
825
** discussion about pre-scale factors
826 1 Richard Trotta
827 35 Stephen Kay
* Discussion about Richard's script extracting and printing information from report files and trees including histograms
828
** Add option for looking at yields with cuts on cointime, target window, and missing mass
829
** Add option to look at real peak vs. background level
830 1 Richard Trotta
831 35 Stephen Kay
* H(e,e'p) kinematics investigation for fall run (Samip)
832
** 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
833 1 Richard Trotta
834 35 Stephen Kay
* *Action Items*
835
** Luminosity scans at low rates from January (Richard)
836
** Luminosity scans from April with corrected efficiencies, e.d. DT (Ryan)
837
** H(e,e'p) and H(e,e') kinematics for upcoming Kaon LT run (Samip)
838
** Kaon LT detailed run plan (Garth, Pete, Tanja)
839
** Preparations, e.g. report files, diagnostic histograms and real time monitoring, shift worker instructions, optimization of trees (all)
840 1 Richard Trotta
841
----
842
843 111 Richard Trotta
h3. May 10, 2018
844 35 Stephen Kay
845 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
846 35 Stephen Kay
847
* Luminosity Scans January 2018 (Richard)
848
** Tracking-based analysis for Runs 1415-1423, .. for now focus on HMS, typical HMS S1X rates are <
849
** Cuts applied: PID for electrons (Cer, Cal), acceptance (delta)
850
** Efficiency calculation was investigated in detail and applied using scalers from trees
851
** Results for carbon (normalized to 30uA) show large variation - need to understand
852
** *Next steps:*
853
*** Double check calculation of computer lifetime, look for differences in TRIG and PRETRIG scalers
854
*** Check stability of pre-scale (Ryan saw changes within runs)
855
*** Check if detector calibrations for runs are implemented correctly
856
*** Analyze with Ryan's cuts
857 1 Richard Trotta
858 35 Stephen Kay
* Luminosity Scans April 2018 (Ryan)
859
** Confirms Richard's earlier finding that scaler-based analysis is not reliable and that it's best to analyze event-by-event
860
** Tracking-based analysis for runs 2073-2095
861
** Cuts applied: PID for electrons (TOF, Cal, Chi2), acceptance (delta and angles), BCM4a
862
** Included most recent detector calibrations in replay of these runs
863
** Efficiencies from report file mainly, may need to update tracking efficiency implementation
864
** Found that calculations of computer deadtime requires different set of scalers for runs from January to those from April 2018
865
** Results show carbon yields consistent with unity within error (0.5% error bars), and boiling for hydrogen and deuterium
866
** *Next steps:*
867 5 Richard Trotta
*** Check tracking efficiency
868 35 Stephen Kay
869
* *Global comments on Luminosity Scans (so far)*
870 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.
871 35 Stephen Kay
** Efficiencies in report files need to be updated, e.g. CPU deadtime (Richard)
872
** Check if BCM4a is the one closest to the target - get a map of the hall (Richard, Ryan)
873
** Uncertainties on current
874
** Detector calibrations
875 1 Richard Trotta
** HMS vs. SHMS
876 35 Stephen Kay
877
* eK+ coincidence time from SIDIS Spring 2018 run (Samip)
878
** Worked with Mark Jones on coincidence time calculation - now available in hcana (see Samip's 10 May 2018 email for more details)
879
** runs used in this analysis: 3423 with Q2=3.1 GeV2 and W=2.78 GeV
880
** Coincidence time spectrum shows peak separations >2 ns corresponding to different accelerator frequency
881
** Missing mass spectra: Kaon peak clearly visible, also see pions even after cuts
882
** Found that pions appear localized in phase space - seems to be due to end point in kinematic phase space
883 1 Richard Trotta
** *Next steps:*
884 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)
885 35 Stephen Kay
886
* Yield normalized ratios from SIDIS (Hem)
887
** Yield ratios of data to MC match well in shape, but normalization seems not quite right
888
** *Next steps:*
889 4 Richard Trotta
*** Check if efficiencies, currents, run time etc. are taken into account correctly
890
891
----
892 35 Stephen Kay
893 111 Richard Trotta
h3. April 26, 2018
894 4 Richard Trotta
895 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
896 4 Richard Trotta
897 35 Stephen Kay
* Discussion luminosity scan analysis (earlier scan) - Richard
898
** 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
899
** Notes on efficiencies in report file:
900
*** DT (EDTM) is not electronic deadtime. Instead use for now 50ns* trigger rate for HMS and 100ns* trigger rate for SHMS
901
*** Cherenkov efficiency seems low (check if that is due to PID, thresholds, pi/e, etc)
902
*** Tracking efficiency needs to be checked
903
*** 3/4 trigger efficiency seems ok
904
* Discussion luminosity scan analysis (later scan) - Ryan
905
** Fewer carbon runs than earlier scan
906
** Shown is a tracking-based analysis using data from the ROOT trees
907 111 Richard Trotta
** First results for carbon, LH3, and LD2, but efficiencies need to be checked
908 35 Stephen Kay
* SIDIS analysis - Hem
909
** Shown is a data/MC comparison for different kinematic settings. Agreement in shape is very good. Normalization has yet to be applied.
910
** Discussion about agreement in z and apparent offset - relation of this offset with spectrometer offset
911
* Analysis of exclusive events in SIDIS - Samip
912
** Shown is a look at the first kaon events in exclusive limit of SIDIS data
913
** Ongoing work on implementing coincidence time into tree
914
* Discussion of run plan, and in particular possible low Q2/low energy
915
** Assume that kaon low Q2=0.4 already included - have kinematics with specified beam energies, if needed
916
** 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
917
** Garth will put this together in a draft email
918
919 12 Richard Trotta
----
920
921 111 Richard Trotta
h3. March 29, 2018
922 12 Richard Trotta
923 35 Stephen Kay
*Links to talks->* "Richard, ":https://redmine.jlab.org/documents/16 "Samip":https://redmine.jlab.org/documents/27
924 13 Richard Trotta
925 35 Stephen Kay
* Details of adding points to fall run plan - will be ready sooner, likely in week of 4/1 (Garth, Samip, Tanja)
926
* Luminosity scans (Ryan, Andres, Richard, Pete)
927
* Macros, SIDIS analysis (Hem, Anashe)
928
* Elastic data (TBD)
929
930 14 Richard Trotta
----
931 18 Richard Trotta
932 111 Richard Trotta
h3. February 22, 2018
933 18 Richard Trotta
934 35 Stephen Kay
*Links to talks->* "Andres":https://redmine.jlab.org/documents/19
935 18 Richard Trotta
936 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.
937
* Brief description of Samip's work - working on coincidence timing decoding with JLab staff and re-optimization of kinematics
938
* Discussion of Richard's slides on run plan kinematics and preparations -
939
** 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
940
** 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
941
** for each setting will need 1-2 shifts for calibrations - need to negotiate with other experiments in run group
942
** kinematics plots W-Q2 show that still need to do some optimization
943
** run sheets: include raster size, update coincidence count labeling, and carbon target labeling
944
* Discussion of next meeting. Garth at JLab 8-16 March - might have meeting during that time.
945 26 Richard Trotta
946 35 Stephen Kay
* *Action Items:*
947
** Post slides/notes from this meeting and procedure to set up hcana in Redmine (Tanja)
948
** Update run sheet and kinematic optimization for W/Q2 (Garth)
949
** Circulate elastic calculations for kinematic settings (Samip)
950
** Continue investigation of elastic data and run plan kinematics (Andres/Richard)
951
** Test software installation instructions (Pete)
952
** 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) 
953 32 Stephen Kay
954
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