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Kaon LT Meetings » History » Version 197

Richard Trotta, 02/17/2021 04:58 PM

1 116 Richard Trotta
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h1. *Kaon LT Meetings*
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5 96 Stephen Kay
Kaon LT collaboration analysis meetings. Please add your talk to the meeting ahead of time. Add the newest meeting to the top of the list!
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7 95 Stephen Kay
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8 113 Richard Trotta
9 194 Richard Trotta
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h2. 2021 Meetings
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12 196 Richard Trotta
h3. February 17, 2021
13 194 Richard Trotta
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* Richard
15
** 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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17
Next meeting March 3rd @ 4:30 EST
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21 196 Richard Trotta
h3. February 3, 2021
22 193 Richard Trotta
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* Richard
24
** 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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30 196 Richard Trotta
h3. January 20, 2021
31 191 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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35 1 Richard Trotta
36 191 Richard Trotta
Next meeting February 3rd @ 4:30 EST
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40 196 Richard Trotta
h3. January 6, 2021
41 190 Richard Trotta
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* "Richard":https://redmine.jlab.org/attachments/download/1153/KaonLTMeeting1_6_21.pdf
43 186 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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** 
46 1 Richard Trotta
47 191 Richard Trotta
Next meeting January 20th @ 4:30 EST
48 186 Richard Trotta
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52
h2. 2020 Meetings
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54 185 Richard Trotta
h3. December 2, 2020
55
 
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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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69 180 Richard Trotta
h3. November 18, 2020
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* Ali
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** 
73 183 Richard Trotta
* "Carlos":https://redmine.jlab.org/attachments/download/1103/LiveTime_Study_cyero.pdf
74 181 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.
75 180 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
78 182 Richard Trotta
** Updated the hallc_replay_lt with parameter files for all coin peaks.
79 180 Richard Trotta
* Vijay
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** 
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82 184 Richard Trotta
Next meeting December 2nd @ 4:30 EST
83 180 Richard Trotta
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86 178 Richard Trotta
h3. November 4, 2020
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* Ali
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** 
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* "Richard":https://redmine.jlab.org/attachments/download/1092/KaonLTMeeting11_4_20.pdf
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** Scaler analysis is getting closer to an answer. An in-depth comparison of Carlos and Richard's analysis shows inconsistencies between the two.
92 178 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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100 141 Stephen Kay
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102 170 Richard Trotta
h3. October 28, 2020
103
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* Ali
105 177 Richard Trotta
** Went over some of his tracking procedures for the report file implementation
106 172 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1091/KaonLTMeeting10_28_20.pdf
107 173 Richard Trotta
** Luminosity analysis continues. There are still some issues but things have improved a bit.
108 171 Stephen Kay
* "Stephen":https://redmine.jlab.org/attachments/download/1090/KaonLT_Meeting_28_10_20.pdf
109
** Discussion of CT peak analysis, progress and outline of what's left to do with this
110 174 Richard Trotta
* Vijay
111 176 Richard Trotta
** Dry run for Mark's hallc meeting tomorrow (10/29)
112 170 Richard Trotta
113 177 Richard Trotta
Next meeting November 4th @ 4:30 EST
114 170 Richard Trotta
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117 164 Richard Trotta
h3. October 14, 2020
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119 168 Richard Trotta
* Ali
120 164 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.
123 167 Richard Trotta
* Stephen
124 164 Richard Trotta
** He has included a demo for using the python analysis script in the README.
125 1 Richard Trotta
126 170 Richard Trotta
Next meeting October 28th @ 4:30 EST
127 164 Richard Trotta
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130 161 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
135 162 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.
138 161 Richard Trotta
139 163 Richard Trotta
Next meeting October 14th @ 4:30 EST
140 161 Richard Trotta
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143 149 Richard Trotta
h3. September 9, 2020
144 156 Richard Trotta
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* Richard
146 157 Richard Trotta
** Still working on run list, GUI checks
147 156 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
152 158 Richard Trotta
* Vijay
153 156 Richard Trotta
** Nearly finished with HGcer calibrations
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155 161 Richard Trotta
Next meeting September 23rd @ 4:30 EST
156 156 Richard Trotta
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h3. August 26, 2020
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161 149 Richard Trotta
*Links to talks->* "Ali":https://redmine.jlab.org/issues/483 "Vijay":https://redmine.jlab.org/issues/479
162 154 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
170 150 Richard Trotta
** Updated the SHMS HGCher analysis. The calibrations are coming along, but a little more work needs to be finished up.
171 1 Richard Trotta
172 156 Richard Trotta
Next meeting September 9 @ 5 EST
173 150 Richard Trotta
174 149 Richard Trotta
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176 144 Richard Trotta
h3. July 29, 2020
177 147 Stephen Kay
178 148 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
179 146 Stephen Kay
180 155 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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185 150 Richard Trotta
Next meeting August 26th @ 4:30 EST
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187 144 Richard Trotta
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189 139 Richard Trotta
h3. July 8, 2020
190 1 Richard Trotta
191 139 Richard Trotta
*Links to talks->* "Vijay":https://redmine.jlab.org/attachments/download/1023/SHMS%20Proton%20Absorption.ods "Ali":https://redmine.jlab.org/attachments/download/1022/KaonLT_Meeting_Jul_8.pdf
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193 140 Richard Trotta
Next meeting July 29 @ 4:30 EST
194 139 Richard Trotta
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h3. June 24, 2020
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*Links to talks->* "Vijay":https://redmine.jlab.org/attachments/download/1014/Vijay_24_June_20.pdf "Richard":https://redmine.jlab.org/attachments/download/1013/KaonLTMeeting_6_24_20.pdf
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Next meeting July 8th @ 4:30 EST
201 132 Richard Trotta
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h3. June 9, 2020
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*Links to talks->* "Vijay":https://redmine.jlab.org/attachments/download/1006/Vijay_9_June_20.pdf "Ali":https://redmine.jlab.org/attachments/download/1007/KaonLT_Meeting_Jun_9.pdf "Richard":https://redmine.jlab.org/attachments/download/1005/KaonLTMeeting_6_9_20.pdf
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208 131 Richard Trotta
Next meeting June 24th @ 4:30 EST
209 129 Richard Trotta
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212 125 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
215 128 Richard Trotta
216 127 Richard Trotta
Next meeting June 9th @ 4:30 EST
217 125 Richard Trotta
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220 118 Stephen Kay
h3. May 13, 2020
221 124 Richard Trotta
222 138 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
223 1 Richard Trotta
224 127 Richard Trotta
Next meeting May 27th @ 4:30 EST
225 118 Stephen Kay
226 121 Richard Trotta
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228 111 Richard Trotta
h3. April 29, 2020
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230 138 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
231 106 Richard Trotta
232 127 Richard Trotta
Next meeting May 13th @ 4:30 EST
233 106 Richard Trotta
234 1 Richard Trotta
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235 106 Richard Trotta
236 111 Richard Trotta
h3. April 15, 2020
237 104 Richard Trotta
238 102 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/attachments/download/977/KaonLTMeeting_4_15_20.pdf
239 105 Richard Trotta
240 127 Richard Trotta
Next meeting April 29th @ 4:30 EST
241 1 Richard Trotta
242 102 Richard Trotta
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243 95 Stephen Kay
244 111 Richard Trotta
h3. April 1, 2020
245 100 Stephen Kay
246 138 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
247 101 Richard Trotta
248 127 Richard Trotta
Next meeting April 15th @  4:30 EST
249 101 Richard Trotta
250 41 Stephen Kay
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251 93 Richard Trotta
252 111 Richard Trotta
h3. March 18, 2020
253 93 Richard Trotta
254
*Links to talks->* "Richard's EIC Temple Draft 2":https://redmine.jlab.org/attachments/download/942/DRAFT2_mesonSF_EIC_Temple.pdf
255 1 Richard Trotta
256 127 Richard Trotta
Next meeting April 1st @  4:30 EST
257 93 Richard Trotta
258
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259 91 Richard Trotta
260 111 Richard Trotta
h3. March 11, 2020
261 92 Richard Trotta
262 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
263 94 Richard Trotta
264 127 Richard Trotta
Next meeting March 18th @  4:30 EST
265 91 Richard Trotta
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267 88 Richard Trotta
268 111 Richard Trotta
h3. Feb 26, 2020
269 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.
272 1 Richard Trotta
* Richard should look at the luminosity scalar analysis before and after the BCM changes once he gets his script working again.
273 88 Richard Trotta
**  He is checking with Mark about this while he is down in jlab. 
274 1 Richard Trotta
275 127 Richard Trotta
Next meeting March 11th @  4:30 EST
276 86 Richard Trotta
277 1 Richard Trotta
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278 86 Richard Trotta
279 111 Richard Trotta
h3. Feb 10, 2020 
280 87 Richard Trotta
281 127 Richard Trotta
Next meeting Feb 26th @ 11 am EST
282 86 Richard Trotta
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284 1 Richard Trotta
285 111 Richard Trotta
h3. Jan 22, 2020
286 83 Richard Trotta
287
*Links to talks->* "Richard's Hall C Winter Talk Draft 1":https://redmine.jlab.org/attachments/download/937/KaonLTHallC_WinterTalk2020_Draft1.pdf
288 85 Richard Trotta
289 127 Richard Trotta
Next meeting Feb 10 @ 11 am EST
290 83 Richard Trotta
291 1 Richard Trotta
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292 83 Richard Trotta
293 111 Richard Trotta
h3. Jan 15,2020
294 81 Richard Trotta
295 82 Richard Trotta
*Links to talks->* "Richard's Hall C Winter Talk Outline":https://redmine.jlab.org/attachments/download/936/KaonLTHallC_WinterTalk2020.pdf
296 81 Richard Trotta
297 127 Richard Trotta
Next meeting Jan 22 @ 11 am EST
298 81 Richard Trotta
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300 78 Richard Trotta
301 111 Richard Trotta
h3. Jan 8,2020
302 78 Richard Trotta
303 1 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/76
304 79 Richard Trotta
305 1 Richard Trotta
* Richard
306
** 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
308
*** 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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313 113 Richard Trotta
314 112 Richard Trotta
h2. 2019 Meetings
315 80 Richard Trotta
316 141 Stephen Kay
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318 111 Richard Trotta
h3. Dec 17,2019
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320 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
324
*** Still wiggles in all passes
325
** Finished his report on calibrations, "DC and Calorimeters":https://redmine.jlab.org/documents/74
326
** 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
327
*** CUA will be putting together a similar list
328 1 Richard Trotta
329 77 Richard Trotta
* Richard
330
** Fixed one error issue with SHMS calorimeter calibration code (discussed Dec 10th meeting), but still have one error
331
** PID efficiency script plots are complete, but still some questions he needs to work out before a final version
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*** Eventually need to include tracking into PID efficiencies
333
** Pete brought up the question for a number of multi-hits we are getting
334
*** (Dead Time)+(Trigger efficiency)-EDTM
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Next meeting will be after the break; Wednesday, January 8th at 3 pm EST
337 77 Richard Trotta
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339 72 Richard Trotta
340 111 Richard Trotta
h3. Dec 10,2019
341 72 Richard Trotta
342 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
345
** 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
347 1 Richard Trotta
** Hopefully Wit will present these in the next commissioning meeting
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* Stephen improved wiggles but still prevalent
350 74 Richard Trotta
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* Richard finished HGCer calibrations, he concluded that the online parameters are sufficient
352
** He also has been looking at SHMS calorimeter calibrations but has had issues running the scripts. Most likely a pathing issue.
353
** The "tasks":https://redmine.jlab.org/projects/kltexp/wiki/Analysis_Tasks page has been updated with a section for efficiencies. 
354
*** A PID efficiency script is currently being developed and hopefully should have some plots for our next meeting.
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* Next meeting will be December 17th at 3 pm EST.
357 74 Richard Trotta
358 75 Richard Trotta
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359 74 Richard Trotta
360 111 Richard Trotta
h3. Nov 26,2019
361 71 Richard Trotta
362
*Links to talks->* "Richard":https://redmine.jlab.org/issues/480
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* Stephen
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** DC SHMS, small-angle has poor performance
366
*** Tighter cuts or PID (currently only looks for electrons)
367
** Vardan said calorimeter wiggles are an ongoing issue with no current solution
368
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* Richard
370 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.
371 71 Richard Trotta
*** Richard will pick up looking at the HGCer calibrations from Vijay's scripts. 
372
*** Richard will also be looking at the SHMS calorimeter and with the suggestion of getting some negatively polarized SHMS runs from Hem.
373
** The HMS Cherenkov is finished with the conclusion that the calibrations from the online runs are good
374
** We can begin looking forward towards efficiencies. 
375
*** Garth suggested that looking at PID may be an advantageous first steps. Precise definitions of these PIDs will need to be logged.
376
*** Clear notes on efficiencies steps will be needed. They will need to be redefined multiple times in multiple ways. 
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* Hem
379
** Has been looking at the calorimeter as well. 
380 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.  
381
382
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383
384 111 Richard Trotta
h3. Nov 19,2019
385 1 Richard Trotta
386 70 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
387
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* Richard
389
** Finished up TDC cut paper going through the procedure (found "here":https://redmine.jlab.org/issues/500)
390
** Needed to add Carlos pre-trigger designs to an appendix for the paper which clarifies the introduction section
391
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* Stephen
393
** Issues with DC calibration for only a few runs during each run period
394
** "wiggles" in HMS calorimeter calibrations for some runs
395
*** few runs where HMS cal totally failed (which was dependent on initial parameters)
396
*** Spring looked worse than the rest (surprisingly), but this may be because online calibration wasn't great
397
398 2 Richard Trotta
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399 68 Richard Trotta
400 111 Richard Trotta
h3. Nov 5,2019
401 68 Richard Trotta
402
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500
403
404
* Timing update (Stephen)
405
** Reference times between Richard and Stephen are very similar and the GitHub is updated accordingly
406
** Richard is going to add the trigger time cuts once the fall runs are finished (by end of week)
407
** First pass of detector reference time parameter files finished
408 1 Richard Trotta
409 68 Richard Trotta
* Peter's hcana code (Richard and Stephen)
410
** 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
411
*** Richard has emailed Peter about the issue with no response yet (follow-up soon)
412
** 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.
413
414
* Calibrations were decided to be done once per shift
415
416
* Next meeting schedule...
417 127 Richard Trotta
** Small meetings Nov 12 and Nov 19 (at 3pm EST) so Richard and Stephen can iron out the timing and calibrations
418
** November 26 (at 3pm EST) will be a larger meeting. 
419 68 Richard Trotta
*** This is the rough deadline we made for finishing up calibrations. 
420
*** This should be sufficient for all detectors (although hodoscope and HG which may persist). The ultimate goal is for all calibrations to be finished up before Winter break!!
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422
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h3. Oct 22,2019
425 62 Richard Trotta
426 64 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
427 62 Richard Trotta
428 65 Richard Trotta
* SHMS Reference Time Amplitude Cuts(Stephen)
429
** Extra peaks in HG from cross-talk and "ghost-bands" due to ADC screw up
430
*** cuts applied on SHMS ADC ref time amplitude (greater than zero) done before any further event selection and histogram filling
431
** This is a temporary fix to "ghost-bands" and cross talk
432
*** Although for HG there is still a small peak. The hodoscope is fine.
433
** The time window is easier to set now.
434
** DC has been fine (since it uses TDC)
435
*** DC calibrations should be good to complete, other detectors need more fixes (i.e. the remaining "ghost-band")
436
** Hodoscope still bad but this might be because of that "ghost-band", needs to be further investigated
437
438 1 Richard Trotta
* Peter's hcana fixes for reference time (Richard)
439 67 Richard Trotta
** Peter implemented changes to hcana
440
** Two major issues...
441 1 Richard Trotta
## Amplitude goes to null and integral is low or negative which causes a rate-dependent efficiency. 
442 67 Richard Trotta
*** Peter has used the average pulse value acquired over a large sample of runs for each detector. 
443 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)
444 67 Richard Trotta
*** Peter created a routine to find the best offset by means of matching TDC and ADC
445
** Richard has been checking for bugs in the code. 
446
*** It seems to be ready to implement, Richard emailed Peter for confirmation on the implementation in our group directory
447
448 1 Richard Trotta
* Calibration of HMS detectors when the timing is agreed upon by Stephen and Richard.
449 67 Richard Trotta
** Besides hodoscope which still has an issue with the script
450 65 Richard Trotta
** Stephen and Richard are having a meeting late next week to determine time window values
451 62 Richard Trotta
*** These will be relatively final, but on the wider side if adjustments need to be made in the future
452
453 1 Richard Trotta
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454 61 Richard Trotta
455 111 Richard Trotta
h3. Sep 24,2019
456 61 Richard Trotta
457
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
458 1 Richard Trotta
459 61 Richard Trotta
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460 1 Richard Trotta
461 111 Richard Trotta
h3. Sep 10,2019
462 59 Vijay Kumar
463
*Links to talks->* "Stephen":https://redmine.jlab.org/documents/69 "Ali":https://redmine.jlab.org/documents/72 "Richard":https://redmine.jlab.org/issues/500
464 1 Richard Trotta
465
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466 55 Stephen Kay
467 111 Richard Trotta
h3. August 26, 2019
468 55 Stephen Kay
469
*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
470 1 Richard Trotta
471 54 Richard Trotta
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472
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h3. June 21, 2019
474 54 Richard Trotta
475 1 Richard Trotta
*Links to talks->* "Hallc Talk Outline":https://redmine.jlab.org/documents/60 
476 54 Richard Trotta
477 42 Stephen Kay
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478
479 111 Richard Trotta
h3. June 14, 2019
480 1 Richard Trotta
481 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
482 42 Stephen Kay
483
484 35 Stephen Kay
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485 1 Richard Trotta
486 111 Richard Trotta
h3. June 4, 2019
487 36 Vijay Kumar
488 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
489 35 Stephen Kay
490 1 Richard Trotta
491 35 Stephen Kay
----
492 1 Richard Trotta
493 111 Richard Trotta
h3. May 21, 2019
494 1 Richard Trotta
495
*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
496 35 Stephen Kay
497
----
498 1 Richard Trotta
499 111 Richard Trotta
h3. May 14, 2019
500 1 Richard Trotta
501 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
502 1 Richard Trotta
503 35 Stephen Kay
----
504 1 Richard Trotta
505 111 Richard Trotta
h3. April 30, 2019
506 1 Richard Trotta
507
*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
508 35 Stephen Kay
509 1 Richard Trotta
----
510
511
h3. February 4, 2019
512
513
*Links to talks->* "Richard":https://redmine.jlab.org/documents/43 "Stephen":https://redmine.jlab.org/documents/44
514
515
----
516 113 Richard Trotta
517 112 Richard Trotta
h2. 2018 Meetings
518 141 Stephen Kay
519
----
520 111 Richard Trotta
521
h3. August 21, 2018
522
523 1 Richard Trotta
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
524 35 Stephen Kay
525 1 Richard Trotta
----
526 35 Stephen Kay
527 111 Richard Trotta
h3. August 8, 2018
528 35 Stephen Kay
529
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
530 1 Richard Trotta
531
----
532 35 Stephen Kay
533 111 Richard Trotta
h3. August 3, 2018
534 1 Richard Trotta
535 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383
536
*Links to talks->*
537 1 Richard Trotta
538 35 Stephen Kay
----
539 1 Richard Trotta
540 111 Richard Trotta
h3. July 11, 2018
541 1 Richard Trotta
542 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383 #384
543 1 Richard Trotta
544 35 Stephen Kay
*Action items:*
545 1 Richard Trotta
546 35 Stephen Kay
* Update run plan, e.g. add prescales (Garth)
547
* Check on details of: magnet cycling procedure, minimum angles, MCC fringe field steering, beam energy measurements, optics checks (Tanja)
548
* Identify additional run coordinators (Tanja)
549
* Encourage collaborators to take shifts, e.g. FIU (Pete)
550
* Draft email about shifts etc. to collaboration (Tanja)
551
* Develop diagnostic scripts and kaonLT specific (Richard, Ryan)
552
* Continue documentation development, e.g. checklist, shift taker instructions, HowTo or link to generic Hall C HowTo, task list, web page (Richard, Garth)
553 1 Richard Trotta
554 35 Stephen Kay
*Discussions:*
555
556
* 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
557
* HGC: waiting for re-installation
558
* Trigger checkout: main items to keep in mind: fADC thresholds, timing HMS/SHMS - leading arm, possible rate limitations
559 1 Richard Trotta
* Shifts
560
* Diagnostics scripts and documentation
561
* Personnel schedules
562
563
----
564
565 111 Richard Trotta
h3. June 28, 2018
566 1 Richard Trotta
567
*Links to talks->* "Richard":https://redmine.jlab.org/documents/34
568
569
*Action Items:*
570
571
* Develop and post shift schedule. Send out request. Find out who is KAONLT liaison (Tanja)
572
* Contact potential run coordinators. (Tanja)
573
* Aerogel tray exchange for start of experiment and coordination of future exchanges (Vladimir)
574
* Update runplan and prepare documents needed for shift crew, e.g. run sheets (Garth)
575
* Set up a web page to collect and link from Redmine - How-To documents, initial calibrations, etc. (Garth, Richard)
576
* 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)
577
* Develop trigger/detector checkout plan (Tanja, initial draft)
578
** Are all experts available at run start, experts needed: coincidence timing , Harp Scans, BCM calibrations, ...
579
* 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)
580
* Find out if all aerogel trays needed for experiment can be stored inside Hall C to avoid having to open truck ramp (Vladimir)
581
582
*Analysis Updates:*
583
584
* Ryan 
585
** resolving differences between his analysis and Richard's
586
587
* Richard
588
** 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
589
** 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.
590
591
----
592
593 111 Richard Trotta
h3. May 31, 2018
594 1 Richard Trotta
595 35 Stephen Kay
*Links to talks->* "Samip":https://redmine.jlab.org/documents/30
596 1 Richard Trotta
597 35 Stephen Kay
----
598 1 Richard Trotta
599 111 Richard Trotta
h3. May 17, 2018 
600 1 Richard Trotta
601 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
602 2 Richard Trotta
603 35 Stephen Kay
* Luminosity scans (Richard, Ryan)
604 111 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
605 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
606
** discussion about pre-scale factors
607 1 Richard Trotta
608 35 Stephen Kay
* Discussion about Richard's script extracting and printing information from report files and trees including histograms
609
** Add option for looking at yields with cuts on cointime, target window, and missing mass
610
** Add option to look at real peak vs. background level
611 1 Richard Trotta
612 35 Stephen Kay
* H(e,e'p) kinematics investigation for fall run (Samip)
613
** 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
614 1 Richard Trotta
615 35 Stephen Kay
* *Action Items*
616
** Luminosity scans at low rates from January (Richard)
617
** Luminosity scans from April with corrected efficiencies, e.d. DT (Ryan)
618
** H(e,e'p) and H(e,e') kinematics for upcoming Kaon LT run (Samip)
619
** Kaon LT detailed run plan (Garth, Pete, Tanja)
620
** Preparations, e.g. report files, diagnostic histograms and real time monitoring, shift worker instructions, optimization of trees (all)
621 1 Richard Trotta
622
----
623
624 111 Richard Trotta
h3. May 10, 2018
625 35 Stephen Kay
626 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
627 35 Stephen Kay
628
* Luminosity Scans January 2018 (Richard)
629
** Tracking-based analysis for Runs 1415-1423, .. for now focus on HMS, typical HMS S1X rates are <
630
** Cuts applied: PID for electrons (Cer, Cal), acceptance (delta)
631
** Efficiency calculation was investigated in detail and applied using scalers from trees
632
** Results for carbon (normalized to 30uA) show large variation - need to understand
633
** *Next steps:*
634
*** Double check calculation of computer lifetime, look for differences in TRIG and PRETRIG scalers
635
*** Check stability of pre-scale (Ryan saw changes within runs)
636
*** Check if detector calibrations for runs are implemented correctly
637
*** Analyze with Ryan's cuts
638 1 Richard Trotta
639 35 Stephen Kay
* Luminosity Scans April 2018 (Ryan)
640
** Confirms Richard's earlier finding that scaler-based analysis is not reliable and that it's best to analyze event-by-event
641
** Tracking-based analysis for runs 2073-2095
642
** Cuts applied: PID for electrons (TOF, Cal, Chi2), acceptance (delta and angles), BCM4a
643
** Included most recent detector calibrations in replay of these runs
644
** Efficiencies from report file mainly, may need to update tracking efficiency implementation
645
** Found that calculations of computer deadtime requires different set of scalers for runs from January to those from April 2018
646
** Results show carbon yields consistent with unity within error (0.5% error bars), and boiling for hydrogen and deuterium
647
** *Next steps:*
648 5 Richard Trotta
*** Check tracking efficiency
649 35 Stephen Kay
650
* *Global comments on Luminosity Scans (so far)*
651 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.
652 35 Stephen Kay
** Efficiencies in report files need to be updated, e.g. CPU deadtime (Richard)
653
** Check if BCM4a is the one closest to the target - get a map of the hall (Richard, Ryan)
654
** Uncertainties on current
655
** Detector calibrations
656 1 Richard Trotta
** HMS vs. SHMS
657 35 Stephen Kay
658
* eK+ coincidence time from SIDIS Spring 2018 run (Samip)
659
** Worked with Mark Jones on coincidence time calculation - now available in hcana (see Samip's 10 May 2018 email for more details)
660
** runs used in this analysis: 3423 with Q2=3.1 GeV2 and W=2.78 GeV
661
** Coincidence time spectrum shows peak separations >2 ns corresponding to different accelerator frequency
662
** Missing mass spectra: Kaon peak clearly visible, also see pions even after cuts
663
** Found that pions appear localized in phase space - seems to be due to end point in kinematic phase space
664 1 Richard Trotta
** *Next steps:*
665 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)
666 35 Stephen Kay
667
* Yield normalized ratios from SIDIS (Hem)
668
** Yield ratios of data to MC match well in shape, but normalization seems not quite right
669
** *Next steps:*
670 4 Richard Trotta
*** Check if efficiencies, currents, run time etc. are taken into account correctly
671
672
----
673 35 Stephen Kay
674 111 Richard Trotta
h3. April 26, 2018
675 4 Richard Trotta
676 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
677 4 Richard Trotta
678 35 Stephen Kay
* Discussion luminosity scan analysis (earlier scan) - Richard
679
** 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
680
** Notes on efficiencies in report file:
681
*** DT (EDTM) is not electronic deadtime. Instead use for now 50ns* trigger rate for HMS and 100ns* trigger rate for SHMS
682
*** Cherenkov efficiency seems low (check if that is due to PID, thresholds, pi/e, etc)
683
*** Tracking efficiency needs to be checked
684
*** 3/4 trigger efficiency seems ok
685
* Discussion luminosity scan analysis (later scan) - Ryan
686
** Fewer carbon runs than earlier scan
687
** Shown is a tracking-based analysis using data from the ROOT trees
688 111 Richard Trotta
** First results for carbon, LH3, and LD2, but efficiencies need to be checked
689 35 Stephen Kay
* SIDIS analysis - Hem
690
** Shown is a data/MC comparison for different kinematic settings. Agreement in shape is very good. Normalization has yet to be applied.
691
** Discussion about agreement in z and apparent offset - relation of this offset with spectrometer offset
692
* Analysis of exclusive events in SIDIS - Samip
693
** Shown is a look at the first kaon events in exclusive limit of SIDIS data
694
** Ongoing work on implementing coincidence time into tree
695
* Discussion of run plan, and in particular possible low Q2/low energy
696
** Assume that kaon low Q2=0.4 already included - have kinematics with specified beam energies, if needed
697
** 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
698
** Garth will put this together in a draft email
699
700 12 Richard Trotta
----
701
702 111 Richard Trotta
h3. March 29, 2018
703 12 Richard Trotta
704 35 Stephen Kay
*Links to talks->* "Richard, ":https://redmine.jlab.org/documents/16 "Samip":https://redmine.jlab.org/documents/27
705 13 Richard Trotta
706 35 Stephen Kay
* Details of adding points to fall run plan - will be ready sooner, likely in week of 4/1 (Garth, Samip, Tanja)
707
* Luminosity scans (Ryan, Andres, Richard, Pete)
708
* Macros, SIDIS analysis (Hem, Anashe)
709
* Elastic data (TBD)
710
711 14 Richard Trotta
----
712 18 Richard Trotta
713 111 Richard Trotta
h3. February 22, 2018
714 18 Richard Trotta
715 35 Stephen Kay
*Links to talks->* "Andres":https://redmine.jlab.org/documents/19
716 18 Richard Trotta
717 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.
718
* Brief description of Samip's work - working on coincidence timing decoding with JLab staff and re-optimization of kinematics
719
* Discussion of Richard's slides on run plan kinematics and preparations -
720
** 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
721
** 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
722
** for each setting will need 1-2 shifts for calibrations - need to negotiate with other experiments in run group
723
** kinematics plots W-Q2 show that still need to do some optimization
724
** run sheets: include raster size, update coincidence count labeling, and carbon target labeling
725
* Discussion of next meeting. Garth at JLab 8-16 March - might have meeting during that time.
726 26 Richard Trotta
727 35 Stephen Kay
* *Action Items:*
728
** Post slides/notes from this meeting and procedure to set up hcana in Redmine (Tanja)
729
** Update run sheet and kinematic optimization for W/Q2 (Garth)
730
** Circulate elastic calculations for kinematic settings (Samip)
731
** Continue investigation of elastic data and run plan kinematics (Andres/Richard)
732
** Test software installation instructions (Pete)
733
** 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) 
734 32 Stephen Kay
735
----