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Kaon LT Meetings » History » Version 187

Richard Trotta, 12/16/2020 04:57 PM

1 116 Richard Trotta
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h1. *Kaon LT Meetings*
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5 96 Stephen Kay
Kaon LT collaboration analysis meetings. Please add your talk to the meeting ahead of time. Add the newest meeting to the top of the list!
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7 95 Stephen Kay
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8 113 Richard Trotta
9 1 Richard Trotta
h2. 2020 Meetings
10
11 186 Richard Trotta
h3. December 16, 2020
12 187 Richard Trotta
13
* Ali
14
**
15 186 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1117/KaonLTMeeting_12_16_20.pdf
16
** The issues with the scalers seem to be resolved. Further analysis on other lumi runs needs to be complete but the finish line is in sight.
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* Vijay
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** 
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Next meeting December 16th @ 4:30 EST
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h2. 2020 Meetings
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27 185 Richard Trotta
h3. December 2, 2020
28
 
29
* Carlos
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** 
31
* 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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42 180 Richard Trotta
h3. November 18, 2020
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* Ali
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** 
46 183 Richard Trotta
* "Carlos":https://redmine.jlab.org/attachments/download/1103/LiveTime_Study_cyero.pdf
47 181 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.
48 180 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
51 182 Richard Trotta
** Updated the hallc_replay_lt with parameter files for all coin peaks.
52 180 Richard Trotta
* Vijay
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** 
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55 184 Richard Trotta
Next meeting December 2nd @ 4:30 EST
56 180 Richard Trotta
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h2. 2020 Meetings
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61 178 Richard Trotta
h3. November 4, 2020
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* Ali
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** 
65
* "Richard":https://redmine.jlab.org/attachments/download/1092/KaonLTMeeting11_4_20.pdf
66 179 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.
67 178 Richard Trotta
* Stephen
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** 
69
* Vijay
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** 
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Next meeting November 18th @ 4:30 EST
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75 141 Stephen Kay
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77 170 Richard Trotta
h3. October 28, 2020
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* Ali
80 177 Richard Trotta
** Went over some of his tracking procedures for the report file implementation
81 172 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1091/KaonLTMeeting10_28_20.pdf
82 173 Richard Trotta
** Luminosity analysis continues. There are still some issues but things have improved a bit.
83 171 Stephen Kay
* "Stephen":https://redmine.jlab.org/attachments/download/1090/KaonLT_Meeting_28_10_20.pdf
84
** Discussion of CT peak analysis, progress and outline of what's left to do with this
85 174 Richard Trotta
* Vijay
86 176 Richard Trotta
** Dry run for Mark's hallc meeting tomorrow (10/29)
87 170 Richard Trotta
88 177 Richard Trotta
Next meeting November 4th @ 4:30 EST
89 170 Richard Trotta
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92 164 Richard Trotta
h3. October 14, 2020
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94 168 Richard Trotta
* Ali
95 164 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.
98 167 Richard Trotta
* Stephen
99 164 Richard Trotta
** He has included a demo for using the python analysis script in the README.
100 1 Richard Trotta
101 170 Richard Trotta
Next meeting October 28th @ 4:30 EST
102 164 Richard Trotta
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105 161 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
110 162 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.
111
* 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.
113 161 Richard Trotta
114 163 Richard Trotta
Next meeting October 14th @ 4:30 EST
115 161 Richard Trotta
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118 149 Richard Trotta
h3. September 9, 2020
119 156 Richard Trotta
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* Richard
121 157 Richard Trotta
** Still working on run list, GUI checks
122 156 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
127 158 Richard Trotta
* Vijay
128 156 Richard Trotta
** Nearly finished with HGcer calibrations
129 1 Richard Trotta
130 161 Richard Trotta
Next meeting September 23rd @ 4:30 EST
131 156 Richard Trotta
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h3. August 26, 2020
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136 149 Richard Trotta
*Links to talks->* "Ali":https://redmine.jlab.org/issues/483 "Vijay":https://redmine.jlab.org/issues/479
137 154 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
145 150 Richard Trotta
** Updated the SHMS HGCher analysis. The calibrations are coming along, but a little more work needs to be finished up.
146 1 Richard Trotta
147 156 Richard Trotta
Next meeting September 9 @ 5 EST
148 150 Richard Trotta
149 149 Richard Trotta
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151 144 Richard Trotta
h3. July 29, 2020
152 147 Stephen Kay
153 148 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
154 146 Stephen Kay
155 155 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
159 1 Richard Trotta
160 150 Richard Trotta
Next meeting August 26th @ 4:30 EST
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162 144 Richard Trotta
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164 139 Richard Trotta
h3. July 8, 2020
165 1 Richard Trotta
166 139 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
167 150 Richard Trotta
168 140 Richard Trotta
Next meeting July 29 @ 4:30 EST
169 139 Richard Trotta
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172 132 Richard Trotta
h3. June 24, 2020
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174 143 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
175 137 Richard Trotta
Next meeting July 8th @ 4:30 EST
176 132 Richard Trotta
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179 129 Richard Trotta
h3. June 9, 2020
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181 135 Richard Trotta
*Links to talks->* "Vijay":https://redmine.jlab.org/attachments/download/1006/Vijay_9_June_20.pdf "Ali":https://redmine.jlab.org/attachments/download/1007/KaonLT_Meeting_Jun_9.pdf "Richard":https://redmine.jlab.org/attachments/download/1005/KaonLTMeeting_6_9_20.pdf
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183 131 Richard Trotta
Next meeting June 24th @ 4:30 EST
184 129 Richard Trotta
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h3. May 27, 2020
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189 126 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
190 128 Richard Trotta
191 127 Richard Trotta
Next meeting June 9th @ 4:30 EST
192 125 Richard Trotta
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195 118 Stephen Kay
h3. May 13, 2020
196 124 Richard Trotta
197 138 Stephen Kay
*Links to talks->* "Stephen":https://redmine.jlab.org/attachments/download/993/KaonLT_Meeting_13_05_20.pdf - Python analysis scripts "Richard":https://redmine.jlab.org/attachments/download/998/KaonLTMeeting_5_13_20.pdf "Ali":https://redmine.jlab.org/attachments/download/997/KaonLT_Meeting_May_13.pdf "Vijay":https://redmine.jlab.org/attachments/download/999/Vijay_13_May_20.pdf
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199 127 Richard Trotta
Next meeting May 27th @ 4:30 EST
200 118 Stephen Kay
201 121 Richard Trotta
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203 111 Richard Trotta
h3. April 29, 2020
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205 138 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
206 106 Richard Trotta
207 127 Richard Trotta
Next meeting May 13th @ 4:30 EST
208 106 Richard Trotta
209 1 Richard Trotta
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210 106 Richard Trotta
211 111 Richard Trotta
h3. April 15, 2020
212 104 Richard Trotta
213 102 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/attachments/download/977/KaonLTMeeting_4_15_20.pdf
214 105 Richard Trotta
215 127 Richard Trotta
Next meeting April 29th @ 4:30 EST
216 1 Richard Trotta
217 102 Richard Trotta
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218 95 Stephen Kay
219 111 Richard Trotta
h3. April 1, 2020
220 100 Stephen Kay
221 138 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
222 101 Richard Trotta
223 127 Richard Trotta
Next meeting April 15th @  4:30 EST
224 101 Richard Trotta
225 41 Stephen Kay
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226 93 Richard Trotta
227 111 Richard Trotta
h3. March 18, 2020
228 93 Richard Trotta
229
*Links to talks->* "Richard's EIC Temple Draft 2":https://redmine.jlab.org/attachments/download/942/DRAFT2_mesonSF_EIC_Temple.pdf
230 1 Richard Trotta
231 127 Richard Trotta
Next meeting April 1st @  4:30 EST
232 93 Richard Trotta
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234 91 Richard Trotta
235 111 Richard Trotta
h3. March 11, 2020
236 92 Richard Trotta
237 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
238 94 Richard Trotta
239 127 Richard Trotta
Next meeting March 18th @  4:30 EST
240 91 Richard Trotta
241
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242 88 Richard Trotta
243 111 Richard Trotta
h3. Feb 26, 2020
244 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.
246
* Need to incorporate the latest "BCM updates":https://hallcweb.jlab.org/doc-public/ShowDocument?docid=1034 from Dave Mack.
247 1 Richard Trotta
* Richard should look at the luminosity scalar analysis before and after the BCM changes once he gets his script working again.
248 88 Richard Trotta
**  He is checking with Mark about this while he is down in jlab. 
249 1 Richard Trotta
250 127 Richard Trotta
Next meeting March 11th @  4:30 EST
251 86 Richard Trotta
252 1 Richard Trotta
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253 86 Richard Trotta
254 111 Richard Trotta
h3. Feb 10, 2020 
255 87 Richard Trotta
256 127 Richard Trotta
Next meeting Feb 26th @ 11 am EST
257 86 Richard Trotta
258
----
259 1 Richard Trotta
260 111 Richard Trotta
h3. Jan 22, 2020
261 83 Richard Trotta
262
*Links to talks->* "Richard's Hall C Winter Talk Draft 1":https://redmine.jlab.org/attachments/download/937/KaonLTHallC_WinterTalk2020_Draft1.pdf
263 85 Richard Trotta
264 127 Richard Trotta
Next meeting Feb 10 @ 11 am EST
265 83 Richard Trotta
266 1 Richard Trotta
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267 83 Richard Trotta
268 111 Richard Trotta
h3. Jan 15,2020
269 81 Richard Trotta
270 82 Richard Trotta
*Links to talks->* "Richard's Hall C Winter Talk Outline":https://redmine.jlab.org/attachments/download/936/KaonLTHallC_WinterTalk2020.pdf
271 81 Richard Trotta
272 127 Richard Trotta
Next meeting Jan 22 @ 11 am EST
273 81 Richard Trotta
274
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275 78 Richard Trotta
276 111 Richard Trotta
h3. Jan 8,2020
277 78 Richard Trotta
278 1 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/76
279 79 Richard Trotta
280 1 Richard Trotta
* Richard
281
** 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
283
*** 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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288 113 Richard Trotta
289 112 Richard Trotta
h2. 2019 Meetings
290 80 Richard Trotta
291 141 Stephen Kay
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293 111 Richard Trotta
h3. Dec 17,2019
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295 77 Richard Trotta
Reminder: Mark Jones' commissioning analysis meetings are bi-weekly and announced by Mark
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* Stephen
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** Number of passes finished for HMS calorimeter
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*** Still wiggles in all passes
300
** Finished his report on calibrations, "DC and Calorimeters":https://redmine.jlab.org/documents/74
301
** 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
302
*** CUA will be putting together a similar list
303 1 Richard Trotta
304 77 Richard Trotta
* Richard
305
** Fixed one error issue with SHMS calorimeter calibration code (discussed Dec 10th meeting), but still have one error
306
** PID efficiency script plots are complete, but still some questions he needs to work out before a final version
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*** Eventually need to include tracking into PID efficiencies
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** Pete brought up the question for a number of multi-hits we are getting
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*** (Dead Time)+(Trigger efficiency)-EDTM
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Next meeting will be after the break; Wednesday, January 8th at 3 pm EST
312 77 Richard Trotta
313
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314 72 Richard Trotta
315 111 Richard Trotta
h3. Dec 10,2019
316 72 Richard Trotta
317 74 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/73
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* Garth and Stephen were in the most recent SIDIS meeting
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** Wit had lots of hcana changes but they seem to be critical to our work 
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*** Changes such as new detector classes
322 1 Richard Trotta
** Hopefully Wit will present these in the next commissioning meeting
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324 77 Richard Trotta
* Stephen improved wiggles but still prevalent
325 74 Richard Trotta
326
* Richard finished HGCer calibrations, he concluded that the online parameters are sufficient
327
** He also has been looking at SHMS calorimeter calibrations but has had issues running the scripts. Most likely a pathing issue.
328
** The "tasks":https://redmine.jlab.org/projects/kltexp/wiki/Analysis_Tasks page has been updated with a section for efficiencies. 
329
*** 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.
332 74 Richard Trotta
333 75 Richard Trotta
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334 74 Richard Trotta
335 111 Richard Trotta
h3. Nov 26,2019
336 71 Richard Trotta
337
*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
341
*** Tighter cuts or PID (currently only looks for electrons)
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** Vardan said calorimeter wiggles are an ongoing issue with no current solution
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* Richard
345 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.
346 71 Richard Trotta
*** Richard will pick up looking at the HGCer calibrations from Vijay's scripts. 
347
*** Richard will also be looking at the SHMS calorimeter and with the suggestion of getting some negatively polarized SHMS runs from Hem.
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** The HMS Cherenkov is finished with the conclusion that the calibrations from the online runs are good
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** We can begin looking forward towards efficiencies. 
350
*** Garth suggested that looking at PID may be an advantageous first steps. Precise definitions of these PIDs will need to be logged.
351
*** Clear notes on efficiencies steps will be needed. They will need to be redefined multiple times in multiple ways. 
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* Hem
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** Has been looking at the calorimeter as well. 
355 70 Richard Trotta
** He has seen the second band in the spectra for some runs, we suggested further looks into HMS hodoscope and subsequently reference times. A recalibration will need to be performed.  
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359 111 Richard Trotta
h3. Nov 19,2019
360 1 Richard Trotta
361 70 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
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* Richard
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** Finished up TDC cut paper going through the procedure (found "here":https://redmine.jlab.org/issues/500)
365
** Needed to add Carlos pre-trigger designs to an appendix for the paper which clarifies the introduction section
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* Stephen
368
** Issues with DC calibration for only a few runs during each run period
369
** "wiggles" in HMS calorimeter calibrations for some runs
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*** few runs where HMS cal totally failed (which was dependent on initial parameters)
371
*** Spring looked worse than the rest (surprisingly), but this may be because online calibration wasn't great
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373 2 Richard Trotta
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374 68 Richard Trotta
375 111 Richard Trotta
h3. Nov 5,2019
376 68 Richard Trotta
377
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500
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* Timing update (Stephen)
380
** Reference times between Richard and Stephen are very similar and the GitHub is updated accordingly
381
** Richard is going to add the trigger time cuts once the fall runs are finished (by end of week)
382
** First pass of detector reference time parameter files finished
383 1 Richard Trotta
384 68 Richard Trotta
* Peter's hcana code (Richard and Stephen)
385
** 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
386
*** Richard has emailed Peter about the issue with no response yet (follow-up soon)
387
** 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.
388
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* Calibrations were decided to be done once per shift
390
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* Next meeting schedule...
392 127 Richard Trotta
** Small meetings Nov 12 and Nov 19 (at 3pm EST) so Richard and Stephen can iron out the timing and calibrations
393
** November 26 (at 3pm EST) will be a larger meeting. 
394 68 Richard Trotta
*** This is the rough deadline we made for finishing up calibrations. 
395
*** 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!!
396
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399 111 Richard Trotta
h3. Oct 22,2019
400 62 Richard Trotta
401 64 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
402 62 Richard Trotta
403 65 Richard Trotta
* SHMS Reference Time Amplitude Cuts(Stephen)
404
** Extra peaks in HG from cross-talk and "ghost-bands" due to ADC screw up
405
*** cuts applied on SHMS ADC ref time amplitude (greater than zero) done before any further event selection and histogram filling
406
** This is a temporary fix to "ghost-bands" and cross talk
407
*** Although for HG there is still a small peak. The hodoscope is fine.
408
** The time window is easier to set now.
409
** DC has been fine (since it uses TDC)
410
*** DC calibrations should be good to complete, other detectors need more fixes (i.e. the remaining "ghost-band")
411
** Hodoscope still bad but this might be because of that "ghost-band", needs to be further investigated
412
413 1 Richard Trotta
* Peter's hcana fixes for reference time (Richard)
414 67 Richard Trotta
** Peter implemented changes to hcana
415
** Two major issues...
416 1 Richard Trotta
## Amplitude goes to null and integral is low or negative which causes a rate-dependent efficiency. 
417 67 Richard Trotta
*** Peter has used the average pulse value acquired over a large sample of runs for each detector. 
418 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)
419 67 Richard Trotta
*** Peter created a routine to find the best offset by means of matching TDC and ADC
420
** Richard has been checking for bugs in the code. 
421
*** It seems to be ready to implement, Richard emailed Peter for confirmation on the implementation in our group directory
422
423 1 Richard Trotta
* Calibration of HMS detectors when the timing is agreed upon by Stephen and Richard.
424 67 Richard Trotta
** Besides hodoscope which still has an issue with the script
425 65 Richard Trotta
** Stephen and Richard are having a meeting late next week to determine time window values
426 62 Richard Trotta
*** These will be relatively final, but on the wider side if adjustments need to be made in the future
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428 1 Richard Trotta
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429 61 Richard Trotta
430 111 Richard Trotta
h3. Sep 24,2019
431 61 Richard Trotta
432
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
433 1 Richard Trotta
434 61 Richard Trotta
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435 1 Richard Trotta
436 111 Richard Trotta
h3. Sep 10,2019
437 59 Vijay Kumar
438
*Links to talks->* "Stephen":https://redmine.jlab.org/documents/69 "Ali":https://redmine.jlab.org/documents/72 "Richard":https://redmine.jlab.org/issues/500
439 1 Richard Trotta
440
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441 55 Stephen Kay
442 111 Richard Trotta
h3. August 26, 2019
443 55 Stephen Kay
444
*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
445 1 Richard Trotta
446 54 Richard Trotta
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447
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h3. June 21, 2019
449 54 Richard Trotta
450 1 Richard Trotta
*Links to talks->* "Hallc Talk Outline":https://redmine.jlab.org/documents/60 
451 54 Richard Trotta
452 42 Stephen Kay
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453
454 111 Richard Trotta
h3. June 14, 2019
455 1 Richard Trotta
456 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
457 42 Stephen Kay
458
459 35 Stephen Kay
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460 1 Richard Trotta
461 111 Richard Trotta
h3. June 4, 2019
462 36 Vijay Kumar
463 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
464 35 Stephen Kay
465 1 Richard Trotta
466 35 Stephen Kay
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467 1 Richard Trotta
468 111 Richard Trotta
h3. May 21, 2019
469 1 Richard Trotta
470
*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
471 35 Stephen Kay
472
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473 1 Richard Trotta
474 111 Richard Trotta
h3. May 14, 2019
475 1 Richard Trotta
476 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
477 1 Richard Trotta
478 35 Stephen Kay
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479 1 Richard Trotta
480 111 Richard Trotta
h3. April 30, 2019
481 1 Richard Trotta
482
*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
483 35 Stephen Kay
484 1 Richard Trotta
----
485
486
h3. February 4, 2019
487
488
*Links to talks->* "Richard":https://redmine.jlab.org/documents/43 "Stephen":https://redmine.jlab.org/documents/44
489
490
----
491 113 Richard Trotta
492 112 Richard Trotta
h2. 2018 Meetings
493 141 Stephen Kay
494
----
495 111 Richard Trotta
496
h3. August 21, 2018
497
498 1 Richard Trotta
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
499 35 Stephen Kay
500 1 Richard Trotta
----
501 35 Stephen Kay
502 111 Richard Trotta
h3. August 8, 2018
503 35 Stephen Kay
504
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
505 1 Richard Trotta
506
----
507 35 Stephen Kay
508 111 Richard Trotta
h3. August 3, 2018
509 1 Richard Trotta
510 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383
511
*Links to talks->*
512 1 Richard Trotta
513 35 Stephen Kay
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514 1 Richard Trotta
515 111 Richard Trotta
h3. July 11, 2018
516 1 Richard Trotta
517 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383 #384
518 1 Richard Trotta
519 35 Stephen Kay
*Action items:*
520 1 Richard Trotta
521 35 Stephen Kay
* Update run plan, e.g. add prescales (Garth)
522
* Check on details of: magnet cycling procedure, minimum angles, MCC fringe field steering, beam energy measurements, optics checks (Tanja)
523
* Identify additional run coordinators (Tanja)
524
* Encourage collaborators to take shifts, e.g. FIU (Pete)
525
* Draft email about shifts etc. to collaboration (Tanja)
526
* Develop diagnostic scripts and kaonLT specific (Richard, Ryan)
527
* Continue documentation development, e.g. checklist, shift taker instructions, HowTo or link to generic Hall C HowTo, task list, web page (Richard, Garth)
528 1 Richard Trotta
529 35 Stephen Kay
*Discussions:*
530
531
* 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
532
* HGC: waiting for re-installation
533
* Trigger checkout: main items to keep in mind: fADC thresholds, timing HMS/SHMS - leading arm, possible rate limitations
534 1 Richard Trotta
* Shifts
535
* Diagnostics scripts and documentation
536
* Personnel schedules
537
538
----
539
540 111 Richard Trotta
h3. June 28, 2018
541 1 Richard Trotta
542
*Links to talks->* "Richard":https://redmine.jlab.org/documents/34
543
544
*Action Items:*
545
546
* Develop and post shift schedule. Send out request. Find out who is KAONLT liaison (Tanja)
547
* Contact potential run coordinators. (Tanja)
548
* Aerogel tray exchange for start of experiment and coordination of future exchanges (Vladimir)
549
* Update runplan and prepare documents needed for shift crew, e.g. run sheets (Garth)
550
* Set up a web page to collect and link from Redmine - How-To documents, initial calibrations, etc. (Garth, Richard)
551
* 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)
552
* Develop trigger/detector checkout plan (Tanja, initial draft)
553
** Are all experts available at run start, experts needed: coincidence timing , Harp Scans, BCM calibrations, ...
554
* 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)
555
* Find out if all aerogel trays needed for experiment can be stored inside Hall C to avoid having to open truck ramp (Vladimir)
556
557
*Analysis Updates:*
558
559
* Ryan 
560
** resolving differences between his analysis and Richard's
561
562
* Richard
563
** 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
564
** 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.
565
566
----
567
568 111 Richard Trotta
h3. May 31, 2018
569 1 Richard Trotta
570 35 Stephen Kay
*Links to talks->* "Samip":https://redmine.jlab.org/documents/30
571 1 Richard Trotta
572 35 Stephen Kay
----
573 1 Richard Trotta
574 111 Richard Trotta
h3. May 17, 2018 
575 1 Richard Trotta
576 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
577 2 Richard Trotta
578 35 Stephen Kay
* Luminosity scans (Richard, Ryan)
579 111 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
580 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
581
** discussion about pre-scale factors
582 1 Richard Trotta
583 35 Stephen Kay
* Discussion about Richard's script extracting and printing information from report files and trees including histograms
584
** Add option for looking at yields with cuts on cointime, target window, and missing mass
585
** Add option to look at real peak vs. background level
586 1 Richard Trotta
587 35 Stephen Kay
* H(e,e'p) kinematics investigation for fall run (Samip)
588
** 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
589 1 Richard Trotta
590 35 Stephen Kay
* *Action Items*
591
** Luminosity scans at low rates from January (Richard)
592
** Luminosity scans from April with corrected efficiencies, e.d. DT (Ryan)
593
** H(e,e'p) and H(e,e') kinematics for upcoming Kaon LT run (Samip)
594
** Kaon LT detailed run plan (Garth, Pete, Tanja)
595
** Preparations, e.g. report files, diagnostic histograms and real time monitoring, shift worker instructions, optimization of trees (all)
596 1 Richard Trotta
597
----
598
599 111 Richard Trotta
h3. May 10, 2018
600 35 Stephen Kay
601 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
602 35 Stephen Kay
603
* Luminosity Scans January 2018 (Richard)
604
** Tracking-based analysis for Runs 1415-1423, .. for now focus on HMS, typical HMS S1X rates are <
605
** Cuts applied: PID for electrons (Cer, Cal), acceptance (delta)
606
** Efficiency calculation was investigated in detail and applied using scalers from trees
607
** Results for carbon (normalized to 30uA) show large variation - need to understand
608
** *Next steps:*
609
*** Double check calculation of computer lifetime, look for differences in TRIG and PRETRIG scalers
610
*** Check stability of pre-scale (Ryan saw changes within runs)
611
*** Check if detector calibrations for runs are implemented correctly
612
*** Analyze with Ryan's cuts
613 1 Richard Trotta
614 35 Stephen Kay
* Luminosity Scans April 2018 (Ryan)
615
** Confirms Richard's earlier finding that scaler-based analysis is not reliable and that it's best to analyze event-by-event
616
** Tracking-based analysis for runs 2073-2095
617
** Cuts applied: PID for electrons (TOF, Cal, Chi2), acceptance (delta and angles), BCM4a
618
** Included most recent detector calibrations in replay of these runs
619
** Efficiencies from report file mainly, may need to update tracking efficiency implementation
620
** Found that calculations of computer deadtime requires different set of scalers for runs from January to those from April 2018
621
** Results show carbon yields consistent with unity within error (0.5% error bars), and boiling for hydrogen and deuterium
622
** *Next steps:*
623 5 Richard Trotta
*** Check tracking efficiency
624 35 Stephen Kay
625
* *Global comments on Luminosity Scans (so far)*
626 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.
627 35 Stephen Kay
** Efficiencies in report files need to be updated, e.g. CPU deadtime (Richard)
628
** Check if BCM4a is the one closest to the target - get a map of the hall (Richard, Ryan)
629
** Uncertainties on current
630
** Detector calibrations
631 1 Richard Trotta
** HMS vs. SHMS
632 35 Stephen Kay
633
* eK+ coincidence time from SIDIS Spring 2018 run (Samip)
634
** Worked with Mark Jones on coincidence time calculation - now available in hcana (see Samip's 10 May 2018 email for more details)
635
** runs used in this analysis: 3423 with Q2=3.1 GeV2 and W=2.78 GeV
636
** Coincidence time spectrum shows peak separations >2 ns corresponding to different accelerator frequency
637
** Missing mass spectra: Kaon peak clearly visible, also see pions even after cuts
638
** Found that pions appear localized in phase space - seems to be due to end point in kinematic phase space
639 1 Richard Trotta
** *Next steps:*
640 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)
641 35 Stephen Kay
642
* Yield normalized ratios from SIDIS (Hem)
643
** Yield ratios of data to MC match well in shape, but normalization seems not quite right
644
** *Next steps:*
645 4 Richard Trotta
*** Check if efficiencies, currents, run time etc. are taken into account correctly
646
647
----
648 35 Stephen Kay
649 111 Richard Trotta
h3. April 26, 2018
650 4 Richard Trotta
651 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
652 4 Richard Trotta
653 35 Stephen Kay
* Discussion luminosity scan analysis (earlier scan) - Richard
654
** 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
655
** Notes on efficiencies in report file:
656
*** DT (EDTM) is not electronic deadtime. Instead use for now 50ns* trigger rate for HMS and 100ns* trigger rate for SHMS
657
*** Cherenkov efficiency seems low (check if that is due to PID, thresholds, pi/e, etc)
658
*** Tracking efficiency needs to be checked
659
*** 3/4 trigger efficiency seems ok
660
* Discussion luminosity scan analysis (later scan) - Ryan
661
** Fewer carbon runs than earlier scan
662
** Shown is a tracking-based analysis using data from the ROOT trees
663 111 Richard Trotta
** First results for carbon, LH3, and LD2, but efficiencies need to be checked
664 35 Stephen Kay
* SIDIS analysis - Hem
665
** Shown is a data/MC comparison for different kinematic settings. Agreement in shape is very good. Normalization has yet to be applied.
666
** Discussion about agreement in z and apparent offset - relation of this offset with spectrometer offset
667
* Analysis of exclusive events in SIDIS - Samip
668
** Shown is a look at the first kaon events in exclusive limit of SIDIS data
669
** Ongoing work on implementing coincidence time into tree
670
* Discussion of run plan, and in particular possible low Q2/low energy
671
** Assume that kaon low Q2=0.4 already included - have kinematics with specified beam energies, if needed
672
** 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
673
** Garth will put this together in a draft email
674
675 12 Richard Trotta
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676
677 111 Richard Trotta
h3. March 29, 2018
678 12 Richard Trotta
679 35 Stephen Kay
*Links to talks->* "Richard, ":https://redmine.jlab.org/documents/16 "Samip":https://redmine.jlab.org/documents/27
680 13 Richard Trotta
681 35 Stephen Kay
* Details of adding points to fall run plan - will be ready sooner, likely in week of 4/1 (Garth, Samip, Tanja)
682
* Luminosity scans (Ryan, Andres, Richard, Pete)
683
* Macros, SIDIS analysis (Hem, Anashe)
684
* Elastic data (TBD)
685
686 14 Richard Trotta
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687 18 Richard Trotta
688 111 Richard Trotta
h3. February 22, 2018
689 18 Richard Trotta
690 35 Stephen Kay
*Links to talks->* "Andres":https://redmine.jlab.org/documents/19
691 18 Richard Trotta
692 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.
693
* Brief description of Samip's work - working on coincidence timing decoding with JLab staff and re-optimization of kinematics
694
* Discussion of Richard's slides on run plan kinematics and preparations -
695
** 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
696
** 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
697
** for each setting will need 1-2 shifts for calibrations - need to negotiate with other experiments in run group
698
** kinematics plots W-Q2 show that still need to do some optimization
699
** run sheets: include raster size, update coincidence count labeling, and carbon target labeling
700
* Discussion of next meeting. Garth at JLab 8-16 March - might have meeting during that time.
701 26 Richard Trotta
702 35 Stephen Kay
* *Action Items:*
703
** Post slides/notes from this meeting and procedure to set up hcana in Redmine (Tanja)
704
** Update run sheet and kinematic optimization for W/Q2 (Garth)
705
** Circulate elastic calculations for kinematic settings (Samip)
706
** Continue investigation of elastic data and run plan kinematics (Andres/Richard)
707
** Test software installation instructions (Pete)
708
** 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) 
709 32 Stephen Kay
710
----