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Kaon LT Meetings » History » Version 184

Richard Trotta, 11/18/2020 05:49 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
11 180 Richard Trotta
h3. November 18, 2020
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13
* Ali
14
** 
15 183 Richard Trotta
* "Carlos":https://redmine.jlab.org/attachments/download/1103/LiveTime_Study_cyero.pdf
16 181 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.
17 180 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1101/KaonLTMeeting11_18_20.pdf
18
** Scaler analysis matches Carlos' code now. Overall significant improvements were made through some cut adjustments and incorrect variable definitions.
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* Stephen
20 182 Richard Trotta
** Updated the hallc_replay_lt with parameter files for all coin peaks.
21 180 Richard Trotta
* Vijay
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** 
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24 184 Richard Trotta
Next meeting December 2nd @ 4:30 EST
25 180 Richard Trotta
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h2. 2020 Meetings
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30 178 Richard Trotta
h3. November 4, 2020
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* Ali
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** 
34
* "Richard":https://redmine.jlab.org/attachments/download/1092/KaonLTMeeting11_4_20.pdf
35 179 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.
36 178 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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43
44 141 Stephen Kay
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45
46 170 Richard Trotta
h3. October 28, 2020
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* Ali
49 177 Richard Trotta
** Went over some of his tracking procedures for the report file implementation
50 172 Richard Trotta
* "Richard":https://redmine.jlab.org/attachments/download/1091/KaonLTMeeting10_28_20.pdf
51 173 Richard Trotta
** Luminosity analysis continues. There are still some issues but things have improved a bit.
52 171 Stephen Kay
* "Stephen":https://redmine.jlab.org/attachments/download/1090/KaonLT_Meeting_28_10_20.pdf
53
** Discussion of CT peak analysis, progress and outline of what's left to do with this
54 174 Richard Trotta
* Vijay
55 176 Richard Trotta
** Dry run for Mark's hallc meeting tomorrow (10/29)
56 170 Richard Trotta
57 177 Richard Trotta
Next meeting November 4th @ 4:30 EST
58 170 Richard Trotta
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61 164 Richard Trotta
h3. October 14, 2020
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63 168 Richard Trotta
* Ali
64 164 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.
67 167 Richard Trotta
* Stephen
68 164 Richard Trotta
** He has included a demo for using the python analysis script in the README.
69 1 Richard Trotta
70 170 Richard Trotta
Next meeting October 28th @ 4:30 EST
71 164 Richard Trotta
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74 161 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
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** Showed some slides from u-channel meeting of omega and proton MM  plots. Then discussed some ideas for dealing with the hole in the HGCer.
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* Petr
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** Data fitting algorithm based on E.H. Bellamy paper. Extracts PMT spectra from ROOT file and makes a 1D projection histogram.
82 161 Richard Trotta
83 163 Richard Trotta
Next meeting October 14th @ 4:30 EST
84 161 Richard Trotta
85
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87 149 Richard Trotta
h3. September 9, 2020
88 156 Richard Trotta
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* Richard
90 157 Richard Trotta
** Still working on run list, GUI checks
91 156 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
96 158 Richard Trotta
* Vijay
97 156 Richard Trotta
** Nearly finished with HGcer calibrations
98 1 Richard Trotta
99 161 Richard Trotta
Next meeting September 23rd @ 4:30 EST
100 156 Richard Trotta
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h3. August 26, 2020
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105 149 Richard Trotta
*Links to talks->* "Ali":https://redmine.jlab.org/issues/483 "Vijay":https://redmine.jlab.org/issues/479
106 154 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
114 150 Richard Trotta
** Updated the SHMS HGCher analysis. The calibrations are coming along, but a little more work needs to be finished up.
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116 156 Richard Trotta
Next meeting September 9 @ 5 EST
117 150 Richard Trotta
118 149 Richard Trotta
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120 144 Richard Trotta
h3. July 29, 2020
121 147 Stephen Kay
122 148 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
123 146 Stephen Kay
124 155 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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129 150 Richard Trotta
Next meeting August 26th @ 4:30 EST
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131 144 Richard Trotta
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133 139 Richard Trotta
h3. July 8, 2020
134 1 Richard Trotta
135 139 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
136 150 Richard Trotta
137 140 Richard Trotta
Next meeting July 29 @ 4:30 EST
138 139 Richard Trotta
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141 132 Richard Trotta
h3. June 24, 2020
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*Links to talks->* "Vijay":https://redmine.jlab.org/attachments/download/1014/Vijay_24_June_20.pdf "Richard":https://redmine.jlab.org/attachments/download/1013/KaonLTMeeting_6_24_20.pdf
144 137 Richard Trotta
Next meeting July 8th @ 4:30 EST
145 132 Richard Trotta
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148 129 Richard Trotta
h3. June 9, 2020
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150 135 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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152 131 Richard Trotta
Next meeting June 24th @ 4:30 EST
153 129 Richard Trotta
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h3. May 27, 2020
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158 126 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
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160 127 Richard Trotta
Next meeting June 9th @ 4:30 EST
161 125 Richard Trotta
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164 118 Stephen Kay
h3. May 13, 2020
165 124 Richard Trotta
166 138 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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168 127 Richard Trotta
Next meeting May 27th @ 4:30 EST
169 118 Stephen Kay
170 121 Richard Trotta
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172 111 Richard Trotta
h3. April 29, 2020
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174 138 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
175 106 Richard Trotta
176 127 Richard Trotta
Next meeting May 13th @ 4:30 EST
177 106 Richard Trotta
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179 106 Richard Trotta
180 111 Richard Trotta
h3. April 15, 2020
181 104 Richard Trotta
182 102 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/attachments/download/977/KaonLTMeeting_4_15_20.pdf
183 105 Richard Trotta
184 127 Richard Trotta
Next meeting April 29th @ 4:30 EST
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186 102 Richard Trotta
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187 95 Stephen Kay
188 111 Richard Trotta
h3. April 1, 2020
189 100 Stephen Kay
190 138 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
191 101 Richard Trotta
192 127 Richard Trotta
Next meeting April 15th @  4:30 EST
193 101 Richard Trotta
194 41 Stephen Kay
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195 93 Richard Trotta
196 111 Richard Trotta
h3. March 18, 2020
197 93 Richard Trotta
198
*Links to talks->* "Richard's EIC Temple Draft 2":https://redmine.jlab.org/attachments/download/942/DRAFT2_mesonSF_EIC_Temple.pdf
199 1 Richard Trotta
200 127 Richard Trotta
Next meeting April 1st @  4:30 EST
201 93 Richard Trotta
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203 91 Richard Trotta
204 111 Richard Trotta
h3. March 11, 2020
205 92 Richard Trotta
206 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
207 94 Richard Trotta
208 127 Richard Trotta
Next meeting March 18th @  4:30 EST
209 91 Richard Trotta
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211 88 Richard Trotta
212 111 Richard Trotta
h3. Feb 26, 2020
213 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.
215
* Need to incorporate the latest "BCM updates":https://hallcweb.jlab.org/doc-public/ShowDocument?docid=1034 from Dave Mack.
216 1 Richard Trotta
* Richard should look at the luminosity scalar analysis before and after the BCM changes once he gets his script working again.
217 88 Richard Trotta
**  He is checking with Mark about this while he is down in jlab. 
218 1 Richard Trotta
219 127 Richard Trotta
Next meeting March 11th @  4:30 EST
220 86 Richard Trotta
221 1 Richard Trotta
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222 86 Richard Trotta
223 111 Richard Trotta
h3. Feb 10, 2020 
224 87 Richard Trotta
225 127 Richard Trotta
Next meeting Feb 26th @ 11 am EST
226 86 Richard Trotta
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228 1 Richard Trotta
229 111 Richard Trotta
h3. Jan 22, 2020
230 83 Richard Trotta
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*Links to talks->* "Richard's Hall C Winter Talk Draft 1":https://redmine.jlab.org/attachments/download/937/KaonLTHallC_WinterTalk2020_Draft1.pdf
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233 127 Richard Trotta
Next meeting Feb 10 @ 11 am EST
234 83 Richard Trotta
235 1 Richard Trotta
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236 83 Richard Trotta
237 111 Richard Trotta
h3. Jan 15,2020
238 81 Richard Trotta
239 82 Richard Trotta
*Links to talks->* "Richard's Hall C Winter Talk Outline":https://redmine.jlab.org/attachments/download/936/KaonLTHallC_WinterTalk2020.pdf
240 81 Richard Trotta
241 127 Richard Trotta
Next meeting Jan 22 @ 11 am EST
242 81 Richard Trotta
243
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244 78 Richard Trotta
245 111 Richard Trotta
h3. Jan 8,2020
246 78 Richard Trotta
247 1 Richard Trotta
*Links to talks->* "Richard":https://redmine.jlab.org/documents/76
248 79 Richard Trotta
249 1 Richard Trotta
* Richard
250
** PID efficiency script is coming together
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*** Tighter cuts and cuts on timing, beta, etc. will be needed for cleaner electron cuts
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*** Hcal cut should be changed to cut around the mean normalized value instead of cutting above or below it only. This will assure electrons aren't lost.
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Next meeting will be January 15th at 4 pm EST 
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257 113 Richard Trotta
258 112 Richard Trotta
h2. 2019 Meetings
259 80 Richard Trotta
260 141 Stephen Kay
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262 111 Richard Trotta
h3. Dec 17,2019
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264 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
268
*** Still wiggles in all passes
269
** Finished his report on calibrations, "DC and Calorimeters":https://redmine.jlab.org/documents/74
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** Put together a list of people's jobs from Regina over the next couple of months, "Regina Analysis Tasks":https://redmine.jlab.org/documents/75
271
*** CUA will be putting together a similar list
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* Richard
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** Fixed one error issue with SHMS calorimeter calibration code (discussed Dec 10th meeting), but still have one error
275
** PID efficiency script plots are complete, but still some questions he needs to work out before a final version
276
*** Eventually need to include tracking into PID efficiencies
277
** 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
281 77 Richard Trotta
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283 72 Richard Trotta
284 111 Richard Trotta
h3. Dec 10,2019
285 72 Richard Trotta
286 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 
290
*** Changes such as new detector classes
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** Hopefully Wit will present these in the next commissioning meeting
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293 77 Richard Trotta
* Stephen improved wiggles but still prevalent
294 74 Richard Trotta
295
* Richard finished HGCer calibrations, he concluded that the online parameters are sufficient
296
** He also has been looking at SHMS calorimeter calibrations but has had issues running the scripts. Most likely a pathing issue.
297
** The "tasks":https://redmine.jlab.org/projects/kltexp/wiki/Analysis_Tasks page has been updated with a section for efficiencies. 
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*** 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.
301 74 Richard Trotta
302 75 Richard Trotta
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303 74 Richard Trotta
304 111 Richard Trotta
h3. Nov 26,2019
305 71 Richard Trotta
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*Links to talks->* "Richard":https://redmine.jlab.org/issues/480
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* Stephen
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** DC SHMS, small-angle has poor performance
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*** Tighter cuts or PID (currently only looks for electrons)
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** Vardan said calorimeter wiggles are an ongoing issue with no current solution
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* Richard
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** The calibrations are nearing completion with only the HG Cherenkov and SHMS calorimeter yet to be finished. There are also smaller issues with some DC and HMS calorimeter runs.
315 71 Richard Trotta
*** Richard will pick up looking at the HGCer calibrations from Vijay's scripts. 
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*** 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
318
** We can begin looking forward towards efficiencies. 
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*** Garth suggested that looking at PID may be an advantageous first steps. Precise definitions of these PIDs will need to be logged.
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*** Clear notes on efficiencies steps will be needed. They will need to be redefined multiple times in multiple ways. 
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* Hem
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** Has been looking at the calorimeter as well. 
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** He has seen the second band in the spectra for some runs, we suggested further looks into HMS hodoscope and subsequently reference times. A recalibration will need to be performed.  
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h3. Nov 19,2019
329 1 Richard Trotta
330 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)
334
** Needed to add Carlos pre-trigger designs to an appendix for the paper which clarifies the introduction section
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* Stephen
337
** Issues with DC calibration for only a few runs during each run period
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** "wiggles" in HMS calorimeter calibrations for some runs
339
*** few runs where HMS cal totally failed (which was dependent on initial parameters)
340
*** Spring looked worse than the rest (surprisingly), but this may be because online calibration wasn't great
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344 111 Richard Trotta
h3. Nov 5,2019
345 68 Richard Trotta
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*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500
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* Timing update (Stephen)
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** Reference times between Richard and Stephen are very similar and the GitHub is updated accordingly
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** Richard is going to add the trigger time cuts once the fall runs are finished (by end of week)
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** First pass of detector reference time parameter files finished
352 1 Richard Trotta
353 68 Richard Trotta
* Peter's hcana code (Richard and Stephen)
354
** 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
355
*** Richard has emailed Peter about the issue with no response yet (follow-up soon)
356
** This means we still need the reference time amplitude cut with Peter's code but using just the amplitude cut with Mark's latest version of hcana should be sufficient for calibrations.
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* Calibrations were decided to be done once per shift
359
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* Next meeting schedule...
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** Small meetings Nov 12 and Nov 19 (at 3pm EST) so Richard and Stephen can iron out the timing and calibrations
362
** November 26 (at 3pm EST) will be a larger meeting. 
363 68 Richard Trotta
*** This is the rough deadline we made for finishing up calibrations. 
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*** This should be sufficient for all detectors (although hodoscope and HG which may persist). The ultimate goal is for all calibrations to be finished up before Winter break!!
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h3. Oct 22,2019
369 62 Richard Trotta
370 64 Richard Trotta
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
371 62 Richard Trotta
372 65 Richard Trotta
* SHMS Reference Time Amplitude Cuts(Stephen)
373
** Extra peaks in HG from cross-talk and "ghost-bands" due to ADC screw up
374
*** cuts applied on SHMS ADC ref time amplitude (greater than zero) done before any further event selection and histogram filling
375
** This is a temporary fix to "ghost-bands" and cross talk
376
*** Although for HG there is still a small peak. The hodoscope is fine.
377
** The time window is easier to set now.
378
** DC has been fine (since it uses TDC)
379
*** DC calibrations should be good to complete, other detectors need more fixes (i.e. the remaining "ghost-band")
380
** Hodoscope still bad but this might be because of that "ghost-band", needs to be further investigated
381
382 1 Richard Trotta
* Peter's hcana fixes for reference time (Richard)
383 67 Richard Trotta
** Peter implemented changes to hcana
384
** Two major issues...
385 1 Richard Trotta
## Amplitude goes to null and integral is low or negative which causes a rate-dependent efficiency. 
386 67 Richard Trotta
*** Peter has used the average pulse value acquired over a large sample of runs for each detector. 
387 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)
388 67 Richard Trotta
*** Peter created a routine to find the best offset by means of matching TDC and ADC
389
** Richard has been checking for bugs in the code. 
390
*** It seems to be ready to implement, Richard emailed Peter for confirmation on the implementation in our group directory
391
392 1 Richard Trotta
* Calibration of HMS detectors when the timing is agreed upon by Stephen and Richard.
393 67 Richard Trotta
** Besides hodoscope which still has an issue with the script
394 65 Richard Trotta
** Stephen and Richard are having a meeting late next week to determine time window values
395 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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397 1 Richard Trotta
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399 111 Richard Trotta
h3. Sep 24,2019
400 61 Richard Trotta
401
*Links to talks->* "Stephen":https://redmine.jlab.org/issues/500 "Richard":https://redmine.jlab.org/issues/500
402 1 Richard Trotta
403 61 Richard Trotta
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404 1 Richard Trotta
405 111 Richard Trotta
h3. Sep 10,2019
406 59 Vijay Kumar
407
*Links to talks->* "Stephen":https://redmine.jlab.org/documents/69 "Ali":https://redmine.jlab.org/documents/72 "Richard":https://redmine.jlab.org/issues/500
408 1 Richard Trotta
409
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410 55 Stephen Kay
411 111 Richard Trotta
h3. August 26, 2019
412 55 Stephen Kay
413
*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
414 1 Richard Trotta
415 54 Richard Trotta
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h3. June 21, 2019
418 54 Richard Trotta
419 1 Richard Trotta
*Links to talks->* "Hallc Talk Outline":https://redmine.jlab.org/documents/60 
420 54 Richard Trotta
421 42 Stephen Kay
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422
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h3. June 14, 2019
424 1 Richard Trotta
425 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
426 42 Stephen Kay
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428 35 Stephen Kay
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429 1 Richard Trotta
430 111 Richard Trotta
h3. June 4, 2019
431 36 Vijay Kumar
432 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
433 35 Stephen Kay
434 1 Richard Trotta
435 35 Stephen Kay
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436 1 Richard Trotta
437 111 Richard Trotta
h3. May 21, 2019
438 1 Richard Trotta
439
*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
440 35 Stephen Kay
441
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442 1 Richard Trotta
443 111 Richard Trotta
h3. May 14, 2019
444 1 Richard Trotta
445 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
446 1 Richard Trotta
447 35 Stephen Kay
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448 1 Richard Trotta
449 111 Richard Trotta
h3. April 30, 2019
450 1 Richard Trotta
451
*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
452 35 Stephen Kay
453 1 Richard Trotta
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454
455
h3. February 4, 2019
456
457
*Links to talks->* "Richard":https://redmine.jlab.org/documents/43 "Stephen":https://redmine.jlab.org/documents/44
458
459
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460 113 Richard Trotta
461 112 Richard Trotta
h2. 2018 Meetings
462 141 Stephen Kay
463
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464 111 Richard Trotta
465
h3. August 21, 2018
466
467 1 Richard Trotta
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
468 35 Stephen Kay
469 1 Richard Trotta
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470 35 Stephen Kay
471 111 Richard Trotta
h3. August 8, 2018
472 35 Stephen Kay
473
*Ongoing Tasks->* #381 #382 #383 #404 #405 #406
474 1 Richard Trotta
475
----
476 35 Stephen Kay
477 111 Richard Trotta
h3. August 3, 2018
478 1 Richard Trotta
479 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383
480
*Links to talks->*
481 1 Richard Trotta
482 35 Stephen Kay
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483 1 Richard Trotta
484 111 Richard Trotta
h3. July 11, 2018
485 1 Richard Trotta
486 35 Stephen Kay
*Ongoing Tasks->* #381 #382 #383 #384
487 1 Richard Trotta
488 35 Stephen Kay
*Action items:*
489 1 Richard Trotta
490 35 Stephen Kay
* Update run plan, e.g. add prescales (Garth)
491
* Check on details of: magnet cycling procedure, minimum angles, MCC fringe field steering, beam energy measurements, optics checks (Tanja)
492
* Identify additional run coordinators (Tanja)
493
* Encourage collaborators to take shifts, e.g. FIU (Pete)
494
* Draft email about shifts etc. to collaboration (Tanja)
495
* Develop diagnostic scripts and kaonLT specific (Richard, Ryan)
496
* Continue documentation development, e.g. checklist, shift taker instructions, HowTo or link to generic Hall C HowTo, task list, web page (Richard, Garth)
497 1 Richard Trotta
498 35 Stephen Kay
*Discussions:*
499
500
* 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
501
* HGC: waiting for re-installation
502
* Trigger checkout: main items to keep in mind: fADC thresholds, timing HMS/SHMS - leading arm, possible rate limitations
503 1 Richard Trotta
* Shifts
504
* Diagnostics scripts and documentation
505
* Personnel schedules
506
507
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508
509 111 Richard Trotta
h3. June 28, 2018
510 1 Richard Trotta
511
*Links to talks->* "Richard":https://redmine.jlab.org/documents/34
512
513
*Action Items:*
514
515
* Develop and post shift schedule. Send out request. Find out who is KAONLT liaison (Tanja)
516
* Contact potential run coordinators. (Tanja)
517
* Aerogel tray exchange for start of experiment and coordination of future exchanges (Vladimir)
518
* Update runplan and prepare documents needed for shift crew, e.g. run sheets (Garth)
519
* Set up a web page to collect and link from Redmine - How-To documents, initial calibrations, etc. (Garth, Richard)
520
* 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)
521
* Develop trigger/detector checkout plan (Tanja, initial draft)
522
** Are all experts available at run start, experts needed: coincidence timing , Harp Scans, BCM calibrations, ...
523
* 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)
524
* Find out if all aerogel trays needed for experiment can be stored inside Hall C to avoid having to open truck ramp (Vladimir)
525
526
*Analysis Updates:*
527
528
* Ryan 
529
** resolving differences between his analysis and Richard's
530
531
* Richard
532
** 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
533
** 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.
534
535
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536
537 111 Richard Trotta
h3. May 31, 2018
538 1 Richard Trotta
539 35 Stephen Kay
*Links to talks->* "Samip":https://redmine.jlab.org/documents/30
540 1 Richard Trotta
541 35 Stephen Kay
----
542 1 Richard Trotta
543 111 Richard Trotta
h3. May 17, 2018 
544 1 Richard Trotta
545 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
546 2 Richard Trotta
547 35 Stephen Kay
* Luminosity scans (Richard, Ryan)
548 111 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
549 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
550
** discussion about pre-scale factors
551 1 Richard Trotta
552 35 Stephen Kay
* Discussion about Richard's script extracting and printing information from report files and trees including histograms
553
** Add option for looking at yields with cuts on cointime, target window, and missing mass
554
** Add option to look at real peak vs. background level
555 1 Richard Trotta
556 35 Stephen Kay
* H(e,e'p) kinematics investigation for fall run (Samip)
557
** 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
558 1 Richard Trotta
559 35 Stephen Kay
* *Action Items*
560
** Luminosity scans at low rates from January (Richard)
561
** Luminosity scans from April with corrected efficiencies, e.d. DT (Ryan)
562
** H(e,e'p) and H(e,e') kinematics for upcoming Kaon LT run (Samip)
563
** Kaon LT detailed run plan (Garth, Pete, Tanja)
564
** Preparations, e.g. report files, diagnostic histograms and real time monitoring, shift worker instructions, optimization of trees (all)
565 1 Richard Trotta
566
----
567
568 111 Richard Trotta
h3. May 10, 2018
569 35 Stephen Kay
570 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
571 35 Stephen Kay
572
* Luminosity Scans January 2018 (Richard)
573
** Tracking-based analysis for Runs 1415-1423, .. for now focus on HMS, typical HMS S1X rates are <
574
** Cuts applied: PID for electrons (Cer, Cal), acceptance (delta)
575
** Efficiency calculation was investigated in detail and applied using scalers from trees
576
** Results for carbon (normalized to 30uA) show large variation - need to understand
577
** *Next steps:*
578
*** Double check calculation of computer lifetime, look for differences in TRIG and PRETRIG scalers
579
*** Check stability of pre-scale (Ryan saw changes within runs)
580
*** Check if detector calibrations for runs are implemented correctly
581
*** Analyze with Ryan's cuts
582 1 Richard Trotta
583 35 Stephen Kay
* Luminosity Scans April 2018 (Ryan)
584
** Confirms Richard's earlier finding that scaler-based analysis is not reliable and that it's best to analyze event-by-event
585
** Tracking-based analysis for runs 2073-2095
586
** Cuts applied: PID for electrons (TOF, Cal, Chi2), acceptance (delta and angles), BCM4a
587
** Included most recent detector calibrations in replay of these runs
588
** Efficiencies from report file mainly, may need to update tracking efficiency implementation
589
** Found that calculations of computer deadtime requires different set of scalers for runs from January to those from April 2018
590
** Results show carbon yields consistent with unity within error (0.5% error bars), and boiling for hydrogen and deuterium
591
** *Next steps:*
592 5 Richard Trotta
*** Check tracking efficiency
593 35 Stephen Kay
594
* *Global comments on Luminosity Scans (so far)*
595 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.
596 35 Stephen Kay
** Efficiencies in report files need to be updated, e.g. CPU deadtime (Richard)
597
** Check if BCM4a is the one closest to the target - get a map of the hall (Richard, Ryan)
598
** Uncertainties on current
599
** Detector calibrations
600 1 Richard Trotta
** HMS vs. SHMS
601 35 Stephen Kay
602
* eK+ coincidence time from SIDIS Spring 2018 run (Samip)
603
** Worked with Mark Jones on coincidence time calculation - now available in hcana (see Samip's 10 May 2018 email for more details)
604
** runs used in this analysis: 3423 with Q2=3.1 GeV2 and W=2.78 GeV
605
** Coincidence time spectrum shows peak separations >2 ns corresponding to different accelerator frequency
606
** Missing mass spectra: Kaon peak clearly visible, also see pions even after cuts
607
** Found that pions appear localized in phase space - seems to be due to end point in kinematic phase space
608 1 Richard Trotta
** *Next steps:*
609 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)
610 35 Stephen Kay
611
* Yield normalized ratios from SIDIS (Hem)
612
** Yield ratios of data to MC match well in shape, but normalization seems not quite right
613
** *Next steps:*
614 4 Richard Trotta
*** Check if efficiencies, currents, run time etc. are taken into account correctly
615
616
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617 35 Stephen Kay
618 111 Richard Trotta
h3. April 26, 2018
619 4 Richard Trotta
620 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
621 4 Richard Trotta
622 35 Stephen Kay
* Discussion luminosity scan analysis (earlier scan) - Richard
623
** 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
624
** Notes on efficiencies in report file:
625
*** DT (EDTM) is not electronic deadtime. Instead use for now 50ns* trigger rate for HMS and 100ns* trigger rate for SHMS
626
*** Cherenkov efficiency seems low (check if that is due to PID, thresholds, pi/e, etc)
627
*** Tracking efficiency needs to be checked
628
*** 3/4 trigger efficiency seems ok
629
* Discussion luminosity scan analysis (later scan) - Ryan
630
** Fewer carbon runs than earlier scan
631
** Shown is a tracking-based analysis using data from the ROOT trees
632 111 Richard Trotta
** First results for carbon, LH3, and LD2, but efficiencies need to be checked
633 35 Stephen Kay
* SIDIS analysis - Hem
634
** Shown is a data/MC comparison for different kinematic settings. Agreement in shape is very good. Normalization has yet to be applied.
635
** Discussion about agreement in z and apparent offset - relation of this offset with spectrometer offset
636
* Analysis of exclusive events in SIDIS - Samip
637
** Shown is a look at the first kaon events in exclusive limit of SIDIS data
638
** Ongoing work on implementing coincidence time into tree
639
* Discussion of run plan, and in particular possible low Q2/low energy
640
** Assume that kaon low Q2=0.4 already included - have kinematics with specified beam energies, if needed
641
** 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
642
** Garth will put this together in a draft email
643
644 12 Richard Trotta
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645
646 111 Richard Trotta
h3. March 29, 2018
647 12 Richard Trotta
648 35 Stephen Kay
*Links to talks->* "Richard, ":https://redmine.jlab.org/documents/16 "Samip":https://redmine.jlab.org/documents/27
649 13 Richard Trotta
650 35 Stephen Kay
* Details of adding points to fall run plan - will be ready sooner, likely in week of 4/1 (Garth, Samip, Tanja)
651
* Luminosity scans (Ryan, Andres, Richard, Pete)
652
* Macros, SIDIS analysis (Hem, Anashe)
653
* Elastic data (TBD)
654
655 14 Richard Trotta
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656 18 Richard Trotta
657 111 Richard Trotta
h3. February 22, 2018
658 18 Richard Trotta
659 35 Stephen Kay
*Links to talks->* "Andres":https://redmine.jlab.org/documents/19
660 18 Richard Trotta
661 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.
662
* Brief description of Samip's work - working on coincidence timing decoding with JLab staff and re-optimization of kinematics
663
* Discussion of Richard's slides on run plan kinematics and preparations -
664
** 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
665
** 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
666
** for each setting will need 1-2 shifts for calibrations - need to negotiate with other experiments in run group
667
** kinematics plots W-Q2 show that still need to do some optimization
668
** run sheets: include raster size, update coincidence count labeling, and carbon target labeling
669
* Discussion of next meeting. Garth at JLab 8-16 March - might have meeting during that time.
670 26 Richard Trotta
671 35 Stephen Kay
* *Action Items:*
672
** Post slides/notes from this meeting and procedure to set up hcana in Redmine (Tanja)
673
** Update run sheet and kinematic optimization for W/Q2 (Garth)
674
** Circulate elastic calculations for kinematic settings (Samip)
675
** Continue investigation of elastic data and run plan kinematics (Andres/Richard)
676
** Test software installation instructions (Pete)
677
** 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) 
678 32 Stephen Kay
679
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