Difference between revisions of "20191217-PREX2-Analysis"

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Back to [[Main_Page|Main Page]] >> [[PREX2_Analysis]]  
 
Back to [[Main_Page|Main Page]] >> [[PREX2_Analysis]]  
  
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[[20191125-PREX2-Analysis|previous meeting]] <<  >> [[20191209-PREX2-Analysis|following meeting]]
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[[20191125-PREX2-Analysis|previous meeting]] <<  >> [[20200107-PREX2-Analysis|following meeting]]
  
 
== Logistic information ==
 
== Logistic information ==
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   Toll-Free Number (U.S.&  Canada):  888-240-2560
 
   Toll-Free Number (U.S.&  Canada):  888-240-2560
 
   International toll number:        408-740-7256
 
   International toll number:        408-740-7256
−
   Bluejeans CODE:                  385 600 867
+
   Bluejeans CODE:                  640 228 314
 
   Bluejeans link: https://bluejeans.com/640228314
 
   Bluejeans link: https://bluejeans.com/640228314
−
 
−
This meeting immediately precedes the [[Analyzer_Meeting|JAPAN meeting]], and uses the same room and BlueJeans reservations.
 
  
 
== Agenda ==
 
== Agenda ==
 
=== PREX Respin ===
 
=== PREX Respin ===
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#  PREX-2 runlist spreadsheet:  [https://docs.google.com/spreadsheets/d/1Y6qR_h4oW4qNmbtdpo2TIX2u_TI5qjRUZIDyEroMfl0/edit#gid=218524552]  [https://github.com/leafybillow/prex-runlist Github repo]
 
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#* 
 
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#  Weibin and Tao:  cuts
 
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#*  Question raised in [https://github.com/JeffersonLab/japan/pull/258 PR258]---File prex_maindet_eventcuts.3453-3582.map has a lower limit on the usl normalized signal.  Have we verified that's a good level for that cut?
 
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#*
 
 
# Robert: pedestals
 
# Robert: pedestals
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#*   
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#*  RR: we need to check the quality of the pedestals using the PITA scans. CP: will work with Robert when he has time.
 
# Victoria: beam modulation (raw data quality, residuals)
 
# Victoria: beam modulation (raw data quality, residuals)
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#*
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#* PK: we need the first good slopes for at least 2 slugs. VO: will have it done before lunch. PK: will work with Robert on this.
 +
#* VO: will try to get it all done within a week for the rest of the slopes.
  
 
===  Analysis projects ===
 
===  Analysis projects ===
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# Tao : additional combined plots looking at statistical self-consistency [https://github.com/leafybillow/prex-archive Git-repo]
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# Yufan: [http://ace.phys.virginia.edu/HAPPEX/3972 haplog3972] [http://ace.phys.virginia.edu/HAPPEX/3968 haplog3968]
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#* Change of how pitts are defined to only have one Wien state.
+
#* YC: using Tao's updated run list; removed runs where the analog BCM were bad or unplugged; removed runs that have less than 5k events and DD RMS > 200; 3968 shows the RMS distributions; CP: could you combine the different pdfs to have the cuts and distributions together for each DD? YC: will do
−
#*
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#* KP: looking at the mean and error on mean and some of these are 2-3 sigma away from 0. We need to understand if there is a particular combination that shows a particular pull. CP: there are some runs that have a large Aq. CC: we should take a closer look at those runs.
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# Weibin and Tao: table of cuts.  [https://docs.google.com/spreadsheets/d/16558eb2Dzvj3cQU7qVttCbvvyVldmV0tvzKSemPSve4/edit?usp=sharing]
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#* CP: please fix the fitting bug; summarize the results of the fit in a table. KP: also identify the runs with large pulls and investigate them to see if they have anything that tells us why they have a large pull
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#*  
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# Devika:
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# Robert: pedestals
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#* CP: she is trying to do regression of BPMs with other BPMs. She got the machinary working and will start work soon.  
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#*
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# Tao: "regressed charge asymmetry" [http://ace.phys.virginia.edu/HAPPEX/3974 haplog3874][http://ace.phys.virginia.edu/HAPPEX/3975 haplog3975]
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# Victoria: beam modulation (raw data quality, residuals)
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#* TY: plotting the different charge asymmetry width (regressed with BPMs). there is a clear separation for some runs. CP: I'd argue that for those runs the BPMs are sensitive to charge.
−
#*
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#* TY: looked at Compton asymmetric backgrounds and tried to correlate with this issue. KP: 90Hz noise clipping on the master slip seems to show up both in the main analysis and the Compton!?; or the beam tune that left us sensitive to the 90Hz noise.
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# Devi: blinded tubes
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#* CC: there doesn't seem to be a shift in these runs for the corrected mean.
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#*
 
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# BCM & DD resolution
 
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#* 
 
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# stripline and cavity and complementary bpm resolution and performance.  
 
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#* 
 
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# Overloaded regression (Tao?)
 
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#*
 
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# Multiplet plots: [http://ace.phys.virginia.edu/HAPPEX/3936 haplog3936]
 
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#*
 
  
 
== Present ==
 
== Present ==
−
 
+
*JLab:
−
 
+
** Don J, Ryan R, Dmitrii N , Dustin M, Devi A, Caryn P, Cameron C,
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Phone:   
+
* Phone:   
−
 
+
** Eric K, Jinlong Z, Kent P, Paul K, Rakitha B, Robert R, Victoria O, Ye T, Yufan C, David A, Sakib R, Sanghwa P, Weibin Z
 
===Excused===
 
===Excused===
  

Latest revision as of 10:22, 6 January 2020

Back to Main Page >> PREX2_Analysis

previous meeting << >> following meeting

Logistic information

Meeting room at JLab: Counting house conference room 

 BlueJeans calling instructions:
 Toll-Free Number (U.S.&  Canada):  888-240-2560
 International toll number:         408-740-7256
 Bluejeans CODE:                  640 228 314
 Bluejeans link: https://bluejeans.com/640228314

Agenda

PREX Respin

  1. Robert: pedestals
    • RR: we need to check the quality of the pedestals using the PITA scans. CP: will work with Robert when he has time.
  2. Victoria: beam modulation (raw data quality, residuals)
    • PK: we need the first good slopes for at least 2 slugs. VO: will have it done before lunch. PK: will work with Robert on this.
    • VO: will try to get it all done within a week for the rest of the slopes.

Analysis projects

  1. Yufan: haplog3972 haplog3968
    • YC: using Tao's updated run list; removed runs where the analog BCM were bad or unplugged; removed runs that have less than 5k events and DD RMS > 200; 3968 shows the RMS distributions; CP: could you combine the different pdfs to have the cuts and distributions together for each DD? YC: will do
    • KP: looking at the mean and error on mean and some of these are 2-3 sigma away from 0. We need to understand if there is a particular combination that shows a particular pull. CP: there are some runs that have a large Aq. CC: we should take a closer look at those runs.
    • CP: please fix the fitting bug; summarize the results of the fit in a table. KP: also identify the runs with large pulls and investigate them to see if they have anything that tells us why they have a large pull
  2. Devika:
    • CP: she is trying to do regression of BPMs with other BPMs. She got the machinary working and will start work soon.
  3. Tao: "regressed charge asymmetry" haplog3874haplog3975
    • TY: plotting the different charge asymmetry width (regressed with BPMs). there is a clear separation for some runs. CP: I'd argue that for those runs the BPMs are sensitive to charge.
    • TY: looked at Compton asymmetric backgrounds and tried to correlate with this issue. KP: 90Hz noise clipping on the master slip seems to show up both in the main analysis and the Compton!?; or the beam tune that left us sensitive to the 90Hz noise.
    • CC: there doesn't seem to be a shift in these runs for the corrected mean.

Present

  • JLab:
    • Don J, Ryan R, Dmitrii N , Dustin M, Devi A, Caryn P, Cameron C,
  • Phone:
    • Eric K, Jinlong Z, Kent P, Paul K, Rakitha B, Robert R, Victoria O, Ye T, Yufan C, David A, Sakib R, Sanghwa P, Weibin Z

Excused

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