20200303-PREX2-Analysis

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Logistic information

Meeting room at JLab: CC L210A

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Agenda

1. Tao
   • beam mod data quality plots [weblink]
   • Corrections summary plots [weblink] : regression / combo BPM regression / dithering
   • grand statistics preview [HAPLOG 4043]
   • KP: slug 0 may not have Aq feedback running. CG: not sure how much we can recover from large Aq.
   • CG: double check with Weibin about event cuts
   • KP: Not sure why we are doing blinder in this way for single arm. PK: this is how we do it during summer
   • Checklist / to-do list
     • Are plots/summary text files properly uploaded to the webpage? Any rootfiles missing ? (Robert)
     • Review beam mod data : run ranges for averaging slopes, bad supercycle cuts , residual sensitivity and etc. (Victoria)
     • review event cuts/ mapfiles / data (Weibin / Tao / Robert)
     • keep track of issues : [HAPLOG 4044]
2. Devi
   • Missing plots on the webpage; Already spoke to Robert.
   • AT detectors data issue: outlier from blinding failure and we need device error code cut.
   • PK: Assume the regression slope are ok, cut on device_error_code on AT detectors.
   • KP: We need to look at AT now and see if it is correlated with other systematics.
   • PK: try to look at JAPAN regression which has AT device error code included. KP: if so, lets use regression slope from JAPAN LRB
   • KP: do we have kinematic information about ATs? We need to review them.
   • RyR: if you have a counting run list, I can look at it. Devi/Dustin: we can have a google sheet.
   • KP: do we have dithering on ATs with device error code. KP: combiner summary tree have device error code included from each elements.

Analysis projects

1. BCM double difference study
2. BPM resolution
3. Pedestal / Normalization BCM history
4. Events/ Patterns Counter
5. Dithering sensitivity/Quality re-check
6. Grand statistics re-check
7. Linearity check

PREX Respin

1. Robert:

Present

• JLab: Tao Y, Ye T.
• Phone: Ciprian G, Devi A, Dustin M, Eric K, Kent P, Ryan R, Siyu J, Weibin Z, Paul K, Victoria O, Adam Z.