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Kaon LT Meetings » mtg_22feb23.txt

Garth Huber, 03/14/2022 04:51 PM

 
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		Feb 23/22 PionLT/KaonLT Analysis Meeting Notes
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                ----------------------------------------------
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Participants:
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 - Tanja Horn, Richard Trotta, CUA
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 - Pete Markowitz, FIU
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 - Dave Gaskell, JLab
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 - Jacob Murphy, Julie Roche, Ohio
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 - Nathan Heinrich, Garth Huber, Muhammad Junaid, Stephen Kay, Love Preet, Ali
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   Usman, Regina
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Please remember to post your slides at:
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https://redmine.jlab.org/projects/kltexp/wiki/Kaon_LT_Meetings
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Stephen
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-------
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- meeting with Casey re. ifarm job system (swif)
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  - trying to merge his work with hcswif
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  - Stephen's scripts dynamically allocate disk space & memory, while hcswif
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    has these hard coded
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  - hcswif allows for run# ranges, as opposed to specifying each one
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    individually
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- updates to hcana
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  - looking into putting singles trigger assignments into a PARAM file instead
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    of hard coded
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    - will be called HMS, SHMS instead of TRIG1, TRIG3, etc
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  - adding raw untracked COINTIME variable, for untracked analysis
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  - Mode-10 stuff is already included
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- cleaned up UTIL_BATCH
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  - divided into different run periods
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Ali
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---
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- Analysis Plan
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  - divided up Heep-COIN and Heep-SINGLES runs with Richard
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  - fine tune efficiencies and offsets
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  - discussed things with Peter Bosted, to gain from his experience
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    - PB pion PID cuts -> aero npe > 4.0, aerogel eff ~96% for both indices of
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      refraction
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    - PB noticed some SIMC bugs in implementation of detector sizes and 3/4
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      trigger
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      - he turns off the detector-ALL flag to avoid the bug
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- *Suggestions*
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  - Gaskell: we should fix the routine instead of turning off the flag!
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    - in addition, DG is a bit puzzled that PB found sensitivity to this issue,
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      as other SIDIS analyses haven't been sensitive to it
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  - PB has an HMS x-tar data offset of 2.7mm (vertical position of beam on
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    target) but doesn't have any offset in SIMC
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- *Suggestions*
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  - Gaskell: by default hcana uses BPM information to calculate focal plane
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    quantities (e.g. delta).  If BPM wrong, then delta wrong a bit too.
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    - DG is puzzled that it's only for HMS and not SHMS
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    - we don't necessarily have to follow PB's path, but we should learn from
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      him and decide our own solutions
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- *Task for AU*
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  - Ali should ask PB for an example SIMC input file
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Goals for Next Meeting
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----------------------
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- Heep-COIN analysis from Richard and Ali
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  - Vijay will clean up singles Heep script
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- Vijay looking at low Q^2 data SIMC comparions
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- Nathan hoping for new FADC deadtime plots
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- Junaid will show some detector calibration plots
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Next Meeting
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------------
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Wednesday March 9 at 12:00 Eastern/11:00 Regina
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(30-30/430)