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Kaon LT Meetings » mtg_22nov30.txt

Garth Huber, 12/02/2022 11:29 AM

 
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                 Nov 30/22 PionLT/KaonLT Analysis Meeting Notes
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                 ----------------------------------------------
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                           (Notes by GH and SJDK)
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                    Today: PionLT will be discussed first
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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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Present
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-------
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Regina - Garth Huber, Stephen Kay, Alicia Postuma, Love Preet, Nathan Heinrich
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CSULA - Konrad Aniol
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CUA - Richard Trotta
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JLab - Dave Gaskell
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Ohio - Julie Roche, Jacob Murphy
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Meeting time will be moved to 09:00 Eastern for Dec 14, 21, Jan 4
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A poll will be distributed later to select meeting time for Jan 11+
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KaonLT first today
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Richard Updates
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---------------
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- Luminosity replays will be running soon
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   - Waiting on this from Ali, tracking updates needed
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   - Needed to fix some errors in report files
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- Discussed with Bill over email regarding LT software, waiting for more info
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- starting to generalize Heep script for Physics
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   - looking to implement t-binning similar to Alicia's work
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   - GH: Bill handles it in his LT separation code, should probably stay there
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     for Richard too.  The idea is to read in the SIMC and Expt data for all
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     angles at a given (Q2,W) at once and handle them together.  So there's no
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     advantage to put the t-binning before the LT code
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Jacob Updates
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-------------
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- Met with Holly two weeks ago, another meeting tomorrow
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- 6.8 GeV/c HMS matrix didn't seem very well optimised, trying to make
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  improvements
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  Run 14973: Central Foil.  Run 14970: Multi-Foil
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- HMS PolTar ME fit
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   - Very long target ME from A1n
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   - Actually does an OK job at -ve delta for the -8.0 foil
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   - Applied optimizations, so Three ME are studied:
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     1) Original ME  2) PolTar not optimized  3) PolTar optimized
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      - Xsieve holes resolve better after ME optimizations are applied
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      - some weird tilt in the holes at Ysieve ~4cm
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   - PolTar matrix is smaller than other matrices
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   - looking at to increase polynomial order in ME
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      - DG: use COSY to calculate higher order ME and start with that
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- Will move on to looking at SHMS ME corrections soon
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   - Highest was ~8 GeV/c in SHMS?
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   - HB, Q1 saturation may play a role at higher momentum
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   - DG: weird correlations were observed between W_elastic & delta that Casey
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     had to remove from 2019 data, hopefully you don't find the same problem
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Stephen Updates
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---------------
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- Looking to remove correlation between RFtime and CoinTime
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  - will push what he has to GITHUB soon
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- Hall C workshop in January
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   - Agenda needs to be finalised a bit, a few talks planned
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   - One LT separation talk (both PionLT/KaonLT) - Nathan
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   - Spectrometer/Magnet performance talk - Jacob
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   - Tracking performance talk - Ali
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   - Summer meeting, Alicia give a talk on beam helicity asymmetries
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- Quarterly analysis meeting
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   - RF timing improvements - Stephen
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Next Meeting
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------------
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Wed Dec 8 @ 8:15 Eastern/7:15 Regina/5:15 Pacific
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- PionLT will go first
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- GH will connect from his hotel at Stony Brook
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