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Kaon LT Meetings » mtg_22jan26.txt

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

 
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		Jan 26/22 PionLT/KaonLT Analysis Meeting Notes
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A brief meeting due to the ongoing run.
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Participants:
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 - Richard Trotta, CUA
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 - Pete Markowitz, FIU
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 - Jacob Murphy, Ohio
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 - Nathan Heinrich, Garth Huber, Muhammad Junaid, Vijay Kumar, Love Preet,
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   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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Nathan
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------
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- Mode-10 Update
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  - Mark had suggested to change the pulse amplitude threshold in hcana
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    - is 10mV in hardware
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    - was 5mV in hcana
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    - changing amplitude threshold in software doesn't seem to work
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  - weird difference between FADC and hcana in PuseTimeRaw (different plot
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     scaling?)
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    - PulseAmpRaw, Pulse IntRaw look very similar
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- *Suggestions*
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  Huber: Eager to see what physics Mode-10 data look like, comparing high and
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  low rate runs
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Jacob
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- Analysis of EDTM Study #2
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  - currents were 10uA, 55uA, various PS1,2,3,4
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    Run 13898: TLT=1.002, 55uA, PS2=8, PS4=5
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    Run 13900: TLT=0.918, 55uA, PS2=8
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    - apparently this can make sense, since the HMS EDTMs block the SHMS EDTMs,
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      due to their lower PS.
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  - can separate the HMS, SHMS EDTM timing distributions by doing a fit, since
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      the individual shapes are known from other runs
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    Run 13905: TLT=1.047, 100Hz EDTM rate
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    - need to investigate this more.
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- *Task for JM*
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  - will think about writing an MC to understand these data
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- Richard's EDTM Study w/o Beam
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  Run 14140: Three EDTM 1kHz time raw peaks observed
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  - not seen in regular LUMI runs
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- * Question for future study*
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  - can these extra peaks be reflections that maybe are part of the TLT>1
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    problem?
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Vijay
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- Looking at Q2=0.38, 0.42 Heep data (Summer 2019)
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  2.7 GeV: 1 coin, 6 singles setting
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  3.6 GeV: 1 coin
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  4.5 GeV: 1 coin
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  - for one run, the data doesn't look like a Heep run, so this needs to be
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    checked
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- * Suggestions*
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  - need to recheck beam energy and angles in STANDARD.KINEMATICS 
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Next Meeting
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Wednesday Feb 9 at Noon Eastern/11:00 Regina
(29-29/413)