Star-tpc-l mailing list

[Richard Witt <witt AT usna.edu>]

Present: Alexei, Yuri, Tommy, Geydar, Vinh, Gene, and myself

== Hardware

— checked almost all holes

— need to coordinate with Tonko now about non-interference with electronics work

— did not get to check 3D sensor fit yet due to activity on west side

== Electronics

— nothing new for this week

== Software

— presentation from Vinh on dE/dx QA from 7.7 GeV

— see https://drupal.star.bnl.gov/STAR/blog/lbavinh/dEdx-QA-AuAu-77-GeV-Run21

— conclusion is that ToF m^2 cuts give, at best, only factor 10 improvement in reduction of misidentification (see talk)

— Gene asked if ToF group has studied the effect of tails on the distributions

— ultimately attempting to do combined PID with all detectors

— this is first step comparing TPC and ToF

— Yuri has frozen new modified dE/dx model

— calculating dE/dx from all BES data

— continuing iteration and work on methodology

— expect new dE/dx calibration for all BES II data soon, but not clear how soon

— Gene asked about choice of TFG22e library vs. SL22b

— only TFG offers KFParticle finder

== AOB

— nothing new reported this week

Best Regards,

  Richard

Sent from my iPad

-- 
"Education is the most powerful weapon which you can use to change
the world."

--Nelson Mandela

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 Richard Witt, Professor of Physics     Phone (USNA): 410-293-6675
    United States Naval Academy         Email: witt AT usna.edu
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