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[videbaek <videbaek AT bnl.gov>]

TPC meeting 11/30/23
Present: Yuri, Jim, Gene, Rongrong, Flemming, Irakli, Alexei, Weizhang

Discussion on tp high0 pt resolution. (cosmic, J/psi)
Lead in presentation by Rongrong Link
Presented results from looking at cosmics, 2011,2014 and 2018.
Irakli will take a look at these data, after having gotten location of 
these.
Rongrong will update presentation included opening angle vs pt for J/psi 
to see
If this can possibly explain some of the flat dependence of resolution 
vs. pt
Will also take a look of h-/h+ at high pt as Gene used this as one 
measure for QA.


Hardware:
Preparing for survey, cleaning holes, addition pins in order to get 
better handled of TPC position relative to magnet. Will bring up request 
for survey at next ops meeting.

Fixing of recent leak underway; gotten spare connectors.

Electronics:
According to Tim they will likely wait until the hardware repairs (leak) 
and survey is done, to finish the TPC electronics repirs.

Software:

Space charge correction; Quite good after 3 iterations, put in DB and 
will be used for test production. Will proceed to 4th but needs more 
statistics.

Test production fails for some DAQ files (FST issues causes crash)

Yuri back and will go back to looking at de/dx, alignment.
Has still outstanding pull request that has to be approved.



--
Flemming Videbaek
senior scientist, emeritus
videbaek @ bnl.gov
Brookhaven National Lab
Physics Department
Bldg 510D
Upton, NY 11973

phone: 631-344-4106
cell     :  631-681-1596