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  • From: "Van Buren, Gene" <gene AT bnl.gov>
  • To: "Van Buren, Gene" <gene AT bnl.gov>
  • Cc: Star-tpc L <Star-tpc-l AT lists.bnl.gov>
  • Subject: Re: [Star-tpc-l] TPC Meeting Minutes
  • Date: Tue, 20 Jun 2023 03:08:52 +0000

Hi,

With the requested increased statistics (5 files => 114 files), here are all
114 files produced in P23ic_calib for production_3p85GeV_fixedTarget_2019:
/star/data14/GRID/NFS_FileList/production_3p85GeV_fixedTarget_2019_P23ic_calib_event.txt

-Gene

> On Jun 16, 2023, at 1:26 PM, Van Buren, Gene via Star-tpc-l
> <star-tpc-l AT lists.bnl.gov> wrote:
>
> OK - thanks, Yuri. I will get this going.
> -Gene
>
>
>> On Jun 16, 2023, at 12:40 PM, Fisyak, Yuri V via Star-tpc-l
>> <Star-tpc-l AT lists.bnl.gov> wrote:
>>
>> Hello, I have checked new dE/dx calibration sample for RunXIX-XX
>> FXT.
>> I see that the calibration sample for 3p85GeV_fixedTarget_2019 has to be
>> increase by a factor of 20 to provide a reliable dE/dx calibration.
>>
>>
>> 13p5GeV_fixedTarget_2020 : No. of Prinmary Vertices = 0.34298M,
>> Good = 0.34298M, No. positve tracks = 13.079M, negative
>> tracks = 7.0701M
>> 19p5GeV_fixedTarget_2020 : No. of Prinmary Vertices = 0.3622M,
>> Good = 0.3622M, No. positve tracks = 14.105M, negative
>> tracks = 8.3027M
>> 26p5GeV_fixedTarget_2020 : No. of Prinmary Vertices = 0.37886M,
>> Good = 0.37886M, No. positve tracks = 14.277M, negative
>> tracks = 8.8486M
>> 31GeV_fixedTarget_2019 : No. of Prinmary Vertices = 0.31423M,
>> Good = 0.31423M, No. positve tracks = 11.891M, negative
>> tracks = 7.4593M
>> 31p2GeV_fixedTarget_2020 : No. of Prinmary Vertices = 0.43853M,
>> Good = 0.43853M, No. positve tracks = 16.939M, negative
>> tracks = 10.678M
>>
>> 3p85GeV_fixedTarget_2019 : No. of Prinmary Vertices = 0.048554M,
>> Good = 0.048554M, No. positve tracks = 1.7863M, negative
>> tracks = 0.45417M <<<<<<<<<<<
>>
>> 4p59GeV_fixedTarget_2019 : No. of Prinmary Vertices = 0.93338M,
>> Good = 0.93338M, No. positve tracks = 37.116M, negative
>> tracks = 11.387M
>> 5p75GeV_fixedTarget_2020 : No. of Prinmary Vertices = 0.47772M,
>> Good = 0.47772M, No. positve tracks = 14.857M, negative
>> tracks = 5.4902M
>> 7.3GeV_fixedTarget_2019 : No. of Prinmary Vertices = 0.38862M,
>> Good = 0.38862M, No. positve tracks = 14.227M, negative
>> tracks = 6.0581M
>> 7p3GeV_fixedTarget_2020 : No. of Prinmary Vertices = 0.42879M,
>> Good = 0.42879M, No. positve tracks = 16.363M, negative
>> tracks = 6.9606M
>> 9p8GeV_fixedTarget_2020 : No. of Prinmary Vertices = 0.60542M,
>> Good = 0.60542M, No. positve tracks = 23.333M, negative
>> tracks = 11.36M
>>
>> Yuri Fisyak
>>
>> STAR Phone: +1 631 344 3913
>> Brookhaven National Laboratory Fax: +1 631 344 4206
>> 510A/1-161
>> http://www.star.bnl.gov/~fisyak E-mail: fisyak AT bnl.gov
>>
>>
>>
>> From: Star-tpc-l <star-tpc-l-bounces AT lists.bnl.gov> on behalf of Richard
>> Witt via Star-tpc-l <star-tpc-l AT lists.bnl.gov>
>> Date: Thursday, June 15, 2023 at 12:43 PM
>> To: Star-tpc L <Star-tpc-l AT lists.bnl.gov>
>> Subject: [Star-tpc-l] TPC Meeting Minutes
>>
>> Present: Alexei, Flemming, Tommy, Yuri, Gene, David, and myself
>>
>> == Hardware
>> — water leak at blower
>> — problem with cathode HV supply
>> — discussed with sPHENIX
>> — Alexei investigating and getting quote for power supply
>> — long delay in production (~20 weeks)
>> — looking into use of alternative PS from test stand
>> — some concern about absence of good laser runs
>> — were not taken due to water leaks in magnet cooling system (under repair
>> currently)
>> — expect will be better laser runs soon
>>
>>
>> == Electronics
>> — good progress
>> — TPX FPGA code is mostly done
>> — about 3 RDOs done in sector 1, started moving through sector 2
>> — may be some issue with timing
>> — but new code is running on a number of RDOs in system
>> — online plots are filling correctly
>> — hope to test much larger part of system next week
>>
>> == Software
>> — Gene noted the volume of zero field data and its utility in calibrations
>> and alignment
>> — discussed work with Temple
>> — students Charlie Clark, Richard Chruchley will be working
>> — SC for run 23, usually done by HLT group, new person this year, Baoshan
>> — Gene putting Baoshan in touch with Babu
>> — all 2019 and 2020 FXT runs done for dE/dx calibration
>> — Yuri working on dE/dx FXT 2019 and 2020
>> — FF vs RFF for 2021 is still a puzzle since no TPC movement has been
>> detected
>> — O+O and 7.7 Au+Au were taken with FF
>> — other data after RFF change do not show same distortion
>> — 1 mrad TPC roatation shown by survey, but Yuri does not see that in his
>> work
>> — only for 2021 FF does TPC appear to be rotated
>> — old survey position works before and after that period
>> — Irakli increased statistics by factor ~5
>> — Yuri working on combined PID in O+O data
>> — now trying to understand ToF
>> — want to better understand how ToF resolution is calculated
>> — Yuri looking into RDO activity map
>> — 2020 and 2021 data
>> — need confirmation from 2 independent experts
>> — currently only have one such expert
>> — expect strong effect on embedding for 2020/21
>> — New cluster finder
>> — after FPGA work is done, need to check what is produced offline and
>> online (compare)
>> — expecting new drift velocity today
>> — Alexei says can check data from last night and this morning for new
>> drift velocity
>>
>>
>> == AOB
>> — Request from Frank to present status of several TPC topics in next
>> week’s S&C meeting
>> — Richard will call to discuss with Frank and update the group
>> — Yuri also need some help from Tommy to run over as much data as possible
>> from previous years for FF and RFF comparison
>> — years all the way back to 2013, etc.
>> — want to understand if the problem seen in O+O can be found in earlier
>> data
>>
>> Best Regards,
>> Richard
>>
>> Sent from my iPad
>> --
>> "Education is the most powerful weapon which you can use to change
>> the world."
>>
>> --Nelson Mandela
>>
>> ~~~***~~~***~~~***~~~***~~~***~~~***~~~***~~~***~~~***~~~***~~~***~
>> Richard Witt, Professor of Physics Phone (USNA): 410-293-6675
>> United States Naval Academy Email: witt AT usna.edu
>> ~~~***~~~***~~~***~~~***~~~***~~~***~~~***~~~***~~~***~~~***~~~***~
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>
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