TPC weekly

2021-03-10 15:00
America/New York
Wednesday, 10 March 2021
virtual , at 20:00 (GMT), duration : 00:00
Minutes

No issue with TPC hardware
-Have adjusted methan content to make Vdrift more constatnt; there were several period in Feb with variations.
- powerdips and magnet trips during last weeks running.

The two runs in day 38 and 66 had outer sector 19 exhibit large excess of charge that extended for all pad and rows for about 150 timebins. See blog entries in https://drupal.star.bnl.gov/STAR/blog/videbaks/tpc-qa-2021 near top of page

Most likely a faulty GG driver board . Alexei suggested looking at signals from board during next maintanence day (unless it get really bad). Will talk to Tim on this.

Gene reported looking at laser un running 7.7 GeV for local clock vs. coll clock. Did not see any different between laser positions. Now looking at prompt hits for two conditions, (UPDATE: small shifts seen for the entire TPC by 14.1 ns, but not on the scale of 1 time bucket; documentation is here)

Yuri show plots 
these are references for plots which we discussed today
1. Comparison RF and FF  https://drupal.star.bnl.gov/STAR/system/files/TpcCSTransformations_0.pdf
-- the FF has only 34k events.Alignment same for two settings.
2. QA plots for RunXXI (express production) : https://www.star.bnl.gov/~fisyak/star/BES/
---
3. Lasers for different fields
-- no clear pattern. Sector 20 seems consistent for all fields. 20 has best lasers
4. Prompts for different VPD timing cuts
-- shows dependence on collisions timing (sum of VPD timing)
The last plots on meeting page only








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Update on K->3pi


Talk time : 10:20, Duration : 00:20

STAR-ALICE-Indian Collaboration talk

 

The D0 reconstruction for different decay channels


Talk time : 10:00, Duration : 00:20

Tracking Efficiency Uncertainty meeting

2021-03-16 10:00
2021-03-16 11:00
America/New York
Tuesday, 16 March 2021
https://bnl.zoomgov.com/j/1607035037?pwd=WDVqaEdwa0RtTEM5a1VvZ24yU2gwdz09, at 14:00 (GMT), duration : 01:00

Tracking Efficiency Uncertainty meeting

2021-03-09 10:00
2021-03-09 11:00
America/New York
Tuesday, 9 March 2021
https://bnl.zoomgov.com/j/1607035037?pwd=WDVqaEdwa0RtTEM5a1VvZ24yU2gwdz09, at 15:00 (GMT), duration : 01:00
Meeting minutes:

GMT - the code stransferrend to dev compiles, but crashes. The reasons seems to be forbidden access to the tree data structure. David will test if the is also tru in  .DEV2

Robert Licenik managed to recreate the embedding Pythia in to zero bias pp data. The results are different from what Dima showed. The reason could be that Dima was using a private reproduction of the data.

K->3pi update. The  bump in the reconstruction efficiency as a function of transverse radius is also in the MC. Possible cause could be a track splitting. It was suggested to check the invariant mass. It could also be a feature if the KFP when extrapolating into a region without hits. Need to try changing the KFP cut values.

TimeTalkPresenter
10:00The D0 reconstruction for different decay channels ( 00:20 ) 1 file
10:20Update on K->3pi ( 00:20 ) 1 file

BTOFTimingWindow_Cosmics

 

BTOFTimingWindow_Cosmics

 

Weekly Meeting (Mar 8th, 2021)

  - Minghui: 2rd calibration and ML study

Weekly Meeting (Mar 8th, 2021)

  - Minghui: 2rd calibration and ML study

PRELIMINARY_FOR_CPOD2021

 

Management-convener meeting

 

Speaker : All


Talk time : 13:35, Duration : 02:00

sTGC module drawing with all buckles and supports - Mar.2021

 

CPOD

 Proceedings

Comments
--------------------------------------------------------------
Dear Nishitani Risa,

JetCorr PWG QA

Speaker : Isaac Mooney


Talk time : 13:50, Duration : 00:20

 

Status of SQM 2021 abstracts

Speaker : Rongrong Ma ( BNL )


Talk time : 09:35, Duration : 00:10

Bulkcorr_QA_7p7

Speaker : Ashish Pandav


Talk time : 12:00, Duration : 00:20

 

HLT QA

Speaker : Hongwei Ke


Talk time : 13:30, Duration : 00:20

 

7p7 GeV PWG QA

Speaker : Kaifeng Shen


Talk time : 13:10, Duration : 00:20

 

vn-pt correlation in isobar for 2021 march Collaoration meeting