Home » Groups

Tracking Efficiency Uncertainty

17.11.2020, The charges to the task force

  1. Conduct systematic studies on the TPC single track efficiency uncertainty on a few standard datasets, e.g. AuAu200, BES, pp200 or 500 GeV etc. It will be preferred that the uncertainty can be evaluated more differentially in pT, eta/y, luminosity etc when statistics allows.
  2. Investigate on any possible improvement in the TPC simulator to improve the efficiency uncertainty, especially for the BES-II datasets.
  3. Expect a report from the task force (to be released as a STAR note) The report should include the above studies, as well as a description on standard procedures to evaluate the tracking efficiency uncertainty for other datasets.
  4. Timeline:  about 6 months - 1 year. If the full efforts are expected to take longer than this, we expect a preliminary report focusing on the findings from 1) to be released in about 6 months.    

Weekly meetings:  10:00 AM Eastern Time (US and Canada)

https://bnl.zoomgov.com/j/1607035037?pwd=WDVqaEdwa0RtTEM5a1VvZ24yU2gwdz09

Meeting ID: 160 703 5037
Passcode: 099371
One tap mobile
+16692545252,,1607035037#,,,,,,0#,,099371# US (San Jose)
+16468287666,,1607035037#,,,,,,0#,,099371# US (New York)

Dial by your location
        +1 669 254 5252 US (San Jose)
        +1 646 828 7666 US (New York)
Meeting ID: 160 703 5037
Passcode: 099371
Find your local number: https://bnl.zoomgov.com/u/aoARs6rfR

Join by SIP
1607035037@sip.zoomgov.com

Join by H.323
161.199.138.10 (US West)
161.199.136.10 (US East)
Meeting ID: 160 703 5037
Passcode: 099371

Related documents, studies, and link to tool can be found HERE.

Tracking Efficiency Uncertainty meeting

Updated on Mon, 2022-01-10 10:24. Originally created by petrchal on 2022-01-10 10:24.
2021-12-21 10:00
2021-12-21 11:00
America/New York
Tuesday, 21 December 2021
https://bnl.zoomgov.com/j/1607035037?pwd=WDVqaEdwa0RtTEM5a1VvZ24yU2gwdz09, at 15:00 (GMT), duration : 01:00

Tracking Efficiency Uncertainty meeting

Updated on Mon, 2022-01-10 10:22. Originally created by petrchal on 2022-01-10 10:22.
2021-12-14 10:00
2021-12-14 11:00
America/New York
Tuesday, 14 December 2021
https://bnl.zoomgov.com/j/1607035037?pwd=WDVqaEdwa0RtTEM5a1VvZ24yU2gwdz09, at 15:00 (GMT), duration : 01:00

Tracking Efficiency Uncertainty meeting

Updated on Mon, 2021-12-20 11:03. Originally created by petrchal on 2021-12-20 11:03.
2021-12-28 10:00
2021-12-28 11:00
America/New York
Tuesday, 28 December 2021
https://bnl.zoomgov.com/j/1607035037?pwd=WDVqaEdwa0RtTEM5a1VvZ24yU2gwdz09, at 15:00 (GMT), duration : 01:00

Tracking Efficiency Uncertainty meeting

Updated on Mon, 2021-12-20 11:03. Originally created by petrchal on 2021-12-20 11:03.
2021-12-21 10:00
2021-12-21 11:00
America/New York
Tuesday, 21 December 2021
https://bnl.zoomgov.com/j/1607035037?pwd=WDVqaEdwa0RtTEM5a1VvZ24yU2gwdz09, at 15:00 (GMT), duration : 01:00

Tracking Efficiency Uncertainty meeting

Updated on Tue, 2021-11-16 07:40. Originally created by petrchal on 2021-11-16 07:40.
2021-11-23 10:00
2021-11-23 11:00
America/New York
Tuesday, 23 November 2021
https://bnl.zoomgov.com/j/1607035037?pwd=WDVqaEdwa0RtTEM5a1VvZ24yU2gwdz09, at 15:00 (GMT), duration : 01:00

Tracking Efficiency Uncertainty meeting

Updated on Tue, 2021-11-16 07:40. Originally created by petrchal on 2021-11-16 07:40.
2021-11-30 10:00
2021-11-30 11:00
America/New York
Tuesday, 30 November 2021
https://bnl.zoomgov.com/j/1607035037?pwd=WDVqaEdwa0RtTEM5a1VvZ24yU2gwdz09, at 15:00 (GMT), duration : 01:00

Tracking Efficiency Uncertainty meeting

Updated on Tue, 2021-11-16 07:40. Originally created by petrchal on 2021-11-16 07:40.
2021-12-07 10:00
2021-12-07 11:00
America/New York
Tuesday, 7 December 2021
https://bnl.zoomgov.com/j/1607035037?pwd=WDVqaEdwa0RtTEM5a1VvZ24yU2gwdz09, at 15:00 (GMT), duration : 01:00

Tracking Efficiency Uncertainty meeting

Updated on Tue, 2021-11-16 07:40. Originally created by petrchal on 2021-11-16 07:40.
2021-12-14 10:00
2021-12-14 11:00
America/New York
Tuesday, 14 December 2021
https://bnl.zoomgov.com/j/1607035037?pwd=WDVqaEdwa0RtTEM5a1VvZ24yU2gwdz09, at 15:00 (GMT), duration : 01:00

Tracking Efficiency Uncertainty meeting

Updated on Tue, 2021-11-16 07:40. Originally created by petrchal on 2021-11-16 07:40.
2021-11-16 10:00
2021-11-16 11:00
America/New York
Tuesday, 16 November 2021
https://bnl.zoomgov.com/j/1607035037?pwd=WDVqaEdwa0RtTEM5a1VvZ24yU2gwdz09, at 15:00 (GMT), duration : 01:00

Tracking Efficiency Uncertainty meeting

Updated on Tue, 2021-11-16 09:18. Originally created by petrchal on 2021-11-01 13:34.
2021-11-09 10:00
2021-11-09 11:00
America/New York
Tuesday, 9 November 2021
https://bnl.zoomgov.com/j/1607035037?pwd=WDVqaEdwa0RtTEM5a1VvZ24yU2gwdz09, at 15:00 (GMT), duration : 01:00
Minutes:

GMT- Solved problem with crashing code. The problem was not in the part related to the GMT - As I understand handling of floating exceptions was changed in the tracking code.

Petr: When running MC filtering it was found that the geant is run accdently twice for each event. It was confirmed by Yuri that this is not wanted. The bug was reported to S&C.

Tracking Efficiency Uncertainty meeting

Updated on Mon, 2021-11-01 13:34. Originally created by petrchal on 2021-11-01 13:34.
2021-11-02 10:00
2021-11-02 11:00
America/New York
Tuesday, 2 November 2021
https://bnl.zoomgov.com/j/1607035037?pwd=WDVqaEdwa0RtTEM5a1VvZ24yU2gwdz09, at 14:00 (GMT), duration : 01:00

Tracking Efficiency Uncertainty meeting

Updated on Mon, 2021-10-18 08:05. Originally created by petrchal on 2021-10-18 08:05.
2021-10-26 10:00
2021-10-26 11:00
America/New York
Tuesday, 26 October 2021
https://bnl.zoomgov.com/j/1607035037?pwd=WDVqaEdwa0RtTEM5a1VvZ24yU2gwdz09, at 14:00 (GMT), duration : 01:00

Tracking Efficiency Uncertainty meeting

Updated on Mon, 2021-10-18 08:05. Originally created by petrchal on 2021-10-18 08:05.
2021-10-19 10:00
2021-10-19 11:00
America/New York
Tuesday, 19 October 2021
https://bnl.zoomgov.com/j/1607035037?pwd=WDVqaEdwa0RtTEM5a1VvZ24yU2gwdz09, at 14:00 (GMT), duration : 01:00

Tracking Efficiency Uncertainty meeting

Updated on Thu, 2021-10-07 09:44. Originally created by petrchal on 2021-10-04 06:48.
2021-10-12 10:00
2021-10-12 11:00
America/New York
Tuesday, 12 October 2021
https://bnl.zoomgov.com/j/1607035037?pwd=WDVqaEdwa0RtTEM5a1VvZ24yU2gwdz09, at 14:00 (GMT), duration : 01:00
Minutes:

There was a discussion about using difference between extracted tracking efficiencies for different FXT collision energies. Accoording to Gene it is not clear if separate calibrations for individual collisions energies are needed and it is being now investigated by TPC group.

From discussion of previous Robert's results on probability of hit loss on track it seem that there is higher chance to loose hits in lower pat of the TPC in data compared to simulation. This is bit strange in light of Xianglei's findings about cluster simulations as showed at collaboration meeting. It was suggested that incomplete accounting of dead channels could play a role.

Tracking Efficiency Uncertainty meeting

Updated on Mon, 2021-10-04 06:47. Originally created by petrchal on 2021-10-04 06:47.
2021-10-05 10:00
2021-10-05 11:00
America/New York
Tuesday, 5 October 2021
https://bnl.zoomgov.com/j/1607035037?pwd=WDVqaEdwa0RtTEM5a1VvZ24yU2gwdz09, at 14:00 (GMT), duration : 01:00

Tracking Efficiency Uncertainty meeting

Updated on Thu, 2021-09-30 07:53. Originally created by petrchal on 2021-09-20 11:13.
2021-09-28 10:00
2021-09-28 11:00
America/New York
Tuesday, 28 September 2021
https://bnl.zoomgov.com/j/1607035037?pwd=WDVqaEdwa0RtTEM5a1VvZ24yU2gwdz09, at 14:00 (GMT), duration : 01:00
Minutes:

GMT-There is currently ongoing comparison of hits and projections on track-by-track basis. It is not known what causes the difference between the hits projections, but the pinpointed to a P18im library.

K->3pi
It was discussed that after Xianglei tuned the cluster size for isobar data it would be good to compare to them to see the influence on this study.
TimeTalkPresenter
09:00Update on K->3pi after coll. meeting ( 00:20 ) 1 filePetr Chaloupka

Tracking Efficiency Uncertainty meeting

Updated on Mon, 2021-09-20 11:13. Originally created by petrchal on 2021-09-20 11:13.
2021-09-21 10:00
2021-09-21 11:00
America/New York
Tuesday, 21 September 2021
https://bnl.zoomgov.com/j/1607035037?pwd=WDVqaEdwa0RtTEM5a1VvZ24yU2gwdz09, at 14:00 (GMT), duration : 01:00
TimeTalkPresenter
09:00update on pp embedding ( 00:20 ) 1 filePetr for Robert Licenik
09:20Systematic error from K->3pi in 7.7 GeV ( 00:20 ) 1 filePetr Chaloupka

Tracking Efficiency Uncertainty meeting

Updated on Mon, 2021-09-06 08:57. Originally created by petrchal on 2021-09-06 08:57.
2021-09-14 10:00
2021-09-14 11:00
America/New York
Tuesday, 14 September 2021
https://bnl.zoomgov.com/j/1607035037?pwd=WDVqaEdwa0RtTEM5a1VvZ24yU2gwdz09, at 14:00 (GMT), duration : 01:00

Tracking Efficiency Uncertainty meeting

Updated on Mon, 2021-09-06 08:56. Originally created by petrchal on 2021-09-06 08:56.
2021-09-07 10:00
2021-09-07 11:00
America/New York
Tuesday, 7 September 2021
https://bnl.zoomgov.com/j/1607035037?pwd=WDVqaEdwa0RtTEM5a1VvZ24yU2gwdz09, at 14:00 (GMT), duration : 01:00
TimeTalkPresenter
09:00k->3pi Update ( 00:20 ) 1 filePetr Chaloupka

Tracking Efficiency Uncertainty meeting

Updated on Mon, 2021-08-23 08:29. Originally created by petrchal on 2021-08-23 08:29.
2021-08-31 10:00
2021-08-31 11:00
America/New York
Tuesday, 31 August 2021
https://bnl.zoomgov.com/j/1607035037?pwd=WDVqaEdwa0RtTEM5a1VvZ24yU2gwdz09, at 14:00 (GMT), duration : 01:00