STAR PWGC meeting
Updated on Thu, 2021-01-28 09:26. Originally created by marr on 2021-01-28 09:26.https://bnl.zoomgov.com/j/1619294511?pwd=TkRhZzFjOWZSQnpvUVdGUGFVMmlHdz09, at 14:30 (GMT), duration : 00:00
STAR PWGC meeting
Updated on Thu, 2021-01-28 09:26. Originally created by marr on 2021-01-28 09:26.https://bnl.zoomgov.com/j/1619294511?pwd=TkRhZzFjOWZSQnpvUVdGUGFVMmlHdz09, at 14:30 (GMT), duration : 00:00
STAR PWGC meeting
Updated on Sat, 2021-02-20 11:22. Originally created by marr on 2021-01-28 09:26.https://bnl.zoomgov.com/j/1619294511?pwd=TkRhZzFjOWZSQnpvUVdGUGFVMmlHdz09, at 14:30 (GMT), duration : 00:00
Proposal page: https://drupal.star.bnl.gov/STAR/blog/sheppel/protonhighermoments3gev
NOTES
2) Data restoration (Priority list)
- New request from FCV: production_pp200trans_2015, st_ssdmb, P16id_SL19c, PicoDst
- Request higher priority: dAu200_production_2016, st_physics, st_fms, P17id, 17133066-17141005
Conclusions: the new request from FCV will be put at the end of the current priority list. For dAu200_production_2016 st_fms data, currently in discussion with Gene to estimate the restoration time. If it takes ~ 1 day, this request will be added to the restoration queue immediately.
3) dN/dx
- Is it used? Are there any potential interests?
- Proposal from production team: disable it by default until someone expresses interests and demonstrates the benefit
Conclusions: no interests expressed from PWGs, and conveners agree with the proposed procedure by the production team.
4) Upcoming conferences
- sQM 2021, May 17-22, abstract due Mar. 8th, online: https://indico.cern.ch/event/985652/
Simulations & Embedding 20210128
Updated on Thu, 2021-01-28 09:26. Originally created by jwebb on 2021-01-28 09:25.Zoom, at 15:00 (GMT), duration : 00:00
| Time | Talk | Presenter |
|---|---|---|
| 10:00 | Embedding Update ( 00:20 ) 1 file | Xianglei |
| 10:20 | Spin/Cold QCD Request ( 00:20 ) 1 file | Ting |
| 10:40 | geant4star ( 00:20 ) 1 file | Jason |
BNL group meeting
Updated on Wed, 2021-01-27 17:17. Originally created by jjiastar on 2021-01-27 16:59.https://drupal.star.bnl.gov/STAR/system/files/bnl_group_discussion_jan27.pdf
Comparison express production TFG19e and calibration production P20ic_calib for 19GeV AuAu2019 data
Updated on Wed, 2021-01-27 14:54. Originally created by fisyak on 2021-01-27 14:54.Reference
Talk time : 15:20, Duration : 00:20
https://drupal.star.bnl.gov/STAR/blog/fisyak/comparison-%0Bexpress-production-tfg19e-and-calibration-production-p20iccalib-19gev-auau20
Spin/Cold QCD PWG Meeting
Updated on Wed, 2021-01-27 13:29. Originally created by zurek on 2021-01-27 13:28.Virtual, at 00:00 (GMT), duration : 01:00
Agenda and connection details available at https://drupal.star.bnl.gov/STAR/pwg/spin/weekly-pwg-meetings
Residuals re-tested
Updated on Wed, 2021-01-27 13:21. Originally created by iraklic on 2021-01-27 13:21.Reference
Speaker : Irakli
Talk time : 15:00, Duration : 00:20
Checked residuals as promised:
APS April Meeting 2021
Updated on Fri, 2021-04-09 00:59. Originally created by veprbl on 2021-01-27 12:16.DIS2021
Updated on Fri, 2021-04-09 00:44. Originally created by veprbl on 2021-01-27 12:15.Comparison express production TFG19e and calibration production P20ic_calib for 19GeV AuAu2019 data
Updated on Wed, 2021-02-03 15:04. Originally created by fisyak on 2021-01-27 11:18.
AOB
Updated on Tue, 2021-01-26 19:26. Originally created by dongx on 2021-01-26 19:26.TPC weekly
, at 20:00 (GMT), duration : 00:00
agenda
- hardware status
- software updates
- calibration review
TPC weeklu
, at 20:00 (GMT), duration : 00:00
TPC weekly
, at 20:00 (GMT), duration : 00:00
hardware
- the west laser had a LV power supply with a bad fuse. Alexie got an access fand fixed in < 1 hour
- Alexei monitor gas and will adjust methan concentration slightly.
- new hot channel in sector1. Have asked Tonko to mask out
FF request.
Gene summarized the FF request as it had emerged from the calibration review. It is important to run FF setting to seperate alignment, E*B distortins
but having data from both polarities. Yuri & Gene confirm that the 20M RF is a good sample from RFF and it was concluded we should request a change as soon as practical and on Wednesday access day at latest. Alexei brought up request to at at the time of switch that a high stat laser run ~20k is taken jest before magnet change and another one is taken with FF after the change, and magnet stabilized.
Yuri showed the dedx for his run 20 calibration for collider data and fixed target.There is some room for improvement in particular for the FXT target data.
Yuri showed that the readout of the magnets current fluctuate on a 15 sec time sacle between two distinct values. Current code only has one magnet value per run so it gives rise to distinct bands of say K0_as there is a scale factor between current read and Field suggest to use average value for future.
Gene discussed a Minor problem in sector alignment distortion correction as shown in attached slide on web page.
Looked at run 18 distortion maps and notice a missing featue that he expected namely spikes missing between inner and outer sector. This is due to an un intentional change of code in 2014. Demonstrated with differences that these effect are likely small. One measure of #primary tracks is sub-promille.
| Time | Talk | Presenter |
|---|---|---|
| 15:00 | Run XX dE/dx calibration ( 00:05 ) 0 files | Yuri Fisyak |
| 15:05 | Run XXI Ks0 mass and STAR main magnet current ( 00:05 ) 0 files | Yuri Fisyak |
| 15:10 | Minor problem in sector alignment distortion correction ( 00:20 ) 0 files | G. Van Buren (BNL) |
TPC weeklu
, at 20:00 (GMT), duration : 00:00
TPC weekly
, at 20:00 (GMT), duration : 00:00
- hardware status
- run progress
- software
- TPC Review Planning
Charge to committee
We just formed the STAR TPC calibration review committee. It is timely and critical to look at the offline calibration tasks and issues. The committee is charged to evaluate the readiness of the TPC calibration for the BES-II data production and provide answers to the following questions by the end of March 2021:
1. What is the status of the tracking and production calibration?
2. Where is the bottleneck of the TPC calibration procedure?
3. Are there enough collaboration manpower and resources for the tasks?
4. How are the online/operation/fast-offline/PWGs efforts coordinated to accomplish the goals?
5. Is there a clear document of procedures in calibration and what are the unexpected and expected issues in BES-II datasets? What are the steps in calibration, and how are the current responsibilities assigned?
6. What is the timeline and path toward completion of whole BES-II calibration for production?
7. Any lesson learned toward future runs?
The members are:
Zhangbu Xu (Chair)
Bill Christie
Carl Gagliardi
Frank Geurts
Marian Ivanov
Ivan Kisel
Tonko Ljubicic
Maria Stefaniak
Jim Thomas
Qinghua Xu
Xin Dong (ex officio)
Rongrong Ma (ex officio)
Talks and subject area.
Geometry & alignment (Yuri)
• Drift velocities
• dE/dx
• Specifics for Run 19
• Cosmic data
• Beam data
• Laser data
• What is the procedure for alignment; How is it documented
• Bottleneck in timely calibrations
• Validation procedures and QA
• Lessons and procedures learned from iTPC prototype commissioning
• Present/summarize clearly the open/unknown issues and potential concerns (all talks)
Surveys done (Flemming)
• Alexei, Jim and Yuri (operation survey)
• Other detectors as calibration tools (GMT, TOF, BEMC)
• How they are included in the calibration procedure
Correction Distortions (Gene)
• Dynamic distortions: SpaceCharge & GridLeak
• Static distortions
Resources for Online and express stream (Hongwei)
• Recap of resources
• Activities
• Relation to FastOffline
Calibration (Irakli)
• T0
• Long bunch timing, FXT and collider BES-II
• How is express and fast offline used in calibration
• Resource/tools/datasets use
QA,QC (BES-II) (Dan)
• Recap of resources
• How are working groups involved in this
• Feedback, requirements to calibrations
TPC weekly
, at 20:00 (GMT), duration : 00:00
-- hardware status
-- startup plans
electronics update (Tonko)
a brief update regarding both TPX (aka outer sectors)
and iTPC (inner sectors) electronics and gating grid.
1) We have the new (Tim's) gating grid connected.
I calibrated it and it looks OK to me. But we should be
a bit weary because we had problems before.
One outcome is that it is relatively noisier at the
opening time than the old GG so one should pay attention.
2) The pulser runs have been taken and the gains
have been established as well as the bad-channel
list. Pretty much the same as last year because
we had no time (COVID and all) to mess with swapping
FEEs to check the problem and see where the
noise comes from: FEE or padplane.
The gains have been loaded into the database.
3) We _did_ swap the broken FEEs and RDOs.
As luck would have it, a single FEE in the ITPC worked
all Fall/Winter but failed as we closed the poletip.
It is masked.
Let's take it from here and see how we stand during
Charge for calibration review
Dear All,
We just formed the STAR TPC calibration review committee. It is timely and critical to look at the offline calibration tasks and issues. The committee is charged to evaluate the readiness of the TPC calibration for the BES-II data production and provide answers to the following questions by the end of March 2021:
- What is the status of the tracking and production calibration?
- Where is the bottleneck of the TPC calibration procedure?
- Are there enough collaboration manpower and resources for the tasks?
- How are the online/operation/fast-offline/PWGs efforts coordinated to accomplish the goals?
- Is there a clear document of procedures in calibration and what are the unexpected and expected issues in BES-II datasets? What are the steps in calibration, and how are the current responsibilities assigned?
- What is the timeline and path toward completion of whole BES-II calibration for production?
- Any lesson learned toward future runs?
The members are:
Zhangbu Xu (Chair)
Bill Christie
Carl Gagliardi
Frank Geurts
Marian Ivanov
Ivan Kisel
Tonko Ljubicic
Maria Stefaniak
Jim Thomas
Qinghua Xu
Xin Dong (ex officio)
Rongrong Ma (ex officio)
| Time | Talk | Presenter |
|---|---|---|
| 15:00 | Residuals re-tested ( 00:20 ) 0 files | Irakli |
| 15:20 | Comparison express production TFG19e and calibration production P20ic_calib for 19GeV AuAu2019 data ( 00:20 ) 0 files |
Run21 Preparation
Updated on Tue, 2021-01-26 19:05. Originally created by dongx on 2021-01-26 14:20.Reference
Speaker : All
Talk time : 12:00, Duration : 00:30
Message sent out by Gene to software coordinator list: