The STAR experiment

STAR PWGC meeting

Updated on Fri, 2022-04-22 14:49. Originally created by marr on 2022-04-22 14:49.

Start: 2022-06-10 09:30

Timezone: America/New York

Friday, 10 June 2022
https://bnl.zoomgov.com/j/1619294511?pwd=TkRhZzFjOWZSQnpvUVdGUGFVMmlHdz09, at 13:30 (GMT), duration : 00:00

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STAR PWGC meeting

Updated on Fri, 2022-06-17 13:39. Originally created by marr on 2022-04-22 14:49.

Start: 2022-06-17 09:30

Timezone: America/New York

Friday, 17 June 2022
https://bnl.zoomgov.com/j/1619294511?pwd=TkRhZzFjOWZSQnpvUVdGUGFVMmlHdz09, at 13:30 (GMT), duration : 00:00

1) Paper preview: Global polarization of Λ and Λ-bar hyperons in Au+Au collisions at √sNN = 19.6 and 27 GeV

- Brief introduction from the PWG conveners (5’) [Prithwish Tribedy]

- Paper proposal (15') [Presentation by Joey Adams]

- Open discussions (35')

- Summary from the conveners' panel (5’)

Proposal page: https://drupal.star.bnl.gov/STAR/blog/adams92/Global-polarization-Λ-and-̄Λ-hyperons-AuAu-collisions-√sNN-196-and-27-GeV

PA: Joseph R. Adams, Egor Alpatov, Michael Lisa, Grigory Nigmatkulov
Target journal: PRC

NOTES

2) Analysis meeting June 22-24 (AGENDA)

Conclusions: the analysis meeting agenda is basically settled.

3) Questions from trigger group

Do we need more mid-rapidity triggers for Run-23 than those used for Run 14 and 16?
Do we need more DSM2 for TOF<->BEMC communications? There were some interests in the UPC J/psi trigger. What is the status?

Conclusions: conveners will bring this to PWGs for discussion in the next weeks. Need to provide answers to the trigger group by Aug. 1st.

4) Conference talks with new preliminary results

PAs should present the status of the analysis before proposing an abstract for a conference aiming for new preliminary results
After abstract submission/acceptance, PAs should present analysis updates regularly (at least 1-2 times a month) at PWG meetings

Conclusions: conveners will keep this in mind, and we need all the analyzers to give regular updates in the PWG.

5) Collect new preliminary results from SQM

Conclusions: for new preliminary results, PAs should create a Drupal blog to host all the new preliminary figures of high resolution, as well as the preliminary request presentation.

6) Upcoming conferences

DNP, Oct. 27-30, hybrid: abstract due July 1st
CIPANP, Aug. 29 - Sep. 4, in person only (Florida): abstract due Aug. 1st

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STAR PWGC meeting

Updated on Fri, 2022-05-27 12:38. Originally created by marr on 2022-04-22 14:49.

Start: 2022-05-27 09:30

Timezone: America/New York

Friday, 27 May 2022
https://bnl.zoomgov.com/j/1619294511?pwd=TkRhZzFjOWZSQnpvUVdGUGFVMmlHdz09, at 13:30 (GMT), duration : 00:00

1) Paper preview:

- Brief introduction from the PWG conveners (5’) [Raghav Kunnawalkam Elayavalli]

- Paper proposal (15') [Presentation by David Stewart]

- Open discussions (35')

- Summary from the conveners' panel (5’)

Proposal page: https://drupal.star.bnl.gov/STAR/blog/djs232/Paper-EA-and-UE-Corrs-High-Q2-Events-pAu-sNN200-GeV-Collisions-STAR

PA: Helen Caines, Joern Putschke, David Stewart, Veronica Verkest
Target journal: PRC

NOTES

2) Analysis meeting agenda: draft

Conclusions: the agenda is more or less fianlized. Will start to contact speakers.

3) SQM
- Plenary talk rehearsal: June 7th 9:30 - 10:30 am BNL time
- Parallel talks and posters: submitted to Drupal by May 30th
- Analysis status

Strangeness production in Run16 d+Au (embedding won't be ready)
pi/k/p in 54.4 GeV

Conclusions: PWGs will go through all the talks/posters next week.

4) Production news

Run17 MuDst -> PicoDst st_physics: issues found with BTof calibration. Production stopped, and will resume after fix
Run21 7.7 GeV COL: new correction scheme developed for TPC cluster ADC nonlinearity; recalibration needed for all produced BES-II data if want to apply (SLIDES)
Run19/20 FXT data: need to be reprocessed after ETOF calibration/alignment is fixed

5) Guidance on using italic vs. roman fonts for symbols: Guidances

Note: it should be written as $p$+$p$ and $p$+Au, etc, which is different from the guidance

6) Need a maintainer for StEmcADCtoEMaker

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STAR PWGC meeting

Updated on Fri, 2022-05-20 12:16. Originally created by marr on 2022-04-22 14:49.

Start: 2022-05-20 09:30

Timezone: America/New York

Friday, 20 May 2022
https://bnl.zoomgov.com/j/1619294511?pwd=TkRhZzFjOWZSQnpvUVdGUGFVMmlHdz09, at 13:30 (GMT), duration : 00:00

1) Paper preview: Collision energy dependence of deuteron cumulants and proton-deuteron correlations in Au+Au collisions at RHIC

- Brief introduction from the PWG conveners (5’) [Xiaofeng Luo]

- Paper proposal (15') [Presentation by Debasish Mallick]

- Open discussions (35')

- Summary from the conveners' panel (5’)

Proposal page: https://www.star.bnl.gov/protected/bulkcorr/dmallick/WebPage_Deuteron/index.html

PA: Debasish Mallick, Nu Xu, Bedangadas Mohanty
Target journal: PLB

NOTES

2) Organizational news

New "JetCorr" convener: Nihar Sahoo
Will merge JetCorr and HF very soon. How about calling it HardProbes (HP)?
Raghav and Hanseul will step down when the merging takes effect.

3) Production & Calibration (DETAILS)

Run21 7.7 GeV COL calibration (need a few more weeks)
- Done: BTof
- In progress: ETof, TPC dE/dx, EMC
Run17 510 GeV st_physics MuDst->PicoDst (~23% done, need a few more months)
- More central disk space removing the need to do it in batches. Already communicated with T. Lin.
Run19 & 20: st_zerobias data stream needs to be produced
- Does this need to be in the same library as st_physics productions? (thinking of PicoDst issues)

Conclusions: will not produce st_zerobias data stream unless a request is received. Then we can discuss which library to use based on the needs.

4) GPC #87 erratum: draft (Many thanks to Takahito and Takafumi)

Conclusions: LFSUPC PWG will review the erratum soon.

5) Analysis meeting agenda: draft

Conclusions: will continue revising the agenda as more suggestions/comments come in.

6) Forward triggering for 2023: need a concrete plan by September
- UPC J/psi (LFSUPC)
- Search for He4D (HF)

Conclusions: simulation codes with final-design tracking and calorimetry are now ready. It is necessary for any proposed triggers to carry out feasibility study on thresholds, rates, etc. It is also important to re-evaluate tracking capability in central heavy-ion events.

7) Preliminary results
- No second version
- If mistakes are found, we should stop showing the preliminary results and correct them through publication

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STAR PWGC meeting

Updated on Fri, 2022-05-13 11:48. Originally created by marr on 2022-04-22 14:49.

Start: 2022-05-13 09:30

Timezone: America/New York

Friday, 13 May 2022
https://bnl.zoomgov.com/j/1619294511?pwd=TkRhZzFjOWZSQnpvUVdGUGFVMmlHdz09, at 13:30 (GMT), duration : 00:00

1) Paper preview: Measurement of J/psi production in Au+Au collisions at sqrt(sNN) = 54.4 GeV with STAR experiment

- Brief introduction from the PWG conveners (5’) [Barbara Trzeciak]

- Paper proposal (15') [Presentation by Kaifeng Shen]

- Open discussions (35')

- Summary from the conveners' panel (5’)

Proposal page: https://drupal.star.bnl.gov/STAR/blog/kshen/jpsi-production-auau-collisions-544-gev

PA: Yuanjing Ji, Rongrong Ma, Kaifeng Shen, Zebo Tang, Wangmei Zha
Target journal: PLB

NOTES

2) Needs and status of analyses promised for sQM

Mismatch in NHitsFit for pion: https://drupal.star.bnl.gov/STAR/system/files/embedding_status_20220504.pdf seen in embedding
- Run19 14.6 GeV embedding for pion/kaon (not needed for sQM any more)
- Run19 19.6 GeV embedding for strangeness

Conclusions:
- Will re-tune TPC simulation for pion/kaon/proton simultaneously, and reproduce all the affected embedding samples
- PWGs will check the current Run19 19.6 GeV sample to see if the same mismatch exists

3) Production news

DAQ production
- Run18 Isobar st_mtd: 12% submitted
- A sample for QA: /star/data14/GRID/NFS_FileList/production_isobar_2018_P22ia_QA.txt
MuDst->PicoDst conversion
- Run17 pp 510 GeV st_physics: 18% completed

4) eTOF needs for 2023+25

Conclusions: eTOF is not critically needed for the CF PWG

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