Paper Page of Measurement of Charge Correlator Ratio in pp
Updated on Wed, 2025-03-12 15:21. Originally created by youqi on 2025-02-24 12:38.Title: Measurement of the charge correlator ratio in p+p collisions at STAR
PAs: Youqi Song, Helen Caines, Isaac Mooney
Target journal: PRD or PRC
Figures:
Fig. 1. The angular separation Delta R between the truth-level and detector-level leading (subleading) tracks in jets.
Fig. 3. Fully corrected r_c vs jet p_T, compared to event generator predictions.
Conclusions: In summary, to probe for string-like fragmentation, we measure of r_c as a function of jet p_T in sqrt{s}=200 GeV p+p collisions at STAR. On average, the data show that leading charged particles in jets are more likely to be opposite signs than same sign. (In data, opposite signs occur 65% of the time and same sign 35% of the time. In PYTHIA these fractions are 68% to 32%). Compared with predictions from event generators, the fully corrected data show a weaker correlation between the leading and subleading tracks in jets. The significant difference between HERWIG and PYTHIA in their relative fractions of fragmentation vs. resonance decays might explain why their predictions for r_c are similar despite different approaches to fragmentation.
Preliminary results: page
Public presentations:
HP 24
WWND 24
CFNS npQCD workshop
QM 23 (poster)
Presentations within STAR:
04/13/23
05/11/23
07/13/23
08/10/23
08/17/23
08/22/23: preliminary request
01/17/24
03/05/25: paper proposal
03/14/25: PWGC preview
Measurement of p-phi Correlation Functions in 200 GeV Isobar Collisions
Updated on Wed, 2025-03-05 09:05 by bfu. Originally created by dongx on 2025-02-24 11:41.
Reference
Speaker : Boyang Fu
Talk time : 10:00, Duration : 00:20
FST Meeting on 02/24/2025
Updated on Mon, 2025-02-24 08:59. Originally created by sunxuhit on 2025-02-23 00:51.Start: 2025-02-25 9:00 am
update on dielectron production in Au+Au collisions at 17.3 GeV
Updated on Mon, 2025-02-24 10:25 by zli1. Originally created by xgn1992 on 2025-02-21 00:16.STAR PWGC meeting
Updated on Fri, 2025-04-25 07:43 by rksooraj. Originally created by marr on 2025-02-20 14:20.https://lbnl.zoom.us/j/99981267001?pwd=Q05nbjc3ZlgvR21TTzFpK2Jod2pJdz09, at 14:00 (GMT), duration : 00:00
- Brief introduction from the PWG conveners (5’) [Tommy Tsang]
2) Preliminaries and paper plans
- Please ask PAs to provide drupal pages with approved Preliminary plots and preliminary request slides and add them to the PWG Preliminaries page. (Not updated since CPOD 2024?)
- Lots of Preliminary results from STAR at HP 2024 and QM 2025. We should focus on converting them to papers. Please ask for feedback from PAs on their plans and any data/embedding production request from STAR
3) Embedding priorities
- LIST of embedding requests
- outstanding requests in green (setup done) and white (setup to be done)
- Please provide feedback on if any requests need to be prioritized, for ongoing papers/analyses in GPC/those well advanced/any upcoming conferences
- Will consider the priority requests for QM obselete
4) Data production priorities
- Current priorities and status LINK
- Run 23 and Run 24
- Request to produce Run 24 p+p 200 GeV - which datasets? Is forward tracking needed?
5) Data production QA and library validations
- Need to set up production QA for the large datasets from Run 22 - 25
-- Will co-ordinate with the QA board
-- please assist the QA volunteers in doing the QA and deciding which quantities to look at
- Validation needed for 32 bit vs 64 bit productions
-- which datasets and observables to look at?
-- Previous suggestions for datasets: LINK
- ROOT6 validation, GEANT4STAR task force volunteers.
-- Volunteers so far from ColdQCD (Anuja Khanal), LFSUPC (many volunteers, do we have a list?), HP (Tanmay Pani, Jeongmyung Kang)
6) Preliminary/preview request requirements
- Comparisons to existing results and other ongoing analyses from STAR
STAR PWGC meeting
Updated on Thu, 2025-02-20 14:20 by rksooraj. Originally created by marr on 2025-02-20 14:20.https://lbnl.zoom.us/j/99981267001?pwd=Q05nbjc3ZlgvR21TTzFpK2Jod2pJdz09, at 15:00 (GMT), duration : 00:00
STAR PWGC meeting
Updated on Thu, 2025-03-13 12:50 by rksooraj. Originally created by marr on 2025-02-20 14:20.https://lbnl.zoom.us/j/99981267001?pwd=Q05nbjc3ZlgvR21TTzFpK2Jod2pJdz09, at 14:00 (GMT), duration : 00:00
- Brief introduction from the PWG conveners (5’) [QIan Yang]
2) QM analysis status
- LIST of talks and posters from STAR
STAR PWGC meeting
Updated on Thu, 2025-02-20 14:20 by rksooraj. Originally created by marr on 2025-02-20 14:20.https://lbnl.zoom.us/j/99981267001?pwd=Q05nbjc3ZlgvR21TTzFpK2Jod2pJdz09, at 14:00 (GMT), duration : 00:00
STAR PWGC meeting
Updated on Thu, 2025-03-27 23:05 by rksooraj. Originally created by marr on 2025-02-20 14:20.https://lbnl.zoom.us/j/99981267001?pwd=Q05nbjc3ZlgvR21TTzFpK2Jod2pJdz09, at 14:00 (GMT), duration : 00:00
- LIST of talks and posters from STAR
2) Run 22 production
- Get involved with using FWD data. PicoDsts (without tracking alignment) produced /gpfs01/star/pwg_tasks/
- Check picoDsts, see if all required information are there
3) 32 bit vs 64 bit
- Simulation study by Jason LINK.
- No major differences seen. Would like to have a physics evaluation (part of task force?)
4) GEANT4STAR task force volunteers
STAR PWGC meeting
Updated on Thu, 2025-02-20 14:20 by rksooraj. Originally created by marr on 2025-02-20 14:20.https://lbnl.zoom.us/j/99981267001?pwd=Q05nbjc3ZlgvR21TTzFpK2Jod2pJdz09, at 14:00 (GMT), duration : 00:00
STAR PWGC meeting
Updated on Thu, 2025-02-20 14:20 by rksooraj. Originally created by marr on 2025-02-20 14:20.https://lbnl.zoom.us/j/99981267001?pwd=Q05nbjc3ZlgvR21TTzFpK2Jod2pJdz09, at 14:00 (GMT), duration : 00:00
STAR PWGC meeting
Updated on Thu, 2025-02-20 14:20 by rksooraj. Originally created by marr on 2025-02-20 14:20.https://lbnl.zoom.us/j/99981267001?pwd=Q05nbjc3ZlgvR21TTzFpK2Jod2pJdz09, at 14:00 (GMT), duration : 00:00
STAR PWGC meeting
Updated on Fri, 2025-02-28 10:26 by rksooraj. Originally created by marr on 2025-02-20 14:20.https://lbnl.zoom.us/j/99981267001?pwd=Q05nbjc3ZlgvR21TTzFpK2Jod2pJdz09, at 15:00 (GMT), duration : 00:00
- Brief introduction from the PWG conveners (5’) []
2) Embedding Status
- Presentation by Xianglei Zhu
3) QM Preliminary with Run21 3 GeV
- For analyses that we are not releasing final results, could show preliminary results with SL24a production
4) Convener Managment Meeting at CM
- Scheduled for Thursday, March 6
- Let us know if you have anything to bring up for discussion
STAR PWGC meeting
Updated on Fri, 2025-02-21 10:00 by rksooraj. Originally created by marr on 2025-02-20 14:20.https://lbnl.zoom.us/j/99981267001?pwd=Q05nbjc3ZlgvR21TTzFpK2Jod2pJdz09, at 15:00 (GMT), duration : 00:00
- Brief introduction from the PWG conveners (5’) [Yue Hang Leung]
2) GEANT4 readiness
- Presentation by Jason Webb
3) QM preparation
- With the reduced number of nodes on SDCC, are any analyses targeted for QM severely impacted?
- Data reproduction completed for the 4 FXT energies
- proton, pi+ embedding completed for 3.2 GeV. Embedding team working on other energies and requests
update of K+ and K- production at sqrt{s_{NN}} = 3.5, 3.9, 4.5, 5.2, 6.2 GeV.
Updated on Mon, 2025-02-24 05:30 by zxiang. Originally created by xgn1992 on 2025-02-20 03:37.PWGC preview for DS
Updated on Sun, 2025-05-18 01:59. Originally created by xli2 on 2025-02-19 13:30.
Update on Isobar Net-Proton High Moments Paper
Updated on Tue, 2025-03-04 13:54 by apandav. Originally created by dongx on 2025-02-19 13:07.
Reference
Speaker : Ashish Pandav
Talk time : 16:00, Duration : 00:20
FWD Software
Updated on Wed, 2025-02-19 10:50. Originally created by jdb on 2025-02-19 10:50.https://osu.zoom.us/j/92668696344?pwd=UVpzV2FmeU8ycGtaUzVtQ3FTNjJzdz09, at 16:00 (GMT), duration : 00:00
FWD Software
Updated on Wed, 2025-02-19 10:50. Originally created by jdb on 2025-02-19 10:50.https://osu.zoom.us/j/92668696344?pwd=UVpzV2FmeU8ycGtaUzVtQ3FTNjJzdz09, at 16:00 (GMT), duration : 00:00