STAR Flow, Chirality and Vorticity PWG

[Prithwish Tribedy <ptribedy AT rcf.rhic.bnl.gov>]

Hello Prabhupada,

The abstract is already in a good shape, please consider the following 
comments.

Comments on the abstract:

cross section for φ mesons are —> cross section for φ mesons is

φ mesons hadrons allows  — > φ mesons allows

collective properties of early stages —> collective properties of the 
early stages

at a new centre-of-mass energies —> at the new centre-of-mass energies

Event Plane Detector (EPD) allows —> Event Plane Detectors (EPDs) allow

using event plane with large gaps  —> using event planes with large gaps

and EPD (2.1<|η|<5.1) —> and EPDs (2.1<|η|<5.1)

High precision test —> A high precision test

constituent quark scaling of v2 (including other hadrons) —> constituent 
quark scaling of φ meson v2 (by including measurements for other 
hadrons)

such measurements at the other —> such measurements at the other 
collision energies

of beam energy scan phase II —> of the RHIC beam energy scan phase II


Comments on the analysis & preliminary approval:

I was looking at you studies:

https://drupal.star.bnl.gov/STAR/system/files/BullCorr_180820.pdf
https://drupal.star.bnl.gov/STAR/system/files/Bulkcorr_meeting2.pdf

1. In the abstract you mentioned “of 54.4 GeV (∼1.3 billion events) and 
27 GeV (∼600 million events)”
but I see you only found  600 M for 54.4 and 350M for 27 GeV. Is this 
difference caused by some quality cuts or you are on your way to 
accumulate more events?

2. Did you consider the effect of pile-up and bad runs. If not, do you 
plan to include such in the future analysis?

3. I think the Nhits/hitmax > 0.52 cut can be removed to gain more 
statistics for this precision analysis.

4. For 27 GeV analysis, a while ago Risa presented Ψ2 event plane 
resolution for her study, can you please cross-check if your resolution 
numbers are consistent (at least in the same ballpark) with what she 
got:
https://drupal.star.bnl.gov/STAR/system/files/Risa_pwg0318_ver2.pdf

Regards,
Prithwish


On 2020-09-14 22:44, webmaster--- via Star-fcv-l wrote:
> Dear star-fcv-l AT lists.bnl.gov members,
>
> Prabhupada Dixit (prabhupadad AT iiserbpr.ac.in) has submitted a material 
> for a
> review, please have a look:
> https://drupal.star.bnl.gov/STAR/node/52051
>
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