STAR Flow, Chirality and Vorticity PWG

[Chunjian Zhang <chun-jian.zhang AT stonybrook.edu>]

Dear Prithwish and Shinlchi,

Thank you for your vey nice comments and suggestions. Please find my revised abstract in https://drupal.star.bnl.gov/STAR/system/files/QM2022_STAR_CZhang_v1.pdf

Abstract is too long. We suggest the PAs to reduce it. Shorten the introduction &  U+U/Au+Au part in particular. 

Sure. Thank your nice suggestions. I make it short. 

"Observation and detailed measurements of nuclear deformations at STAR"

-->

"Observation and detailed measurements of nuclear deformations in Au+Au, U+U and isobar collisions from STAR”

Vey nice suggestions but I am not sure we need to mention so specific collisions in the title? 

"therefore they can be probed" --> "and therefore, can be probed”

Done

"ratios of flow observations" --> "ratios of flow measurements"

Done 

"This talk present two set" -->"We present two sets"

"varianc" -->”variance”

Done 

"ratio of v_2 and c_2" --> "ratio of v_2 and v_2^2" ? (avoid additional symbol”

C2 is variance, I remove this since the abstract is too long. 

"β_2 ~0.28" --> "β_{2,U} ~0.28”

done 

line 19: "and γ~0" --> not sure how this can be said without saying anything about v_3 measurement. If you want to say it then say something like "from v_2^2-[p_T] and v_3^2-[p_T]..."

Gamma can be detected by the mean pt fluctuations. This is nothing with vn-pT correlations.  

"between the isobar show" --> "between the isobars show”

done 

line 23: "exhibit rich patterns..." --> this part is not necessary can be removed 

done 

line 24: "as a function of centrality" --> "as a function of multiplicity" (for your analysis we stick to small bins in multiplicity)

We may be also going to show it as a function of centrality? Right now it’s Nch. We also show this in PWG meeting and there are 5 months until now.So it’s better to hold this? Thank you. 

line 25: "in Ru nucleus β_{2,Ru} ~0.16" --> "in Ru nucleus ( β_{2,Ru} ~0.16)” 

Done 

"Zr nucleus β_{2,Zr} ~0.2" --> "in Zr nucleus (β_{2,Zr}~0.2)”

Done 

Lines starting from 

"The non-monotonic dependence of.."

to 

"...radial structure of isobar nuclei"  can be removed

I may think it’s important to use this sentence to guide people the importance of the non-monotonic trend. 

"a first observation" --> "the first observation” 

done 

ShinIchi

This abstract is generally too long, we do not need to give all resulting numbers and to make it compact.

Thank you for the suggestions. 

Please give two measurements (UU/AuAu and Isobar/AuAu) with several sets of observables out of (v2, v3, [pT] flucutuation, v2-[pT] correlations) and about the extracted quantities (b2, b3, gamma) for each case.  

L12,14: Is v2 a usual average over all events, or event by event [v2], especially when you say v2-[pT] correlation?

Event by event v2, vn-[pT], basically we follow our and other published papers.  To avoid confusing, I change the event by event mean pT, but hold the vn-[pT] correlations. [v2] may not be the correct way. Anyway, I make the abstract more clear now. 

L16: c2 is not defined…

Remove it. That’s too long 

Since you mention the radial structure at the end, so it might be better to relate this study with skin/halo structure talk from Haojie, as it might anyway be requested to be merged with him by QM.

Personally, we are going to avoid to be merged by QM committee since nuclear deformation and neutron skin are all important in both high and low energy communities. We studied the mean pt fluctuations from mean to kurtosis induced by the radial flow that’s why we mentioned radial structure. Another reason is  we need to study and understand the behind physics clearly not just show it but don’t give people the reasons/dominances. If we don’t say anything about this, I may think my talk abstract is biased? To avoid the conflict, I only conservatively mention the radial structure and I would not mention any “neutron skin/halo” words in my talk abstract. 

Best regards 

Chunjian 

On Nov 22, 2021, at 1:35 AM, ShinIchi Esumi via Star-fcv-l <star-fcv-l AT lists.bnl.gov> wrote:

Dear Chunjiang (and Jiangyong)

The followings are comments on your merged talk abstract from conveners. 

Best regards, Jiangyong, Prithwish and ShinIchi

---------------------------------------

Abstract is too long. We suggest the PAs to reduce it. Shorten the introduction &  U+U/Au+Au part in particular. 

"Observation and detailed measurements of nuclear deformations at STAR"

-->

"Observation and detailed measurements of nuclear deformations in Au+Au, U+U and isobar collisions from STAR"

"therefore they can be probed" --> "and therefore, can be probed"

"ratios of flow observations" --> "ratios of flow measurements"

"This talk present two set" -->"We present two sets"

"varianc" -->"variance"

"ratio of v_2 and c_2" --> "ratio of v_2 and v_2^2" ? (avoid additional symbol"

"β_2 ~0.28" --> "β_{2,U} ~0.28"

line 19: "and γ~0" --> not sure how this can be said without saying anything about v_3 measurement. If you want to say it then say something like "from v_2^2-[p_T] and v_3^2-[p_T]..."

"between the isobar show" --> "between the isobars show"

line 23: "exhibit rich patterns..." --> this part is not necessary can be removed 

line 24: "as a function of centrality" --> "as a function of multiplicity" (for your analysis we stick to small bins in multiplicity)

line 25: "in Ru nucleus β_{2,Ru} ~0.16" --> "in Ru nucleus ( β_{2,Ru} ~0.16)" 

"Zr nucleus β_{2,Zr} ~0.2" --> "in Zr nucleus (β_{2,Zr}~0.2)"

Lines starting from 

"The non-monotonic dependence of.."

to 

"...radial structure of isobar nuclei"  can be removed

"a first observation" --> "the first observation" 

ShinIchi

This abstract is generally too long, we do not need to give all resulting numbers and to make it compact. Please give two measurements (UU/AuAu and Isobar/AuAu) with several sets of observables out of (v2, v3, [pT] flucutuation, v2-[pT] correlations) and about the extracted quantities (b2, b3, gamma) for each case.  

L12,14: Is v2 a usual average over all events, or event by event [v2], especially when you say v2-[pT] correlation?

L16: c2 is not defined...

Since you mention the radial structure at the end, so it might be better to relate this study with skin/halo structure talk from Haojie, as it might anyway be requested to be merged with him by QM.

---------------------------------------

On Nov 17, 2021, at 11:18, webmaster--- via Star-fcv-l <star-fcv-l AT lists.bnl.gov> wrote:

Dear star-fcv-l AT lists.bnl.gov members,

ChunJian Zhang (chun-jian.zhang AT stonybrook.edu) has submitted a material for  
a review, please have a look:
https://drupal.star.bnl.gov/STAR/node/57273

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