STAR Flow, Chirality and Vorticity PWG

["Junyi Han" <jyhan AT mails.ccnu.edu.cn>]

Dear Subhash,

Sorry for late upload of these proceedings. I will post these as early as possible next time. 

Thank you for your detailed reading and good suggestions and comments!

Here are some mainly changes:

l#4: "The strange particles produced in the “fireball” interact with the surrounding hadron matter and may eventually combine with the nucleon to form a bound state." --> "The interations between the hadronic matter produced in HICs will lead to the formation of bound states."

l#9: "study the hyperon-nucleon(Y-N) interactions in the QCD equation of state". Explanation: Perhaps my _expression_ was incorrect, Y-N interactions may influence the properties of hyper-nuclei, these may be possible help us to understand QCD EOS better.

l#30: mention the typical value of EP resolution. I add "The event plane resolution can reach over 70% at 3.2 GeV." after "...high event plane resolution."

The updated version can be found in this link: https://drupal.star.bnl.gov/STAR/system/files/SQM2024_proceedings_JunyiHan_v2.pdf.

Best regards,

Junyi

 

 

------------------ Original ------------------

From:  "webmaster"<webmaster AT star.bnl.gov>;

Date:  Mon, Sep 9, 2024 10:26 AM

To:  "STAR Flow, Chirality and Vortici"<star-fcv-l AT lists.bnl.gov>;

Subject:  [[Star-fcv-l] ] STAR presentation by Junyi Han for SQM-2024 got commented by Subhash Singha

 

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

Subhash Singha ( connectsubhash AT gmail.com ) has commented on a material 
originally submitted by Junyi Han ( jyhan AT mails.ccnu.edu.cn ) at
https://drupal.star.bnl.gov/STAR/presentations/SQM-2024/Directed-Flow-Lambda-prescript3Lambdarm-H-and-prescript4Lambdarm-H-AuAu-col-0

Comment:
Dear Junyi,


Nice proceedings. I have a few suggestions and comments below?0?2 for your 
consideration:
Abstract:"In this presentation" -->?0?2 In these proceedings,"We will show" --> 
we present"energy dependence of the directed flow" --> energy dependence of 
the directed flow (v1)"These hyper-nuclei results will be compared" --> These 
hyper-nuclei results are compared"Finally, discussions ... calculations" 
--->?0?2Finally, these results are compared with a hadronic transport model 
including coalescence after-burner.

l#3: substances --> QCD matter"The extremely?0?2.... high density substances" 
--> An extremely high temperature and high density matter is produced 
...delete "are known as "fireball"."
l#4: "The strange particles produced in the “fireball”5 interact with the 
surrounding hadron matter and may eventually combine with the nucleon to?0?26 
form a bound state" --> please?0?2rephrase this line.
l#9:?0?2Could you please explain how Y-N enters into QCD EoS?
l#14: need a reference for thermal model"In secondly phase of RHIC-STAR 
Au+Au..." -->?0?2In the second phase of the RHIC Beam Energy Scan program, the 
collision energy for fixed-target Au+Au collisions is extended down to 3 GeV.
l#22: in the centar of mass energy s_NN --> at s_NN
l#30: mention the typical value of EP resolution
l#35: "The decay channels used for are:" -->?0?2The following decay channels 
are used: ....l#38: "by?0?2rotation method." -->?0?2by rotating one of the 
daughter tracks by XX degree.
l#42: "Due to the collective flow ...?0?2for comparison" -->?0?2Since collective 
flow depends on pT, we select a similar pT/A range (approximately 0.4 < pT/A 
< 0.8 GeV/c) for comparison for a given particle.
l#45: "to fit. Where the p0 = (v1)s = dv1/dy|y=0 is the mid-rapidity?0?2slope." 
--> to extract the v1 slope (p0 = (v1)s = dv1/dy|y=0).
l#46: "Due to the statistics is poor" --> Due to?0?2poor statistics
l#47: "In all fitting processes, zero48 point (0, 0) is forced going through, 
taking the advantage of the symmetry" -->?0?2Taking the advance of symmetry in 
v1 near mid rapidity, the fit functions are enforced to pass through (0, 0).
l#52: "The top part ... bottom part" --> The top panels present .... and 
bottom panels present ....
l#60: "From the results, we can find with the col61lision energy increases, 
the mid-rapidity v1 slope of light-nuclei and hyper-nuclei decreases" 
-->?0?2From the results, we observe that as the collision energy increases, the 
mid-rapidity v1 slope of light nuclei and hypernuclei decreases.
l#62: "From the comparison, the hadronic transport model with coalescence 
afterburner calculations?0?2?0?2are also added, which is consistent with observed 
energy denpendence results from data." -->?0?2In the comparison, hadronic 
transport model calculations with a coalescence afterburner are also 
included, which are consistent with the observed energy dependence in the 
data.
l#65: efficiency --> reconstruction efficiency
l#70: "The results in this analysis imply coalescence procedure?0?271 dominants 
the formation mechanism. And the hadronic transport model calculations 
are?0?272 consistent with observed mass and energy dependence" -->?0?2The results 
of this analysis suggest that the coalescence process could be a dominant 
mechanism in the formation of light nuclei and hypernuclei. Additionally, the 
hadronic transport model calculations are consistent with the observed mass 
and energy dependence.
l#72: "In the next, STAR has collected 2?0?2?0?2billion events for 3.0 GeV Au+Au 
collisions which will help us to constrain coalescence4 parameters for both 
light-nuclei and hyper-nuclei." -->?0?2billion events from 3.0 GeV Au+Au 
collisions. Analysis of this data will provide improved precision, leading to 
stronger constraints on the coalescence parameters for both light nuclei and 
hypernuclei.

ps: please remember to post proceedings at least two weeks?0?2before the 
deadline so we have enough time to go through.

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