star-fcv-l AT lists.bnl.gov

Subject: STAR Flow, Chirality and Vorticity PWG

List archive

Re: [Star-fcv-l] STAR presentation by Chengdong Han for Quark Matter 2023 submitted for review

From: 韩成栋 <chdhan AT impcas.ac.cn>
To: "STAR Flow, Chirality and Vorticity PWG" <star-fcv-l AT lists.bnl.gov>
Subject: Re: [Star-fcv-l] STAR presentation by Chengdong Han for Quark Matter 2023 submitted for review
Date: Thu, 23 Nov 2023 22:41:47 +0800 (GMT+08:00)

Dear Subhash,

Thank you very much for your nice and kind comments, I have updated my
proceeding
with your suggestions in the link: https://drupal.star.bnl.gov/STAR/node/66064

Thank you for your attention.

Best regards,

Chengdong Han

> -----Original Messages-----
> From: "subhash via Star-fcv-l" <star-fcv-l AT lists.bnl.gov>
> Sent Time: 2023-11-23 17:17:21 (Thursday)
> To: "STAR Flow, Chirality and Vorticity PWG" <star-fcv-l AT lists.bnl.gov>
> Cc: subhash <subhash AT rcf.rhic.bnl.gov>
> Subject: Re: [Star-fcv-l] STAR presentation by Chengdong Han for Quark
Matter 2023 submitted for review
>
>
> ps: For the next iteration, please add latex line numbers.
>
>
> On 2023-11-23 05:15 PM, subhash via Star-fcv-l wrote:
> > Dear Chendong,
> >
> > Nicely proceedings. I have a few suggestions below for your
> > consideration:
> >
> > Abstract:
> > --------------------
> > "These results imply that the coalescence procedure dominants the
> > formation mechanism"
> > --> These results suggest that the coalescence mechanism plays a
> > dominant role in the formation of light- and hyper-nuclei.
> >
> >
> > 1 Introduction
> > --------------------
> > "The RHIC two-phase Au + Au collisions beam energy scanning
experiment
> > BES-I and BESII is to produce nuclear matter with different
> > temperatures and baryon chemical potentials by changing the
collision
> > energy, to find the first-order phase transition and QCD critical
> > point in high baryon density region."
> > --> The two phases of the Beam Energy Scan program at RHIC,
BES-I and
> > BES-II, aim to investigate nuclear matter at different temperatures
> > and baryon chemical potentials by colliding gold nuclei at various
> > collision energies. The goal is to identify the first-order phase
> > transition and the QCD critical point within the high baryon density
> > region.
> >
> >
> > "so it is possible to study the collective flow of light- and
> > hyper-nuclei." --> you can probably make a new sentence: This
allows
> > for the study of the collective flow of light- and hyper-nuclei.
> >
> > "Where the light-nuclei carry information about local baryon density
> > fluctuations at freeze-out, which offers insights on the final state
> > nucleon-nucleon (N−N) interaction. And hyper-nuclei provide access
to
> > the hyperon-nucleon (Y −N) interaction."
> > --> A better rephrase: Light-nuclei, in particular, carry
information
> > about local baryon density fluctuations at freeze-out, providing
> > insights into the final state nucleon-nucleon (N−N) interaction.
> > Hyper-nuclei, on the other hand, offer access to the hyperon-nucleon
> > (Y−N) interaction.
> >
> > "mainly because of it is genuinely sensitive to early collision
> > dynamics."
> > --> primarily due to its sensitivity to the early dynamics of
the
> > collision.
> >
> > "The first harmonic coefficients" --> The first harmonic
coefficient
> > .... called the directed flow (v1), has been analyzed using
different
> > particle species.
> >
> > 2 Experiment and data analysis
> > --------------------
> > "setup in 2018 for the center-of-mass energy √sNN = 3.0 GeV, in 2019
> > for 3.2 GeV, in 2020 for 3.5 GeV and 3.9 GeV"
> > --> setup during 2018-2020 for the center-of-mass energies at
√sNN =
> > 3.0, 3.2, and 3.9 GeV
> >
> > "The main charged-particle tracking and particle identification
> > detectors are the Time Projection Chamber (TPC) [11] and the
> > Time-of-Flight (TOF) barrel [12] placed inside a 0.5 T solenoidal
> > magnetic field along the beam direction."
> > --> I think you can split it into two sentence: TPC is used for
> > tracking, while a combination of TPC=TOF is used for PID.
> >
> > " In order to balance the..."
> > --> I suggest to rewrite something like: In order to achieve
better
> > precision, ....
> >
> > "Fig.1 shows the reconstructed invariant mass distributions for 3ΛH
> > and 4ΛH 2-body decay with topological cuts and phase space cut of
3.2,
> > 3.5 and 3.9 GeV, and obvious hyper-nuclei signals with good
> > significance can be observed."
> > --> Fig.1 shows the reconstructed invariant mass distributions
for 3ΛH
> > and 4ΛH 2-body decay using phase space listed in Table 1 for 3.2,
3.5
> > and 3.9 GeV. Combinatorial backgrounds for hyper-nuclei are
> > constructed by rotating decay daughter particles through a random
> > angle between 10◦ and 350◦. The signal is fitted with a Gaussian
plus
> > a linear function ....
> >
> > "Due to the collective flow dependent on the pT range, "
> > --> Since the collective flow depends on the pT range of particle
> > species, for a meaningful comparison we use same pT /A range when
> > comparing different species and it is listed in Table-1.
> >
> > "Due to the statistics is poor for 3 ΛH and 4ΛH...."
> > --> Due to limited statistics for 3 ΛH and 4ΛH
> >
> > " In all this fit, zero point (0,0) is forced going through, taking
> > the advantage of the symmetry"
> > --> In all the above cases, the fit is constrained to pass
through
> > (0,0) taking the advantage of the symmetry.
> >
> > "arising from the particle misidentification determined by varying
the
> > cuts on z and m2"
> > --> arising from the particle misidentification.
> > Here z and m2 are not defined.
> >
> >
> >
> > 3 Results and Discussion
> > --------------------
> > "For comparison, the hadronic transport model (JAM2) with
coalescence
> > afterburner calculations are also added, which is consistent with
> > observed energy dependence."
> > --> The hadronic transport model (JAM2) with coalescence
afterburner
> > calculations are consistent with observed energy dependence.
> >
> >
> > 4 Summary
> > --------------------
> > "In this paper we report the collision energy and particle mass of
the
> > directed flow"
> > --> In these proceedings, we report the collision energy and
particle
> > mass dependence of the directed flow (v1) ... at in 3.0, 3.2, 3.5
and
> > 3.9 GeV ...
> >
> > "Calculations of hadronic transport model plus coalescence
afterburner
> > .... "
> > --> Calculations of hadronic transport JAM model with a
coalescence
> > afterburner can qualitatively reproduce the observed dependence for
> > hyper-nuclei as well as light-nuclei collective flow measurements.
It
> > suggests that the dominant process in the underlying production
> > mechanism for light clusters is the coalescence process.
> >
> > "The STAR experiment has collected 2 billion events for the 3.0 GeV
Au
> > + Au collisions which will help us to further constrain coalescence
> > parameters for both light- and hyper-nuclei at the high density
> > region."
> > --> Moreover, results from a high statistics 2 billion event
samples
> > for the 3.0 GeV Au + Au collisions will significantly enhance the
> > precision and help constrain coalescence parameters for both light-
> > and hyper-nuclei at the high density region.
> >
> >
> > Thanks and regards,
> > Subhash
> >
> >
> > On 2023-11-23 01:42 PM, webmaster--- via Star-fcv-l wrote:
> >> Dear star-fcv-l AT lists.bnl.gov members,
> >>
> >> Chengdong Han (chdhan AT impcas.ac.cn) has submitted a material
for a
> >> review,
> >> please have a look:
> >> https://drupal.star.bnl.gov/STAR/node/66064
> >>
> >> ---
> >> If you have any problems with the review process, please contact
> >> webmaster AT www.star.bnl.gov
> >> _______________________________________________
> >> Star-fcv-l mailing list
> >> Star-fcv-l AT lists.bnl.gov
> >> https://lists.bnl.gov/mailman/listinfo/star-fcv-l
> > _______________________________________________
> > Star-fcv-l mailing list
> > Star-fcv-l AT lists.bnl.gov
> > https://lists.bnl.gov/mailman/listinfo/star-fcv-l
> _______________________________________________
> Star-fcv-l mailing list
> Star-fcv-l AT lists.bnl.gov
> https://lists.bnl.gov/mailman/listinfo/star-fcv-l
</subhash AT rcf.rhic.bnl.gov></star-fcv-l AT lists.bnl.gov></star-fcv-l AT lists.bnl.gov>

[Star-fcv-l] STAR presentation by Chengdong Han for Quark Matter 2023 submitted for review, webmaster, 11/23/2023
- <Possible follow-up(s)>
- [Star-fcv-l] STAR presentation by Chengdong Han for Quark Matter 2023 submitted for review, webmaster, 11/23/2023
  - Re: [Star-fcv-l] STAR presentation by Chengdong Han for Quark Matter 2023 submitted for review, subhash, 11/23/2023
    - Re: [Star-fcv-l] STAR presentation by Chengdong Han for Quark Matter 2023 submitted for review, subhash, 11/23/2023
      - Re: [Star-fcv-l] STAR presentation by Chengdong Han for Quark Matter 2023 submitted for review, 韩成栋, 11/23/2023