STAR Flow, Chirality and Vorticity PWG

[subhash <subhash AT rcf.rhic.bnl.gov>]

Dear Zuowen,

Thanks for considering my suggestions and this version reads better. I 
have a few more listed below:

l#10: Furthermore, we ... (smaller case)
l#17: contribution, we ...
l#19: in Fixed Target Au+Au collisions....
l#43: The above data-model comparisons ...

l#51-53: "In contrast with the partonic collectivity .... and below"
--> How about the following
While the existence of partonic collectivity is observed through NCQ 
scaling of v2 at higher BES energies (sNN > 7.7 GeV) [7], the complete 
collapse of NCQ scaling in v2 at √sNN = 3.2 GeV implies that hadronic 
interactions play an important role at this energy and below.

l#60: "v1 slopes of all particles ...increasing"
--> The v1 slopes of all particles (..) decrease in magnitude as 
collision energy increases.

l#61 & 82: Isn't it the opposite of what you mentioned?

l#62-65: "The bottom panel of Fig. 4 show collision energy dependence of 
pT integrated v2, negative v2 turns to positive v2 for all particles 
(π±, K0S, and Λ) within collision energy √ sNN = 3.0 - 3.9 GeV, that 
indicates the change of out-of-plane to in-plane expansion [10] happens 
in √ sNN = 3.0 - 3.9 GeV"
--> The lower panel in Figure 4 depicts the collision energy dependence 
of transverse momentum (pT) integrated v2. It is observed that the sign 
of v2 changes from negative to positive for all particles (π±, K0S, and 
Λ) within the collision energy range of √sNN = 3.0 - 3.9 GeV. This shift 
signifies the transition from out-of-plane to in-plane expansion [10], 
occurring specifically within the mentioned energy range.

l#66: The JAM calculations of Λ are shown by colored bands, where blue, 
red, and black bands stand for cascade mode, baryonic mean field mode, 
and mean field mode without spectators, respectively"
--> The JAM calculations for Λ are represented by colored bands, with 
blue, red, and black bands corresponding to cascade, baryonic mean 
field, and mean field without spectators modes, respectively.

l#68: "Baryonic mean field enhances v1 slope of Λ in √sNN = 3.0 -3.9 
GeV, it indicates there is strong mean field [11] at high baryon density 
region"
--> The comparison of Λ v1 between the data and model calculations 
suggests the presence of a strong baryon mean field [11] in the high 
baryon density region.

l#69-71: "For pT integrated v2, only mean field mode with spectators 
shows sigh change of v2, implies that the spectator shadowing
plays important role in √sNN = 3.0 - 3.9 GeV"
--> Furthermore, the comparison between the measured pT-integrated v2 
and model calculations indicates the significant influence of spectator 
shadowing in the sNN = 3.0 − 3.9 GeV range.


l#83: And negative v2 turns to positive v2, indicates that the change of 
...
--> And the sign change in v2 indicates that the change of ....


Thanks and regards,
Subhash


On 2023-11-30 04:20 PM, Zuowen Liu wrote:
> Dear Subhash,
>
> Thanks a lot for your nice suggestions.
> I have implemented all of them into the proceeding.
> For the typos, I checked again and fixed them.
>
> Kindly find the updated proceeding by the link:
> https://drupal.star.bnl.gov/STAR/system/files/qm23proceeding_Zuowen.pdf
> Thanks again for your great help.
>
> Best regards,
> Zuowen
>
> ------------------ Original ------------------
>
> From:  "subhash"<subhash AT rcf.rhic.bnl.gov>;
> Date:  Wed, Nov 29, 2023 04:47 PM
> To:  "Zuowen Liu"<liuzw AT mails.ccnu.edu.cn>;
> Cc:  "star-fcv-l"<star-fcv-l AT lists.bnl.gov>;
> Subject:  Re: [Star-fcv-l] STAR presentation by Zuowen Liu for Quark
> Matter 2023 submitted for review
>
> Dear Zuowen,
>
> Nice proceedings. Please consider running a latex spell checker to
> spot
> the typos. In general, at several places sentences are not formatted
> properly. I tried to correct. Please get it proof read by a colleague
> in
> your group to check if my interpretations are proper. The followings
> are
> a few suggestions for your consideration:
>
> l#1: you may consider adding "at RHIC" for completeness
>
> l#5: In this proceeding, --> In these proceedings,
>
> l#5,6: may be: transverse momentum dependence of the rapidity slope of
>
> directed flow (dv1/dy|y=0) for π+ and K0S in Au+Au ... and 3.9 GeV.
>
> l#7: Both π+ and K0S show negative
>
> l#8: "spectator shadowing could result in anti-flow at low pT "
> --> spectator shadowing may lead to anti-flow at low pT.
>
> "Furthermore, Number of Constitute Quark (NCQ) scaling of v2 at √
> sNN =
> 3.2 GeV was observed which is completely broken"
> --->
> Furthermore, we observe a complete breaking of Number of Constitute
> Quark (NCQ) scaling of elliptic flow (v2) at √sNN = 3.2 GeV.
> It implies that the dominance of hadronic degrees of freedom occurs at
>
> √sNN = 3.2 GeV and below.
>
> l#12: At last, --> Finally,
>
> "and physical implications are discussed."
> --> and the implications in the context of highly dense baryonic
> matter
> are discussed.
>
> l#16: In this contribution, we present the most recent measurements
> ...
> in Au + Au collisions at √sNN = 3.0 - 3.9 GeV in STAR Fixed Target
> mode
>
> l#18:  For identification of π±, K±, and p, a combination of Time
> Projection Chamber (TPC) and Time of Flight (TOF) is used
>
> l#20-23: Suggest:
> The left panel of Fig. 1 illustrates the rigidity (p/q: particle
> momentum divided by charge) dependence of ionization energy loss
> (dE/dx)
> in the TPC. The dashed line represents the theoretical ionization
> energy
> loss curve for particles passing through the TPC. Particle
> identification by TOF is based on the particle mass square (m^2)
> distribution, which can be obtained from the particle velocity (β).
>
> l#24-26: suggestion:
> Moreover, the Kalman Filter (KF) particle package [3], where the
> covariance matrix of reconstructed tracks is taken into account, is
> employed to reconstruct weak decay particles (KS0 and Lambda).
>
> l#26-28: suggestion:
> An example of reconstructing the invariant mass using the KF particle
> package is demonstrated with the KS0 meson in the right panel of Fig.
> 1.
>
> l#30:  kaon --> Kaon
>
> l#31-33:
> The anti-flow of kaons was first observed  .....  6 A GeV. It was
> attributed to the repulsive potential associated with the strange
> quark
> in K0S.
>
> l#33-36: suggestion:
> We have observed anti-flow behavior in kaons and pions for pT < 0.6
> GeV/c in mid-central Au + Au collisions at 3.0, 3.2, 3.5, and 3.9 GeV
> using the fixed target data from STAR.
>
> l#37-43: suggestion:
> The hadronic transport model JAM [5] calculations are compared with
> experimental data at 3.9 GeV. The JAM model in hadronic cascade mode
> (blue band) can successfully capture the anti-flow pattern at low pT
> for
> π+ and K0S, even without the inclusion of a kaon potential [4].
> However,
> the JAM model with baryonic mean field (red band) tends to
> overestimate
> the v1 slope for π+ and K0S. Additionally, the JAM mean field without
>
> spectator contribution (black band) exhibits a larger v1 slope
> compared
> to the one with spectators. The data-model comparisons above suggest
> that the shadowing effect [6] from the spectator may also play a
> significant role in generating anti-flow at low pT.
>
> l#45-48: suggestion
> The left and right panels of Fig. 3 illustrate the number of
> constituent
> quarks (nq) scaled elliptic flow (v2/nq) as a function of transverse
> kinetic energy ((mT − m0)/nq) for particles (π+, K+, K0S, p, and
> Λ) and
> antiparticles (π−, K−, and K0S), respectively.
>
> l#48-52: please re-format to clarify the sentence.
>
> Thanks and regards,
> Subhash
>
> On 2023-11-25 12:05 PM, Zuowen Liu wrote:
> > Dear Subhash,
> >
> > Kindly find the updated proceeding by the link:
> > https://drupal.star.bnl.gov/STAR/node/65884
> > Thank you.
> >
> > Best regards,
> > Zuowen
> >
> > ------------------ Original ------------------
> >
> > From:  "Zuowen Liu"<liuzw AT mails.ccnu.edu.cn>;
> > Date:  Fri, Nov 24, 2023 04:41 PM
> > To:  "star-fcv-l"<star-fcv-l AT lists.bnl.gov>;
> > Cc:  "subhash"<subhash AT rcf.rhic.bnl.gov>;
> > Subject:  Re: [Star-fcv-l] STAR presentation by Zuowen Liu for Quark
> > Matter 2023 submitted for review
> >
> > Dear Subhash,
> >
> > Thank you for the kind reminder.
> > I would short it to four.
> >
> > Best regards,
> > Zuowen
> >
> > ------------------ Original ------------------
> >
> > From:  "subhash via Star-fcv-l"<star-fcv-l AT lists.bnl.gov>;
> > Date:  Wed, Nov 22, 2023 04:15 PM
> > To:  "star-fcv-l"<star-fcv-l AT lists.bnl.gov>;
> > Cc:  "subhash"<subhash AT rcf.rhic.bnl.gov>;
> > Subject:  Re: [Star-fcv-l] STAR presentation by Zuowen Liu for Quark
> > Matter 2023 submitted for review
> >
> > Dear Zuowen,
> >
> > Thanks for posting your proceedings.
> > I guess there are page limits on the proceedings. It supposed to be
> > 4-page including references, you have 5-pages now.
> > Can you please check and shorten it to fit the limit.
> >
> > Thanks and regards,
> > Subhash
> >
> > On 2023-11-10 05:14 PM, webmaster--- via Star-fcv-l wrote:
> > > Dear star-fcv-l AT lists.bnl.gov members,
> > >
> > > Zuowen Liu (liuzw AT mails.ccnu.edu.cn) has submitted a material for a
> > > review,
> > > please have a look:
> > > https://drupal.star.bnl.gov/STAR/node/65884
> > >
> > > ---
> > > If you have any problems with the review process, please contact
> > > webmaster AT www.star.bnl.gov
> > > _______________________________________________
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> > > Star-fcv-l AT lists.bnl.gov
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> > _______________________________________________
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