STAR Flow, Chirality and Vorticity PWG

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

Dear Niseem, Gaoguo,

Nice abstract. I sign off with two minor suggestions:

It might be good if you can indicate the energies (or range) where you 
plan to perform these studies. e.g. 7.7 - 39 GeV.

l#14: Gavin ansatz --> ansatz proposed by Gavin et. al.

Thanks and regards,
Subhash


On 2023-04-25 05:54 AM, webmaster--- via Star-fcv-l wrote:
> Dear star-fcv-l AT lists.bnl.gov members,
>
> Prithwish Tribedy ( ptribedy AT bnl.gov ) has commented on a material 
> originally
> submitted by Niseem Magdy Abdelwahab Abdelrahman ( 
> niseemmagdy AT yahoo.com ) at
> https://drupal.star.bnl.gov/STAR/presentations/Quark-Matter-2023/Characterizing-initial-and-final-state-effects-relativistic-heavy-io
>
> Comment:
> Nice abstract! Overall, it's well-written and informative. However, I 
> think
> the current version of the abstract needs to be revised to make it more
> appealing and competitive by emphasizing what is new. Additionally, 
> slight
> restructuring can enhance the flow and coherence of the abstract with 
> minimal
> modifications. The format of defining observables in the reference is 
> not
> very convenient, we should put them back in the main text.
>
> Following are my comments for you to consider.
>
> I think the title is too general. Here is an alternative proposal:
>
> "Characterizing initial- and final-state effects of relativistic 
> heavy-ion
> collisions"
> -->
> "New Constraints on 3D initial state and transport parameters of QGP 
> using
> the Beam Energy Scan phase II data of STAR"
>
>
> "for the Quark-Gluon Plasma (QGP)" --> "of the Quark-Gluon Plasma (QGP)
> medium"
>
> "is a major objective" --> "is one of the major objectives"
>
> Overall, I suggest you revise the first sentence as:
>
> "Constraining the three-dimensional structure of the initial state and
> transport properties, such as the shear viscosity to entropy density 
> ratio
> ($\eta/s$), at different temperatures ($T$) and baryon chemical 
> potentials
> ($\mu_B$), is a critical objective of heavy-ion programs at RHIC and 
> the
> LHC."
>
>
>
> I would bring line 15-16 after thte first line with a minor revision:
>
> "These results are obtained from a comprehensive set of measurements 
> for
> various shape and centrality selections of Au+Au collisions at RHIC 
> BES-I and
> BES-II energies."
>
> -->
>
> "In this contribution, we present comprehensive measurements on both 
> topics
> for various event shapes and centrality selections of Au+Au collisions 
> at
> RHIC BES-I and BES-II energies."
>
> "various shapes" --> "various event-shapes"
>
> After this line, we should put lines 10-12. There are three types of
> variables that are sensitive to the initial state, final state, and 
> both. I
> would separate them and highlight the individual aspects separately.
>
> "We present the first measurements of the beam energy dependence of
> higher-order flow-angular correlations/de-correlations and 
> flow-magnitude
> correlations, which provide insights into the heavy-ion initial 
> conditions."
> -->
> "We present new measurements on the beam energy dependence of 
> higher-order
> flow-angular de-correlations ($r_n(\eta_a,\eta_b)$) that are sensitive 
> to the
> 3D-initial state."
>
> After this line add:
> "We also study previously unexplored observables that are selectively
> sensitive to the viscous attenuation in the final state, such as the
> transverse momentum correlator $G_2(\Delta\eta,\Delta\varphi)$ [1]. We
> observe a non-monotonic behavior in the longitudinal width of
> $G_{2}(\Delta\eta, \Delta\varphi)$ with the collision energy, which is
> expected to be proportional to $\eta/s$ according to the Gavin ansatz 
> [1]."
>
>
> Please correct the typo:
> "the transverse momentum
> correlator G2(∆η, ∆∆φ)" --> "the transverse momentum
> correlator G2(∆η, ∆φ)"
>
>
> We can revise the statement about the other observables as:
> "We further explore observables based on two- through n-particle 
> correlations
> $\langle\cos(a_{1}n_{1}\Psi_{n1}+\cdots+a_{k}n_{k}\Psi_{nk})\rangle$, 
> as well
> as flow-magnitude correlations SC(n,m){2} and SC(n,m){4}, which are 
> predicted
> to be sensitive to both initial and final state effects."
>
>
> The following line suits very well as the next sentences (I'd leave 
> them as
> they are):
> "We compare our findings ..... hydrodynamic calculations. Through our
> analyses, ......
>
>
>
>
>
>
>
> ---
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