STAR Flow, Chirality and Vorticity PWG

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

Dear Subhash,

Thanks you very much for your nice comments, I have updated new version 
with your suggestions in the same link:
https://drupal.star.bnl.gov/STAR/node/66061

Best regards,
Xingrui

> Dear Xingrui,
>
> Nice proceedings. I have a few suggestions below for your 
> consideration:
>
> It would be good if you can add line numbers in the next iteration.
> Please check for typos using latex command.
>
> Abstract:
> ---------------------------------
> "In this proceeding," --> In these proceedinga,
> "This measurements" --> These measurements
>
> 2 Global polarization results:
> ---------------------------------
> "The significance of splitting between Λ and Λ¯ global polarization is
> not obvious due to the magnetic field effects in the beam energy scan
> I (BES-I) program."
> --> The significance of splitting between Λ and Λ¯ global
> polarization, expected from the magnetic field, is not obvious from
> the data collected in the beam energy scan I (BES-I) program.
>
> "acquired 10 times statistics data sets at..." --> acquired about 10
> times statistics at .. GeV datasets than that of BES-I.
>
> "The splitting integrated over 20-50% centrality as a function of
> collision energy in Au+Au collisions, results show no statistically
> significant PΛ¯ − PΛ"
> --> The polarization splitting (PΛ¯ − PΛ), integrated over 20-50%
> centrality, is not statistically significant for Au+Au collisions at
> 19.6 and 27 GeV from BES-II.
>
> "The trend of the results" --> The polarization results or simply the
> results ...  from central to peripheral collisions.
>
> "For better precision," --> In order to achieve a better precision in
> polarization splitting,
>
> "which indicates that no magnetic field effects on the hyperon
> polarization is observed in isobar collisions within current
> statistical limitation"
> --> suggest to start a new line:
> It indicates that there is no magnetic field driven effects on the
> hyperon polarization with present statistical precision.
>
>
> "indicating there might be little collision system size dependence."
> --> indicating there no obvious collision system size dependence.
>
> "The hydrodynamic model calculation from Λ polarization scarion and S
> -quark polarization scarion both consistent with the experiment
> data." --> Add a reference;
> "S-quark" --> s-quark
>
>
> 3 Local polarization results
> ---------------------------------
> "Figure 3 shows ⟨cosθ∗p⟩ " --> you could define \theta_p^star
>
> "The signal on figure 3 (left) shows a clear sine modulation,"
> --> The left panel in figure 3 shows a clear sine modulation in
> polarization signal,
>
> "The trend is similar to that in Au+Au collisions and signal is more
> significant."
> --> The pattern in isobar collisions is similar to that in Au+Au with
> better statistical significance. (check if this is what you mean)
>
> "v3 driven polarization" --> triangular flow driven polarization
>
> "Figure 4 (a) presents the centrality dependence of the second and
> third Fourier sine coefficients of the local polarizaiton. "
> --> Figure 4 (a) presents the comparison of centrality dependence
> local polarization with respect to second and third Fourier sine
> coefficients.
>
> "The increase of the results with centrality is in line with the
> increasing of elliptic flow magnitude towards peripheral collisions. A
> significant local
> polarization with respect to the third-order event plane has been
> observed which increases with centrality.  The results show no
> significant difference between the second-order and third-order local
> polarization within uncertrainties."
> --> The results from second order is consistent with expected increase
> in elliptic flow magnitude towards peripheral collisions. The results
> from third order also increases from central to peripheral collisions.
> However, there is no significant difference between the second-order
> and third-order local polarization within present uncertainties.
>
> "has been observed comparing isobar and Au+Au collisions..."
> --> has been observed when comparing isobar and Au+Au collisions ...
>
> Figure 5 --> correct the typos in caption
>
> "Figure 5 shows the first study of Spin Hall Effect(SHE) in Au+Au
> collisions atat √sNN = 19.6, 27 GeV (BES-II). A hint of negative
> signal observed but the significance is not enough. The hadrodynamics
> model also give an prediction of the SHE as a function of collision
> energies with different polarization scenario[5]. SHE study at more
> collision energies is under the way."
>
> --> Figure 5 presents the net local polarization of Λ and Λ¯, an
> observable designed to probe the baryonic Spin Hall effect (SHE), in
> Au+Au collisions at √sNN = 19.6 and 27 GeV (BES-II). The negative sign
> of net polarization does not support a scenario of SHE at the measured
> energies. However, measurements at lower energies, where SHE signal is
> anticipated, are currently in progress.
>
>
>
>
>
>
> 4 Summary
> ---------------------------------
> 19.6, 27 GeV --> 19.6 and 27 GeV
>
> "For global polarization, Λ and Λ¯ results are consistent, showing"
> --> The global polarization of Λ and Λ¯ are consistent within current
> statistical precision, indicating ....
>
> "Global polarization results are consistent between Ru+Ru, Zr+Zr, and
> Au+Au collisions. No obvious collision system size dependence is
> observed."
> --> The global polarization is consistent across different collision
> system sizes Ru+Ru, Zr+Zr, and Au+Au at same beam energy.
>
> "Hint of negative net local polarization has been observed in Au+Au
> collisions at √sNN = 19.6, 27 GeV"
> --> An observable of net local polarization, designed to probe
>
> "study at more beam energies is underway."
> --> Global and local polarization studies at other BES-II energies are 
> underway.
>
> Thanks and regards,
> Subhash
>
>
> On 2023-11-23 11:02 AM, webmaster--- via Star-fcv-l wrote:
> > Dear star-fcv-l AT lists.bnl.gov members,
> >
> > Xingrui Gou (Gouxr AT sdu.edu.cn) has submitted a material for a review, 
> > please
> > have a look:
> > https://drupal.star.bnl.gov/STAR/node/66061
> >
> > ---
> > If you have any problems with the review process, please contact
> > webmaster AT www.star.bnl.gov
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