STAR Flow, Chirality and Vorticity PWG

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

On 2021-02-18 09:22, ShinIchi Esumi via Star-fcv-l wrote:
> Dear Prabhupada
> Thanks for the very nice proceeding, I would sign off with some minor 
> comments
> for you to consider in the followings.
>
> L58 : comma “,” just before the “so”.
> L77(and Fig.2) : It looks like you used the data points as a part of
> the fitting function,
> which is good, I would just like to suggest you to include the Minv
> distribution
> (without subtraction) overlaid with normalized mixed BG, just above
> the v2(Minv)
> plot with exactly the same x axis (the same Minv region) and to state
> S,B in the
> fitting function are given by data points (therefore the fitted line
> includes the
> statistical fluctuation from the S and B).
> Fig.4 : Since you always present 27 and 54 GeV data separately, I would 
> overlay
> them at lease once, which could be done in this Fig.4, or at least, to
> have them
> separately as it is now, but choose exactly the same x-y scale of the
> figure and
> add the grid lines in the figure, since I would also like to see the
> comparison between
> two energies, for both data and ampt. Why did you choose to use 3mb
> (default value
> in ampt)?, where I remember data are better described with somewhat
> larger partonic
> cross section at lease for higher energies.
> Best regards, ShinIchi
>
> > On Feb 9, 2021, at 3:10, webmaster--- via Star-fcv-l 
> > <star-fcv-l AT lists.bnl.gov> wrote:
> >
> > Dear star-fcv-l AT lists.bnl.gov members,
> >
> > Prabhupada Dixit (prabhupadad AT iiserbpr.ac.in) has submitted a material 
> > for a
> > review, please have a look:
> > https://drupal.star.bnl.gov/STAR/node/53631
> >
> > ---
> > If you have any problems with the review process, please contact
> > webmaster AT www.star.bnl.gov
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Hi ShinIchi,
Thank you very much for your comments and suggestions. I have tried to 
modify the figures as you suggested. Please have a look at them in the 
link given below.
https://drupal.star.bnl.gov/STAR/system/files/proceedig_V2.pdf
And as you mentioned that the data is better described by higher 
partonic cross-section in AMPT. In that case, maybe the true reaction 
plane is used in the model. But in our case, we did not use the reaction 
plane in our model calculation. We have constructed the event plane in 
the model as we do in data. In the latter case, 3mb is describing the 
data of 54.4GeV well. For 27 GeV (AMPT 3mb fails to explain) we will try 
to tune some other parameters and cross-sections in AMPT in the future.

Thank you
Prabhupada