STAR Correlations and Fluctuations PWG

[Nu Xu <nxu AT lbl.gov>]

Dear Anna and All,

The results and discussions shown in the manuscript are very nice, thank you!
Here are my comments/questions:

0) Fig.1: There is a clear contributions from pile-up, especially for the 
most central bin. Do we know the fraction of the pile-ups?

1) page 4 - PID plot: The dE/dx plot shows many anti-proton candidates which 
I think is miss-leading. For example, one does not see any trace of 
anti-protons in the low ToF plot.
If you still want to show the dE/dx plot, I would suggest add the cut of TOF 
and re-plot it;

2) page 7 - Fig. 5:  As one can see that it is not always the case that the 
size parameters of pion- are larger than that of pion+. For R_out, the kT 
dependences for both pion- and pion+ are almost identical. However, in cases 
of R_side and R_long, pion- size parameters are always larger than that of 
pion+. This is also true in Fig.6. Please modify the last sentence in Page 8, 
first paragraph;

Question: can UrQMD reproduce the observed differences?

3) Line 227: I do not understand the sentence. In case of boost-invariant, 
what would be the rapidity dependence of the R_out-long?

4) Last sentence - page 9 - line 242: emission time tau is proportional to 
\sqrt(R_out^2 - R_side^2). If R_side(pion-) > R_side(pion+), tau(pion-) 
should be smaller than that of tau(pion+), right?
Do we understand this observation? 

That is all for now. Hope this will help the discussion.

Nu


> On Dec 21, 2023, at 5:45 AM, Anna Kraeva via Star-cf-l 
> <star-cf-l AT lists.bnl.gov> wrote:
> 
> Dear Conveners,
> 
> Could you please have a look at my proceeding?
> Thank you very much in advance!
> 
> Best regards,
> Anna
> 
> сб, 16 дек. 2023 г. в 00:00, webmaster--- via Star-cf-l 
> <star-cf-l AT lists.bnl.gov>:
> Dear star-cf-l AT lists.bnl.gov members,
> 
> Anna Kraeva (annakraeva555 AT gmail.com) has submitted a material for a 
> review,  
> please have a look:
> https://drupal.star.bnl.gov/STAR/node/66284
> 
> ---
> If you have any problems with the review process, please contact  
> webmaster AT www.star.bnl.gov
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