STAR Flow, Chirality and Vorticity PWG

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

Dear Nasim,

Thank you for your suggestion. Please find the link to AMPT study of v2 
of protons here: 
https://drupal.star.bnl.gov/STAR/system/files/ampt_v2_protons.pdf.

Please let me know if you have any further suggestions for me.

Thanks and regards,
Rishabh



On 2023-08-29 15:32, Md. Nasim via Star-fcv-l wrote:
> Hi Rishabh,
>                    I have one suggestion for slide 12.
> It is nice to see that AMPT+Coal explain the v2 of deuterons. It would
> be good to check if AMPT can explain the v2 of protons or not.
> If AMPT fails to explain the v2 of protons but AMPT+Coal explains v2
> of deuterons, then we need to be careful while making a conclusion
> from it.
>
> On Tue, Aug 29, 2023 at 2:38 AM Sooraj Radhakrishnan via Star-fcv-l
> <star-fcv-l AT lists.bnl.gov> wrote:
>
> > Hi Rishabh,
> > Thanks for preparing the nice presentation and the interesting
> > results. Please find a few comments from me below
> >
> > It is somewhat surprising that v3 shows good mass scaling, while v2
> > doesn't. Is there an explanation for this?
> >
> > From BES-I results, we had claimed that mass number scaling holds
> > for v2 within pT/A < 1.5 GeV (PRC 94, 034908 (2016)). With BES-II we
> > see deviations. Do you have a comparison of the BES-I and BES-II
> > results for the different particle species?
> >
> > S4: What is the equation about?
> > S4: Why is the fluctuating initial conditions relevant here?
> > S5: Please include EPD and ETOF also under BES-II upgrades
> > S5: track momentum and event plane?
> > S6: What is track resolution?
> > S9: What is the low pT you refer to here? Please indicate the range
> > S12: seems to be --> is in
> > S15: Can you quantify the extend of scaling? May be fit a constant
> > to your lower plots and evaluate the value and uncertainty. This
> > should tell you to within what percentage you can claim v3 scaling
> > S16: seems to be --> is in
> >
> > S17: You could also point to other light nuclei flow results from
> > STAR (Chengdong's talks for eg). In th outlook, you can indicate the
> > remaining energies to be measured and their relevance
> >
> > Best,
> > Sooraj
> >
> > On Mon, Aug 28, 2023 at 7:09 AM rishabh via Star-fcv-l
> > <star-fcv-l AT lists.bnl.gov> wrote:
> >
> > > Dear Subhash,
> > >
> > > Thank you for your comments. Please find the revised version of
> > > slides
> > > here: https://drupal.star.bnl.gov/STAR/node/64854.
> > >
> > > > s#4: This is for my understanding, how light nuclei v3 of has
> > > better
> > > > sensitivity to initial fluctuation, if they are formed at later
> > > stage?
> > >
> > > Nucleons will propagate the initial state fluctuations if the
> > > light
> > > nuclei are formed by the coalescence mechanism.
> > >
> > > > s#9: Could you indicate the fraction of reduction in error in
> > > BES-II
> > > > relative to BES-I?
> > >
> > > The improvement in statistical uncertainty varies from particle to
> > >
> > > particle and with the pT bin. On average, we observe a 30–40%
> > > improvement in BES-II energies compared to BES-I energies.
> > > Instead of writing it down on the slide, I was hoping, just like
> > > in my
> > > SQM talk, that I could tell the fraction while delivering the
> > > talk.
> > > Please let me know if that is okay.
> > >
> > > > s#14: At the lowest pT, I see v3 of p and d are consistent. It
> > > might be
> > > > better if you specify the pt-range for which mass dependence is
> > > > observed.
> > >
> > > Implemented.
> > >
> > > > s#15: You can indicate fit to proton data beside the function in
> > > the
> > > > legend. The Y-axis scale of the bottom panels is very large, can
> > > you
> > > > try reducing them, so the level of scaling would be clearly
> > > visible.
> > >
> > > Implemented.
> > >
> > > Please let me know if you have any further suggestions for me.
> > >
> > > Thanks and regards,
> > > Rishabh
> > >
> > > On 2023-08-28 13:14, subhash via Star-fcv-l wrote:
> > > > Dear Rishabh,
> > > >
> > > > Nice slides. I have a few suggestions for your consideration:
> > > >
> > > > s#4: This is for my understanding, how light nuclei v3 of has
> > > better
> > > > sensitivity to initial fluctuation, if they are formed at later
> > > stage?
> > > > s#9: Could you indicate the fraction of reduction in error in
> > > BES-II
> > > > relative to BES-I?
> > > >
> > > > s#14: At the lowest pT, I see v3 of p and d are consistent. It
> > > might
> > > > be better if you specify the pt-range for which mass dependence
> > > is
> > > > observed.
> > > >
> > > > s#15: You can indicate fit to proton data beside the function in
> > > the
> > > > legend.
> > > > The Y-axis scale of the bottom panels is very large, can you try
> > > > reducing them, so the level of scaling would be clearly visible.
> > > >
> > > >
> > > > Thanks and regsrds,
> > > > Subhash
> > > >
> > > >
> > > > On 2023-08-24 10:01 PM, webmaster--- via Star-fcv-l wrote:
> > > > > Dear star-fcv-l AT lists.bnl.gov members,
> > > > >
> > > > > Rishabh Sharma (rishabhsharma AT students.iisertirupati.ac.in) has
> > >
> > > > > submitted a
> > > > > material for a review, please have a look:
> > > > > https://drupal.star.bnl.gov/STAR/node/64854
> > > > >
> > > > > Deadline: 2023-09-03
> > > > > ---
> > > > > If you have any problems with the review process, please
> > > contact
> > > > > webmaster AT www.star.bnl.gov
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> >
> > --
> >
> > Sooraj Radhakrishnan
> >
> > Research Scientist,
> > Department of Physics
> >
> > Kent State University
> > Kent, OH 44243
> >
> > Physicist Postdoctoral AffiliateNuclear Science Division
> > Lawrence Berkeley National Lab
> > MS70R0319, One Cyclotron Road
> > Berkeley, CA 94720
> > Ph: 510-495-2473 [1]
> >
> > Email: skradhakrishnan AT lbl.gov
> > _______________________________________________
> > Star-fcv-l mailing list
> > Star-fcv-l AT lists.bnl.gov
> > https://lists.bnl.gov/mailman/listinfo/star-fcv-l
>
> --
>
> Thanks,
> With Best Regards,
> Nasim
>
> ----------------------------------------------------------------------------------------------
> Md Nasim
>
>
> Assistant Professor
> Department of Physics
> Indian Institute of Science Education and Research (IISER) Berhampur,
> Engineering School Road,
> Berhampur, Odisha 760010India
> ------------------------------------------------------------------------------------------------
>
>
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