STAR Flow, Chirality and Vorticity PWG

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

Dear Subhash,
Thanks for the comments.
At 19.6 GeV the preliminary result for K0S is upto 3GeV. The rising 
trend is after 3GeV. I also had measured v2 in 19.6 GeV above 3GeV and 
compared it with preliminary results. Please have a look at the results 
at 
https://drupal.star.bnl.gov/STAR/system/files/v2_v3_at_19G_FCV_PWG_meeting_17_05_2022_0.pdf
(slide-9). The result shows the rising trend.
My current results is for eta gap of 0.05 and I have not changed it to 
check the affect here. But yes the results should be sensitive to the 
eta gap. Taking a larger eta gap between the event plane and the 
particle track can reduce the non-flow effect. In one of my FCV meeting 
I have presented v2 of K0S at 7.7 GeV BES-II using TPC event plane and 
EPD event plane, where the eta gap is larger. Please have a look at the 
plot: https://drupal.star.bnl.gov/STAR/system/files/epd_tpc.pdf. Here we 
can see the results is sensitive to the eta gap. For estimating the 
non-flow effect I think we have to use measure v2 using larger eta gap 
(e.g using EPD event plane) and compare it with current result. But we 
have not done it yet.

Regards,
Prabhupada
On 2022-11-21 23:48, subhash wrote:
> Dear Prabhupada,
>
> Thanks for addressing my comments.
> I have one more related to KS0 v2, which you addressed in FCV list.
> If the rise in KS0 v2 at 14.6 GeV is likely due to non-flow, why it is
> not observed at 19.6 GeV. Have you checked by playing with the
> eta-gaps if these points are sensitive to it or not? Have you
> estimated non-flow contribution?
>
> Thanks and regards,
> Subhash
>
> On 2022-11-21 01:24 PM, pdixit via Star-fcv-l wrote:
> > Dear Subhash,
> > Thanks for the comments and suggestions. Below is the link to the
> > modified slide.
> > https://drupal.star.bnl.gov/STAR/system/files/CPOD_2022_slides_v2.pdf
> > > > s2: Last bullet, please also mention detector upgrades
> > I have mentioned that in the next slide (s3), where I am showing the
> > STAR detectors and PID.
> > > > Do you know why the phi-meson has a significantly different trend at
> > > > low pT, compared to others?
> > This is what we observed. We may need to look at other energies to
> > understand this trend.
> >
> > Regards,
> > Prabhupada
> > On 2022-11-20 17:45, subhash via Star-fcv-l wrote:
> > > Dear Prabhupada,
> > >
> > > Nice slides. I have a few suggestions for your consideration:
> > >
> > > Check slide numbers. They are not consistent, sometimes missing.
> > >
> > > s2: Last bullet, please also mention detector upgrades
> > >
> > > s4: Check the X-axis level on top right hidden behind the text box.
> > >
> > > s5: Mention detector name for resolution figure. Would be good if you
> > > can enlarge the figure.
> > >
> > > s5,7 ...:  mention BES-II inside figures, rapidity range etc to be
> > > consistent with other figures.
> > >
> > > v_3/v_3^{3/2} ratio:
> > > shows weak pT dependence above pT > 1.0 GeV/c. --> shows non-trivial
> > > pT dependence.
> > >
> > > Do you know why the phi-meson has a significantly different trend at
> > > low pT, compared to others?
> > >
> > > Thanks and regards,
> > > Subhahs
> > >
> > >
> > > On 2022-11-18 04:12 PM, webmaster--- via Star-fcv-l 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/61707
> > > >
> > > > Deadline: 2022-11-28
> > > > ---
> > > > If you have any problems with the review process, please contact
> > > > webmaster AT www.star.bnl.gov
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