STAR Flow, Chirality and Vorticity PWG

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

Dear ShinIchi,

> > Please find the comparison attached, Niseem’s results are using 
> > 3-subevents Chunjiang’s results A is 3-subevents and B is 1-subevents

Dear Niseem (and Chunjian)
I heard that you (Niseem) have made the change on your cuts (in order to 
make it exactly same as Chunjiang’s cuts) for all your plots including 
other beam energy points. Is that true?

> > Yes, all results are reproduced with the same cuts.


However I still see them qualitatively different between your plot on 
P11 lower-right panel AuAu 200GeV data and Chunjian’s plot on P9 left 
panel in his slide. We would just like to see them overlaid in the same 
panel with the same x-y axis definition, as they could have some 
differences depending on the choice of the normalization or some other 
different cuts/selections.

> > Please note that in Niseem’s slides only 3-subevents are used, however 
> > in Chunjian’s plot on P9 1-subevent being used. We update the plot to 
> > compare 1- and 3-subevents between Niseem and Chunjian.



It is good to see them consistent after making the same 
choice/selection, however it is also important to understand and 
demonstrate how different they are with these different cuts as well, 
which is just like showing the delta_eta dependence of your results.

> > The delta eta dependence is a separate question. But right now, we 
> > choose to use the same delta eta cut. As you can see with the same 
> > delta eta cut the difference is too small and covered by the 
> > systematics. The analysis is not based on the same code and exactly 
> > the same procedure



Thanks,
Niseem


On 2020-10-20 12:33, ShinIchi Esumi via Star-fcv-l wrote:
> Dear Niseem (and Chunjian)
> I heard that you (Niseem) have made the change on your cuts (in order 
> to make
> it exactly same as Chunjiang’s cuts) for all your plots including other 
> beam
> energy points. Is that true? However I still see them qualitatively
> different between
> your plot on P11 lower-right panel AuAu 200GeV data and Chunjian’s plot 
> on P9
> left panel in his slide. We would just like to see them overlaid in
> the same panel with
> the same x-y axis definition, as they could have some differences 
> depending on
> the choice of the normalization or some other different
> cuts/selections. It is good to
> see them consistent after making the same choice/selection, however it 
> is also
> important to understand and demonstrate how different they are with
> these different
> cuts as well, which is just like showing the delta_eta dependence of
> your results.
> I do think they are needed to make both your talks approved.
> Best regards, ShinIchi
>
> > On Oct 21, 2020, at 1:33, ShinIchi Esumi via Star-fcv-l 
> > <star-fcv-l AT lists.bnl.gov> wrote:
> >
> > I’m asking you to show both comparisons with and without adjusting the 
> > cuts.
> > The comparison without adjusting cuts means the direct comparison 
> > between
> > the two preliminary results (with different cuts), which will be shown 
> > in the DNP.
> > The comparison with the same cut has already been shown in the PWG.
> >
> > > On Oct 20, 2020, at 18:42, Niseem via Star-fcv-l 
> > > <star-fcv-l AT lists.bnl.gov> wrote:
> > >
> > > Hi ShinIchi,
> > >
> > > I and Chunjiang used the same method and cuts to get the same 
> > > results.
> > >
> > > Please find the updated slides at the same link.
> > >
> > > https://drupal.star.bnl.gov/STAR/presentations/dnp-2020/beam-energy-dependence-flow-correlations-heavy-ion-collisions
> > >
> > >
> > >
> > > The comparisons between my results and Chunjiang's results are in the 
> > > backup slides.
> > >
> > >
> > >
> > > Thanks,
> > > Niseem
> > >
> > > On 10/17/20 11:04 PM, ShinIchi Esumi via Star-fcv-l wrote:
> > > > Dear Niseem (and Chunjiang)
> > > >
> > > > I would sing-off your nice talk with some comments.
> > > >
> > > > Please have a comparison plot in your backup between you and 
> > > > Chunjiang with the
> > > > same data set 200GeV AuAu, one with your own choice of analysis cut 
> > > > (especially for
> > > > delta_eta and sub-event cuts on covariance and two variances) as 
> > > > well as another one
> > > > with a common set of eta_gap and sub-event cuts for both of the 
> > > > analysis.
> > > >
> > > > After you prepare the preliminary summary page with all your 
> > > > preliminary plots to be linked
> > > > at special drupal area for the preliminary location with necessary 
> > > > information at :
> > > > https://drupal.star.bnl.gov/STAR/pwg/bulk-correlations/bulkcorr-preliminary-summary
> > > > then I would approve your talk.
> > > >
> > > > Best regards, ShinIchi
> > > >
> > > > > On Oct 15, 2020, at 1:15, webmaster--- via Star-fcv-l 
> > > > > <star-fcv-l AT lists.bnl.gov> wrote:
> > > > >
> > > > > Dear star-fcv-l AT lists.bnl.gov members,
> > > > >
> > > > > Niseem Magdy Abdelwahab Abdelrahman (niseemmagdy AT yahoo.com) has 
> > > > > submitted a
> > > > > material for a review, please have a look:
> > > > > https://drupal.star.bnl.gov/STAR/node/52367
> > > > >
> > > > > ---
> > > > > If you have any problems with the review process, please contact
> > > > > webmaster AT www.star.bnl.gov
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> > > >
> > > >
> > > >
> > > > _______________________________________________
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> > > >
> > > > Star-fcv-l AT lists.bnl.gov
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> > > --
> > >
> > > ----------------------------------------
> > > Niseem Magdy Abdelrahman, Ph.D.,
> > > Postdoctoral Research Associate
> > > Department of Physics
> > > University of Illinois at Chicago
> > > 2236 Science and Engineering South
> > > 845 West Taylor Street, Chicago, Illinois 60607
> > > ----------------------------------------
> > >
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