STAR Correlations and Fluctuations PWG

[Mate Csanad <csanad AT bnl.gov>]

... sorry, the plot was wrongly labeled, let me send a corrected one...

Mate

2023. 10. 31. 9:49 keltezéssel, Mate Csanad via Star-cf-l írta:
> Dear ShinIchi,
>
> For this important point, let me send a plot (attached, sorry for the low 
> quality), where a 3D angle averaged Gaussian, a 1D Gaussian and a 1D Lévy are 
> compared. It is very important that while of course a 3D Gaussian is NOT 
> Gaussian when converted to 1D, but it is very close to it (see a comparision for 
> Rs=4 fm, Rs = 6 fm, Rl = 8 fm, so a very much non-spherical source). A 1D Lévy 
> is much further, and the fact that this fits the data in a statistically 
> acceptable manner really means that it is not the non-sphericality that causes 
> the non-Gaussian nature in the 1D measurement. The experimental statistical 
> uncertainties are much smaller than the difference between 1D Lévy and 3D 
> averaged Gaussian.
>
> Note also that hopefully the 3D measurements are underway (presented at the 
> Collab meeting, and hopefully updates will be shown soon); and there was a 
> similar result in PHENIX, shown in proceedings:
> https://arxiv.org/abs/1809.09392
> where the 3D analysis matched the 1D in terms of alpha; we hope to be able to 
> finalize and publish the 3D and the 1D together in STAR next year.
>
> Best regards,
> Mate
>
> 2023. 10. 31. 8:33 keltezéssel, EsumiShinIchi via Star-cf-l írta:
> > Dear Daniel
> > Thank you very much for the very nice presentation. I here send you some minor
> > comments, that I find your instruction in your earlier pages are quite nice, 
> > especially
> > how this alpha parameter acts as non-gaussian source shape etc in p5. While I 
> > also
> > think it would be very good, if you could tell what would be the merit of this 
> > 1D Levy
> > fitting compared to the usual 3D gaussian source analysis, if you can at least 
> > say
> > this non-gaussian shape is not just coming from the 3D to 1D 
> > conversion/averaging,
> > that would have different source sizes depending on the 3 directions. 
> > Therefore you
> > might like to go to the 3D-Levy as your next step, though… Thanks again.
> > Best regards, ShinIchi
> >
> > > 2023/10/31 16:04、Kincses Dániel via Star-cf-l <star-cf-l AT lists.bnl.gov 
> > > <mailto:star-cf-l AT lists.bnl.gov>>のメール:
> > >
> > > Dear Conveners,
> > >
> > > My talk is currently scheduled for the first day of the conference (November 
> > > 6). I would appreciate any comments or suggestions!
> > >
> > > Thanks,
> > > Daniel
> > > --------------------------------------------------------------------------------
> > > *Feladó:*Star-cf-l <star-cf-l-bounces AT lists.bnl.gov 
> > > <mailto:star-cf-l-bounces AT lists.bnl.gov>>, meghatalmazó: webmaster--- via 
> > > Star-cf-l <star-cf-l AT lists.bnl.gov <mailto:star-cf-l AT lists.bnl.gov>>
> > > *Elküldve:*2023. október 26., csütörtök 10:47
> > > *Címzett:*star-cf-l AT lists.bnl.gov 
> > > <mailto:star-cf-l AT lists.bnl.gov><star-cf-l AT lists.bnl.gov 
> > > <mailto:star-cf-l AT lists.bnl.gov>>
> > > *Másolatot kap:*webmaster AT star.bnl.gov 
> > > <mailto:webmaster AT star.bnl.gov><webmaster AT star.bnl.gov 
> > > <mailto:webmaster AT star.bnl.gov>>
> > > *Tárgy:*[Star-cf-l] STAR presentation by Daniel Kincses for WPCF 2023 
> > > submitted for review
> > > Dearstar-cf-l AT lists.bnl.gov <mailto:star-cf-l AT lists.bnl.gov>members,
> > >
> > > Daniel Kincses (kincses AT ttk.elte.hu <mailto:kincses AT ttk.elte.hu>) has 
> > > submitted a material for a review,
> > > please have a look:
> > > https://drupal.star.bnl.gov/STAR/node/65727 
> > > <https://drupal.star.bnl.gov/STAR/node/65727>
> > >
> > > Deadline: 2023-11-06
> > > ---
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