STAR Flow, Chirality and Vorticity PWG

[Xionghong He <hexh AT impcas.ac.cn>]

Dear ShinIchi,


The points in each panel is from a histogram generated by (proton 
dN/dphi)^n function.

I draw the points because I want show that the fit functions can fit the 
generated dN/dphi distributions.

For the fluctuations, it is due to the entries I genereted for each 
panel. If I increase the entries,

all distributions will be smooth, as shown in the updated slides.


Thank you and best regards,

Xionghong


在 2021/3/11 10:56, ShinIchi Esumi via Star-fcv-l 写道:
> Dear Xionghong
> Sorry for sending several times, what are the data points in the top 3 panels
> of the page 15? If you just manipulate/apply "()^n" to the fitted function on 
> the proton
> data, you do not need data points in each panel, since you just need the 
> fitted function.
> However I see the relative point-to-point fluctuation of data seems to be 
> reduced
> going from left panel (n=2) to the right panel (n=4), which sounds counter 
> intuitive,
> if you really manipulate "()^n" to the data points, or?
> Best regards, ShinIchi
>
> > On Mar 11, 2021, at 11:19, ShinIchi Esumi <esumi.shinichi.gn AT u.tsukuba.ac.jp> 
> > wrote:
> >
> > Dear Xionghong
> > Thanks you for the quick answer. I understand it’s getting messy, but you
> > do the full scaling on the right panel, so I do still prefer to show the raw 
> > data
> > without scaling on the left panel (as the same color points do not overlap),
> > but this is, of course, up to you.
> >
> > Thanks again, now it’s clear what you did for the coalescence test on p15,
> > the data points in all 3 panels are all proton data, right?  Could you please
> > add (as I would also like to see) the raw proton data (so 4 top panels in 
> > total)
> > as well as one additional line for A=1 in the lower panels, although it’s just
> > on the proton data point by definition. What do you think about changing
> > color of the cross point to blue in the lower panels for 3He to be compared
> > with the blue line.
> > Best regards, ShinIchi
> >
> > > On Mar 11, 2021, at 10:47, Xionghong He via Star-fcv-l 
> > > <star-fcv-l AT lists.bnl.gov> wrote:
> > >
> > > Dear ShinIchi,
> > >
> > >
> > > Thank you very much for your comments.
> > >
> > > The updated slides are at the same link
> > >
> > > https://drupal.star.bnl.gov/STAR/node/54117.
> > >
> > > Please check the replies below.
> > >
> > > > p12 left, especially since you do a full scaling on the right panel, I would
> > > > like to see it without any scaling factor in vertical axis (at least for the 
> > > > left panel),
> > > > where the same color does not overlap even without scaling, right?
> > > A: If I draw different rapidity distributions in one plot and do not scale 
> > > the vertical axis,
> > >
> > > the plot looks messy, as shown in 
> > > https://drupal.star.bnl.gov/STAR/system/files/v1pt.pdf.
> > >
> > > > p15 top 3 panels. What are they (p, d,,,) at what pT? What are the difference
> > > > between 3 panels? The vertical axis tells the power n=2,3,4 for the 
> > > > (formula)^n,
> > > > but the legend Inside the panel are all same for 3 panels. Probably, you 
> > > > determine
> > > > the p1 and p2 with proton, then you are applying these parameters to the 
> > > > deuteron
> > > > and triton data with assumed formula? You need more explanations in the slide,
> > > > especially for the lines in the lower two panels etc. For this purpose, I 
> > > > would
> > > > choose to use “blue color” for plotting the 3He data...
> > > A: For protons, I got the dN/dphi disribution by the first formula in p14, 
> > > where the v1 and the v2 were
> > >
> > > the value of data in each rapidity bin. Following the secend formula in p14, 
> > > the n=2,3,4 power of these
> > >
> > > proton dN/dphi distributions were the three top panels in p15.
> > >
> > > Then I used "1+2p1cos(phi)+2p2cos(2phi)" to fit them and extracted p1 and p2 
> > > in each
> > >
> > > rapidity bin, and the lines in the two bottom plots were these extracted p1 
> > > and p2.
> > >
> > > I updated the slide 15 to make it clear.
> > >
> > >
> > > Thank you and best regards,
> > >
> > > Xionghong
> > >
> > >
> > > > > On Mar 8, 2021, at 17:49, webmaster--- via Star-fcv-l 
> > > > > <star-fcv-l AT lists.bnl.gov> wrote:
> > > > >
> > > > > Dear star-fcv-l AT lists.bnl.gov members,
> > > > >
> > > > > Xionghong He (hexh AT impcas.ac.cn) has submitted a material for a review,
> > > > > please have a look:
> > > > > https://drupal.star.bnl.gov/STAR/node/54117
> > > > >
> > > > > ---
> > > > > If you have any problems with the review process, please contact
> > > > > webmaster AT www.star.bnl.gov
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