STAR Flow, Chirality and Vorticity PWG

[Jie Zhao <jiezhao1119 AT hotmail.com>]

Dear ShinIchi,

thanks for your suggestions, certainly we can do it, but if you remember as we discussed during the previous analysis meting, 

the fit of the blue curve (BG) is largely depends on the normalization, the plot here are also already subtracted the combinatorial background using likesign distribution.

the v2 of this blue curve do provides useful information.

for the fit on the rho (pink curve), if we have better control on the rho mass, width, and the background, we will also report the rho v2.

but as you know, those informations on rho have very large uncertainty, and the background on left and right are very difference, it’s thus very difficult to get a reasonable v2 of rho, and this even true for f2.

the advantage of f0 is that the width is smaller compare to rho and f2, and the background is smooth dominated by the left rho and right f0 peak.

Thanks and Best regards!

Jie

On May 12, 2021, at 12:34 PM, ShinIchi Esumi via Star-fcv-l <star-fcv-l AT lists.bnl.gov> wrote:

Dear Jie

What I meant about combinatorial v2 in your analysis, is about 

the v2 of pink curve (rho) and v2 of blue curve (BG?) and even for 

v2 of purple curve (f2) to be compared with your signal v2 of green 

curve (f0) signal, that can be extracted from your 5 different fitting 

panels (for 5 phi bins) in page 11, that you just need to calculate 

the right quantity using the fitted parameters for the exactly same 

centrality and pT selections. Or you might need to calculate v2 of 

all other contributions (sum of all pink+blue+purple). 

Best regards, ShinIchi

On May 12, 2021, at 13:44, Jie Zhao <jiezhao1119 AT hotmail.com> wrote:

Dear ShinIchi and All,

please find my slides for today’s meeting below, thanks!

https://www.star.bnl.gov/protected/lfsupc/jiezhao/SQM2021/slides/SQM2021_JieZhao.pdf

Thanks and Best regards!

Jie

On May 10, 2021, at 2:37 PM, Jie Zhao <jiezhao1119 AT hotmail.com> wrote:

Dear ShinIchi and All,

please also put me on the agenda, i would like to show few slides about the updates on the f0 v2 analysis for SQM, thanks!

Thanks and Best regards!

Jie

On May 10, 2021, at 11:58 AM, Prithwish Tribedy via Star-fcv-l <star-fcv-l AT lists.bnl.gov> wrote:

Hi ShinIchi,
  Can you please also put me on the agenda for a short update on   collectivity in photonuclear processes.
Best,
Prithwish


On 2021-05-10 06:38, ShinIchi Esumi via Star-fcv-l wrote:

Dear FCV PWG colleagues
We will have our usual weekly FCV PWG meeting on this Wednesday 12/May/2021
9:30AM in BNL (NY time zone) at our usual time and place. So if you
have anything to
present, please let us know and please post your slide by Tuesday. The
zoom room link,
ID and password are in our usual drupal agenda page below. Please also
keep in mind
that all the preliminary plots should have already been there in the
summary area below,
if it’s not there, please make one and remind us.
Best regards, Jiangyong, Prithwish and ShinIchi
Meeting agenda page with zoom link :
https://drupal.star.bnl.gov/STAR/blog/jjiastar/bulkcorr
Preliminary page :
https://drupal.star.bnl.gov/STAR/pwg/bulk-correlations/bulkcorr-preliminary-summary
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