STAR Correlations and Fluctuations PWG

[Hanna Paulina Zbroszczyk <hanna.zbroszczyk AT pw.edu.pl>]

Dear Changfeng,

Please find below my comment to your nice slides:

Slide 1. Add Supported in part by U.S. department of Energy (don’t forget about their logo)

Slide 2 and 3. General commen to the slide 2 and slide 3: instead of writing full sentences try to highlight some important points, e.g., at slide 2: "STAR experiment published individual net-charge, net-proton, net-kaon, as well as net-Lambda, higher order diagonal cumulant measurements”, this can be easily skipped as below you refer to already published papers; the next sentence about why to measure correlations is very obvious, it should be said during your presentation, no need to keep the whole sentence. I would rather read why studies of these correlations help us to understand the QCD phase diagram.

Slide 4: Explain why you study the correlation between net-proton and net-kaon with respect to the net-kaon fluctuations (and not net-proton). Add a comment what is the physical interpretation of your measurement. 

Slide 6: between -3- to 30 cm -> between - 30 cm to 30 cm

Slide 7: it would be good to mention what is the reason you repeat analysis from Run-11 with dataset from Run-18 as already published data looks ok in terms of statistics. 

Slide 8: the same comment as one slide before. The viewer might not understand what is the purpose to repeat this analysis with new data collection.

Slide 9: add the comment about the physical interpretation of these two correlations.

Slide 10: add some comments about physical interpretations. What have we learned having different correlations between delta-p and delta-k?

It would be also to mention somewhere what does it mean the correlation is negative. What can learn from it?

Thanks,

Hanna

Hanna Paulina Zbroszczyk

PhD DSc Eng, Professor WUT

E-mail: hanna.zbroszczyk AT pw.edu.pl

Tel: +48 22 234 5851 (office)

Address:

Warsaw University of Technology

Faculty of Physics

Nuclear Physics Division

Koszykowa 75

Office: 117b (via 115)

00-662 Warsaw, Poland

Wiadomość napisana przez li via Star-cf-l <star-cf-l AT lists.bnl.gov> w dniu 20.07.2021, o godz. 11:04:

Dear Xiaofeng,
Thank you for your suggestion and comments.
I have modified from 1 to 4.
as you methioned 5, and I checked the data,sigma2 proton and sigma2 kaon are different actually.
It seems both of them are so small and y-axis are so big. I have changed the Y axis range to smaller,
Now we can see clearly they are different as expected so I have modfied it and summary.
This is the new slides: https://drupal.star.bnl.gov/STAR/system/files/QPT2021_ChangfengLi_v2.pdf

Thank you,
Best Regards,
Changfeng




在 2021-07-20 10:42，star-cf-l-request AT lists.bnl.gov 写道：

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Today's Topics:
  1. Re: STAR presentation by Changfeng Li for QPT2021 submitted
     for review (Xiaofeng Luo)
  2. Re: CF PWG meeting July 22nd (Thursday) 9:30am (BNL time)
     (=?utf-8?B?Q2h1YW5GdQ==?=)
----------------------------------------------------------------------
Message: 1
Date: Tue, 20 Jul 2021 10:17:52 +0800
From: Xiaofeng Luo <xfluo.star AT hotmail.com>
To: STAR Correlations and Fluctuations PWG <star-cf-l AT lists.bnl.gov>
Subject: Re: [Star-cf-l] STAR presentation by Changfeng Li for QPT2021
submitted for review
Message-ID:
<SYBPR01MB596887C3BC7F0A15C68A850D9DE29 AT SYBPR01MB5968.ausprd01.prod.outlook.com>
Content-Type: text/plain; charset=utf-8; format=flowed
Hi Changfeng,
??? Nice presentation.
??? Please find my comments/suggestions below :
??? 1. Slide 3, FO parameters -> Freeze-out parameters
??? 2. Slide 4, need to write down the mathematical definition of the
off-diagonal cumulants.
??? 3. Slide 5, |eta|<1.4 -> |eta|< 1,? 0.2 GeV/c -> 0.15 GeV/c
??? 4. Slide 6, need to write down the number of events used in the
analysis.
??? 5. Slide 9, I don't understand the claim : "give the same results."
??? ?? ? If numerator are the same, but denominator are different. How
could the results are the same ?
??? ???? Please re-phrase for the corresponding discussion and also in
the summary.
??? With those implemented, I sign off.
Thank you,
Best Regards,
Xiaofeng
On 2021/7/19 11:08, webmaster--- via Star-cf-l wrote:

Dear star-cf-l AT lists.bnl.gov members,
Changfeng Li (houmiuji AT 163.com) has submitted a material for a review, please
have a look:
https://drupal.star.bnl.gov/STAR/node/55650
---
If you have any problems with the review process, please contact
webmaster AT www.star.bnl.gov
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------------------------------
Message: 2
Date: Tue, 20 Jul 2021 10:41:52 +0800
From: "=?utf-8?B?Q2h1YW5GdQ==?=" <fuchuan AT mails.ccnu.edu.cn>
To: "=?utf-8?B?SGFubmEgUGF1bGluYSBaYnJvc3pjenlr?="
<hanna.zbroszczyk AT pw.edu.pl>,  "=?utf-8?B?U3Rhci1jZg==?="
<star-cf-l AT lists.bnl.gov>
Subject: Re: [Star-cf-l] CF PWG meeting July 22nd (Thursday) 9:30am
(BNL time)
Message-ID: <tencent_0DB1C51C4C61443E5005F862 AT qq.com>
Content-Type: text/plain; charset="utf-8"
Dear&nbsp;Hanna and Xiaofeng,
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;I
would like to give a presentation about pp CF in 3 GeV.
If possible, I would like to become the first speaker.
Best regards,
Chuan
&nbsp;
&nbsp;
------------------&nbsp;Original&nbsp;------------------
From: &nbsp;"Star-cf"<star-cf-l AT lists.bnl.gov&gt;;
Date: &nbsp;Mon, Jul 19, 2021 11:25 PM
To: &nbsp;"Star-cf"<star-cf-l AT lists.bnl.gov&gt;;
Subject: &nbsp;[Star-cf-l] CF PWG meeting July 22nd (Thursday) 9:30am (BNL time)
&nbsp;
Dear CF PWG colleagues,
We will have our weekly CF PWG meeting on Thursday, July 22nd, 9:30 AM
(BNL time).
If you would like to contribute, please let us know.
Please try to post your slides at your earliest convenient.
We will connect via Zoom. Please find the connection details under the
meeting webpage.
Thank you,
Best regards,
Hanna and Xiaofeng
https://drupal.star.bnl.gov/STAR/blog/luoxf/correlations-and-fluctuations
https://drupal.star.bnl.gov/STAR/blog/gos/correlations-and-fluctuations-preliminary-plots&nbsp;
Hanna Paulina Zbroszczyk
PhD DSc Eng, Professor WUT
E-mail: hanna.zbroszczyk AT pw.edu.pl
Tel: +48 22 234 5851 (office)
Address:
Warsaw University of Technology
Faculty of Physics
Nuclear Physics Division
Koszykowa 75
Office: 117b (via 115)
00-662 Warsaw, Poland
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