STAR Correlations and Fluctuations PWG

[Sooraj Radhakrishnan <skradhakrishnan AT lbl.gov>]

Hi Bijun,

   Thanks for these well prepared slides. I have only a few comments. Please find below

S4: first bullet: including only 

S4: to includes --> to include 

S10: CARB --> CRAB

S10: with experimental data

S10: parameters for Ks0

S14: R_G of kaons don't follow

S15: R_G of kaons 

Best,

Sooraj

On Wed, May 29, 2024 at 12:04 AM 樊碧君 via Star-cf-l <star-cf-l AT lists.bnl.gov> wrote:

Dear Hanna,

Thank you for your comments and suggestions. I have implemented them and the new version can be found here: https://drupal.star.bnl.gov/STAR/presentations/SQM-2024/Measurements-Kaon-Femtoscopy-AuAu-Collisions-sNN-30-45-GeV-STAR-Experiment

Thanks and regards,

Bijun

 

 

------------------ Original ------------------

From:  "Hanna Zbroszczyk via Star-cf-l"<star-cf-l AT lists.bnl.gov>;

Date:  Mon, May 27, 2024 09:34 PM

To:  "star-cf-l"<star-cf-l AT lists.bnl.gov>;

Cc:  "Hanna Paulina Zbroszczyk"<hanna.zbroszczyk AT pw.edu.pl>;

Subject:  Re: [Star-cf-l] STAR presentation by Bijun Fan for SQM-2024 submitted for review

 

Dear Bijun,

Thank you for posting your slides on time.

I have following comments regarding your nice slides (I comment on version 4 of your presentations).

Slide 2:

m_T- scaling. -> m_T - scaling (add spaces)

Slide 3:

Please define k* and r*.

Top-right figure shows the correlation function as a function of q_{inv}, since you use k* on your slide, I suggest to change q_{inv} to k*.

However, you also need to define q_{inv} as your results are shown as a function of q_{inv}, so you need to mention PRF and LCMS reference frames (define them) and show the relation that if m_1 = m_2 then q_{inv} = 2k*.

Slide 5:

Define t, L from  m^2 formula.

Slide 10:

Please add more details about UrQMD and CRAB, mention model configurations to avoid confusion  

Slide 11:

Mention how you subtracted pure-QS correlation functions (discuss the FSI parts)

Slide 12:

Specify what do you mean by Model (version, configuration, etc..)

Kaon -> kaon (three time, 2nd and 3rd bullets)

Slide 13:

Kaon -> kaon

Slide 14:

Kaons-> kaons (twice)

Slide 15:

Kaon -> kaon (5 times)

m_T-scaling -> m_T - scaling (add spaces).

Thanks,

Hanna

Prof. Hanna Zbroszczyk, PhD, DSc, Eng.

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 樊碧君 via Star-cf-l <star-cf-l AT lists.bnl.gov> w dniu 27.05.2024, o godz. 14:35:

Dear Nu,

Thank you for your feedback. I have made the necessary updates. You can find the new version at the following link: https://drupal.star.bnl.gov/STAR/system/files/SQM_Kaon_HBT_v4.pdf

Best regards,

Bijun

 

------------------ Original ------------------

From:  "Nu Xu"<nxu AT lbl.gov>;

Date:  Mon, May 27, 2024 12:06 PM

To:  "樊碧君"<bjfan AT mails.ccnu.edu.cn>;

Cc:  "nxu"<nxu AT lbl.gov>; "綦猷全"<qyq AT mails.ccnu.edu.cn>; "star-cf-l"<star-cf-l AT lists.bnl.gov>; "webmaster"<webmaster AT star.bnl.gov>;

Subject:  Re: [Star-cf-l] STAR presentation by Bijun Fan for SQM-2024 submitted for review

 

Dear Bijun,

Thank you for the updated draft. I sign off.
There is one small correction in slide 15 - "2) R_G of Kaons don’t follow 𝐦𝐓-scaling of pions’, “ ==> “2) R_G of Main does not follow mT-scaling of pion’s”

Best regards,
Nu


> On May 26, 2024, at 7:15 PM, 樊碧君 <bjfan AT mails.ccnu.edu.cn> wrote:
>
> Dear Nu and all,
>
> Thank you for your comment. I Have remove the pion mT dependence of lambda parameter in slide 12, and the new version can be found in the following link: https://drupal.star.bnl.gov/STAR/system/files/SQM_Kaon_HBT_v4_0.pdf
>
> Thanks and regards,
> Bijun
>   ------------------ Original ------------------
> From:  "Nu Xu"<nxu AT lbl.gov>;
> Date:  Sun, May 26, 2024 11:39 AM
> To:  "綦猷全"<qyq AT mails.ccnu.edu.cn>;
> Cc:  "nxu"<nxu AT lbl.gov>; "star-cf-l"<star-cf-l AT lists.bnl.gov>; "樊碧君"<bjfan AT mails.ccnu.edu.cn>; "webmaster"<webmaster AT star.bnl.gov>;
> Subject:  Re: [Star-cf-l] STAR presentation by Bijun Fan for SQM-2024 submitted for review
>  Dear Bijun, Youquan and All,
>
> Due to combined effects of (i) momentum resolution coupled with centrality; (ii) resonance decay contributions; (iii) multi-particle coherent effects, and all of these effects become stronger at the low pt region. So one would expect the lambda parameters become larger at higher pt region. This is what we know in literatures.
>
> Before we understand the mt dependence, I again suggest we remove the pion lambda mt dependence plot in this presentation.
>
> For Youquan, do we have the corresponding analysis from the UrQMD simulations?
> I mean the mt dependence of pion mt dependence from 1D and 3D analysis.
>
> Many thanks,
>
> Nu
>
> > On May 25, 2024, at 11:04 AM, 綦猷全 <qyq AT mails.ccnu.edu.cn> wrote:
> >
> > Dear Nu and Bijun,
> >
> > Please find the results in the attachment.
> >
> > Thanks Best Regards,
> > Youquan
> >  ------------------ Original ------------------
> > From:  "STAR Correlations andFluctuation"<star-cf-l AT lists.bnl.gov>;
> > Date:  Sat, May 25, 2024 08:46 AM
> > To:  "樊碧君"<bjfan AT mails.ccnu.edu.cn>;
> > Cc:  "nxu"<nxu AT lbl.gov>; "STAR Correlations andFluctuation"<star-cf-l AT lists.bnl.gov>; "webmaster"<webmaster AT star.bnl.gov>;
> > Subject:  Re: [Star-cf-l] STAR presentation by Bijun Fan for SQM-2024 submitted for review
> >  Dear Bijun,
> >
> > I do not understand this result.
> > I would ask YouQuan send us of results on 3D and 1D analysis regarding the lambda parameters.
> > In the mean time, I suggest remove lambda parameters from the figure on slide 12.
> >
> > Best regards,
> >
> > Nu
> >
> > > On May 25, 2024, at 3:49 AM, 樊碧君 <bjfan AT mails.ccnu.edu.cn> wrote:
> > >
> > > Dear Nu,
> > > Thank you for your comments and suggestions. Regarding the second point, I have cross-checked with YouQuan's 1D results and observed that the lambda value does increases with lower kT, which is contrary to the findings of the 3D analysis in the same energy range. The published results from HADES also exhibit a similar trend (refer to the figure below).
> > > I have incorporated the other suggestions you provided, and the updated version can be accessed through the following link:
> > > https://drupal.star.bnl.gov/STAR/presentations/SQM-2024/Measurements-Kaon-Femtoscopy-AuAu-Collisions-sNN-30-45-GeV-STAR-Experiment
> > > Thanks and regards,
> > > Bijun
> > >
> > > <2D04F70E AT 0B0A9363.1EC2516600000000.png>
> > >
> > >  ------------------ Original ------------------
> > > From:  "Nu Xu"<nxu AT lbl.gov>;
> > > Date:  Fri, May 24, 2024 11:55 PM
> > > To:  "star-cf-l"<star-cf-l AT lists.bnl.gov>;
> > > Cc:  "nxu"<nxu AT lbl.gov>; "樊碧君"<bjfan AT mails.ccnu.edu.cn>; "webmaster"<webmaster AT star.bnl.gov>;
> > > Subject:  Re: [Star-cf-l] STAR presentation by Bijun Fan for SQM-2024 submitted for review
> > >  Dear Bijun,
> > >
> > > I can download the file, thank you. Here are some comments/suggestions:
> > > 1) slide 5 - left figure: iTPC label at a wrong place;
> > > 2) slide 12 - pion lambda: Is it true that at lower kT, the values of lambda are larger? I thought it is opposite. Please double check?
> > > 3) slide 15 - 2nd bullet: ==> “Within uncertainties, extracted parameters from charged Kaon correlation data are consistent with that from neutral Kaons”;
> > >
> > > Thank you,
> > >
> > > Nu
> > >

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--

Sooraj Radhakrishnan

Research Scientist,

Department of Physics

Kent State University

Kent, OH 44242

Physicist Postdoctoral Affiliate

Nuclear Science Division
Lawrence Berkeley National Lab
MS70R0319, One Cyclotron Road

Berkeley, CA 94720

Ph: 510-495-2473

Email: skradhakrishnan AT lbl.gov