STAR Correlations and Fluctuations PWG

[Nu Xu <nxu AT lbl.gov>]

Dear Sneha,

Thanks for the updated presentation. I do have trouble with some claims shown 
in the present slides:

1) The term Levy Walk mentioned in slides 6, 13, 15, and 17.
We throw the term to audiences without explanations, it is very confusion. 
For this talk if the concept is needed, then provide the physics meaning. It 
it is not needed for this talk, take them all out of the presentation. 

2) slide 14: (i) What does it mean by “Levy-scaled R”? (ii) right two plots: 
are these the chi^2/per degree of freedom? If it is, please note them so, for 
example, chi^2/pdf.
If I understand, there are many more parameters in the so-called Levy-fit, 
including epsilon_o, epsilon_s, epsilon_l? 

A fit with many more parameters, in this case is the Levy-fit, can we really 
claim “… more accurate shape and size” shown on slide 5?

Best regards,
Nu 

> On Nov 1, 2024, at 3:24 AM, Bhosale Sneha <bhosales AT staff.elte.hu> wrote:
> 
> Dear Nu, 
> 
> I wanted to follow up on my response to your helpful feedback on my 
> presentation. I have incorporated the suggested changes and provided 
> explanations where needed, including adjustments on slides 10, 11, 14, and 
> 15, along with the reference addition. My responses to your suggestions can 
> be found in below email. 
> 
> The updated version is now available here for your review: 
> https://drupal.star.bnl.gov/STAR/node/69661
> 
> Thank you once again for your valuable insights, and I look forward to any 
> further suggestions you may have.
> 
> Best regards,
> Sneha
> 
> 
> 
> Get Outlook for AndroidFrom: star-cf-l-request AT lists.bnl.gov 
> <star-cf-l-request AT lists.bnl.gov> on behalf of Bhosale Sneha 
> <bhosales AT staff.elte.hu>
> Sent: Wednesday, October 30, 2024 4:58:25 PM
> To: STAR Correlations and Fluctuations PWG <star-cf-l AT lists.bnl.gov>
> Cc: Nu Xu <nxu AT lbl.gov>
> Subject: Re: [[Star-cf-l] ] WPCF 2024 talk
>  Dear Nu,
> Thank you so much for he feedback following is my response;
>     • Slide 11:  I incorporated your suggestions, and have only one nozero 
> digit in all of the uncertainties, and rounded the parameter values 
> accordingly.
>     • Slide 11: Thank you for pointing it out, it surely needs an 
> explanation. I added the explanation of these parameters to slide 10 where 
> they are discussed in last bullet point; let me also mention here that this 
> essentially handles all residual, non-femtoscopic background, coming from 
> energy and momentum conservation, resonance decays, bulk flow phenomena, 
> minijets.
>     • Slide 14: I agree. I now include the chi^2 difference and the p-value 
> (confidence level) for both fits. The reference has also been added for 
> published data.
>     • Slide 15: Agree, it does need a bit explanation. Now I added 3 bullet 
> points as an explanation. 
> I have incorporated your suggestion in version 2. Please have a look.
> https://drupal.star.bnl.gov/STAR/node/69661
> Thank you.
> Best regards,
> Sneha
> 
> From: star-cf-l-request AT lists.bnl.gov <star-cf-l-request AT lists.bnl.gov> on 
> behalf of Nu Xu <nxu AT lbl.gov>
> Sent: Wednesday, October 30, 2024 12:17 AM
> To: STAR Correlations and Fluctuations PWG <star-cf-l AT lists.bnl.gov>
> Cc: Nu Xu <nxu AT lbl.gov>
> Subject: Re: [[Star-cf-l] ] WPCF 2024 talk
>  Hi Sneha,
> 
> Thank you for the draft for WPCF2025. I have the following suggestions for 
> your consideration:
> 1) slide 11 - middle plot: those numbers listed there are too precise, 
> perhaps meaningless. For example, lambda could be 0.99+-0.05, R_out could 
> be 6.7+-0.2 fm and so on;
> 2) slide 11: what are those epsilons? Why do we need them? Any physics 
> meanings of these parameters?
> 
> 3)  slide 14 - last three bullets: instead of these claims, can we simply 
> list the fitting results of chi^2/pdf from both alpha=2 and free alpha 
> fits? For the alpha =2 data, a reference should be provided.
> 
> 4) slide 15: what is "Levy walk”? One should explain it in the talk, not 
> just point to another talk in my view;
> 
> That is all for now. 
> Best regards,
> 
> Nu
> 
> 
> > On Oct 29, 2024, at 5:26 AM, Bhosale Sneha <bhosales AT staff.elte.hu> wrote:
> > 
> > Dear All,
> > I would like to let you know that the WPCF conference agenda has been 
> > released, and my talk is scheduled for the 5th of November 2024, a week 
> > from now. I would greatly appreciate if you could review my contribution 
> > before the 4th of November. Your feedback and suggestions would be 
> > invaluable in improving the presentation.
> > 
> > https://drupal.star.bnl.gov/STAR/node/69661
> > 
> > Thank you in advance for your time and support.
> > 
> > Best regards,
> > SnehaFrom: star-cf-l-request AT lists.bnl.gov 
> > <star-cf-l-request AT lists.bnl.gov> on behalf of Bhosale Sneha 
> > <bhosales AT staff.elte.hu>
> > Sent: Wednesday, October 23, 2024 4:51 PM
> > To: STAR Correlations and Fluctuations PWG <star-cf-l AT lists.bnl.gov> 
> > <star-cf-l AT lists.bnl.gov>
> > Subject: [[Star-cf-l] ] WPCF 2024 talk
> >  Dear All,
> > Please have a look at my contribution for WPCF2024 talk and let me know 
> > your views.
> > 
> > https://drupal.star.bnl.gov/STAR/node/69661
> > 
> > Thank you very much for considering my request.
> > 
> > Best regards,
> > Sneha