STAR HardProbes PWG

["Evdokimov, Olga" <evdolga AT uic.edu>]

  Dear Rongrong,

 

Your understanding is correct. These are statistical fluctuations, and they contribute to SOME dPhi bins, wherever they happened to happen.  This is illustrated in the signal and UE overlays provided by Gabe and can be seen to some degree in other pt /phi bins as well.

 

We use absolute eta range of 0.5, which translates into total deta range of +/-1. This allows to separate the jet peak at |deta|<0.5 form UE determined in 0.5<|deta|<1 range.

 

Hope this clarifies the situation.

 

Best regards,

Olga

 

From: Star-hp-l <star-hp-l-bounces AT lists.bnl.gov> On Behalf Of Ma, Rongrong via Star-hp-l
Sent: Wednesday, March 22, 2023 10:04 AM
To: Dale-Gau, Gabe <gdaleg2 AT uic.edu>; STAR HardProbes PWG <star-hp-l AT lists.bnl.gov>
Subject: Re: [Star-hp-l] [Star-talks-l] Updated Slides for Hard Probes 2023 (Gabe)

 

Hello Gabe

 

Thanks for including those backup slides. 

 

If I understand correctly, what you mean is that the UE distribution close to the edge (|deta| ~ 1) has large error bars, which contributes to the large errors seen in dphi ~ 0. Is this correct? If so, why don't they contribute to other dphi bins? Also, since your jet-hadron range is 0.5, I would naively expect you only use UE within |deta| < 0.5. Do I miss anything?

 

Best

Rongrong

On Mar 21, 2023, at 4:21 PM, Gabe Dale-Gau via Star-talks-l <star-talks-l AT lists.bnl.gov> wrote:

 

Conveners,

 

Thank you for all of your comments and input. 

I have updated my Star-Talks submission here:

https://drupal.star.bnl.gov/STAR/presentations/Hard-Probes-2023/Baryon-Meson-Ratios-AuAu-and-pp-collisions-sqrtsNN-200-GeV

 

I have implemented many changes in this version to address all of the comments I received from Nihar and Barbara, as well as general rephrasing throughout to simplify text on slides.

 

Rongrong, the first three slides in the backup section are included to address your question about the origin of two strange points in the Au+Au correlated jet peak signal.

 

I will create a separate drupal page with figures included as individual files shortly.

 

Let me know if you have further questions or comments.

 

Many thanks,

 

Gabe

_______________________________________________
Star-talks-l mailing list
Star-talks-l AT lists.bnl.gov
https://lists.bnl.gov/mailman/listinfo/star-talks-l