sPHENIX discussion of physics

[Anthony Frawley <afrawley AT fsu.edu>]

Hello Xuan,

Sorry I missed your talk. I had an unavoidable conflict with the meeting this week.

I looked at a plot of reconstructed eta vs reconstructed pT for K-shorts from Pythia events, see the attached. I do not see any drop in yield near a reconstructed eta of 0 for the Ks case.

The Ks decay has very different kinematics from the D0 or jets of course, but still, this suggests to me that what you see is not due to an issue with tracking efficiency near eta = 0.

Best regards

Tony

---

From: sPHENIX-HF-jets-l <sphenix-hf-jets-l-bounces AT lists.bnl.gov> on behalf of xuanlipx via sPHENIX-HF-jets-l <sphenix-hf-jets-l AT lists.bnl.gov>
Sent: Friday, February 24, 2023 7:05 PM
To: Cameron Thomas Dean <cameron.dean AT cern.ch>
Cc: sphenix-physics-l AT lists.bnl.gov <sphenix-physics-l AT lists.bnl.gov>; Huang, Jin via sPHENIX-HF-jets-l <sphenix-hf-jets-l AT lists.bnl.gov>; Marzia Rosati via sPHENIX-upsilons-l <sphenix-upsilons-l AT lists.bnl.gov>
Subject: Re: [Sphenix-hf-jets-l] Next quarkonia and heavy flavor meeting

 

Dear All,
      Following today's discussions, I checked the kinematic coverage of
the D0 and jet at truth and reconstruction level in the D0-jet p+p
simulation. There are no efficiency drop at the truth level. But we see
clear acceptance drop at eta=0 for both reconstructed D0s and jets.
Please see the distributions in the attachment. I applied a mass cut at
2 GeV/c^2 on the jet reconstruction. I will check the distributions
after removing this cut.
      Further suggestions and feedback are very welcome!
      Thanks.
                                                         Xuan



On 2023-02-22 21:30, Cameron Thomas Dean via sPHENIX-HF-jets-l wrote:
> Dear quarkonia and heavy flavor enthusiasts,
>
> We will have our next joint Heavy Flavor/Quarkonium TG meeting on
> Friday February 24th at 3pm ET.
>
> Currently on the agenda at https://urldefense.com/v3/__https://indico.bnl.gov/event/18524/__;!!PhOWcWs!zA2PLn6Oys5SbsvEKZ6p4wPXef_pP_A7YJwnNvkJt5ezjCuMCF6M8txGRQ5wz4oyaQuxZ6aqELntBh5pF8aOSmXh5OoDGLtIxg$  [1] we
> have:
>
> •      Introduction - Conveners
>
> •      K-shorts during STAR commissioning - Zhaozhong Shi
>
> •      D0-jet update - Xuan Li
>
> The zoom link is
> https://urldefense.com/v3/__https://bnl.zoomgov.com/j/1613938007?pwd=QjYzUnpYQ2xNZWZLSy9qd3Z4dFpzZz09__;!!PhOWcWs!zA2PLn6Oys5SbsvEKZ6p4wPXef_pP_A7YJwnNvkJt5ezjCuMCF6M8txGRQ5wz4oyaQuxZ6aqELntBh5pF8aOSmXh5OpC14n8VQ$
> [2]
>
> We look forward to talking to you on Friday!
>
> Marzia, Cameron, Jin, and Tony
>
> Links:
> ------
> [1] https://urldefense.com/v3/__https://indico.bnl.gov/event/18524/__;!!PhOWcWs!zA2PLn6Oys5SbsvEKZ6p4wPXef_pP_A7YJwnNvkJt5ezjCuMCF6M8txGRQ5wz4oyaQuxZ6aqELntBh5pF8aOSmXh5OoDGLtIxg$
> [2]
> https://urldefense.com/v3/__https://bnl.zoomgov.com/j/1613938007?pwd=QjYzUnpYQ2xNZWZLSy9qd3Z4dFpzZz09__;!!P4SdNyxKAPE!FKhecrnCRWcn-faLZmSK82iAWtyPIzl_OfU8u97eb7Ylt_iXoOIZuNqJN8cV24AZgWfo6HBb4_sQzsuf4A3da1FeJi2f74mgSmGgPg$
> _______________________________________________
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> https://urldefense.com/v3/__https://lists.bnl.gov/mailman/listinfo/sphenix-hf-jets-l__;!!PhOWcWs!zA2PLn6Oys5SbsvEKZ6p4wPXef_pP_A7YJwnNvkJt5ezjCuMCF6M8txGRQ5wz4oyaQuxZ6aqELntBh5pF8aOSmXh5OruhHwQ9g$

--
Xuan Li
A109, Bldg. 1, TA-53
Physics Division, MS H846
Los Alamos National Laboratory

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