sPHENIX discussion of physics

[xuanlipx <xuanlipx AT rcf.rhic.bnl.gov>]

Hi Tony,
   Thanks a lot for sharing the nice Ks studies. By comparing the 
inclusive D (shared by Cameron), inclusive Ks (your slides) and the 
D0-jet simulation studies, I agree the drop at eta around 0 should not 
be caused by the track inefficiency. I'm looking into the cut selections 
for the D0 and jet reconstruction and will report what I will find.
   Thanks.
                                                               Xuan

On 2023-02-26 20:51, Anthony Frawley wrote:
> 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]  [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]
> > [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$
> [1]
> > [2]
> https://urldefense.com/v3/__https://bnl.zoomgov.com/j/1613938007?pwd=QjYzUnpYQ2xNZWZLSy9qd3Z4dFpzZz09__;!!P4SdNyxKAPE!FKhecrnCRWcn-faLZmSK82iAWtyPIzl_OfU8u97eb7Ylt_iXoOIZuNqJN8cV24AZgWfo6HBb4_sQzsuf4A3da1FeJi2f74mgSmGgPg$
> [3]
> > _______________________________________________
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> [4]
>
> --
> Xuan Li
> A109, Bldg. 1, TA-53
> Physics Division, MS H846
> Los Alamos National Laboratory
>
> 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__;!!PhOWcWs!zA2PLn6Oys5SbsvEKZ6p4wPXef_pP_A7YJwnNvkJt5ezjCuMCF6M8txGRQ5wz4oyaQuxZ6aqELntBh5pF8aOSmXh5OpC14n8VQ$
> [3] 
> https://urldefense.com/v3/__https://bnl.zoomgov.com/j/1613938007?pwd=QjYzUnpYQ2xNZWZLSy9qd3Z4dFpzZz09__;!!P4SdNyxKAPE!FKhecrnCRWcn-faLZmSK82iAWtyPIzl_OfU8u97eb7Ylt_iXoOIZuNqJN8cV24AZgWfo6HBb4_sQzsuf4A3da1FeJi2f74mgSmGgPg$
> [4] 
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--
Xuan Li
A109, Bldg. 1, TA-53
Physics Division, MS H846
Los Alamos National Laboratory