STAR HardProbes PWG

[Nihar Sahoo <nihar AT rcf.rhic.bnl.gov>]

Hello Diptanil,

Thank you for your updates.
In addition to Rongrong's comment, Please find my additional comments 
below.

_Have you done any closure test for Z_jet^D correction procedure?

Slide21:
You have used now DCA < 3 cm, this may include some background tracks. 
Have you done any test with a strict DCA cut like 1, or 2 cm? Just to 
know if there is any effect with lesser background?
A bit concern for your Delta_R and Z results. Just to make sure there is 
no such contribution.

Slide4:
Can you please point to your raw distributions for Z_jet as well? Just 
to see how much the correction is?
Take one pT bin (say 1-10 GeV/c) for three centrality , and compare 
before and after correction.

Slide30:
1-10 GeV/c pT,D bins; central top plot; why systematic uncertainties are 
almost zero for intermediate p_T,jet^D0 bins, for example 8-12 GeV/c? 
Same for other plots.

Slide34:
1-10 GeV/c pT,D bin: R_cp central plot: do you understand why 0-0.2 bin 
has almost zero sys uncertainty?


Best
Nihar


On 2023-08-16 21:52, Diptanil Roy wrote:
> Hi everyone, I have implemented the changes recommended yesterday in
> the PWG meeting. Please find the updated presentation here.
> https://drupal.star.bnl.gov/STAR/system/files/HardProbes_Aug10_Diptanil_v3.pdf
>
> Here are some comments below:
>
> 1. Slide 11: I added the generated level input plots for PYTHIA+FONLL
> distribution weighed by the data. They are shown in black.
> 2. Slides 27-38: I have added the new plots with the updates. Slide 26
> summarises the updates. I have retained the old plots just in case you
> wanted to compare them. For eg: Slide 27 has the jet pT spectra that I
> showed yesterday. Slide 28 has the jet pT spectra after I moved the
> central value to the mean of the prior variation.
> 3. Slides 39-44: I have the plots compared to available theory
> predictions. I have added the prediction for peripheral events spectra
> in D0 pT 1-10 GeV, and all the spectra in D0 pT 4-10 GeV.
>
> Please let me know if you have any questions/comments.
>
> Cheers,
>
> On Tue, Aug 15, 2023 at 10:35 AM Diptanil Roy
> <roydiptanil AT gmail.com> wrote:
>
> > Hi everyone, please find my contribution from today.
> https://drupal.star.bnl.gov/STAR/system/files/HardProbes_Aug10_Diptanil_v2.pdf
> > Thank you for your comments.
> >
> > Cheers,
> >
> > On Tue, Aug 15, 2023 at 7:50 AM Barbara Trzeciak via Star-hp-l
> > <star-hp-l AT lists.bnl.gov> wrote:
> >
> > Thanks Jakub for the quick update.
> > Unfortunately, I won't be able to connect today for your
> > presentation.
> > Will check the discussion from the recording and let you know in
> > case of further questions.
> >
> > Cheers,
> > Barbara
> >
> > On Tue, Aug 15, 2023 at 1:09 PM Ceska, Jakub via Star-hp-l
> > <star-hp-l AT lists.bnl.gov> wrote:
> >
> > Dear Barbara,
> >
> > thank you for your comments. Please find and updated version of the
> > presentation (same link,
> > https://drupal.star.bnl.gov/STAR/blog/ceskajak/HP-PWG-meeting-150823
> > [1]).
> >
> > The pT bin fits (slides 24-29) are the first approach and can
> > definitely be improved. The 0-2 GeV/c bin would need a different
> > background shape, as the exponential does not work here). The plots
> > show a comparison of fits with Leszek's constraints (left) and with
> > larger, arbitrarily chosen constraints (right). Again, relaxing the
> > constraints improves the accuracy of the signal fit.
> >
> > The constrained values used previously and the current values can
> > be found again on slides 22 and 23. The fit does not seem to succeed
> > for any unbound signal width and tends to grow to unexpectedly large
> > values of sigma. The upper constraint of 0.3 was chosen arbitrarily.
> >
> >
> > Best regards,
> > Jakub
> >
> > -------------------------
> >
> > Od: Barbara Trzeciak <barbara.trzeciak AT gmail.com>
> > Odesláno: úterý 15. srpna 2023 11:04
> > Komu: STAR HardProbes PWG <star-hp-l AT lists.bnl.gov>
> > Kopie: Ceska, Jakub <jakub.ceska AT fjfi.cvut.cz>
> > Předmět: Re: [Star-hp-l] HP-pwg meeting 10 AM BNL time, 10th Aug
> > 2023
> >
> > Hi Jakub,
> >
> > thanks for the update. It looks like the peaks are wider. If it's
> > quick, can you do the same exercise for Upsilon signal divided in
> > Upsilon pT bins ?
> > It would be useful to add comparison of  numerical values between
> > the previous constraint from Leszek fit parameters (mean and width)
> > and the ones that your new fit prefers.
> > And it would be good to see in more detail what happens with the
> > signal's width for J/psi in Brennan's analysis.
> >
> > Cheers,
> > Barbara
> >
> > On Tue, Aug 15, 2023 at 10:44 AM Ceska, Jakub via Star-hp-l
> > <star-hp-l AT lists.bnl.gov> wrote:
> >
> > Dear Barbara,
> >
> > thank you for your comments. I have tried relaxing the widths (and
> > the means) of the CB functions. This appears to cover the signal
> > better. Please see slides 22 and 23 in the attached presentation:
> > https://drupal.star.bnl.gov/STAR/blog/ceskajak/HP-PWG-meeting-150823
> > [1]
> >
> > As for the embedding, I am working on it, but have no results yet.
> >
> > Best regards,
> > Jakub
> >
> > -------------------------
> >
> > Od: Barbara Trzeciak <barbara.trzeciak AT gmail.com>
> > Odesláno: pátek 11. srpna 2023 12:49
> > Komu: STAR HardProbes PWG <star-hp-l AT lists.bnl.gov>
> > Kopie: Ceska, Jakub <jakub.ceska AT fjfi.cvut.cz>
> > Předmět: Re: [Star-hp-l] HP-pwg meeting 10 AM BNL time, 10th Aug
> > 2023
> >
> > Hi Jakub,
> >
> > thanks for the update on the fitting.
> > Looking at your slide 20, it seems that this left tail is part of
> > the signal. Could you please check what happens if you make looser
> > constraints to your Upsilon signal width.
> > Also, have you had a chance to look at the embedding to see if you
> > get such a wide signal there ?
> >
> > Cheers,
> > Barbara
> >
> > On Thu, Aug 10, 2023 at 2:11 PM Ceska, Jakub via Star-hp-l
> > <star-hp-l AT lists.bnl.gov> wrote:
> >
> > Dear all,
> >
> > please find my slides attached:
> > https://drupal.star.bnl.gov/STAR/blog/ceskajak/HP-PWG-meeting-100823
> >
> > Best,
> > Jakub
> >
> > -------------------------
> >
> > Od: Star-hp-l <star-hp-l-bounces AT lists.bnl.gov> za uživatele Ceska,
> > Jakub via Star-hp-l <star-hp-l AT lists.bnl.gov>
> > Odesláno: středa 9. srpna 2023 18:02
> > Komu: STAR HardProbes PWG <star-hp-l AT lists.bnl.gov>
> > Kopie: Ceska, Jakub <jakub.ceska AT fjfi.cvut.cz>
> > Předmět: Re: [Star-hp-l] HP-pwg meeting 10 AM BNL time, 10th Aug
> > 2023
> >
> > Dear all,
> >
> > I will report on the questions raised last week and present an
> > update on the status of the analysis of the Run17 Upsilons.
> >
> > If possible, I would like to present at the beginning of the
> > meeting, as I will need to leave by 12 EDT.
> >
> > Best,
> > Jakub
> >
> > -------------------------
> >
> > From: Star-hp-l <star-hp-l-bounces AT lists.bnl.gov> on behalf of
> > 张炜 via Star-hp-l <star-hp-l AT lists.bnl.gov>
> > Sent: Wednesday, August 9, 2023 3:47:06 PM
> > To: STAR HardProbes PWG <star-hp-l AT lists.bnl.gov>
> > Cc: 张炜 <wzhang AT m.scnu.edu.cn>
> > Subject: Re: [Star-hp-l] HP-pwg meeting 10 AM BNL time, 10th Aug
> > 2023
> >
> > Dear All，
> >
> > I'd like to give an update on AuAu27、19.6、14.6GeV analysis.
> >
> > Best，
> > Wei
> >
> > ------------------ Original ------------------
> >
> > From:  "STAR HardProbes PWG"<star-hp-l AT lists.bnl.gov>;
> > Date:  Wed, Aug 9, 2023 07:53 PM
> > To:  "STAR HardProbes PWG"<star-hp-l AT lists.bnl.gov>;
> > Cc:  "Roy Chowdhury Priyanka
> > (DOKT)"<priyanka.roy_chowdhury.dokt AT pw.edu.pl>;
> > Subject:  Re: [Star-hp-l] HP-pwg meeting 10 AM BNL time, 10th Aug
> > 2023
> >
> > Hello Nihar and all,
> >
> > I will give an update on track merging issue for D0-hadron
> > femtoscopy. I will upload my slides later.
> >
> > Regards,
> > Priyanka
> >
> > -------------------------
> >
> > From: Star-hp-l <star-hp-l-bounces AT lists.bnl.gov> on behalf of
> > Nihar Sahoo via Star-hp-l <star-hp-l AT lists.bnl.gov>
> > Sent: Tuesday, August 8, 2023 10:06 AM
> > To: Star-hp L <Star-hp-l AT lists.bnl.gov>
> > Cc: Nihar Sahoo <nihar AT rcf.rhic.bnl.gov>
> > Subject: [Star-hp-l] HP-pwg meeting 10 AM BNL time, 10th Aug 2023
> >
> > Hello All,
> >
> > We will have our HP-pwg meeting this Thursday (10th Aug) at 10 AM
> > EDT.
> > Let us know please if you want to present and discuss your analysis
> > or
> > any other business.
> > Send your presentation slides a few hrs before the meeting, please.
> >
> > As QM2023 deadline is approaching, we request all PAs to update us
> > your
> > status for your presentation/poster.
> >
> > HP working group weekly meeting info:
> https://drupal.star.bnl.gov/STAR/pwg/Hard-Probes/Weekly-HP-PWG-meeting
> > Join ZoomGov Meeting
> https://bnl.zoomgov.com/j/1611419615?pwd=VW1hNm43ZDd5d2EvK2R4aEJsQ2ZNZz09
> > [2]
> >
> > Meeting ID: 161 141 9615
> > Passcode: 744968
> >
> > Regards,
> > Isaac, Yi and Nihar
> > _______________________________________________
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> >
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> --
>
> ~ Neil
>
> --
>
> ~ Neil
>
> Links:
> ------
> [1] 
> https://drupal.star.bnl.gov/STAR/blog/ceskajak/HP-PWG-meeting-150823
> [2] 
> https://urldefense.com/v3/__https://bnl.zoomgov.com/j/1611419615?pwd=VW1hNm43ZDd5d2EvK2R4aEJsQ2ZNZz09__;!!P4SdNyxKAPE!C0kgtN_CyUdDd6WuslA8rEi7DLx1vclviJfToU_3a7peinSeePdJXpWZfWhg0YcbLANrvol1vGZ0UYrj4wv7tKrjRaP05bd6NUKv$