STAR HardProbes PWG

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

Hi Tong,

As we discussed at our last HP-meeting, Can you please update your final 
figure including QM2022 HG-PYTHIA (N_coll) label with your new study 
updating HG-PYTHIA(N_hard)?
So that people can see the comparison between these.
And you can discuss in your HQ2022 presentation what is the difference 
between two while considering centrality etc?

Cheers
Nihar



On 2022-09-24 03:31, Tong Liu via Star-hp-l wrote:
> Hi all,
>
> Please find my updates slides in the link below:
> https://drupal.star.bnl.gov/STAR/system/files/HP_pwg_0922_0.pdf
> The Isobar vs Au+Au plot is on slide 16. I'll follow up with more
> pythia MPI studies later.
>
> Tong Liu
> Ph.D. Student '2023
> Physics Dept., Yale University
>
> Tel: 203-435-2130
>
> On Fri, Sep 23, 2022 at 11:00 AM Youqi Song via Star-hp-l
> <star-hp-l AT lists.bnl.gov> wrote:
>
> > Hi all,
> >
> > I have updated my slides for the preliminary request at:
> https://drupal.star.bnl.gov/STAR/system/files/prelim_request_092222_0.pdf.
> > A few things that I would like to point out:
> >
> > Regarding systematics,
> > - You might have noticed that the systematic errors for multifold
> > have gone up by a bit. This is because I realized that before, when
> > doing herwig and pythia8 shape variations, I was using pythia6 mass
> > distribution for the misses. Now I changed it so that the misses
> > contribution for prior shape variation is also weighted by the mass
> > ratio of herwig (pythia8) over pythia6.
> > - After talking with Isaac, I learned that unfolding systematics due
> > to variation of iteration number and variation of prior shape were
> > treated as correlated in previous analyses, while I originally had
> > these added in quadrature. Now I also treat them as correlated by
> > just taking the largest contribution to the unfolding systematic as
> > the overall unfolding systematic, and add it in quadrature with
> > detector systematics.
> > - Regarding the question whether there's anything still missing
> > that's raised during the meeting yesterday, I forgot to mention that
> > we haven't included detector and generator level pT shape smearing.
> > This is included in Raghav's and Isaac's analyses because they did
> > 1D reweighting, but we are not sure if it should be included for
> > multidimensional unfolding.
> >
> > Regarding plotting,
> > - For fig. 1, I made the mass distribution plot with the same data
> > points in 4 different styles.- For fig. 1 ratio plot, the error band
> > is now centered at 1 and is the quadrature of RooUnfold's and
> > MultiFold's unfolding systematics, divided by the mean values from
> > RooUnfold.
> > - For fig. 2, I also included a plot of the M vs Q correlation with
> > raw data before unfolding.
> > - For fig. 3, I have pythia8 curves plotted together with my
> > unfolded mass distributions.
> >
> > Please let me know if you have any comments/suggestions.
> >
> > Best,
> > Youqi
> >
> > On Wed, Sep 21, 2022 at 5:47 PM Youqi Song <youqi.song AT yale.edu>
> > wrote:
> >
> > Hi all,
> >
> > I have uploaded my slides here:
> > https://drupal.star.bnl.gov/STAR/blog/youqi/multifold092222
> >
> > Best,
> > Youqi
> >
> > On Wed, Sep 21, 2022 at 5:04 PM Tong Liu via Star-hp-l
> > <star-hp-l AT lists.bnl.gov> wrote:
> >
> > Hi all,
> >
> > Please find my pdf in this post:
> https://drupal.star.bnl.gov/STAR/blog/tongliu/Tong-Lius-HP-PWG-updates
> > Tong Liu
> > Ph.D. Student '2023
> > Physics Dept., Yale University
> >
> > Tel: 203-435-2130
> >
> > On Wed, Sep 21, 2022 at 3:29 AM Nihar Sahoo via Star-hp-l
> > <star-hp-l AT lists.bnl.gov> wrote:
> > Hello All,
> >
> > We got requests from Youqi and Tong to present their results for the
> > Hot
> > Quark conference.
> > And during Youqi's talk at the collaboration meeting, we did not get
> >
> > time to have Q&A.
> > So let's meet this week to discuss their updates.
> >
> > Youqi and Tong, can you please send link of your slides in this
> > thread
> > again?
> > (I didn't get your previous emails, the reason I do not know)
> >
> > If anybody wants to discuss their results, please let us know.
> >
> > HP-pwg weekly meeting Drupal page:
> https://drupal.star.bnl.gov/STAR/pwg/Hard-Probes/Weekly-HP-PWG-meeting
> > Zoom Meeting link:
> https://bnl.zoomgov.com/j/1611419615?pwd=VW1hNm43ZDd5d2EvK2R4aEJsQ2ZNZz09
> > [1]
> >
> > Meeting ID: 161 141 9615
> > Passcode: 744968
> >
> > Thank you
> > Barbara, Yi, Sooraj, Nihar
> >
> > On 2022-09-19 22:13, Nihar Sahoo via Star-hp-l wrote:
> > > Hello All,
> > >
> > > Last week we discussed a lot at the collaboration meeting, If
> > there is
> > > no urgent matter to discuss,  let's cancel this week's HP pwg
> > meeting.
> > > Have a great week.
> > >
> > > Thank you
> > > Barbara, Yi, Sooraj, and Nihar
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