STAR HardProbes PWG

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

Hello Youqi,

I don't have further comments. I sign off.
I will pass it to startalk.

Enjoy the conference.

Best
Nihar

On 2024-09-18 06:46, Youqi Song wrote:
> Hi conveners,
>
> I just uploaded a newer version of slides (v3) to drupal after my
> practice with the local group, and the slide numbers are now different
> again. In particular, slides 2, 3, 9 and 10 are new.
>
> Below I also rewrote the previous email I sent with the updated slide
> numbers. Please take a look. Thank you!
>
> Best,
> Youqi
>
> Yi:
>
> > - p8: We have lots of Au+Au data, do you expect any difference
> > between Au+Au and Isobar (can we learn more from using Au+Au data)?
> > Probably it would be nice to add a statement here.
>
> Slide 10 in the new version addresses this. I think the lower
> multiplicity can make background subtraction easier, although if there
> is modification of hadronization due to QGP, then the signal would
> probably be more significant in AuAu. And as an internal note,
> Diptanil expressed interest in measuring r_c with the AuAu dataset
> before, which is why I went with isobar.
>
> Nihar:
>
> > Slide#3:
> >
> > |η| < 1, full azimuthal coverage -> Mention full eta acceptance of
> > TPC
> > |eta| < 1.5
> > if this is for your analysis then mention in the dataset and
> > track
> > selection criteria
>
> I didn't use |eta| < 1.5. I have |eta| < 1 because I see that both
> Tong and Tristan did their analyses with |eta| < 1 and thought that
> iTPC wasn't in use in the isobar run.
>
> > Slide9:
> > enhanced S/B -> Please elaborate
>
> This is now on slide 12. Unfortunately, there is already quite a lot
> of text on this slide, so I would prefer to not put more if it's ok. I
> said it's an enhanced S/B because with the embedding, I put at least
> one real jet from PYTHIA into the isobar event. But in the actual data
> analysis, we cannot guarantee that we have a real jet per event.
>
> On Mon, Sep 16, 2024 at 8:06 PM Youqi Song <youqi.song AT yale.edu>
> wrote:
>
> > Hi all,
> >
> > Thanks for the comments! I uploaded a new version to drupal. Note
> > that slides 2 and 9 in the current version are new. Please find my
> > responses to your suggestions below. Thank you!
> >
> > Best,
> > Youqi
> >
> > Yi:
> >
> > > - p8: We have lots of Au+Au data, do you expect any difference
> > > between Au+Au and Isobar (can we learn more from using Au+Au
> > > data)? Probably it would be nice to add a statement here.
> >
> > Slide 9 in the new version addresses this. I think the lower
> > multiplicity can make background subtraction easier, although if
> > there is modification of hadronization due to QGP, then the signal
> > would probably be more significant in AuAu. And as an internal note,
> > Diptanil expressed interest in measuring r_c with the AuAu dataset
> > before, which is why I went with isobar.
> >
> > Nihar:
> >
> > > Slide#3:
> > >
> > > |η| < 1, full azimuthal coverage -> Mention full eta acceptance
> > > of TPC
> > > |eta| < 1.5
> > > if this is for your analysis then mention in the dataset and
> > > track
> > > selection criteria
> >
> > I didn't use |eta| < 1.5. I have |eta| < 1 because I see that both
> > Tong and Tristan did their analyses with |eta| < 1 and thought that
> > iTPC wasn't in use in the isobar run.
> >
> > > Slide9:
> > > enhanced S/B -> Please elaborate
> >
> > This is now on slide 11. Unfortunately, there is already quite a lot
> > of text on this slide, so I would prefer to not put more if it's ok.
> > I said it's an enhanced S/B because with the embedding, I put at
> > least one real jet from PYTHIA into the isobar event. But in the
> > actual data analysis, we cannot guarantee that we have a real jet
> > per event.
> >
> > On Mon, Sep 16, 2024 at 8:20 AM Nihar Sahoo
> > <nihar AT rcf.rhic.bnl.gov> wrote:
> >
> > > Hello Youqi,
> > >
> > > Please find a few comments on your nice presentation slides.
> > >
> > > Slide#3:
> > >
> > > |η| < 1, full azimuthal coverage -> Mention full eta acceptance
> > > of TPC
> > > |eta| < 1.5
> > > if this is for your analysis then mention in the dataset and
> > > track
> > > selection criteria
> > >
> > > Slide9:
> > > enhanced S/B -> Please elaborate
> > >
> > > Best
> > > Nihar
> > >
> > > On 2024-09-08 10:39, webmaster AT star.bnl.gov wrote:
> > > > Dear Star-hp-l AT lists.bnl.gov members,
> > > >
> > > > Youqi Song (youqi.song AT yale.edu) has submitted a material for a
> > > review,
> > > > please have a look:
> > > > https://drupal.star.bnl.gov/STAR/node/68863
> > > >
> > > > Deadline: 2024-09-22
> > > > ---
> > > > If you have any problems with the review process, please contact
> > > > webmaster AT www.star.bnl.gov