STAR HardProbes PWG

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

Hello Rongrong,

Thanks for sharing your nice HP talk.
Please find my comment and question below.


Slide#6: "high-pT leading particle "  -> "high-pT constituent particle"
 "single hadrons" -> "inclusive charged hadrons"

Slide#7 "spectrum shape" I understand the reason to mention this that 
jet pT spectra shapes are different for pi0 and gamma.
               But not sure if it is ok to include this with color 
factor and mean path length dependence.
               "Spectrum shape" is after hadronization.
                You may consider to include another bullet about "Jet pT 
spectral shapes are different for pi0+jet and gamma+jet"

"Similar suppression for γ-jet and π0-jet" -> "Similar suppression for 
γ-jet and π0-jet within uncertainty"

You could also point out  that "for R=0.5, IAA(pt) shape is different 
than R=0.2"

SLide#8:
"Ratio of cross sections " -> in this context "Ratio of yield as a 
function of jet pT"  (these are semi-inclusive measurement)

Slide#9:
Title "Inter-jet Broadening" -> "γ-jet and π0-jet acoplanarity" or 
simply "Jet acoplanarity in heavy-ion collisions"

For this slides, I suggest to include p+p data and Pythia8 comparisons 
to convince people that both are consistent at 9-11 GeV ET.
(For note: In case someone ask to have same kinematic comparison for pp 
like 11-15 GeV, you could say that we have done that measurement 
recently; but not shown here And for pi0+jet they are also consistent 
within uncertainty; we are working for publication.)

"Effects of wake?" -> Do we need to point to this physics only here? 
There are other physics also.

SLide#10
_ Please mention "Delta R" somewhere
_Do we need to mention here the matching criteria?

Slide#11
"< AJ > " -> Do you mean average AJ ?
Another important info from this measurement was "No significant 
difference between p+p and Au+Au of jet substructure with hardcore 
selection"
Do you want to point this out?

Slide#17
"Redistribution of charm quarks in HI collisions?" Not sure but is not 
that "More production charm quarks in HI collisions?"
          Trying to understand "Redistribution of charm…"

Slide#25
"Inter-jet broadening" -> "Jet acoplanarity"

Slide#27:
Just curious: Do you know why we do not have projection of J/psi v1 
between pT:9-14 GeV/c  where we have projection for v2 upto pT:14 GeV/c?
Is this just we don't show or any reason?

Just a suggestion to include STAR HP kinematic coverage BUR plot for 
RUn23+25, good to show at the end.


Regards
Nihar


On 2022-07-02 01:56, Rongrong Ma via Star-hp-l wrote:
> Hello All
>
> This is an invited talk on sPHENIX relevant STAR results and plans at
> the Predictions for sPHENIX RBRC Workshop
> (https://www.bnl.gov/sphenix2022/index.php). I focus mainly on jets
> and HF results. Please send me your comments. Thanks.
>
> Best
> Rongrong
>
> > On Jul 1, 2022, at 4:22 PM, webmaster--- via Star-hp-l 
> > <star-hp-l AT lists.bnl.gov> wrote:
> >
> > Dear Star-hp-l AT lists.bnl.gov members,
> >
> > Rongrong Ma (marr AT bnl.gov) has submitted a material for a review, 
> > please have
> > a look:
> > https://drupal.star.bnl.gov/STAR/node/60153
> >
> > ---
> > If you have any problems with the review process, please contact
> > webmaster AT www.star.bnl.gov
> > _______________________________________________
> > Star-hp-l mailing list
> > Star-hp-l AT lists.bnl.gov
> > https://lists.bnl.gov/mailman/listinfo/star-hp-l
>
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