STAR HardProbes PWG

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

Hello Dave,

Thank you for implementing my comments.

Please correct on slide15:
_ (3) (3) jet in BBC
But I am not sure what is the meaning of "jet in BBC"? We are not 
measuring jet using BBC here. right?

With this clarification, I sign off.
I have no more comments.

Cheers
Nihar

On 2023-06-09 23:31, David Stewart wrote:
> Hi Nihar,
> Thanks for your careful reading and feedback. I have updated my slides
> to version 1 in the system at this page [1] (which points to this pdf
> [2]). Please see my comments and edits responding to your comments
> in-line below,
> Best regards,
> Dave
>
> On Fri, Jun 9, 2023 at 2:26 AM Nihar Sahoo via Star-hp-l
> <star-hp-l AT lists.bnl.gov> wrote:
>
> > Hello Dave,
> >
> > Please find my comments on your nice presentation slides.
> >
> > SLide-3:
> > _ '&' -> 'and' all places
>
> done
>
> > _"Experimentally observe initial parton distribution: " -> Sounds
> > awkward, if you refer to Slide 7and 8, then I would prefer "Measure
> > quark and gluon fraction initiated jet"
>
> edited
>
> > _Measure parton shower increasingly differentially  -> Not clear
> > what do
> > you want to say?
>
> edited
>
> > SLide-4:
> > _Experimental data: particles in STAR -> "STAR detector" [as you
> > have
> > not discussed any data and run except detector]
>
> ? not sure why, but done
>
> > _TPC particles  -> Charged particles from TPC
> > _TPC + BEMC particles -> Charged particle from TPC and neutral
> > particles
> > from BEMC
>
> Not changed for now; I think this is more words without any extra
> meaning because the type of particles are already stated in TPC and
> BEMC bullets above.
>
> > SLide-5:
> > _Field theory predicts observable -> Give reference.
> > arXiv:2205.03414 ,
> > 2209.11236
_"Observe/measure Λ_QCD" -> Do you mean we can measure
> >
> > "Λ_QCD" using EEC? Make it clear.
> > _ @ -> "At" or "For"
>
> done
>
> > SLide-6:
> > _ Title: First corrected EEC measurement -> I recall these are not
>
> > "corrected". Can you please confirm it?
>
> done
>
> > _ GeV/c vs GeV/ italic{c} -> make it consistent at all places
>
> done
>
> > SLide-8:
> > _Can you please remind me where do you get this preliminary plot?
>
> https://drupal.star.bnl.gov/STAR/blog/gmcnam/Preliminary-Request-Jet-Charge-DNP-2022
>
>
> > _(data is moving to the right -> more quark dominated) ->it is not
> > apparent. Can you point to me this preliminary results or previous
> > presentation slides?
>
> same link as above -- but you can see it i
>
> > Slide-9:
> > _ I like right side jet cartoon. But it is quite unusual to have
> > that
> > many particles in pp jet even if it is a cartoon. Can you please
> > make
> > that with less number of arrows.
>
> I'll put it on my list to remake a new more pp-like
>
> > _ Make the equation size bigger so that visible to audience
>
> done
>
> > _hot nuclear effects -> hot-dense QCD matter effect
>
>  done
>
> > _"Same results from measurement of jet girth" -> Better to be silent
> > as
> > you are not showing any results here. Opt to drop it.
>
> I have the figure in the backup, it was just cut for time. Is there a
> graceful way to advertise that this is also being measured?
>
> > Slide-13:
> > jets from -> jet yield from
>
> done
>
> > SLide-14 and 13:
> > Introduce "EA"
>
> done on slide 13
>
> > Slide15
> > _ RAA -> R_AA
>
> done
>
> > _ At RHIC kinematics -> Or "At STAR kinematics"
>
>  done
>
> > _ (3) jet in BBC ->  Do you mean "activity in BBC"? Not sure what is
> >
> > "jet in BBC"?
>
> done
>
> > _ No "auto-correlation" from jets in EA acceptance -> Can you please
> >
> > explain what do you mean here "auto-correlation"?
>
> edited
>
> > Slide-16:
> > _ mid-pT and lower-pT ->  mid-p_{T}^{reco} and lower-p_{T}^{reco} _"
> >
> > Anti-correlation: EA distribution in high-𝑝T jet events
> > significantly
> > softer than EA distribution in mid-𝑝T and lower-𝑝T jet events"
> > -> here
> > this sentence is confusing. It is because of  "high-𝑝T jet
> > events"  and
> > "mid-𝑝T and lower-𝑝T jet events"; Can you please clarify it?
>
>  revised
>
> > _And what is this <BBCE sum > for each pT^reco bins? Not clear.
>
> label is edited
>
> > _In side plot, 10< p_{Tiled}^{reco} < 15 -> 10< p_{Tiled}^{reco} <
> > 15
> > GeV/c; same for other two
>
> done
>
> > SLide-17:
> > _"Qualitatively different from quenching in QGP in A+A collisions"
> > ->
> > Can you please expound what is the qualitative difference here
> > between
> > A+A and p+A?
>
> really good catch -- I have reorganized the bullets to indicate the
> logic
>
> > Slide-20:
> > _ "Correlation results not from final state effects, but rather
> > “new”
> > physics present in initial configuration of the ions, or the initial
> >
> > stages of the collision" -> Not clear where do you get this
> > conclusion?
> > Can you please point to me which results you refer here?
>
>  wording is edited
>
> > I suggest to improve your summary slides 20-21. In the current form,
> > it
> > is a bit unorganized way summarizing your beautiful results and
> > number
> > of topics you covered in this presentation. Can you please give a
> > try to
> > improve it so that audience can get takeaway message ?
>
>  are much edited
>
> > Cheers
> > Nihar
> >
> > On 2023-06-07 01:17, webmaster--- via Star-hp-l wrote:
> > > Dear Star-hp-l AT lists.bnl.gov members,
> > >
> > > David Stewart (david.j.stewart AT yale.edu) has submitted a material
> > for a
> > > review, please have a look:
> > > https://drupal.star.bnl.gov/STAR/node/63898
> > >
> > > Deadline: 2023-06-19
> > > ---
> > > 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
> > _______________________________________________
> > Star-hp-l mailing list
> > Star-hp-l AT lists.bnl.gov
> > https://lists.bnl.gov/mailman/listinfo/star-hp-l
>
> --
>
> David Stewart
> Postdoctoral Fellow | Department of Physics, Wayne State University
>
> Links:
> ------
> [1] 
> https://drupal.star.bnl.gov/STAR/presentations/2023/Measurements-jet-substructure-pp-and-jet-event-activity-correlations-pAu-collis-0
> [2] https://drupal.star.bnl.gov/STAR/system/files/StarHP_IS2023_v1.pdf