STAR HardProbes PWG

[tc88qy <tc88qy AT rcf.rhic.bnl.gov>]

Hi Yi,

 Thanks for your sign-off.

Qian Yang

On 2023-12-08 13:27, Yi Yang wrote:
> Hi Qian,
>
> Thanks a lot. I don't have any further comments on your nice slides.
>
> Cheers,
> Yi
>
> On Fri, Dec 8, 2023 at 9:35 AM tc88qy <tc88qy AT rcf.rhic.bnl.gov>
> wrote:
>
> > Hi Yi,
> > Thanks for your nice suggestions. I have implemented all your
> > comments
> > in slides.
> > For the last one, I made a modification on the pT dependence part
> > at
> > the summary page.
> > Please find the new slides in the same webpage.
> >
> > Qian Yang
> >
> > On 2023-12-08 07:17, Yi Yang wrote:
> > > Hi Qian,
> > >
> > > Thanks a lot for the nice slides. I have some minor suggestions
> > for
> > > your consideration.
> > > - p4: observable --> observables
> > > - p9: You didn't mention which dataset you are using.
> > > - p14: The title is overlapped with the STAR Logo
> > > - p17: HIC --> heavy-ion collisions
> > > - p18: you said "no significant pT dependence", but in p10 you
> > > mentioned "Hint of a non-trivial pT dependence at
> > > low-pT range in the HX frame". I think we did this in QM, but now
> > I
> > > think it is a bit contradictory. I would suggest making them
> > > consistent.
> > >
> > > Cheers,
> > > Yi
> > >
> > > On Wed, Dec 6, 2023 at 12:55 PM tc88qy <tc88qy AT rcf.rhic.bnl.gov>
> > > wrote:
> > >
> > > > Hello Nihar，
> > > > Thanks for your comments, please find my rely inline. Also the
> > new
> > > > version has been uploaded.
> > > >
> > > > Qian Yang
> > > >
> > > > On 2023-12-05 11:34, Nihar Sahoo wrote:
> > > > > Hello Qian,
> > > > >
> > > > > Please find my comments on your nice presentation slides.
> > > > >
> > > > > SLide-4:
> > > > > Not sure, what is the purpose of left figure?
> > > > > Left side theory plot is for J/psi polarization in jet where as
> > > > right
> > > > > side is for inclusive J/psi polarization.
> > > > > There are different. The comparison may not be correct. Is not
> > it?
> > > > It is not a comparison, but two examples that proved J/psi
> > > > polarization
> > > > is a key observable in p+p to understand the production
> > mechanism.
> > > > > Besides, Left figure for x-axis J/psi FF (zh) where as the right
> > > > data
> > > > > plot x-axis is Jpsi pT.
> > > > > I understand the purpose of left side figure. But I think this
> > may
> > > > be
> > > > > an incorrect comparison to motive the physics.
> > > > >
> > > > > Slide5:
> > > > > More fruitful process related to J/ψ in heavy-ion collisions:
> > ->
> > > > > Leading J/psi production mechanisms in heavy-ion collisions:
> > > >
> > > > There is also dissociation of J/psi in QGP, which is not a
> > > > production
> > > > mechanism and absent in p+p. so I think leading J/psi production
> > > > mechanisms is not that precise.
> > > >
> > > > > Coalescence -> is this "co-mover"?
> > > >
> > > > Co-mover normally used to describe one of the cold nuclear effect
> > of
> > > > J/psi suppression.
> > > > For a pair of charm and qnti-charm bonds to a J/psi at the phase
> > > > boundary, we normally used the word coalescence/regeneration.
> > > >
> > > > > SLide6:
> > > > > "J/ψ polarization at small pT,…" -> This discussion, in this
> > > > slide,
> > > > > seems out of context. I would suggest remove this or make it
> > clear
> > > > how
> > > > > this is related with Modification of J/ψ feed-down. Or Am I
> > > > > misunderstood?
> > > >
> > > > I made some modification on this slides. The plots gives an
> > example
> > > > of
> > > > feed-down contribution modification due to the QGP. While this
> > text
> > > > gives prediction of such modification will introduce a J/psi
> > > > polarization.
> > > >
> > > > > Slide13:
> > > > > "Particle by Particle polarization of J/ψ in QGP" -> Not clear
> > > > what is
> > > > > particle-by-particle?
> > > > Yes, it is misleading. I remove this part.
> > > > > Best
> > > > > Nihar
> > > > >
> > > > >
> > > > > On 2023-12-04 21:03, tc88qy via Star-hp-l wrote:
> > > > > > Hi Yi,
> > > > > >
> > > > > > I have uploaded the file again, Please check.
> > > > > >
> > > > > > Qian Yang
> > > > > >
> > > > > > On 2023-12-04 16:07, Yi Yang via Star-hp-l wrote:
> > > > > > > Hi Qian,
> > > > > > >
> > > > > > > I removed the 66133 and we will comment on 66134
> > > > > > > (https://drupal.star.bnl.gov/STAR/node/66134).
> > > > > > > But it seems the file in 66134 is also removed, could you
> > please
> > > > > > > upload again? Thanks a lot.
> > > > > > >
> > > > > > > Cheers,
> > > > > > > Yi
> > > > > > >
> > > > > > > On Fri, Dec 1, 2023 at 10:27 PM webmaster--- via Star-hp-l
> > > > > > > <star-hp-l AT lists.bnl.gov> wrote:
> > > > > > >
> > > > > > > > Dear Star-hp-l AT lists.bnl.gov members,
> > > > > > > >
> > > > > > > > Qian Yang (tc88qy AT rcf.rhic.bnl.gov) has submitted a material
> > > > for a
> > > > > > > > review,
> > > > > > > > please have a look:
> > > > > > > > https://drupal.star.bnl.gov/STAR/node/66134
> > > > > > > >
> > > > > > > > Deadline: 2023-12-15
> > > > > > > > ---
> > > > > > > > If you have any problems with the review process, please
> > > > contact
> > > > > > > > webmaster AT www.star.bnl.gov
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