STAR HardProbes PWG

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

Hello Helen,

Thank you for your comments.
I have implemented all your suggestions in version-4.
https://drupal.star.bnl.gov/STAR/presentations/Hard-Probes-2023/STAR-Experimental-Highlights

Regards
Nihar

On 2023-03-25 03:16, Helen Caines wrote:
> Hi Nihar, Joern
>
> This looks pretty good now, thanks for all the hard work. A few more
> comments/questions
>
> Slide 2: It would be nice to highlight on this slide what data will be
> shown at this conference, its quite a bit
>
> Slide 6: the statement seems to have become garbled it should say
>
> Transition region at Delta(R)* pT_jet =  2-3 GeV for all jet pT
> —> Confinement of quark/gluon degrees of freedom into hadrons occurs
> at universal momentum scale
>
> I don’t know what (tbf) means
>
> I think Andrew has one more correction after the good suggestion to
> change the theory credit to K. Lee et al.
>
> For slide 7 I just sent around a compromise statement I think all can
> agree on at this point.
>
> Slide 9: the title is a bit weird. Aren’t we always trying to model
> reality?
> Maybe Confronting models with data:
>
> Slide 11: for the Raa plot, what do you mean by there is no energy
> dependence? We can’t tell from what is shown there as it is all at
> 200 GeV.
> I think the caption should read
>
> Suppression driven by <N_part>
>  - energy density more of a driver of average quenching than initial
> geometry
>
> Why do you have the question "Consistent picture with jet
> measurements?” what do you think is inconsistent?
>
> Slide 12: Highest precision on J/ψ measurement at RHIC energies —>
> Highest precision J/ψ measurement at RHIC energies to date
>
> Slide 13: The left plot is missing the sqrt(s) energy
>
> Slide 15: I suggest Sufficient QGP temperature to melt states at RHIC
> —> Sufficient QGP temperature to melt states at top RHIC energies
>
> Slide 16:  Why do you have “almost” in the following sentence
> "Almost the same level of jet and J/ψ suppression as seen in
> Au+Aucollisions;” Within errors it is the same at the same Npart,
> which means its significantly less in central Isobar than central
> Au-Au
>
> Suggest "Observed different manifestation of jet-medium…” —>
> “Probe different manifestations of jet-medium …”  since we
> don’t claim to definitively see jet accoplanarity or baryon-meson
> differences yet
>
> Helen
>
> ***********************
> Yale University
> Physics Dept. - Wright Lab.
> PO Box 208120
> New Haven, CT 06520
> 203-432-5831
> ***********************
> she/her/hers
> "Life is not about waiting for the storms to pass.
> It's about learning how to dance in the rain." - Vivian Greene
>
> > On Mar 24, 2023, at 4:11 PM, Helen Caines <helen.caines AT yale.edu>
> > wrote:
> >
> > Hi,
> >
> > Since time is now short I propose that we go with
> >
> > ""...consistent with angular ordering of the parton shower”
> >
> > In the 3 talks (Youqi, Monika and Joern/Nihar)
> >
> > To be continued after HP, or during for those of us not able to be
> > there:
> >
> > Nihar, its not true that what Youqi is looking at is the first split
> > (that is what Raghav is trying to explain). The Softdrop
> > declustering algorithm is defined to recursively remove soft
> > wide-angle radiation from a jet, so If delta(M) > 0 there has to
> > have been some splitting  BEFORE the one that stop Softdrop and has
> > the Rg that Youqi is looking at.
> >
> > Helen
> >
> > ***********************
> > Yale University
> > Physics Dept. - Wright Lab.
> > PO Box 208120
> > New Haven, CT 06520
> > 203-432-5831
> > ***********************
> > she/her/hers
> > "Life is not about waiting for the storms to pass.
> > It's about learning how to dance in the rain." - Vivian Greene
> >
> > On Mar 24, 2023, at 3:06 PM, Nihar Sahoo via Star-hp-l
> > <star-hp-l AT lists.bnl.gov> wrote:
> >
> > Hello Raghav,
> >
> > Thank you for this explanation.
> > I think the picture what you try to say is not what we are measuring
> > here.
> > it may get complicated when we use ratio of dM and M.
> > and also in this measurement we can only say about at the 1st split
> > not subsequent emission.
> >
> > So I am not sure to say
> > SLide:9
> > "...which confirms angular ordering of parton shower"
>
> Hence, It could be Ok to say
> "...which confirms angular ordering of parton shower at 1st split"
> or
> "...which indicates angular ordering of parton shower"
>
> Let me know what do you think.
>
> Regards
> Nihar
>
> once we use dM/M ratio and also
> On 2023-03-24 18:28, Raghav Kunnawalkam Elayavalli wrote:
>
> > Hi Nihar,
> >
> > > SLide:9
> > > "...which confirms angular ordering of parton shower"
> > > Looking at 1st split with grooming we can not say anything about
> > > "angular ordering".
> > > In QCD "angular ordering" it implies "subsequent emissions follow
> > > specific ordering (either space-like or time-like) as a function
> > > of
> > > time".
> > > Here we don't probe subsequent emissions as function of time.
> > > I don't get how do we conclude "confirms angular ordering of
> > > parton
> > > shower".
> > > Please elaborate.
> > These *are* different splittings. Lets take a simple cartoon
> > picture
> > of a jet that looks like this -
> > jet initiating parton - q -> q + g  (split A)
> > q + g + g (split B)
> > q + g + g + g (split C)
> > q + g + g + g + g (split D)
> > if you have SD select a ‘first hardest split’ - sometimes it can
> > give you A, sometimes B, sometimes C etc.. it will give you the
> > split
> > that passed the zcut.
> > if you end up selecting split A as your SD, your dM will be 0 by
> > definition.
> > Now, if you select on jets that have a large dM, you will likely be
> > selecting splits B or C or D. but they will still be ’tagged’ as
> > your ‘first hard softdrop’ split. but technically, they are
> > happening *after* split A yes. so they are later in time.
> > that is why, now if we select jets with greater and greater Rg, we
> > end
> > up seeing a larger dM and consequently, a flatter zg shape.
> > Cheers
> > Raghav
> > **************************************
> > First Name - Raghav
> > Last Name - Kunnawalkam Elayavalli
> > Pronouns - they/them
> > email - raghav.ke AT vanderbilt.edu
> > website - https://www.raghavke.me [1]  [1]
> > RHIC/AGS UEC member
> > Assistant Professor of Physics
> > Stevenson Center 6410
> > Physics & Astronomy Department
> > Vanderbilt University
> > Nashville, TN 37235-1807
> > **************************************
> >
> > > On Mar 24, 2023, at 7:21 AM, Nihar Sahoo via Star-hp-l
> > > <star-hp-l AT lists.bnl.gov> wrote:
> > > Hello Monika,
> > > Thank you for updating your slides.
> > > I don't have any further comments on all your slides except the
> > > following one.
> > > SLide:9
> > > "...which confirms angular ordering of parton shower"
> > > Looking at 1st split with grooming we can not say anything about
> > > "angular ordering".
> > > In QCD "angular ordering" it implies "subsequent emissions follow
> > > specific ordering (either space-like or time-like) as a function
> > > of
> > > time".
> > > Here we don't probe subsequent emissions as function of time.
> > > I don't get how do we conclude "confirms angular ordering of
> > > parton
> > > shower".
> > > Please elaborate.
> > > Thank you
> > > Nihar
> > > On 2023-03-24 17:21, Robotkova, Monika wrote:
> > > Hello Barbara and Nihar,
> > > I updated figures in my slides and also rephrased some texts based
> > > on
> > > internal discussion. New version is uploaded on Drupal page.
> > > Best regards,
> > > Monika
> > > -------------------------
> > > Od: Barbara Trzeciak <barbara.trzeciak AT gmail.com>
> > > Odesláno: pátek 24. března 2023 2:30
> > > Komu: Robotkova, Monika <robotmon AT fjfi.cvut.cz>
> > > Kopie: Yi Yang <yiyang0429 AT gmail.com>; STAR HardProbes PWG
> > > <star-hp-l AT lists.bnl.gov>; Nihar Sahoo <nihar AT rcf.rhic.bnl.gov>;
> > > webmaster AT star.bnl.gov <webmaster AT star.bnl.gov>
> > > Předmět: Re: [Star-hp-l] STAR presentation by Monika Robotkova
> > > for
> > > Hard Probes 2023 submitted for review
> > > Hi Monika,
> > > I sign off your talk.
> > > Please just update the plots on slides 8-10 with the final
> > > versions
> > > (check with Youqi) and use better resolution plots.
> > > Cheers,
> > > Barbara
> > > On Thu, Mar 23, 2023 at 10:58 AM Robotkova, Monika
> > > <robotmon AT fjfi.cvut.cz> wrote:
> > > Hello Barbara and Yi,
> > > Thank you very much very much for your comments, I've implemented
> > > them and uploaded v4 on Drupal page. I also updated page with
> > > preliminary plots and preliminary request slides:
> https://drupal.star.bnl.gov/STAR/blog/robotmon/Preliminary-figures-Jet-substructure-observables-mu-and-kt.
> > > Please see my comments below.
> > > Yi:
> > > - p8: I am not sure if it is good to mention "See Youqi's details
> > > at DIS2023".
> > > I decided to leave the text on the slide since also Youqi has
> > > something similar in her slides, but I rephrased it as Barbara
> > > suggested.
> > > Barbara:
> > > - s28: why do you specifically show systematic uncertainties for
> > > z_g ?
> > > It's just an example how our systematics looks like and also the
> > > only systematics plot with preliminary status from previous
> > > presentations.
> > > Best regards,
> > > Monika
> > > -------------------------
> > > Od: Barbara Trzeciak <barbara.trzeciak AT gmail.com>
> > > Odesláno: středa 22. března 2023 5:12
> > > Komu: Yi Yang <yiyang0429 AT gmail.com>
> > > Kopie: Robotkova, Monika <robotmon AT fjfi.cvut.cz>; STAR HardProbes
> > > PWG <star-hp-l AT lists.bnl.gov>; Nihar Sahoo
> > > <nihar AT rcf.rhic.bnl.gov>;
> > > webmaster AT star.bnl.gov <webmaster AT star.bnl.gov>
> > > Předmět: Re: [Star-hp-l] STAR presentation by Monika Robotkova
> > > for
> > > Hard Probes 2023 submitted for review
> > > Hi Monika,
> > > thanks for the updated slides.
> > > Please see my remaining minor comments below. And please update
> > > your
> > > preliminary request to the drupal page with your preliminary
> > > plots.
> > > - Add the conference logo on the first slide and add the
> > > conference
> > > name to the footer of other slides.
> > > - s8: The last bullet, you can add "\beta_1,2 = 0, z_cut,2 = 0.1"
> > > - s8: See Youqi Song’s ... -> More details in Youqi Song’s ..
> > > - s8, 9, 10: use better resolution plots.
> > > - s28: why do you specifically show systematic uncertainties for
> > > z_g
> > > ?
> > > Cheers,
> > > Barbara
> > > On Wed, Mar 22, 2023 at 12:48 PM Yi Yang <yiyang0429 AT gmail.com>
> > > wrote:
> > > Hi Monika,
> > > Thanks a lot for the updated version. I only have two minor
> > > suggestions on v3 for your consideration.
> > > - p8, p9: the "boxes (yellow, green, and black)" cover the
> > > information on the plot, could you please try thinner line for
> > > them?
> > > - p8: I am not sure if it is good to mention "See Youqi's details
> > > at DIS2023".
> > > Cheers,
> > > Yi
> > > On Tue, Mar 21, 2023 at 12:52 PM Robotkova, Monika via Star-hp-l
> > > <star-hp-l AT lists.bnl.gov> wrote:
> > > Hello Barbara and Nihar,
> > > Thank you very much for your comments, I've implemented them and
> > > uploaded new version on Drupal page. I also made some minor
> > > changes
> > > based on rehearsal at our institution.  Link on my preliminary
> > > plots:
> https://drupal.star.bnl.gov/STAR/blog/robotmon/Preliminary-figures-Jet-substructure-observables-mu-and-kt
> > > and preliminary request slides:
> https://drupal.star.bnl.gov/STAR/blog/robotmon/Preliminary-figures-request-Multi-dimensional-measurements-jet-substructure-pp-collisi.
> > > You can find my comments below.
> > > Best regards,
> > > Monika
> > > Slide-4:
> > > Right side STAR detector pic, You need to use updated detector
> > > with
> > > forward detectors.
> > > I decided to put there figure from 2012 when data for our analysis
> > > were collected.
> > > From slide7 to 8, it is not clear what is "Rg vs. dM/M at the
> > > first
> > > split" as title on slide-8?
> > > You need to mention before what is dM/M?
> > > People may not remember what is Mg? You need to mention here
> > > again.
> > > I have the cartoon on the right and also the definition of dM, so
> > > I
> > > think it is sufficient to explain it by words. I also added
> > > Collinear drop on this slide.
> > > -------------------------
> > > Od: Star-hp-l <star-hp-l-bounces AT lists.bnl.gov> za uživatele
> > > Barbara Trzeciak via Star-hp-l <star-hp-l AT lists.bnl.gov>
> > > Odesláno: pátek 17. března 2023 8:24
> > > Komu: Nihar Sahoo <nihar AT rcf.rhic.bnl.gov>; STAR HardProbes PWG
> > > <star-hp-l AT lists.bnl.gov>
> > > Kopie: webmaster AT star.bnl.gov <webmaster AT star.bnl.gov>
> > > Předmět: Re: [Star-hp-l] STAR presentation by Monika Robotkova
> > > for
> > > Hard Probes 2023 submitted for review
> > > Hi Monika,
> > > Thanks for the nice slides with a good story.
> > > My comments are below.
> > > - Add the STAR logo on the title page.
> > > - s4: the STAR figure is a bit small. Try to make the text around
> > > it, or just zoom on the detectors that are of interest here.
> > > - s8: it's nice to advertise Youqi's talk. But it's a different
> > > conference and you present here some of the results.
> > > It would be therefore good to briefly introduce the Collinear
> > > Drop,
> > > you can do this on s8.
> > > - s9: you don't need "and dM/M for different Rg" in the title.
> > > - s11, 13: remove "for two different pT,jet bins" from the title.
> > > - s16: try to increase the size of the plots.
> > > - s17: I suggest having the last two summary statements in
> > > different
> > > colours.
> > > Cheers,
> > > Barbara
> > > On Fri, Mar 17, 2023 at 1:18 PM Nihar Sahoo via Star-hp-l
> > > <star-hp-l AT lists.bnl.gov> wrote:
> > > Hello Monika,
> > > Please find my comments on your nice presentation slides.
> > > ___________
> > > General comment/suggestion to all HP2023 and DIS2023 presenters:
> > > 1. Please make a Drupal page for all your preliminary plots and
> > > provide
> > > us the link.
> > > If you have already done that, please send us the link.
> > > 2. While preparing your analysis plots for "STAR preliminary"
> > > request,
> > > please follow the guidance 1-7:
> > > https://drupal.star.bnl.gov/STAR/pwg/common/Preliminary-figures
> > > It saves our time.
> > > _________
> > > Slide-3:
> > > For groomed mass fraction expression, the denominator one can use
> > > "M_g".
> > > Is not that?
> > > If yes, then it would be good this.
> > > Slide-4:
> > > Right side STAR detector pic, You need to use updated detector
> > > with
> > > forward detectors.
> > > Please mention what is "Jet Patch trigger"? Or just remove it.
> > > Slide-5:
> > > Title: "Unfolding" -> "Detector effects correction"
> > > …obtain particle-level distribution -> "…true distribution
> > > from
> > > measured
> > > one"
> > > SLide-8:
> > > From slide7 to 8, it is not clear what is "Rg vs. dM/M at the
> > > first
> > > split" as title on slide-8?
> > > You need to mention before what is dM/M?
> > > People may not remember what is Mg? You need to mention here
> > > again.
> > > Slide-11
> > > Please comment on Slide-3
> > > Cheers
> > > Nihar
> > > On 2023-03-17 16:03, webmaster--- via Star-hp-l wrote:
> > > Dear Star-hp-l AT lists.bnl.gov members,
> > > Monika Robotkova (robotmon AT fjfi.cvut.cz) has submitted a material
> > > for a
> > > review, please have a look:
> > > https://drupal.star.bnl.gov/STAR/node/63008 [1]
> > > Deadline: 2023-03-26
> > > ---
> > > If you have any problems with the review process, please contact
> > > webmaster AT www.star.bnl.gov
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