STAR HardProbes PWG

[Yi Yang <yiyang0429 AT gmail.com>]

Hi Tanmay,

Thanks a lot for the nice abstract. I only have some minor comments for your consideration. 

 - Title: from sqrt(sNN) = 200 GeV collisions --> from sqrt(sNN) = 200 GeV p+p and Au+AU collisions  (I prefer to specify the collision types in the title, but it is up to you)

 - L11: 'jet shape observables' are --> "jet shape observables", are

 - L22: pp and Au-Au --> p+p and Au+Au

 - There are other places using "pp collisions", I would suggest to change them to "p+p collisions". 

 

Cheers,

Yi

On Thu, Dec 1, 2022 at 4:31 AM Tanmay Pani via Star-hp-l <star-hp-l AT lists.bnl.gov> wrote:

Hi Sooraj,

Please find your comments implemented here:

https://drupal.star.bnl.gov/STAR/system/files/TP_HP_abstract_v8.pdf

Thanks,

Tanmay

On Wed, Nov 30, 2022 at 1:52 PM Sooraj Radhakrishnan <skradhakrishnan AT lbl.gov> wrote:

Hi Tanmay,

   Please find some comments from me on your nice abstract

L13. jet shape is used as a specific quantity and also as a general term in jet shape observables. Could add in the bracket. ' - radial distribution of constituents relative to the jet axis' 

L13: why bias? is it an experimental effect?

L21: Can a short description for each of these quantities (jet angularity, jet momentum dispersion etc?) be provided? 

L23: are also

thanks

Sooraj

On Tue, Nov 29, 2022 at 9:49 AM Barbara Trzeciak via Star-hp-l <star-hp-l AT lists.bnl.gov> wrote:

Hi Tanmay,

thanks for the update.

I sign off your abstract.

Cheers,

Barbara

On Tue, Nov 29, 2022 at 6:31 PM Tanmay Pani <tanmay.pani.rutgers AT gmail.com> wrote:

Hi all,

Thank you Nihar and Barbara for your nice comments. Please find the new version for my abstract with your comments implemented here:

TP_HP_abstract_v7.pdf

Thanks,

Tanmay

On Tue, Nov 29, 2022 at 6:58 AM Nihar Sahoo <nihar AT rcf.rhic.bnl.gov> wrote:

Hello Tanmay,

Thank you for your reply and modifying your abstract.
I would request you to be present at this week's HP-pwg meeting to
discuss on your abstract.

Please find my comments below on your updated abstract.

L6-7: "Jets formed from hard parton scatterings early in heavy-ion
collisions traverse …" ->
"Jets—produced from hard scatterings of partons early in heavy-ion
collisions—traverse through…"

L16: "…which are expected to spend more time in the QGP medium. " Not
sure that is true at RHIC. Please rephrase this.

L18: "…observable from 200 GeV pp and Au-Au collisions collected by the
STAR experiment. " -> "…observable in p+p and Au+Au collisions at $\sqrt
s_{\rm NN}$ collected by the STAR experiment. "

L19: "We also show fully corrected Girth, … from 200 GeV pp collisions…"
-> "We also show fully corrected other jet shape observables like Girth,
… in p+p collisions." Then make a new sentence.
"The exploratory studies of these observables in Au+Au collisions are
discussed."
(Do not need to mention 200 GeV here as you have mentioned it above
once)

Cheers
Nihar

On 2022-11-29 12:50, Barbara Trzeciak wrote:
> Hi Tanmay,
>
> it looks good to me. I sign off with a few minor comments.
>
> - L13: since you mention only rho here, I would change "differential
> jet shape" -> "jet shape"
> - L17: will present -> present (to be consistent with the next
> sentence)
> - L20-21:  from 200 GeV STAR pp collisions and exploratory studies of
> these observables from 200 GeV STAR Au-Au collisions. ->  from pp
> collisions and exploratory studies of these observables in Au-Au
> collisions at 200 GeV using the STAR detector at RHIC.
>
> Cheers.
> Barbara
>
> On Mon, Nov 28, 2022 at 11:32 PM Tanmay Pani
> <tanmay.pani.rutgers AT gmail.com> wrote:
>
>> Hi Barbara and all,
>>
>> Thanks for the feedback. Please find them implemented here:
>>
>> TP_HP_abstract_v6.pdf [1]
>>
>> By the different populations I meant that the jets at RHIC will be
>> formed from a different population of partons. I have elaborated a
>> bit on that in the abstract. Please let me know if that's okay.
>>
>> Thanks
>>
>> Tanmay
>>
>> On Mon, Nov 28, 2022 at 4:06 PM Barbara Trzeciak
>> <barbara.trzeciak AT gmail.com> wrote:
>>
>> Hi Tanmay,
>>
>> thanks for the update, the current content looks better to me.
>> Please see below my comments.
>>
>> - Add STAR to the tile
>> - Remove the in-line references
>> - L7:  relative to vacuum or a pp collision baseline. ->  relative
>> to vacuum (pp collisions) baseline.
>> - L11-16: "Previous results from the CMS experiment ... towards
>> quark-like fragmentation of jets in presence of a medium" ->   LHC
>> results showed medium-induced modification of jet shape
>> distributions and bias towards quark-like fragmentation of jets.
>> - L17: what do you mean by "different population" ?
>> - L19-20: We present results fully corrected for detector effects
>> rho(r) observable -> In this talk, we will present measurements of
>> the fully corrected rho(r) observable
>> - L22: remove "initial"
>> - L23: observables from 200 GeV STAR Au-Au collisions -> observables
>> in Au+Au collisions.
>> - L24-25: I would remove the last sentence "Comparisons of results
>> ... "
>>
>> Cheers,
>> Barbara
>>
>> On Mon, Nov 28, 2022 at 7:23 PM Tanmay Pani
>> <tanmay.pani.rutgers AT gmail.com> wrote:
>>
>> I have tried to address your concerns and uploaded the new version
>> of the abstract here:
>>
>> https://drupal.star.bnl.gov/STAR/system/files/TP_HP_abstract_v5.pdf
>>
>> Please let me know of any comments or questions
>>
>> Thanks
>>
>> Tanmay
>>
>> On Mon, Nov 28, 2022 at 11:39 AM Barbara Trzeciak
>> <barbara.trzeciak AT gmail.com> wrote:
>>
>> Ok, now I get.
>> Please make it more clear (specific) in the abstract then.
>>
>> Cheers,
>> Barbara
>>
>> On Mon, 28 Nov 2022, 17:37 Tanmay Pani,
>> <tanmay.pani.rutgers AT gmail.com> wrote:
>>
>> Hi Barbara,
>>
>> Differential jet shape is the \rho(r) variable which shows the
>> distribution of charged particle momentum wrt the jet axis. Our
>> postdoc Joel Mazer showed the preliminaries for the uncorrected
>> results in hard probes 2020. Since I joined rutgers in 2020 we have
>> been working on the corrections to that using dijet embedding.
>> Please refer to Joel’s talk from hard probes 2020 (slides 9-12),
>> for further clarification on this analysis:
>>
> https://indico.cern.ch/event/751767/contributions/3771155/attachments/2048465/3432798/HardProbes2020_JetShapeFF_JoelMazer.pdf
>>
>> PtD, lesub and girth variables are a separate analysis that I have
>> taken over this year.
>>
>> I intend to update Hard probes pwg on the differential jet shapes
>> analysis this week.
>>
>> Please let me know if you have any questions or comments
>>
>> Thanks,
>>
>> Tanmay
>>
>> On Mon, Nov 28, 2022 at 11:08 AM Barbara Trzeciak
>> <barbara.trzeciak AT gmail.com> wrote:
>>
>> Hi Tanmay,
>>
>> I'm bit confused. Which differential jet shape observables fully
>> corrected do you promise for both pp and Au+Au ? I thought we're
>> talking here about Girth, p D T and LeSub. But now in one sentence
>> you say fully corrected in both systems, in the next sentence says
>> that the results are fully corrected only in pp.
>>
>> Cheers,
>> Barbara
>>
>> On Sun, Nov 27, 2022 at 8:32 PM Tanmay Pani
>> <tanmay.pani.rutgers AT gmail.com> wrote:
>>
>> Hi Barbara and Nihar,
>>
>> Thanks for your comments. We have the fully corrected results
>> (corrections applied from the dijet embedding) of differential jet
>> shapes ready for both pp and AuAu, which I will be presenting the
>> coming Thursday to hard probes. However for PtD, LeSub and Girth
>> observables I can promise only pp results fully corrected for now,
>> so I have changed the abstract accordingly.  Please have a look at
>> the updated version and let me know of your comments.
>>
>> TP_HP_abstract_v4.pdf [2]
>>
>> Thanks,
>>
>> Tanmay
>>
>> On Sun, Nov 27, 2022 at 10:40 AM Barbara Trzeciak
>> <barbara.trzeciak AT gmail.com> wrote:
>>
>> Hi Tanmay,
>>
>> I would suggest sticking to p+p results.
>> Corrections for Au+Au will be more challenging, and you're still
>> investigating the p+p case.
>> I think it's better to say that you will show some exploratory
>> studies for Au+Au, not to over promise.
>>
>> Cheers,
>> Barbara
>>
>> On Sun, Nov 27, 2022 at 12:29 PM Nihar Sahoo via Star-hp-l
>> <star-hp-l AT lists.bnl.gov> wrote:
>> Hello Tanmay,
>>
>> As we discussed at last HP-pwg meeting,
>> Are you planning to present both pp and AuAu jet shape observables?
>> and do you think it is feasible to prepare both pp and AuAu results
>> in
>> HP2023 timeline?
>>
>> Please let us know that will help us to give a shape your abstract.
>>
>> Thank you
>> Nihar
>>
>> On 2022-11-22 03:03, Tanmay Pani via Star-hp-l wrote:
>>> Dear all,
>>>
>>> Please find my abstract submission for HP2023 here:
>>>
>>>
>> https://drupal.star.bnl.gov/STAR/system/files/TP_HP_abstract_v3.pdf
>>>
>>> Looking forwards to comments and suggestions,
>>>
>>> Tanmay
>>>
>>> On Mon, Nov 21, 2022 at 4:32 PM webmaster--- via Star-hp-l
>>> <star-hp-l AT lists.bnl.gov> wrote:
>>>
>>>> Dear Star-hp-l AT lists.bnl.gov members,
>>>>
>>>> Tanmay Pani (tp543 AT physics.rutgers.edu) has submitted a material
>> for
>>>> a
>>>> review, please have a look:
>>>> https://drupal.star.bnl.gov/STAR/node/61810
>>>>
>>>> Deadline: 2022-12-05
>>>> ---
>>>> If you have any problems with the review process, please contact
>>>> webmaster AT www.star.bnl.gov
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>
>
> Links:
> ------
> [1] https://drupal.star.bnl.gov/STAR/system/files/TP_HP_abstract_v6.pdf
> [2] https://drupal.star.bnl.gov/STAR/system/files/TP_HP_abstract_v4.pdf

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--

Sooraj Radhakrishnan

Research Scientist,

Department of Physics

Kent State University

Kent, OH 44243

Physicist Postdoctoral Affiliate

Nuclear Science Division
Lawrence Berkeley National Lab
MS70R0319, One Cyclotron Road

Berkeley, CA 94720

Ph: 510-495-2473

Email: skradhakrishnan AT lbl.gov

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