STAR HardProbes PWG

[Sooraj Radhakrishnan <skradhakrishnan AT lbl.gov>]

Hi Andrew,

   Are you referring to the plots of S9/10 as performance plots? From your S15, comparing PYTHIA and GEANT, the detector effects seem to be small. So I have a concern that we will be in effect showing the data as preliminary results. I believe you are not ready to release the results without the systematics and unfolding done. So I would suggest not to show data points for the energy correlator, rather some other performance plots that would indicate your progress and STAR's ability to do the measurements. Let me know what you think

thanks

Sooraj

On Tue, Oct 18, 2022 at 12:29 PM Nihar Sahoo <nihar AT rcf.rhic.bnl.gov> wrote:

Hello Tamis,

It is a good study on this new observable.
AFA Pythia study is concern, I don't have any comments.
I have some minor comments on your data analysis slides.

_ Before SLide14, you could introduce STAR detector system and what are
the detectors you plan to use for your measurement? A short intro is
sufficient.

Slide14:
_ pp Run12 -> pp sqrt(s)=200 GeV (year 2012)
_Trigger - JP2 -> As no one know what is JP2, so it would be good to
mention "Jet patch trigger" (here 2 is not necessary for outside world
as you describe details about this trigger in sub-bullet)
_ Constituent PT ->  Constituent Transverse momentum, p_{T}
_Official Embedding, PYTHIA 6  -> PYTHIA6+STAR Géant simulation

Slide15:
_ Please include "pp sqrt(s) =200 GeV" as legend
_ Detector level data retains trends in jet momentum selection ->
Detector level data retains trends in jet p_{T} selection

Slide16:
_Interesting behavior in response to pT cuts -> PYTHIA6 simulation: EEC
shows a dependence on jet p_{T}
_Robust to pT-independent tracking efficiency effects -> should we say
this a "robust" or "mild" "negligible" pT-dependent ?
    We have not checked yet with pT-dependent tracking efficiency.
(Slide13)
_ last two bullets "Detector-Level measurement done in STAR p+p run 12 
and Unfolding in progress " I would just say combining "First
measurement of ECC in pp sqrt(s)=200 GeV is in progress in STAR"


Cheers
Nihar

On 2022-10-17 23:00, Andrew Tamis via Star-hp-l wrote:
> Hi Sooraj,
>
> I think I would like to show the PYTHIA results and performance plots
> and hold off on a preliminary request until I get farther along with
> unfolding.  Do you mean that I should show the performance plots of
> detector level data without the comparison to PYTHIA/Geant?
>
> Best,
> Andrew
>
> On Mon, Oct 17, 2022 at 8:59 AM Sooraj Radhakrishnan via Star-hp-l
> <star-hp-l AT lists.bnl.gov> wrote:
>
>> Hi Andrew,
>> Thanks for preparing these nice slides. Since you show detector
>> level and generator level PYTHIA distribution are quite similar, I
>> wonder if the results should be labelled STAR Preliminary, as they
>> can be argued to be close to the physics results. Do you want to
>> show the data also at DNP or just the PYTHIA results and give some
>> performance plots for data?
>>
>> thanks
>> Sooraj
>>
>> On Mon, Oct 17, 2022 at 6:27 AM webmaster--- via Star-hp-l
>> <star-hp-l AT lists.bnl.gov> wrote:
>>
>>> Dear Star-hp-l AT lists.bnl.gov members,
>>>
>>> Andrew Tamis (andrew.tamis AT yale.edu) has submitted a material for
>>> a review,
>>> please have a look:
>>> https://drupal.star.bnl.gov/STAR/node/61351
>>>
>>> Deadline: 2022-10-27
>>> ---
>>> If you have any problems with the review process, please contact
>>> webmaster AT www.star.bnl.gov
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>>
>> --
>>
>> Sooraj Radhakrishnan
>>
>> Research Scientist,
>> Department of Physics
>>
>> Kent State University
>> Kent, OH 44243
>>
>> Physicist Postdoctoral AffiliateNuclear Science Division
>> Lawrence Berkeley National Lab
>> MS70R0319, One Cyclotron Road
>> Berkeley, CA 94720
>> Ph: 510-495-2473 [1]
>>
>> Email: skradhakrishnan AT lbl.gov
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>
>
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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