STAR HardProbes PWG

[Raghav Kunnawalkam Elayavalli <kunnawalkamraghav AT gmail.com>]

Hi Nihar,

Just to push back on the point you raise in slide 2 - the abstract of that paper you linked to in the bottom explicitly says - "non-perturbative effects such as hadronization and the underlying even”. Then in section 6 of the paper, they discuss in detail how doing softdrop makes an observable robust to these effects which one cannot calculate w.r.t the jet which would make something perturbative. So it is absolutely true that "SoftDrop is used to mitigate non-perturbative effects”

Cheers
Raghav 


**************************************
First Name - Raghav 
Last Name - Kunnawalkam Elayavalli
Pronouns - they/them
email - raghav.ke AT vanderbilt.edu 
website - https://www.raghavke.me 

RHIC/AGS UEC member
Assistant Professor of Physics
Stevenson Center 6410
Physics & Astronomy Department
Vanderbilt University 
Nashville, TN 37235-1807
**************************************

On Jun 29, 2023, at 8:16 AM, Nihar Sahoo via Star-hp-l <star-hp-l AT lists.bnl.gov> wrote:

Hello Minika,

Please find my comments on your nice overview slides.

Slide2:

_ "…SoftDrop used …to mitigate non-perturbative effects " -> In fact this statement is not correct. SoftDorp is used to mitigate the effect of ISR, UE and pileup. For a reference, have a look at one of original papers  https://arxiv.org/pdf/1402.2657.pdf

SLide 6and7:
As you discussed in previous slide two corrections methods: RooUnfold and MultiFold
I would suggest to put in Title "RooUnfold Method" or similar.

Slide10:
Title "Motivation" comes abruptly after many slides. Needs to say Motivation for/of what?

Slide12:
"…and more perturbative" -> a vague statement. Mention why you claim this is "perturbative"? Like 1/z trend of AP, DIGLAP…?


SLide18:
In the Lund diagram, mention what is "Δ" ? and relate that with R_g

Slide19:
_"we move from non-perturbative to perturbative region" -> this is again a vague statement. Not sure how do you claim this. Because look at my comment slide#2.



Best
Nihar


On 2023-06-24 06:10, 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/64125
Deadline: 2023-07-03
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