STAR HardProbes PWG

[Helen Caines <helen.caines AT yale.edu>]

Hi Tanmay,

Thanks for the update slides. A few more comments

- Please remove Rutgers from the footers (Its great not he title slides) you are speaking on behalf of STAR.

- I think I am missing something from slide 2-3 You claim that the girth and pTD are specific permutations of the  generalized anglularies but they don’t match. You are missing an R I think in the denominator.

  Also you make a strong point about the  B>0 having quark and gluon discrimination but only the girth variable that you use follows this requirement. Maybe put that definition into the red box too? This would distinguish it from pTD

- Slide 9: I believe both these are published, Please put the journal references

- Slide 10: What is A?

- Slide 13-16: Its your choice but I would present the results in the same order you motivated each variable in the intro.

- Slide 18: I think your statement about too much glue and not enough quark incorrect. As we discussed during the meeting, even if it had 100% quark it still could not match the data. I think the statement is rather that PYTHIA-8 has fragmentation in general incorrect

Helen

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On Mar 24, 2023, at 7:20 AM, Barbara Trzeciak via Star-hp-l <star-hp-l AT lists.bnl.gov> wrote:

Hi Tanmay,

thanks for the update, please see my comments below.

- Change the data to your talks' date

- s5: move "ALICE, JHEP 10 .." text up and the ALICE g plot down, so that all the ALICE plots are in one line

- s10: cpT,trk -> pT,trk

- s11: Analysis TL;DR -> Analysis

Try to shorten the text on this slide, e.g.

After calculating the jet observables, embedding simulation used for deconvoluting detector effects by mapping RECO → GEN -> Deconvoluting detector effects by mapping RECO → GEN using embedding simulation

For p D T , LeSub and Girth, said deconvolution achieved using 2D - Iterative bayesian unfolding of -> p D T , LeSub and Girth: 2D - Iterative bayesian unfolding of

Both deconvolution tactics passes closure tests -> Both deconvolution tactics pass closure tests (and you don't need the rest, put details to the backup)

- s13: move PYTHIA-8 conclusion adobe the plot, use bullets (also on other slides)

- s17, 18: use thicker lines for PYTHIA-8 predictions on pTD, LeSub and g plots, same as you have on the r plots.

- s18: Here we discussed that even pure QJ PYTHIA 8 doesn't describe the shape. Have you compared the PYTHIA 6 and PYTHIA 8 pT distributions so that we can fine tune the conclusions ?

Cheers,

Barbara

On Fri, Mar 24, 2023 at 10:53 AM Tanmay Pani via Star-hp-l <star-hp-l AT lists.bnl.gov> wrote:

Hi Nihar, Barbara and Yi,

Thanks for your nice comments. Here is an updated version. 

HP2023.pdf

After few rehearsal runs, I decided to cut out most of the finer analysis details, as I was routinely clocking in over 20 minutes with those in. 

Thanks,

Tanmay 

On Fri, Mar 24, 2023 at 12:15 AM Yi Yang via Star-hp-l <star-hp-l AT lists.bnl.gov> wrote:

Hi Tanmay,

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

 - p6, p7: Title, Previous measurements from LHC

 - p16, p23: If you don't have enough time, I would move these slides to backup 

Cheers,

Yi

On Wed, Mar 22, 2023 at 5:24 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/63055

Deadline: 2023-03-26
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