STAR HardProbes PWG

["Ma, Rongrong" <marr AT bnl.gov>]

Hello Isaac

Very nice set of slides to showcase STAR results. 

I have some comments for your consideration. 

- While it is already challenging to highlight 10 talks, still I think it will be good to include at least new preliminary results from posters since yours is the only STAR highlight talk. If we do not highlight them, others won't either. 

slide 2

- not sure if "Zr+Zr, Ru+Ru" in gray is easy to see on a projector

- remove "provides"

slide 5

- text beneath is a bit too small

- "perfectly correlated" points to empty space?

- "Pythia predicts more string-like fragmentation": I thought there is only string-like fragmentation in Pythia, but this statement seems to imply that there are other fragmentation mechanisms. What are they?

- Here HERWIG7 and PTYHIA8 predict basically same r_c values. Given that HERWIG uses clusters while PYTHIA uses strings, does this mean there are something else that dictate r_c values rather than the fragmentation scheme?  

slide 8

- It might be better to show jet dv1/dy vs. pt plot. 

- I do not think our data can rule out possible pT dependence. The statement of "independent of jet p_T" is a bit too strong, especially given that we do not correct for jet p_T. 

slide 9

- I suggest to show the R = 0.4 plot since the effect is supposed to be stronger for larger jets.

- It is important to highlight in the figure and emphasize in the text that this measurement is for jets with pT_raw > 9 GeV/c and pT_cons > 2 GeV/c. The effect could be there if we go to lower jet or consistent pT. 

 

slide 10

- since you focus on radius dependence, maybe remove the left figure to save you some time

- "predict minimal suppression": I think you want to say minimal radius dependence of the suppression

slide 12

- The text size is significantly larger than other slides. Maybe make them consistent

- Consistent with SPS at 17.3 GeV

slide 14

- For the LHC results, are they measured using mid-rapidity J/psi and mid-rapidity multiplicity as we do? If not, it won't be a fair comparison. 

slide 16

- Your conclusions are based on the extracted temperatures. I suggest to make them significantly bigger. 

slide 19

- It might be useful to make it clear that this measurement is w.r.t. the event plane

slide 20

- "First measurements": many other results are also first measurements, or you mean something else?

- How does r_c cleanly separate perturbative and non-perturbative physics?

- Add some qualification to the third bullet

slide 21

- "minimal impact of regeneration at RHIC energies": on slide 12, model calculation shows that about half of the J/psi come from regeneration at 200 GeV. Probably add "below 62.4 GeV"?

- Third bullet does not read like a physics message

Best

Rongrong

On Sep 19, 2024, at 4:01 PM, Mooney, Isaac <isaac.mooney AT yale.edu> wrote:

Hi all,

v2 uploaded now with comments from the STAR practice talk addressed. Will be uploading a v3 with comments from the Yale group implemented as well. Not sure yet of the timescale for that version as I need to prepare for the trip tonight.

Thanks,

Isaac

On Sep 18, 2024, at 22:27, Mooney, Isaac <isaac.mooney AT yale.edu> wrote:

Hi all,

Trimmed version (v1) uploaded now (aesthetics still to be improved).

Thanks,
Isaac

On Sep 18, 2024, at 20:01, Mooney, Isaac <isaac.mooney AT yale.edu> wrote:

Hi all,

This is a rough draft of the talk. The organizers today let us know that the talks in this session are 15’+5’. So I am in the process of significantly trimming down. I’ll upload a new draft when that is done, but wanted to let you see the talk as soon as possible. PS I am aware that the aesthetics are not good right now — I will improve them in a future version.

Thanks,
Isaac

On Sep 18, 2024, at 19:55, webmaster AT star.bnl.gov wrote:

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