STAR HardProbes PWG

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

Hello Isaac

I was asked by the STAR management to take a look at your poster. Here are 
some comments for your consideration: 

ABSTRACT
- Please modify the abstract to better reflect what's shown in the poster. 
For example, you do not show any comparison between short and long path 
lengths. 

MOTIVATION
- The current text is a bit confusing. It reads like that jet-medium 
interaction is influenced by both system geometry and path length. I thought 
what you want to say is jet-medium interaction is affected by path length, 
and we can use system geometry (centrality, event shape engineering, event 
plane angle) to better control the path length and study the path length 
dependence in detail. 
- It will be good to add a bit more introduction to the concept of 
event-shape engineering and eccentricity. 
- The two cartoons above the figure seem to indicate that the nuclear size 
changes from central to peripheral collisions. Is this your intention?

THE STAR EXPERIMENT
- It is a bit weird to introduce event plane angle here since it is not used 
in the results presented in this poster.
- Also, the q2 value shown in the section "EVENT CHARACTERIZATION" is 
calculated within 2.14 < eta < 5.09. Isn't positive eta corresponding to west 
side?

EVENT CHARACTERIZATION
- explain what w_i is
- Right figure
-- Add "Au+Au, \sqrt{s_NN} = 200 GeV"
-- Put y-axis title in one line
- Centrality, q2 correlated -> Centrality and q2 are correlated
- The last bullet is confusing since you do not use \Psi2 and v2 in the 
results

TRACK SPECTRA COMPARISONS
- Title: Track -> Charged-hadron
- It is not clear why using west EPD, instead of the default east EPD, to 
define q2 would assess the uncertainty related to q2 resolution. They could 
be multiple effects, such as decorrelation, fluctuation, EPD resolution, etc, 
affecting the correlation between east and west EPDs.
- Also, I think you should introduce the main results (second bullet) before 
discussing about uncertainties.
- Selecting on -> Select on
- events, compare track spectra -> events, and compare charged-hadron spectra
- What do you mean by "Interplay"? 
- Left figure
-- Add "Au+Au, \sqrt{s_NN} = 200 GeV"
-- Add centrality information
-- x-axis title and label are too small
- Right figure
-- Need a "STAR Preliminary" label
-- Enlarge the y-axis scale a bit since the data points are very close to text
-- y-axis title slightly overlaps with the y-axis label
- You can probably put the third bullet as a sub-bullet of the fourth bullet

CONCLUSIONS
- move "consistent with ALICE4" to the end of the bullet
- The statements "statistical power limits conclusion on high- quenching" and 
"Expected to be minimal by average path length argument" read a bit 
contradictory. On the one hand, we say the effect should be very small, while 
on the other hand we kind of complain that the statistical precision is not 
good enough to see quenching. Actually, why do we expect to see quenching in 
this observable?
- between jets with longer, shorter -> between longer and shorter

Best
Rongrong

> On Aug 24, 2023, at 7:07 PM, webmaster--- via Star-hp-l 
> <star-hp-l AT lists.bnl.gov> wrote:
> 
> Dear Star-hp-l AT lists.bnl.gov members,
> 
> Isaac Mooney (isaac.mooney AT yale.edu) has submitted a material for a review, 
>  
> please have a look:
> https://drupal.star.bnl.gov/STAR/node/64863
> 
> Deadline: 2023-09-03
> ---
> If you have any problems with the review process, please contact  
> webmaster AT www.star.bnl.gov
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