STAR HardProbes PWG

[Barbara Trzeciak <barbara.trzeciak AT gmail.com>]

Hi Youqi,

nice slides. Please see my comments below.

- s2: I suggest having the SoftDrop condition somewhere, as you mention it on the following slide.

You need to explain to people the SoftDrop first, before you proceed to the Collinear drop, otherwise people who don't know SD will get lost at the beginning.

- s3: I suggest to label the right sketches - the top one corresponds to the collinear drop and the one below to the soft drop

- s3: Observables - since it's a motivation slide and you describe your exact observable later, I would suggest to replace it here with a more general observable: Delta m^2 = Delta m_SD1^2 - Delta m_SD2^2

- s3: Do you need the PYTHIA plot here ? It's nice but the slide is already quite busy, and you would need some time to explain it. 

- s6: Motivation → Method -> Method

- s7: enlarge the soft grooming condition

- s8: move "neutral pT fraction < 0.9" to a separate line

- s10: improve quality of the M equation

- s12: there might be a question here why you exclude the dM = 0 cases. And the 45% fraction is estimated how, from which MC, on true or reco level ? Fraction from the data that you quoted before was 37%.

- s12: pT -> p_T

- s12: since you have some space here, you can add information that the PYTHIA8 Detroit is a new tune, tuned on STAR data.

- s14: dM is not defined

- s15: could you please explain the transition between s14 and 15, and how you're going to connect the two ? 

- s15: add that it agrees with MC

- s15: use a better quality plot

- s16: ~ DGLAP: pQCD - I would add "1/z"

- 16: I wonder if it's not better to show here Monika's zg plot in Rg bins, instead of zg for different splittings. It can show better the different contributions to the first split. 

Also, please use the preliminary version of the figure.

- s14,16: yo show comparisons with PYTHIA8 and HERWIG7, it would be good to comment on this.

Cheers,

Barbara

On Tue, Mar 14, 2023 at 4:13 PM webmaster--- via Star-hp-l <star-hp-l AT lists.bnl.gov> wrote:

Dear Star-hp-l AT lists.bnl.gov members,

Youqi Song (youqi.song AT yale.edu) has submitted a material for a review, 
please have a look:
https://drupal.star.bnl.gov/STAR/node/62961

Deadline: 2023-03-27
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