STAR Flow, Chirality and Vorticity PWG

[Chun-Jian Zhang <chun-jian.zhang AT stonybrook.edu>]

Dear Prithwish,

Thank you for the kind comments. Please find the revised  version with implementing all your nice comments at https://drupal.star.bnl.gov/STAR/system/files/WPCF2022_ChunjianZhang.pdf 

Best regards

Chunjian 

On Jul 16, 2022, at 9:13 PM, Prithwish Tribedy via Star-fcv-l <star-fcv-l AT lists.bnl.gov> wrote:

Hi Chunjian,
 I see that you've mistakenly selected "APS meeting" instead of "WPCF". Here are my comments on your nice slides for WPCF:


slide#5:
"Direct indication and well constrain the nuclear deformation"
-->
"Direct indications and well constraints on nuclear deformation"

Slide#7:
These are new results. The conclusion lines are not clear.
Are you trying to say that the linear part (v_2L) of v_4 is not expected to be affected by quadrupole and octupole deformation but the non-linear part (v_NL) can be affected by quadrupole deformation through v_2? Also, v_2 ration depends on a0, R etc. so will the v_4NL. And the current data are consistent with such expectations. Although uncertainties are large to conclude the effect of \beta_2 in v_4NL, the effects of a0 and R0 maybe is conclusive from the data. I don't think any of these are clear from the slide so you have to spend some time during your talk.

How about writing :
v_4L ~ \epsilon (4), no strong dependence on \beta_2 and \beta_3 which affect \epsilon (2) & \epsilon (3), respectively

v_4NL ~ v_2^4 ~ (\epsilon (2))^4, therefore affected by \beta_2, a0 and R.

"Results are consistent with the expectations of hydrodynamic mode coupling of flow harmonics & effects of a0, R0 in non-central collisions"



Slide#8:
"Central collisions reflect the nuclear structure effect but signals near to 0 with large relative statistics"
-->
"SC2,3 show hint of deviation from unity near central collisions as expected from nuclear structure effects -- measurement uncertainties dominate"

Slide#9-13 include results shown before so I don't have any major comments. "Flow-[pT]" --> "Flow - transverse momentum" or "v_n - [pT]" ?

Conclusion:
"The nonmonotonic trend.." --> "The non-monotonic trend with N_ch.."


Best,
Prithwish



On 2022-07-13 00:18, webmaster--- via Star-fcv-l wrote:

Dear star-fcv-l AT lists.bnl.gov members,
ChunJian Zhang (chun-jian.zhang AT stonybrook.edu) has submitted a material for
a review, please have a look:
https://drupal.star.bnl.gov/STAR/node/60262
---
If you have any problems with the review process, please contact
webmaster AT www.star.bnl.gov
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