STAR Flow, Chirality and Vorticity PWG

["Tang, Aihong" <aihong AT bnl.gov>]

Hi CW,

I'd like to follow up on your presentation from Wednesday (May 2nd).

In your "true" phi decay combinatorial, you simulated a set of real phi with realistic pt spectra and v2, and then allowed them to decay. Now instead of rotating a daughter in the transverse plane, you used mixed events. However, I'm curious about how you maintain the realistic pt spectra for the "true" phi in this approach. From my perspective, while the rotation distorts rho_00, using mixed events distorts the pt spectra.

It's worth noting that the small correction you obtained at 200 GeV cannot necessarily be used to justify the correctness of the procedure itself. Corrections tend to be small at 200 GeV anyway, regardless of the method chosen.

Additionally, as I see it, when I commenting on the rotation, you used mixed events, and when I questioning why the correction involved multiplication, you switched to subtraction without providing justification for taking a such change. This raises an important point I wanted to emphasize: this procedure needs a bottom-up derivation to back up its rationale behind each step, as a well-defined procedure should indeed be just that --- well defined. It cannot rely on arbitrary assumptions or guesswork.

Thanks,

Aihong

On May 1, 2024, at 12:13 PM, Robertson, Charles William via Star-fcv-l <star-fcv-l AT lists.bnl.gov> wrote:

Hello,

My slides for today can be found here: https://drupal.star.bnl.gov/STAR/system/files/SpinAlignmentFCV050124_1.pdf

Thank you,

-CW

---

From: Star-fcv-l <star-fcv-l-bounces AT lists.bnl.gov> on behalf of Zhengxi Yan via Star-fcv-l <star-fcv-l AT lists.bnl.gov>
Sent: Wednesday, May 1, 2024 12:06 PM
To: STAR Flow, Chirality and Vorticity PWG <star-fcv-l AT lists.bnl.gov>
Cc: Zhengxi Yan <zhengxi1yan AT gmail.com>
Subject: Re: [Star-fcv-l] FCV PWG meeting on 01/May/2024 Wed. 9:30 AM EDT

 

---- External Email: Use caution with attachments, links, or sharing data ----

Hi All,

Slides for today are in the link below.

https://drupal.star.bnl.gov/STAR/blog/zyan/dAu-two-particle-correlation

Best,

Zhengxi

On Tue, Apr 30, 2024 at 6:11 PM Zhengxi Yan <zhengxi1yan AT gmail.com> wrote:

Dear Subhash and all,

I would like to present "2-Particle Correlation in d+Au at 200 GeV".

If time permits, please add me to the agenda. 

Best,

Zhengxi

On Sun, Apr 28, 2024 at 11:11 PM subhash via Star-fcv-l <star-fcv-l AT lists.bnl.gov> wrote:

Dear All,

We shall have our weekly FCV PWG meeting this Wednesday (01/May/2024) at 
9:30 AM EDT. If you wish to present please let us know. The agenda will 
be collected at: https://drupal.star.bnl.gov/STAR/blog/jjiastar/bulkcorr
Please send us your slides by Tuesday. Zoom details are copied below.


Please take a note of the STAR internal deadlines for CPOD and SQM. 
Presenters are requested to give regular updates in the PWG.
      - CPOD presentations due to PWG by May 6. New preliminary approvals 
should be this week of April 29
      - SQM presentations due to PWG by May 20. New preliminary approvals 
should happen the week of May 13
If you are requesting new STAR preliminary results, you should prepare 
supporting materials following: 
https://drupal.star.bnl.gov/STAR/system/files/Prelim_Request_template.pdf

      - STAR internal deadline for submitting abstracts for HP 2024 to 
the PWGs is May 11

Thanks and regards,
Prithwish, Zhenyu and Subhash


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