STAR Flow, Chirality and Vorticity PWG

[Roy Lacey <roy.lacey AT stonybrook.edu>]

Evan,

         As you already know, one can measure \Delta\gamma via methods that utilize the Psi2 plane [per your definition] or the three-particle correlator. For the analysis of Hijing events, the three particle correlator is most straightforward, but the results should not differ if one employs Psi2. The talk's results span the same centrality range (0-70%) for AMPT, AVFD, and Hijing, and no attempt was made to tune the Hijing multiplicities to the experimental values.

We have attached the PPT file of the talk that could supplement the recording.

Niseem & Roy

On Fri, Sep 16, 2022 at 4:17 PM Evan Finch via Star-fcv-l <star-fcv-l AT lists.bnl.gov> wrote:

Dear Roy,
Sorry I mostly missed your FCV presentation Wednesday due to teaching and am just now catching up from the recording.

A quick question: for the model comparisons with HIJING and AMPT that you showed, do you calculate delta gamma with respect to the true reaction plane (i.e. taking the event generator reaction plane) or is it done by finding Psi2 “experimentally” in each event ?  I’m surprised that HIJING shows such a good 1/N dependence out to peripheral bins - do you have reasonable statistics in the 1/N = .05 that you could add to the HIJING plot like you did for AMPT?

Thanks,
-Evan
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