STAR Flow, Chirality and Vorticity PWG

[Xu Sun <xusun AT impcas.ac.cn>]

Hi Sergei,

We have put the comparison between run11 and run14 in the Appendix B of the 
AN v8.02.
Please find the updated version from the following link: 
https://drupal.star.bnl.gov/STAR/system/files/AnalysisNote_phiSpinAlignment_v08_02.pdf

In addition, we have added supplemental material to demonstrate the 
effectiveness of the correction method across all pt bins.

Best,

Xu

> On May 17, 2024, at 01:48, Sergei Voloshin via Star-fcv-l 
> <star-fcv-l AT lists.bnl.gov> wrote:
> 
> Dear all,
> 
> Yesterday, at the FCV meeting,  during the discussion of the spin
> alignment new analyses, some  questions regarding the published
> results were brought up.   In particular the comparison of the results
> obtained for 200 GeV from Run 11 and Run 14. I tried to find those
> results in the Analysis Note, but I did not find anything except that
> the difference was used for an estimate of the systematic error. From
> the same discussion at the meeting, as far as I understood, the Run 11
> results were very far (many sigmas) away from the results of Run 14,
> and even outside of the published systematic error.  I think it is
> very important to document all such cases in the Analysis Note. I
> suggest the PA update (or better append) the AN with the corresponding
> data showing the results for Run11 and Run 14 separately, both for
> centrality, and the transverse momentum dependence.
> It could be also useful to record the reasoning to keep/trust Run 11
> results for other energies in case of 200 GeV results being that far
> from the reported values (outside of the systematic brackets).
> 
> I know that there is some ongoing  discussion on comparing different
> approaches and results on spin alignment from different groups. My
> question/request is not about that. I am only asking to include in the
> AN the important data that was used for publication.
> 
> best regards,
> Sergei
> 
> -- 
> ======================================
> Sergei A. Voloshin
> Distinguished Professor,
> Department of Physics and Astronomy,
> Wayne State University,
> 666 W. Hancock,  Detroit,  Michigan,  48201
> e-mail: sergei.voloshin AT wayne.edu
> ======================================
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