STAR Flow, Chirality and Vorticity PWG

[dshen <dshen AT rcf.rhic.bnl.gov>]

Dear Conveners,

Here are our preliminary request for J/Psi spin alignment measurement 
relative to 1st order ZDC event plane.
https://drupal.star.bnl.gov/STAR/system/files/JPsiPreliminaryRequest.pdf

Thanks,
Diyu

On 2023-08-23 14:24, Sooraj Radhakrishnan via Star-fcv-l wrote:
> Hi Gavin,
>    These are nice results and quite interesting. I have a question on
> the rapidity dependence. The observed rapidity dependence is quite
> strong, and also the value of rho_00 for y < 0.5 is quite close to
> 1/3. I see that for efficiency correction you use a flat distribution
> in rapidity. At these energies is this a reasonable distribution to
> use? Do you have any systematics on the impact of the rapidity
> distribution used on efficiency evaluation?
>
> For the theory calculation, is this the same model as in the nature
> paper? Could you add the reference? Are there any assumptions in
> getting the rapidity dependence? Why wouldnt we see the spin-alignment
> at mid-rapidity, and see large values at forward rapidity? Shouldn't
> the physics causing spin alignment be present at mid-rapidity too? I
> see on your S33 the explanation that the values are linked to motion
> of the particle. Is this a trivial kinematic effect? The px, py, pz
> here are in lab frame?
>
> thanks
> Sooraj
>
> On Thu, Aug 17, 2023 at 9:06 PM Gavin Wilks via Star-fcv-l
> <star-fcv-l AT lists.bnl.gov> wrote:
>
> > Dear FCV Convenors,
> >
> > My preliminary request for QM2023 φ-meson global spin alignment
> > analysis can be found here:
> https://drupal.star.bnl.gov/STAR/system/files/userfiles/6551/PreliminaryRequest_QM2023_FoldedRapidity.pdf
> > Best,
> > Gavin_______________________________________________
> > Star-fcv-l mailing list
> > Star-fcv-l AT lists.bnl.gov
> > https://lists.bnl.gov/mailman/listinfo/star-fcv-l
>
> --
>
> Sooraj Radhakrishnan
>
> Research Scientist,
> Department of Physics
>
> Kent State University
>  Kent, OH 44243
>
> Physicist Postdoctoral AffiliateNuclear Science Division
> Lawrence Berkeley National Lab
> MS70R0319, One Cyclotron Road
> Berkeley, CA 94720
> Ph: 510-495-2473 [1]
>
> Email: skradhakrishnan AT lbl.gov
>
>
> Links:
> ------
> [1] tel:%28510%29%20495-2473
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