[Brahms-l] Fwd: STAR new paper on high pT J/Psi at RHIC

Begin forwarded message:

>

>
> Subject: STAR new paper on high pT J/Psi at RHIC
>
> Dear Barbara, Wit, Flemming and Steve,
>
> I am pleased to announce that the STAR collaboration will submit to  
> Physical Review Letters, in one week's time,  a new paper on J/Psi  
> production at high transverse momenta in p+p and Cu+Cu collisions at  
> $\sqrt{s_{NN}}$ = 200 GeV. The title and abstract are included below.
>
> Best regards,
>
> Nu Xu
>
>
> =============================================================
>
> Title: "J/Psi production at high transverse momenta in p+p and Cu+Cu  
> collisions at $\sqrt{s_{NN}}$ = 200 GeV"
>
> Abstract: "The STAR collaboration at RHIC presents measurements of J/ 
> Psi -- e+e- at mid-rapidity and high transverse momentum (pT > 5 GeV/ 
> c) in p+p and central Cu+Cu collisions at $\sqrt{s_{NN}}$ = 200 GeV.  
> The inclusive J/Psi production cross section for Cu+Cu collisions is  
> found to be consistent at high pT with the binary collision-scaled  
> cross section for p+p collisions, in contrast to previous  
> measurements at lower pT , where a suppression of J/Psi production  
> is observed relative to the expectation from binary scaling.  
> Azimuthal correlations of J/Psi with charged hadrons in p+p  
> collisions provide an estimate of the contribution of B-meson decays  
> to J/Psi production of 13% +/- 5%."
>

Flemming videbaek
videbaek @ bnl.gov
Brookhaven National Lab
631-344-4106
cell: 631-681-1596



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