[Brahms-l] Fw: New PHENIX paper on dihadron correlations in Au+Au

Dear Collaborator,

another Phenix paper

flemming

Subject: New PHENIX paper on dihadron correlations in Au+Au


> Dear Tim, Wit, Flemming and Peter,
> 
> I am happy to announce that in one week's time the PHENIX Collaboration
> will submit a paper to Phys. Rev. Letters on the transverse momentum
> and centrality dependence of dihadron correlations in Au+Au collisions .
> Please find the title and abstract below.
> 
> Best regards,
> Barbara
> 
> ----------------------------------------------------------------------------
> 
> TITLE:
> Transverse momentum and centrality dependence of dihadron
> correlations in Au+Au collisions at \sqrt{s}_NN = 200 GeV : jet
> quenching and the response of partonic matter
> 
> ABSTRACT:
> Azimuthal angle (\Delta\phi) correlations are presented for charged
> hadrons from dijets for 0.4 < pT <10 GeV/c in Au+Au collisions at
> \sqrt{s}_NN = 200 GeV. With increasing pT , the away-side distribution
> evolves from a broad to a concave shape, then to a convex shape.
> Comparisons to p+p data suggestthat the away-side can be divided
> into a partially suppressed "head" region centered at \Delta\phi ~ \pi
> and an enhanced "shoulder" region centered at \Delta\phi ~ 1:1. The
> pT spectrum for the "head" region softens toward central collisions,
> consistent with the onset of jet quenching. The spectral slope for the
> "shoulder" region is independent of centrality and trigger pT , which
> offers constraints on energy transport mechanisms and suggests
> that the "shoulder" region contains the medium response to energetic
> jets.
>
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