[Brahms-l] Fw: New PHENIX Paper on jet-pair shapes in A+A collisions

From: Flemming Videbaek <videbaek_at_bnl.gov>
Date: Mon, 6 Nov 2006 19:12:22 -0500
FYI
--------------------------------------------
Flemming Videbaek
Physics Department 
Bldg 510-D
Brookhaven National Laboratory
Upton, NY11973


> 
> ----------------------------------------------------------------------------
> ------------------
> 
> TITLE: "System Size and Energy Dependence of Jet-Induced Hadron Pair
> Correlation Shapes
> in Relativistic Nuclear Collisions"
> 
> ABSTRACT: 
> 
> We present azimuthal angle correlations of intermediate transverse momentum
> (1-4 GeV/c)
> hadrons from (di)jets in Cu+Cu and Au+Au collisions at \sqrt{s_{NN}} = 62.4
> and 200 GeV. The away-side (di)jet induced azimuthal correlation is
> broadened, non-Gaussian, and peaked away from \Delta\Phi=\pi in central and
> semi-central collisions in all the systems. The broadening and peak location
> are found to depend upon the number of participants in the collision, but
> not on the collision energy or beam nuclei. These results are consistent
> with sound or shock wave models, but pose challenges to
> Cherenkov gluon radiation models.
>
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Received on Mon Nov 06 2006 - 19:13:30 EST

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