Back-to-back correlations of high p_T hadrons in relativistic heavy ion collisions

Details Back-to-back correlations of high p_T hadrons in relativistic heavy ion collisions Back-to-back correlations of high p_T hadrons in relativistic heavy ion collisions

2003-01-12

arxiv.org/abs/nucl-th/0301042v2

Phys.Rev.Lett. 91 (2003) 082301

Physics

Nuclear Physics

Nuclear Theory

4 pages, 4 figures; version to appear in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.91.082301

We investigate the suppression factor and the azimuthal correlation function for high $p_T$ hadrons in central Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV by using a dynamical model in which hydrodynamics is combined with explicitly traveling jets. We study the effects of parton energy loss in a hot medium, intrinsic $k_T$ of partons in a nucleus, and $p_{\perp}$ broadening of jets on the back-to-back correlations of high $p_T$ hadrons. Parton energy loss is found to be a dominant effect on the reduction of the away-side peaks in the correlation function.

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