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arXiv · 1105.3133

Heavy quarks in nucleus-nucleus collisions: from RHIC to LHC

A. Beraudo·W. M. Alberico·A. De Pace·A. Molinari·M. Monteno·M. Nardi·F. Prino
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Abstract

We present a study of the heavy-flavor dynamics in nucleus-nucleus collisions. The initial (hard) production of c and b quarks is taken from NLO pQCD predictions. The presence of a hot medium (a Quark Gluon Plasma described by hydrodynamics) affects the final spectra of open-charm (beauty) hadrons and their decay electrons with respect to what found in pp collisions. The propagation of c and b quarks in the plasma is based on a picture of multiple uncorrelated random collisions, described by a relativistic Langevin equation. A microscopic evaluation of the transport coefficients is provided within a pQCD approach (with proper resummation of medium effects). Results for the final spectra of heavy-flavor hadrons and decay-electrons are given, with particular emphasis on R_AA and v_2.

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A. Beraudo, W. M. Alberico, A. De Pace, A. Molinari, M. Monteno, M. Nardi, F. Prino. 2011-05-16. Heavy quarks in nucleus-nucleus collisions: from RHIC to LHC. https://arxiv.org/abs/1105.3133

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