The propagation of the heavy quarks produced in relativistic nucleus–nucleus collisions at RHIC and LHC is studied within the framework of Langevin dynamics in the background of an expanding deconfined medium described by ideal and viscous hydrodynamics. The transport coefficients entering into the relativistic Langevin equation are evaluated by matching the hard-thermal-loop result for soft collisions with a perturbative QCD calculation for hard scatterings. The heavy-quark spectra thus obtained are employed to compute the differential cross sections, the nuclear modification factors R AA and the elliptic-flow coefficients v 2 of electrons from heavy-flavor decay.

Heavy-flavour spectra in high energy nucleus-nucleus collisions

ALBERICO, Wanda Maria;BERAUDO, ANDREA;MOLINARI, Alfredo;NARDI, Marzia;
2011-01-01

Abstract

The propagation of the heavy quarks produced in relativistic nucleus–nucleus collisions at RHIC and LHC is studied within the framework of Langevin dynamics in the background of an expanding deconfined medium described by ideal and viscous hydrodynamics. The transport coefficients entering into the relativistic Langevin equation are evaluated by matching the hard-thermal-loop result for soft collisions with a perturbative QCD calculation for hard scatterings. The heavy-quark spectra thus obtained are employed to compute the differential cross sections, the nuclear modification factors R AA and the elliptic-flow coefficients v 2 of electrons from heavy-flavor decay.
2011
71
1666
1687
http://www.springerlink.com/content/b64h16281412756m/
Heavy ion collisions; heavy quarks; quark gluon plasma
W.M. Alberico; A. Beraudo; A. De Pace; A. Molinari; M. Monteno; M. Nardi; F. Prino
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/98185
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