Heavy quark dynamics in the QGP: R_AA and v_2 from RHIC to LHC

We study the stochastic dynamics of c and b quarks in the hot plasma produced in nucleus-nucleus collisions at RHIC and LHC, providing results for the nuclear modification factor R_AA and the elliptic flow coefficient v_2 of the single-electron spectra arising from their semi-leptonic decays. The in...

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Detalles Bibliográficos
Autores principales: Alberico, W.M., Beraudo, A., De Pace, A., Molinari, A., Monteno, M., Nardi, M., Prino, F.
Lenguaje:eng
Publicado: 2010
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/j.nuclphysa.2011.02.091
http://cds.cern.ch/record/1304202
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author Alberico, W.M.
Beraudo, A.
De Pace, A.
Molinari, A.
Monteno, M.
Nardi, M.
Prino, F.
author_facet Alberico, W.M.
Beraudo, A.
De Pace, A.
Molinari, A.
Monteno, M.
Nardi, M.
Prino, F.
author_sort Alberico, W.M.
collection CERN
description We study the stochastic dynamics of c and b quarks in the hot plasma produced in nucleus-nucleus collisions at RHIC and LHC, providing results for the nuclear modification factor R_AA and the elliptic flow coefficient v_2 of the single-electron spectra arising from their semi-leptonic decays. The initial QQbar pairs are generated using the POWHEG code, implementing pQCD at NLO. For the propagation in the plasma we develop a relativistic Langevin equation (solved in a medium described by hydrodynamics) whose transport coefficients are evaluated through a first-principle calculation. Finally, at T_c, the heavy quarks are made hadronize and decay into electrons: the resulting spectra are then compared with RHIC results. Predictions for LHC are also attempted.
id cern-1304202
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2010
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spelling cern-13042022023-03-14T17:34:46Zdoi:10.1016/j.nuclphysa.2011.02.091http://cds.cern.ch/record/1304202engAlberico, W.M.Beraudo, A.De Pace, A.Molinari, A.Monteno, M.Nardi, M.Prino, F.Heavy quark dynamics in the QGP: R_AA and v_2 from RHIC to LHCParticle Physics - PhenomenologyWe study the stochastic dynamics of c and b quarks in the hot plasma produced in nucleus-nucleus collisions at RHIC and LHC, providing results for the nuclear modification factor R_AA and the elliptic flow coefficient v_2 of the single-electron spectra arising from their semi-leptonic decays. The initial QQbar pairs are generated using the POWHEG code, implementing pQCD at NLO. For the propagation in the plasma we develop a relativistic Langevin equation (solved in a medium described by hydrodynamics) whose transport coefficients are evaluated through a first-principle calculation. Finally, at T_c, the heavy quarks are made hadronize and decay into electrons: the resulting spectra are then compared with RHIC results. Predictions for LHC are also attempted.We study the stochastic dynamics of c and b quarks in the hot plasma produced in nucleus-nucleus collisions at RHIC and LHC, providing results for the nuclear modification factor R A A and the elliptic flow coefficient v 2 of the single-electron spectra arising from their semi-leptonic decays. The initial Q Q ˆ pairs are generated using the POWHEG code, implementing pQCD at NLO. For the propagation in the plasma we develop a relativistic Langevin equation (solved in a medium described by hydrodynamics) whose transport coefficients are evaluated through a first-principle calculation. Finally, at T c , the heavy quarks are made to hadronize and decay into electrons: the resulting spectra are then compared with RHIC results. Predictions for LHC are also attempted.We study the stochastic dynamics of c and b quarks in the hot plasma produced in nucleus-nucleus collisions at RHIC and LHC, providing results for the nuclear modification factor R_AA and the elliptic flow coefficient v_2 of the single-electron spectra arising from their semi-leptonic decays. The initial QQbar pairs are generated using the POWHEG code, implementing pQCD at NLO. For the propagation in the plasma we develop a relativistic Langevin equation (solved in a medium described by hydrodynamics) whose transport coefficients are evaluated through a first-principle calculation. Finally, at T_c, the heavy quarks are made hadronize and decay into electrons: the resulting spectra are then compared with RHIC results. Predictions for LHC are also attempted.arXiv:1011.0400oai:cds.cern.ch:13042022010-11-02
spellingShingle Particle Physics - Phenomenology
Alberico, W.M.
Beraudo, A.
De Pace, A.
Molinari, A.
Monteno, M.
Nardi, M.
Prino, F.
Heavy quark dynamics in the QGP: R_AA and v_2 from RHIC to LHC
title Heavy quark dynamics in the QGP: R_AA and v_2 from RHIC to LHC
title_full Heavy quark dynamics in the QGP: R_AA and v_2 from RHIC to LHC
title_fullStr Heavy quark dynamics in the QGP: R_AA and v_2 from RHIC to LHC
title_full_unstemmed Heavy quark dynamics in the QGP: R_AA and v_2 from RHIC to LHC
title_short Heavy quark dynamics in the QGP: R_AA and v_2 from RHIC to LHC
title_sort heavy quark dynamics in the qgp: r_aa and v_2 from rhic to lhc
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/j.nuclphysa.2011.02.091
http://cds.cern.ch/record/1304202
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