Transport properties and Langevin dynamics of heavy quarks and quarkonia in the Quark Gluon Plasma

Abstract

Quark Gluon Plasma transport coefficients for heavy quarks and quark-antiquark pairs are computed through an extension of the results obtained for a hot QED plasma by describing the heavy-quark propagation in the eikonal approximation and by weighting the gauge field configurations with the Hard Thermal Loop effective action. It is shown that such a model allows to correctly reproduce, at leading logarithmic accuracy, the results obtained by other independent approaches. The results are then inserted into a relativistic Langevin equation allowing to follow the evolution of the heavy-quark momentum spectra. Our numerical findings are also compared with the ones obtained in a strongly-coupled scenario, namely with the transport coefficients predicted (though with some limitations and ambiguities) by the AdS/CFT correspondence.

Minor changes. One figure added. Final version accepted for publication by Nucl. Phys. A

References in corpus (14)

• Energy loss of a heavy quark moving through N=4 supersymmetric Yang-Mills plasma
• Energy Loss and Flow of Heavy Quarks in Au+Au Collisions at sqrt(s_NN) = 200 GeV
• Heavy Quark Diffusion in Strongly Coupled $\mathbb{N}=4$ Yang Mills
• State-dependent diffusion: thermodynamic consistency and its path integral formulation
• Nonperturbative Heavy-Quark Diffusion in the Quark-Gluon Plasma
• Real and imaginary-time $Q\bar{Q}$ correlators in a thermal medium
• Towards an understanding of the RHIC single electron data
• Momentum fluctuations of heavy quarks in the gauge-string duality
• Collisional energy loss of a fast heavy quark in a quark-gluon plasma
• Testing AdS/CFT Deviations from pQCD Heavy Quark Energy Loss with Pb+Pb at LHC
• Collisional Energy Loss of Non Asymptotic Jets in a QGP
• Robustness and Infrared Sensitivity of Various Observables in the Application of AdS/CFT to Heavy Ion Collisions
• Collisional Energy Loss of a Fast Muon in a Hot QED Plasma
• Wakes in the quark-gluon plasma

Cited by in corpus (7)

• Heavy-flavour spectra in high energy nucleus-nucleus collisions
• Heavy flavours in heavy-ion collisions: quenching, flow and correlations
• Dynamical collisional energy loss and transport properties of on- and off-shell heavy quarks in vacuum and in the Quark Gluon Plasma
• Probing the transport properties of Quark-Gluon Plasma via heavy-flavor Boltzmann and Langevin dynamics
• Heavy quark dynamics in the QGP: R_AA and v_2 from RHIC to LHC
• Heavy flavours in high-energy nuclear collisions: quenching, flow and correlations
• Heavy-quark Langevin dynamics and single-electron spectra in nucleus-nucleus collision