Energy Loss Versus Energy Gain of Heavy Quarks in a Hot Medium

Abstract

We study the energy loss and the energy gain of heavy quarks in a hot thermal medium. These include the study of the energy change due to the polarization and to the interaction with the thermal fluctuations of the medium. The dynamics of the heavy quarks with the medium is described by the Wong equations, that allow for the inclusion of both the backreaction on the heavy quarks due to the polarization of the medium, and of the interaction with the thermal fluctuations of the gluon field. Both the momentum as well as the temperature dependence of the energy loss and gain of charm and bottom quark are studied. We find that heavy quark energy gain dominate the energy loss at high-temperature domain achievable at the early stage of the high energy collisions. This finding supports the recently observed heavy quarks results in Glasma and will have a significant impact on heavy quark observables at RHIC and LHC energies.

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Cited by in corpus (10)

• Radial profile of bottom quarks in jets in high-energy nuclear collisions
• Energy loss of a fast moving parton in Gribov-Zwanziger plasma
• Impact of chiral asymmetry and magnetic field on passage of an energetic test parton in a QCD medium
• Energy loss of heavy quarks in the presence of magnetic field
• Anomalous diffusion of the heavy quarks through the fractional Langevin equation
• Study of the heavy quarks energy loss through medium polarization, elastic collision and radiative processes
• Subdiffusion of heavy quark in hot QCD matter by the fractional Langevin equation
• Collective modes in the anisotropic collisional hot QCD medium at finite chemical potential
• Elliptic flow of charm quarks produced in the early stage of pA collisions
• Collective excitations in the hot QCD medium and the propagation of Heavy Quarks