Salvatore Plumari

Toward a solution to the RAA and v2 puzzle for heavy quarks

The heavy quarks constitutes a unique probe of the quark-gluon plasma properties. Both at RHIC and LHC energies a puzzling relation between the nuclear modification factor

Recent thermodynamic results from lattice QCD analyzed within a quasi-particle model

R_{AA}(p_T)

Shear Viscosity of a strongly interacting system: Green-Kubo vs. Chapman-Enskog and Relaxation Time Approximation

and the elliptic flow

Quark matter in neutron stars within the Nambu-Jona-Lasinio model and confinement

v_2(p_T)

Thermalization, Isotropization and Elliptic Flow from Nonequilibrium Initial Conditions with a Saturation Scale

has been observed which challenged all the existing models, especially for D mesons. We discuss how the temperature dependence of the heavy quark drag coefficient is responsible for a large part of such a puzzle. In particular, we have considered four different models to evaluate the temperature dependence of drag and diffusion coefficients propagating through a quark gluon plasma (QGP). All the four different models are set to reproduce the same

Heavy-flavor in-medium momentum evolution: Langevin versus Boltzmann approach

R_{AA}(p_T)

Elliptic flow from non-equilibrium initial condition with a saturation scale

observed in experiments at RHIC and LHC energy. We point out that for the same

Polyakov Loop and Gluon Quasiparticles in Yang-Mills Thermodynamics

R_{AA}(p_T)

Electric Conductivity from the solution of the Relativistic Boltzmann Equation

one can generate 2-3 times more

Hadron-quark phase transition in asymmetric matter with dynamical quark masses

v_2