Energy Loss of Heavy Quarks in a QGP with a Running Coupling Constant Approach

摘要

We show that the effective running coupling constant, αeff, and the effective regulator, κm 2 D,which we used recently to calculate the energy loss, dE dx , and the elliptic flow, v2, of heavy quarks in an expanding quark gluon plasma plasma (QGP) [1] are compatible with lattice results and with recently advanced analytical pQCD calculation.