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

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

2009-07-24

arxiv.org/abs/0907.4329v2

Nucl.Phys.A830:203c-206c,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 3 figures - To appear in the conference proceedings for Quark Matter 2009, March 30 - April 4, Knoxville, Tennessee;

Scientific paper

10.1016/j.nuclphysa.2009.10.015

We show that the effective running coupling constant, $\alpha_{\rm eff}$, and
the effective regulator, $\kappa \tilde{m}_{D}^2$, which we used recently to
calculate the energy loss, $\frac{dE}{dx}$, and the elliptic flow, $v_2$, of
heavy quarks in an expanding quark gluon plasma plasma (QGP) are compatible
with lattice results and with recently advanced analytical pQCD calculation.

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