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

Abstract

We show that the effective running coupling constant, ${\alpha }_{\mathrm{eff}}$, 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.

4 pages, 3 figures - To appear in the conference proceedings for Quark Matter 2009, March 30 - April 4, Knoxville, Tennessee; v2 with larger figures and modified captions

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• Erratum: Transverse momentum and centrality dependence of high-\pt\ non-photonic electron suppression in Au+Au collisions at \sqrtsNN\ = 200 GeV
• Nonperturbative Heavy-Quark Diffusion in the Quark-Gluon Plasma
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Cited by in corpus (7)

• Extraction of Heavy-Flavor Transport Coefficients in QCD Matter
• Collisional processes of on-shell and off-shell heavy quarks in vacuum and in the Quark-Gluon-Plasma
• Cracking the difference of estimating heavy quark transport coefficients in a Quark-Gluon Plasma
• DAB-MOD sensitivity study of heavy flavor $R_{AA}$ and azimuthal anisotropies based on beam energy, initial conditions, hadronization, and suppression mechanisms
• Transverse Momentum Balance and Angular Distribution of $b\bar{b}$ Dijets in Pb+Pb collisions
• Heavy quark scattering and quenching in a QCD medium at finite temperature and chemical potential
• Effect of Coriolis Force on Diffusion of D Meson