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

Abstract : 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.
Document type :
Conference papers

http://hal.in2p3.fr/in2p3-00409944
Contributor : Dominique Girod <>
Submitted on : Friday, August 14, 2009 - 2:44:46 PM
Last modification on : Tuesday, March 16, 2021 - 8:32:05 AM

### Identifiers

• HAL Id : in2p3-00409944, version 1
• ARXIV : 0907.4329

### Citation

Pol-Bernard Gossiaux, Joerg Aichelin. Energy Loss of Heavy Quarks in a QGP with a Running Coupling Constant Approach. Quark Matter 2009, Mar 2009, Knoxville, United States. ⟨in2p3-00409944⟩

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