Electrical conductivity and thermal dilepton rate from quenched lattice QCD

Abstract

We report on a continuum extrapolation of the vector current correlation function for light valence quarks in the deconfined phase of quenched QCD. This is achieved by performing a systematic analysis of the influence of cut-off effects on light quark meson correlators at $T\simeq 1.45T_c$ using clover improved Wilson fermions. We discuss resulting constraints on the electrical conductivity and the thermal dilepton rate in a quark gluon plasma. In addition new results at 1.2 and 3.0 $T_c$ will be presented.

4 pages, 6 eps figures, to appear in the proceedings of Quark Matter 2011, 23-28 May 2011, Annecy, France

References in corpus (2)

• Modification of the rho meson detected by low-mass electron-positron pairs in central Pb-Au collisions at 158 A GeV/c
• Dielectron continuum production from $\sqrt{s_{NN}}$ = 200 GeV p + p and Au + Au collisions at STAR

Cited by in corpus (4)

• Dilepton rate and quark number susceptibility with the Gribov action
• On the temperature dependence of the electrical conductivity in hot quenched lattice QCD
• Vector meson spectral function and dilepton production rate in a hot and dense medium within an effective QCD approach
• Power corrections to the electromagnetic spectral function and the dilepton rate in QCD plasma within operator product expansion in D=4