Electrical conductivity and thermal dilepton rate from quenched lattice QCD

Details Electrical conductivity and thermal dilepton rate from quenched lattice QCD Electrical conductivity and thermal dilepton rate from quenched lattice QCD

2011-09-19

arxiv.org/abs/1109.4054v1

Physics

High Energy Physics

High Energy Physics - Lattice

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

Scientific paper

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 $T\simeq 1.45 T_c$ 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.

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