Nuclear Physics Seminar

"Lattice constraints on the thermal dilepton and photon rate"

Presented by Olaf Kaczmarek, Bielefeld University

Friday, June 17, 2016, 2:00 pm — Small Seminar Room, Bldg. 510

We estimate the dilepton and photon production rate from an SU(3) plasma at temperatures of about 1.1 Tc to 1.5 Tc. Lattice results for the vector current correlator at zero and non-zero momenta are extrapolated to the continuum limit and analyzed with the help of phenomenological and perturbative input for the corresponding spectral
functions. We compare our results with NLO weak-coupling results, hydrodynamics, and a holographic model. At vanishing invariant mass we extract the photon rate which for k>3T is found to be close to the NLO weak-coupling prediction. For k

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