Speaker
Csaba Török
(Johannes Gutenberg Universität Mainz)
Description
The thermal photon emission rate is determined by the spatially transverse, in-medium spectral function of the electromagnetic current. Accessing the spectral function using Euclidean data is, however, a challenging problem due to the ill-posed nature of inverting the Laplace transform. In this contribution, we present the first results about testing the proposal of directly computing the analytic continuation of the retarded correlator at fixed, vanishing virtuality of the photon via the calculation of the appropriate Euclidean correlator at imaginary spatial momentum. We employ two-flavors of dynamical Wilson fermions at a temperature of 250 MeV.
Primary author
Csaba Török
(Johannes Gutenberg Universität Mainz)
Co-authors
Harvey B. Meyer
(Johannes Gutenberg University Mainz)
Tim Harris
(University of Edinburgh)
Marco Cè
(AEC and ITP, Universität Bern)
Ardit Krasniqi
