Non-perturbative production rate of photons with a lattice quark propagator: effect of vertex correction

2016/10/24 by Kim, Taekwang, Asakawa, Masayuki, Kitazawa, Masakiyo
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Nuclear Theory (nucl-th)

paper · doi:10.48550/arxiv.1610.07296

Abstract

We analyze the production rate of photons from the thermal medium above the deconfinement temperature with a quark propagator obtained from a lattice QCD numerical simulation. The photon-quark vertex is determined gauge-invariantly, so as to satisfy the Ward-Takahashi identity. The obtained photon production rate shows a suppression compared to perturbative results.

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