Soft Photon Production Rate in Resummed Perturbation Theory of High Temperature QCD
R. Baier, S. Peigné, D. Schiff
Abstract
We calculate the production rate of soft real photons from a hot quark -- gluon plasma using Braaten -- Pisarski's perturbative resummation method. To leading order in the QCD coupling constant g we find a logarithmically divergent result for photon energies of order gT, where T is the plasma temperature. This divergent behaviour is due to unscreened mass singularities in the effective hard thermal loop vertices in the case of a massless external photon.
Create a lesson
Related papers
Has Quarkyonic Matter Been Seen in Lattice Simulations?
Kohei Fujikura, Kenji Fukushima, Yoshimasa Hidaka et al.
Analytic parametrisations of the scale dependence of proton parton distributions
David F. Rentería-Estrada
DIS-secting the universe with high-energy neutrinos
Rhorry Gauld, Lorenzo Guerra, Ulrich Haisch et al.
Quantum Fourier integration of decay rates at next-to-leading order
David F. Rentería-Estrada
Light Primordial Black Holes from a First-Order Phase Transition near the End of Inflation: Baryogenesis and Gravitational Wave Signatures
Zihong Cheng, Fa Peng Huang
Investigating bottom quark effects in Higgs boson pair production
David Bürg, Gudrun Heinrich, Philipp Rendler