Two-loop thermal spectral functions with general kinematics
arXiv:1910.07552 · doi:10.1103/PhysRevD.100.116019
Abstract
Spectral functions at finite temperature and two-loop order are investigated, for a medium consisting of massless particles. We consider them in the timelike and spacelike domains, allowing the propagating particles to be any valid combination of bosons and fermions. Divergences (if present) are analytically derived and set aside for the remaining finite part to be calculated numerically. To illustrate the utility of these 'master' functions, we consider transverse and longitudinal parts of the QCD vector channel spectral function.
62 pages, v2: minor fixes and clarifications
References in corpus (5)
- Collisional Energy Loss of a Fast Muon in a Hot QED Plasma
- Low Mass Thermal Dilepton Production at NLO in a Weakly Coupled Quark-Gluon Plasma
- Interpolation of hard and soft dilepton rates
- Ultraviolet asymptotics of scalar and pseudoscalar correlators in hot Yang-Mills theory
- Testing thermal photon and dilepton rates