Nonequilibrium meson production in strong fields

摘要

Abstract. We develop a kinetic equation approach to nonequilibrium pion and sigma meson production in a time-dependent, chiral symmetry breaking field (inertial mechanism). We investigate the question to what extent the low-momentum pion enhancement observed in heavyion collisions at CERN - LHC can be addressed within this formalism. In a first step, we consider the inertial mechanism for nonequilibrium production of -mesons and their simultaneous decay into pion pairs for two cases of mass evo.