Quantum mechanics of baryogenesis

Abstract

The cosmological baryon asymmetry can be explained as remnant of heavy Majorana neutrino decays in the early universe. We study this out-of-equilibrium process by means of Kadanoff-Baym equations which are solved in a perturbative expansion. To leading order the problem is reduced to solving a set of Boltzmann equations for distribution functions.

Comments: 12 pages, 2 figures, typos corrected. To be published in Physics Letters