Regular Article - Theoretical Physics
Mass-derivative relations for leptogenesis
Department of Theoretical Physics, Comenius University in Bratislava, Mlynská dolina, 84248, Bratislava, Slovak Republic
Accepted: 24 February 2022
Published online: 10 March 2022
In this work, a diagrammatic representation of thermal mass effects is derived from the S-matrix unitarity both in the classical and quantum Boltzmann equations. Within the example of the seesaw type-I leptogenesis, we discuss the connection of the Higgs thermal mass and the cancelations of infrared divergences in zero- and finite-temperature calculations of the right-handed neutrino decay and scattering processes.
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