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arXiv · 2111.03419

Mass-derivative relations for leptogenesis

Tomáš Blažek·Peter Maták
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Abstract

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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Tomáš Blažek, Peter Maták. 2021-11-05. Mass-derivative relations for leptogenesis. https://doi.org/10.1140/epjc%2Fs10052-022-10165-8

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