Mass-derivative relations for leptogenesis

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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Cited by in corpus (7)

• Mass-derivative relations and unitarity constraints for $CP$ asymmetries at finite temperature
• Modifying the Dyson Series for Unstable Particles and Resonances
• Unitarity, real-intermediate states, and fixed-order approach to resonant dark matter annihilation
• Cutting rules and positivity in finite temperature many-body theory
• Asymmetric dark matter from semi-annihilation: unitarity constraints and long-lived final states
• Cutting rules on a cylinder and simplified diagrammatic approach to $CP$ violation in quantum kinetic theory
• $CPT$ and unitarity constraints for higher-order $CP$ asymmetries at finite temperature