Mass-derivative relations and unitarity constraints for $CP$ asymmetries at finite temperature

Abstract

Within the seesaw type-I leptogenesis, we formulate $CPT$ and unitarity constraints for the equilibrium reaction rate $CP$ asymmetries and consider thermal mass and quantum statistics. We demonstrate that including higher-order perturbative corrections in the classical Boltzmann equation remarkably induces quantum effects into the kinetic theory.

arXiv commentAccepted for publication in Journal of Cosmology and Astroparticle Physics

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Cited by in corpus (4)

• Dirac leptogenesis from asymmetry wash-in via scatterings
• Unitarity, real-intermediate states, and fixed-order approach to resonant dark matter annihilation
• Asymmetric dark matter from semi-annihilation: unitarity constraints and long-lived final states
• $CPT$ and unitarity constraints for higher-order $CP$ asymmetries at finite temperature