Comment on "Dirac leptogenesis via scatterings"

TL;DR

This paper critiques a recent leptogenesis model, arguing that its calculations violate fundamental principles of perturbative quantum field theory, thus questioning its validity.

Contribution

The authors provide a critical analysis of a recent leptogenesis model, highlighting fundamental theoretical inconsistencies in its calculation methods.

Findings

Identifies violations of quantum field theory principles in the model's calculations

Questions the validity of the proposed leptogenesis mechanism

Highlights the importance of adhering to fundamental theoretical principles

Abstract

In their recent letter, Heeck et al. [Phys. Rev. D 108, L031703] introduced a simple model of leptogenesis, in which the asymmetry originates from the scattering processes only. Here we argue that their calculation violates some of the basic principles of perturbative quantum field theory.