Curvature and thermal corrections in tree-level CPT-Violating Leptogenesis

Abstract In a model for leptogenesis based on spontaneous breaking of Lorentz and $$\mathcal {CPT}$$ CPT symmetry [1–3], we examine the consistency of using the approximation of plane-wave solutions for a free spin-$$\frac{1}{2}$$ 12 Dirac (or Majorana) fermion field propagating in a Friedmann–Lema$...

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Bibliographic Details
Main Authors: Nick E. Mavromatos, Sarben Sarkar
Format: Article
Language:English
Published: SpringerOpen 2020-06-01
Series:European Physical Journal C: Particles and Fields
Online Access:http://link.springer.com/article/10.1140/epjc/s10052-020-8109-1