CP violation in the mass matrix of heavy neutrinos

Abstract

We discuss the question of CP-violation in the effective Hamiltonian approach in models of leptogenesis through heavy right handed neutrino decays. We first formulate the problem in four component notation and then point out that before the heavy neutrinos have decayed away, the universe becomes CP-asymmetric in the heavy neutrinos. However, the lepton asymmetry generated after they completely decay are independent of this asymmetry.

9 pages latex file, minor changes

References in corpus (3)

• CP Violation and Baryogenesis due to Heavy Majorana Neutrinos
• Neutrino Masses and Leptogenesis with Heavy Higgs Triplets
• Hybrid Inflation from Supersymmetric SU(5)

Cited by in corpus (5)

• Flavour Covariant Transport Equations: an Application to Resonant Leptogenesis
• Rephasing-invariant CP violating parameters with Majorana neutrinos
• Leptogenesis and Low-energy Observables
• Leptogenesis with Heavy Majorana Neutrinos Reexamined
• CP-violating Majorana phases, lepton-conserving processes and final state interactions