Leptogenesis and CPT Violation

Abstract

We construct a model in which neutrinos and anti-neutrinos acquire the same mass but slightly different energy dispersion relations.Despite CPT violation, spin-statistics is preserved. We find that leptogenesis can be easily explained within this model, without upsetting the solar, atmospheric and reactor neutrino data. Leptogenesis occurs without lepton number violation and the non-equilibrium condition. We consider only three active Dirac neutrinos, and no new particles or symmetries are introduced.

5 pages, v3: version to appear in PLB with improved discussions

References in corpus (3)

• Event Excess in the MiniBooNE Search for ${\bar{\nu }}_{\mu }\to {\bar{\nu }}_e$ Oscillations
• Perturbative Lorentz and CPT violation for neutrino and antineutrino oscillations
• CPT-odd Leptogenesis

Cited by in corpus (7)

• Neutrinos with Lorentz-violating operators of arbitrary dimension
• Lorentz- and CPT-violating models for neutrino oscillations
• Three-parameter Lorentz-violating texture for neutrino mixing
• Searching for CPT Violation with Neutral-Meson Oscillations
• Lorentz and CPT Violation in Partons
• MINOS Anomaly as A Signal of Lorentz Violation
• Neutrino Phenomenology of gauged L_mu - L_tau: MINOS and beyond