Electromagnetic leptogenesis at the TeV scale

Abstract

We construct an explicit model implementing electromagnetic leptogenesis. In a simple extension of the Standard Model, a discrete symmetry forbids the usual decays of the right-handed neutrinos, while allowing for an effective coupling between the left-handed and right-handed neutrinos through the electromagnetic dipole moment. This generates correct leptogenesis with resonant enhancement and also the required neutrino mass via a TeV scale seesaw mechanism. The model is consistent with low energy phenomenology and would have distinct signals in the next generation colliders, and, perhaps even the LHC.

14 pages, 2 eps figures

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• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Likelihoods and Parameters from the WMAP data
• Leptogenesis
• New limit on the lepton-flavour violating decay mu -> e gamma
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• Electromagnetic Leptogenesis
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Cited by in corpus (3)

• Kadanoff-Baym approach to the thermal resonant leptogenesis
• Coherent Flavour Oscillation and CP Violating Parameter in Thermal Resonant Leptogenesis
• Electromagnetic Leptogenesis -- an EFT-Consistent Analysis via Wilson Coefficients. Part I. Low-Scale, Non-Resonant Regime