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arXiv · 1001.1340

Resonant Leptogenesis and Verifiable Seesaw from Large Extra Dimensions

Pei-Hong Gu
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Abstract

In the presence of large extra dimensions, the fundamental scale could be as low as a few TeV. This yields leptogenesis and seesaw at a TeV scale. Phenomenologically two TeV-scale Majorana fermions with a small mass split can realize a resonant leptogenesis whereas a TeV-scale Higgs triplet with a small trilinear coupling to the standard model Higgs doublet can give a verifiable seesaw. We propose an interesting scenario where the small parameters for the resonant leptogenesis and the type-II seesaw can be simultaneously generated by the propagation of lepton number violation from distant branes to our world.

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Pei-Hong Gu. 2010-01-08. Resonant Leptogenesis and Verifiable Seesaw from Large Extra Dimensions. https://doi.org/10.1103/physrevd.81.073002

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