Resonant leptogenesis and a verifiable seesaw model from large extra dimensions

2010/01/31 by Pei-Hong Gu
Physics and Astronomy · #Black Holes and Theoretical Physics #Dark Matter and Cosmic Phenomena #Higgs boson #Leptogenesis #Lepton #MAJORANA #Neutrino #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Seesaw molecular geometry #hep-ph

paper · pdf · doi:10.1103/physrevd.81.073002

published as Phys.Rev.D81:073002,2010 · 5 pages. More discussions and references. Published in PRD

openalex publication_date 2010/04/14 · arxiv created 2010/04/15 · arxiv updated 2010/04/29 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

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.

Citations

• Radiatively induced leptogenesis in a minimal seesaw model
• Consequences of triplet seesaw for leptogenesis
• Distinguishing seesaw models at LHC with multi-lepton signals
• The Hierarchy Problem and New Dimensions at a Millimeter
• LEPTOGENESIS AS THE ORIGIN OF MATTER
• Neutrino masses in SU(2) ⊗ U(1) theories
• Neutrino masses and the CERN LHC: Testing the type II seesaw mechanism