☆ 4.7 Article

Triplet scalar dark matter and leptogenesis in an inverse seesaw model of neutrino mass generation

PHYSICAL REVIEW D (2013)

期刊

PHYSICAL REVIEW D

卷 87, 期 3, 页码 -

出版社

AMER PHYSICAL SOC

DOI: 10.1103/PhysRevD.87.036007

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Astronomy & Astrophysics Physics, Particles & Fields

资金

Fundacao para a Ciencia e a Tecnologia (FCT, Portugal) [PTDC/FIS/098188/2008, CERN/FP/123580/2011]
CFTP-FCT Unit 777
POCTI (FEDER)

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Reagent

摘要

We propose a UV completion of the inverse seesaw scenario using fermion SU(2)(L) triplet representations. Within this framework, a variation of the standard thermal leptogenesis is achievable at the O(TeV) scale, owing to the presence of a viable dark matter candidate. This baryogenesis scenario is ruled out if a triplet fermion is observed at the LHC. The dark matter is given by the lightest neutral component of a complex scalar SU(2)(L) triplet, with mass m(DM) in the TeV range. The scalar sector, which is enriched in order to account for the small neutrino masses, is treated in detail and shows potentially sizable Higgs boson h -> gamma gamma rates together with large h invisible branching ratios. DOI: 10.1103/PhysRevD.87.036007

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