Lepton number violating phenomenology of d = 7 neutrino mass models

A bstract We study the phenomenology of d = 7 1-loop neutrino mass models. All models in this particular class require the existence of several new SU(2) L multiplets, both scalar and fermionic, and thus predict a rich phenomenology at the LHC. The observed neutrino masses and mixings can easily be...

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Bibliographic Details
Published inThe journal of high energy physics Vol. 2018; no. 1; pp. 1 - 24
Main Authors Cepedello, R., Hirsch, M., Helo, J. C.
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.01.2018
Springer Nature B.V
SpringerOpen
Subjects
Beyond Standard Model
Bosons
Classical and Quantum Gravitation
Constraint modelling
Elementary Particles
High energy physics
Leptons
Neutrino Physics
Neutrinos
Phenomenology
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Regular Article - Theoretical Physics
Relativity Theory
Searching
String Theory
Upper bounds
Neutrino Physics
Beyond Standard Model
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Summary:A bstract We study the phenomenology of d = 7 1-loop neutrino mass models. All models in this particular class require the existence of several new SU(2) L multiplets, both scalar and fermionic, and thus predict a rich phenomenology at the LHC. The observed neutrino masses and mixings can easily be fitted in these models. Interestingly, despite the smallness of the observed neutrino masses, some particular lepton number violating (LNV) final states can arise with observable branching ratios. These LNV final states consists of leptons and gauge bosons with high multiplicities, such as 4 l + 4 W , 6 l + 2 W etc. We study current constraints on these models from upper bounds on charged lepton flavour violating decays, existing lepton number conserving searches at the LHC and discuss possible future LNV searches.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP01(2018)009