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RESEARCH PRODUCT
Seesaw Dirac neutrino mass through dimension-six operators
Salvador Centelles-chuliáRahul SrivastavaJosé W. F. Vallesubject
PhysicsParticle physics010308 nuclear & particles physicsDirac (video compression format)High Energy Physics::PhenomenologyDimension (graph theory)Field (mathematics)Lambda01 natural sciencesStandard Model0103 physical sciencesHomogeneous spaceHiggs bosonNeutrino010306 general physicsdescription
In this paper, a follow-up of [S. C. Chuliá, R. Srivastava, and J. W. F. Valle, Phys. Lett. B 781, 122 (2018)], we describe the many pathways to generate Dirac neutrino mass through dimension-six operators. By using only the standard model Higgs doublet in the external legs, one gets a unique operator 1Λ2L¯Φ¯Φ¯ΦνR. In contrast, the presence of new scalars implies new possible field contractions, which greatly increase the number of possibilities. Here, we study in detail the simplest ones, involving SU(2)L singlets, doublets, and triplets. The extra symmetries needed to ensure the Dirac nature of neutrinos can also be responsible for stabilizing dark matter.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-08-07 | Physical Review D |