6533b828fe1ef96bd1287a5c
RESEARCH PRODUCT
A theory for scotogenic dark matter stabilised by residual gauge symmetry
Oleg PopovOleg PopovRahul SrivastavaJulio LeiteJulio LeiteJosé W. F. Vallesubject
PhysicsNuclear and High Energy PhysicsParticle physics010308 nuclear & particles physicsDark matterElectroweak interactionHigh Energy Physics::PhenomenologyYukawa potentialFOS: Physical sciencesScalar boson01 natural sciencesSymmetry (physics)lcsh:QC1-999Massless particleStandard Model (mathematical formulation)High Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)0103 physical sciences010306 general physicslcsh:PhysicsGauge symmetrydescription
Dark matter stability can result from a residual matter-parity symmetry, following naturally from the spontaneous breaking of the gauge symmetry. Here we explore this idea in the context of the $\mathrm{SU(3)_c \otimes SU(3)_L \otimes U(1)_X \otimes U(1)_{N}}$ electroweak extension of the standard model. The key feature of our new scotogenic dark matter theory is the use of a triplet scalar boson with anti-symmetric Yukawa couplings. This naturally implies that one of the light neutrinos is massless and, as a result, there is a lower bound for the $\rm 0\nu\beta\beta$ decay rate.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-03-01 |