6533b7dafe1ef96bd126ed1f

RESEARCH PRODUCT

The simplest scoto-seesaw model: WIMP dark matter phenomenology and Higgs vacuum stability

Rahul SrivastavaSanjoy MandalJosé W. F. Valle

subject

PhysicsNuclear and High Energy PhysicsParticle physics010308 nuclear & particles physicsPhysicsQC1-999Dark matterElectroweak interactionHigh Energy Physics::PhenomenologyFOS: Physical sciencesAstrophysics::Cosmology and Extragalactic Astrophysics01 natural sciencesHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)High Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Seesaw molecular geometryDouble beta decay0103 physical sciencesHiggs bosonNeutrino010306 general physicsNeutrino oscillationPhenomenology (particle physics)

description

We analyze the consistency of electroweak breaking, neutrino and dark matter phenomenology within the simplest scoto-seesaw model. By adding the minimal dark sector to the simplest "missing partner" type-I seesaw one has a physical picture for the neutrino oscillation lengths: the "atmospheric" mass scale arises from the tree-level seesaw, while the "solar" scale is induced radiatively, mediated by the dark sector. We identify parameter regions consistent with theoretical constraints, as well as dark matter relic abundance and direct detection searches. Using two-loop renormalization group equations we explore the stability of the vacuum and the consistency of the underlying dark parity symmetry. One also has a lower bound for the neutrinoless double beta decay amplitude.

10.1016/j.physletb.2021.136458http://www.sciencedirect.com/science/article/pii/S0370269321003981