6533b852fe1ef96bd12aad96
RESEARCH PRODUCT
Shining Light on the Scotogenic Model: Interplay of Colliders and Cosmology
Sven BaumholzerAlexander SegnerPedro SchwallerVedran Brdarsubject
Nuclear and High Energy PhysicsParticle physicsCosmology and Nongalactic Astrophysics (astro-ph.CO)Dark matterFOS: Physical sciencesAstrophysics::Cosmology and Extragalactic Astrophysics01 natural sciencesCosmologyHigh Energy Physics - Phenomenology (hep-ph)0103 physical sciencesNeutrino Physicslcsh:Nuclear and particle physics. Atomic energy. Radioactivity010306 general physicsLight dark matterPhysicsLarge Hadron ColliderMissing energy010308 nuclear & particles physicsHot dark matterCosmology of Theories beyond the SMHigh Energy Physics - PhenomenologyBeyond Standard Modellcsh:QC770-798High Energy Physics::ExperimentNeutrinoLeptonAstrophysics - Cosmology and Nongalactic Astrophysicsdescription
In the framework of the scotogenic model, which features radiative generation of neutrino masses, we explore light dark matter scenario. Throughout the paper we chiefly focus on keV-scale dark matter which can be produced either via freeze-in through the decays of the new scalars, or from the decays of next-to-lightest fermionic particle in the spectrum, which is produced through freeze-out. The latter mechanism is required to be suppressed as it typically produces a hot dark matter component. Constraints from BBN are also considered and in combination with the former production mechanism they impose the dark matter to be light. For this scenario we consider signatures at High Luminosity LHC and proposed future hadron and lepton colliders, namely FCC-hh and CLIC, focusing on searches with two leptons and missing energy as a final state. While a potential discovery at High Luminosity LHC is in tension with limits from cosmology, the situation greatly improves for future colliders.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-12-17 |