Light thermal relics enabled by a second Higgs

Light thermal relics enabled by a second Higgs

Blog Article

Sub-GeV thermal relic dark matter typically requires the existence of a light mediator particle.We introduce Pedal Axle the light two-Higgs-doublet portal, illustrated by a minimal UV-complete model for sub-GeV dark matter with kinematically forbidden annihilations into leptons.All new physics states in this scenario lie at or below the electroweak scale, affecting Higgs Outdoor Multi-use Table physics, the muon anomalous magnetic moment and potentially neutrino masses.

Observation of radiative dark matter annihilation by future MeV gamma-ray telescopes would be key to unambiguously identify the scenario.