Baryogenesis from a dark first-order phase transition
E. Hall, Thomas Konstandin, Robert McGehee, Hitoshi Murayama, Géraldine Servant
Abstract
A bstract We present a very minimal model for baryogenesis by a dark first-order phase transition. It employs a new dark SU(2) D gauge group with two doublet Higgs bosons, two lepton doublets, and two singlets. The singlets act as a neutrino portal that transfer the generated asymmetry to the Standard Model. The model predicts ∆ N eff = 0 . 09–0.13 detectable by future experiments as well as possible signals from exotic decays of the Higgs and Z bosons and stochastic gravitational waves.
Topics & Concepts
BaryogenesisPhysicsParticle physicsHiggs bosonNeutrinoBaryon asymmetryStandard Model (mathematical formulation)BosonPhase transitionLeptonDark matterPhysics beyond the Standard ModelLeptogenesisGauge bosonOrder (exchange)Gauge groupGauge (firearms)Nuclear physicsGauge theoryQuantum mechanicsArchaeologyFinanceEconomicsHistoryElectronParticle physics theoretical and experimental studiesCosmology and Gravitation TheoriesBlack Holes and Theoretical Physics