Asymmetric Dark Matter May Not Be Light

Abstract

It is often said that asymmetric dark matter is light compared to typical weakly interacting massive particles. Here we point out a simple scheme with a neutrino portal and $\mathcal{O}(60\text{ GeV})$ asymmetric dark matter which may be ''added'' to any standard baryogenesis scenario. The dark sector contains a copy of the Standard Model gauge group, as well as (at least) one matter family, Higgs, and right-handed neutrino. After baryogenesis, some lepton asymmetry is transferred to the dark sector through the neutrino portal where dark sphalerons convert it into a dark baryon asymmetry. Dark hadrons form asymmetric dark matter and may be directly detected due to the vector portal. Surprisingly, even dark anti-neutrons may be directly detected if they have a sizeable electric dipole moment. The dark photons visibly decay at current and future experiments which probe complementary parameter space to dark matter direct detection searches. Exotic Higgs decays are excellent signals at future $e^{+}{e}^{-}$ Higgs factories.

8 pages, 3 figures

References in corpus (12)

• Measurement of the fine-structure constant as a test of the Standard Model
• Asymmetric Dark Matter
• The Sphaleron Rate in the Minimal Standard Model
• Stellar cooling bounds on new light particles: plasma mixing effects
• Search for $A^{\prime }\to {\mu }^{+}{\mu }^{-}$ decays
• Cosmological Constraints on Very Dark Photons
• Minimal Mirror Twin Higgs
• Effects of non-standard neutrino-electron interactions on relic neutrino decoupling
• The Sphaleron Rate through the Electroweak Cross-over
• Making the Universe at 20 MeV
• Long Live the Higgs Factory: Higgs Decays to Long-Lived Particles at Future Lepton Colliders
• Split NMSSM with electroweak baryogenesis

Cited by in corpus (17)

• Electroweak Phase Transition and Gravitational Waves in the Type-II Seesaw Model
• The $Z_7$ model of three-component scalar dark matter
• Dark matter produced from right-handed neutrinos
• Asymmetric dark matter with a spontaneously broken $U(1{)}^{\prime }$: self-interaction and gravitational waves
• Measuring lepton number violation in heavy neutral lepton decays at the future muon collider
• Perturbative Unitarity of Strongly Interacting Massive Particle Models
• Time-delayed neutrino emission from supernovae as a probe of dark matter-neutrino interactions
• Revealing Dark Matter's Role in Neutron Stars Anisotropy: A Bayesian Approach Using Multi-messenger Observations
• $U(1)$-charged Dark Matter in three-Higgs-doublet models
• Dark Vector Mesons at LHC Forward Detector Searches
• Asymmetries in Extended Dark Sectors: A Cogenesis Scenario
• Dynamical origin of neutrino masses and dark matter from a new confining sector
• Genesis of baryon and dark matter asymmetries through ultraviolet scattering freeze-in
• Composite asymmetric dark matter with a dark photon portal: Multimessenger tests
• Asymgenesis
• A viable U(1) extended Standard Model with a massive Z' invoking the Stueckelberg mechanism
• Study of gravitational waves from phase transitions in three-component dark matter