Cogeneration of Dark Matter and Baryons by Non-Standard-Model Sphalerons in Unified Models

Abstract

Sphalerons of a new gauge interaction can convert a primordial asymmetry in B or L into a dark matter asymmetry. From the equilibrium conditions for the sphalerons of both the electroweak and the new interactions, one can compute the ratios of B, L, and X, where X is the dark matter number, thus determining the mass of the dark matter particle fairly precisely. Such a scenario can arise naturally in the context of unification with larger groups. An illustrative model embeddable in $SU(6)\times SU(2)\subset E_6$ is described as well as an equally simple model based on SU(7).

13 pages. Revised introduction and references, changed title

References in corpus (6)

• Asymmetric Dark Matter
• Darkogenesis
• Aidnogenesis via Leptogenesis and Dark Sphalerons
• A Unified Theory of Matter Genesis: Asymmetric Freeze-In
• Leptogenesis origin of Dirac gaugino dark matter
• Rephasing invariance and the neutrino mu-tau symmetry

Cited by in corpus (7)

• Theories relating baryon asymmetry and dark matter: A mini review
• Grand unified hidden-sector dark matter
• Sphalerons and the Electroweak Phase Transition in Models with Higher Scalar Representations
• Unified dark matter with intermediate symmetry breaking scales
• Comparable Dark Matter and Baryon energy densities from Dark Grand Unification
• Cogenerating and Pre-annihilating Dark Matter by a New Gauge Interaction in a Unified Model
• Filtered Baryogenesis