Unified dark matter with intermediate symmetry breaking scales

Abstract

Asymmetric symmetry breaking models dynamically break the G X G gauge symmetries of mirror models to distinct subgroups in the two sectors. The coincidental abundances of visible and dark matter, ${\Omega }_{DM}\simeq 5{\Omega }_{VM}$, motivates asymmetric dark matter theories where similar number densities of baryons in each sector are explained by their connected origins. However the question of why the baryons of two sectors should have similar mass remains. In this work we develop an alternative class of asymmetric symmetry breaking models which unify the dark and visible sectors while generating a small difference in the mass scale of the baryons of each sector. By examining the different paths that the SO(10) GUT group can take in breaking to gauge symmetries containing SU(3) we can adapt the mechanism of asymmetric symmetry breaking to demonstrate models in which originally unified visible and dark sectors have isomorphic color gauge groups at low energy yet pass through different intermediate gauge groups at high energy. Through this, slight differences in the running coupling evolutions and thus the confinement scales of the two sectors are generated.

arXiv comment15 pages, 5 figures. Revised version to match published version in Phys. Rev. D. References added

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Cited by in corpus (9)

• Glueball scattering cross section in lattice SU(2) Yang-Mills theory
• Asymmetric Dark Matter and the hadronic spectra of hidden QCD
• Comprehensive asymmetric dark matter model
• Implementing Asymmetric Dark Matter and Dark Electroweak Baryogenesis in a Mirror Two-Higgs-Doublet Model
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• A Closer Look in the Mirror: Reflections on the Matter/Dark Matter Coincidence
• Dark Unification: a UV-complete Theory of Asymmetric Dark Matter
• Unified Dark Matter from a Simple Gauge Group on a Domain-Wall Brane