Baryogenesis via Dark Matter-Induced Symmetry Breaking in the Early Universe

Abstract

We put forward a new proposal for generating the baryon asymmetry of the universe by making use of the dynamics of a $\mathrm{U}(1)$ scalar field coupled to dark matter. High dark matter densities cause the $\mathrm{U}(1)$ symmetry to break spontaneously so that the field acquires a large vacuum expectation value. The symmetry is restored when the density redshifts below a critical value, resulting in the coherent oscillation of the scalar field. A net $B-L$ number can be generated either via baryon number-conserving couplings to the standard model or through small symmetry-violating operators and the subsequent decay of the scalar condensate.

13 pages, 4 figures, updated to reflect published version

References in corpus (8)

• Tidal Tails Test the Equivalence Principle in the Dark Sector
• Galilean Equivalence for Galactic Dark Matter
• End of inflation, oscillons and matter-antimatter asymmetry
• The SUGRA Quintessence Model Coupled to the MSSM
• Radiative Screening of Fifth Forces
• Dark Energy and the MSSM
• Astrophysical Tests of Modified Gravity
• Can the Baryon Asymmetry Arise From Initial Conditions?

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• Quintessential inflation: A tale of emergent and broken symmetries
• Quintessential Affleck-Dine baryogenesis with non-minimal couplings
• Baryogenesis via Gravitational Spontaneous Symmetry Breaking
• More about Q-ball with elliptical orbit
• A Model of Neutrino Mass, Baryon Asymmetry, and Asymmetric Dark Matter with $SU(2{)}_D\otimes U(1{)}_{D^{\prime }}$ Dark Sector