Baryogenesis from dark matter

Abstract

We consider the possibility that some primordial fields decay purely into the dark sector creating asymmetric dark matter. This asymmetry is subsequently transmuted into leptons and baryons. Within this paradigm we compute the amount of asymmetric dark matter created from the out of equilibrium decays of the primordial fields with CP violating Yukawa couplings. The dark matter asymmetry is then transferred to the visible sector by the asymmetry transfer equation and generates an excess of $B-L$. Baryogenesis occurs via sphaleron processes which conserve $B-L$ but violate $B+L$. A mechanism for the annihilation of the symmetric component of dark matter is also discussed. The model leads to multi-component dark matter consisting of both bosonic and fermionic components.

6 pages, 1 figure

References in corpus (6)

• Asymmetric Dark Matter
• Asymmetric Dark Matter from Leptogenesis
• PAMELA Positron Excess as a Signal from the Hidden Sector
• Regenerating a Symmetry in Asymmetric Dark Matter
• Cosmic Coincidence and Asymmetric Dark Matter in a Stueckelberg Extension
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Cited by in corpus (9)

• Asymmetric Dark Matter Models in SO(10)
• Theories relating baryon asymmetry and dark matter: A mini review
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• Implementing Asymmetric Dark Matter and Dark Electroweak Baryogenesis in a Mirror Two-Higgs-Doublet Model
• Asymmetric Self-interacting Dark Matter via Dirac Leptogenesis
• Baryogenesis and Dark Matter in $U(1)$ Extensions
• Gauge-independent Gravitational Waves from Cogenesis in a $B-L$ Conserving Universe
• Filtered Baryogenesis
• Asymmetric dark matter from semi-annihilation: unitarity constraints and long-lived final states