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arXiv · 1309.0020

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

S. M. Barr·Heng-Yu Chen
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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).

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S. M. Barr, Heng-Yu Chen. 2013-09-17. Cogeneration of Dark Matter and Baryons by Non-Standard-Model Sphalerons in Unified Models. https://doi.org/10.1007/jhep10(2013)129

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