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arXiv · 1704.04666

Inception of Self-Interacting Dark Matter with Dark Charge Conjugation Symmetry

Ernest Ma
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Abstract

A new understanding of the stability of self-interacting dark matter is pointed out, based on the simplest spontaneously broken Abelian $U(1)$ gauge model with one complex scalar and one Dirac fermion. The key is the imposition of dark charge conjugation symmetry. It allows the possible existence of two stable particles: the Dirac fermion and the vector gauge boson which acts as a light mediator for the former's self-interaction. Since this light mediator does not decay, it avoids the strong cosmological constraints recently obtained for all such models where the light mediator decays into standard-model particles.

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Ernest Ma. 2017-04-15. Inception of Self-Interacting Dark Matter with Dark Charge Conjugation Symmetry. https://doi.org/10.1016/j.physletb.2017.06.067

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