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arXiv · 1311.0880

A Family of WISPy Dark Matter Candidates

Joerg Jaeckel
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Abstract

Dark matter made from non-thermally produced bosons can have very low, possibly sub-eV masses. Axions and hidden photons are prominent examples of such "dark" very weakly interacting light (slim) particles (WISPs). A suitable mechanism for their non-thermal production is the misalignment mechanism. Their dominant interaction with Standard Model (SM) particles is via photons. In this note we want to go beyond these standard examples and discuss a wide range of scalar and pseudo-scalar bosons interacting with SM matter fermions via derivative interactions. Suitably light candidates arise naturally as pseudo-Nambu-Goldstone bosons. In particular we are interested in examples, inspired by familons, whose interactions have a non-trivial flavor structure.

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Joerg Jaeckel. 2014-01-10. A Family of WISPy Dark Matter Candidates. https://doi.org/10.1016/j.physletb.2014.03.005

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