A Family of WISPy Dark Matter Candidates
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.
Keywords
Cite
@article{arxiv.1311.0880,
title = {A Family of WISPy Dark Matter Candidates},
author = {Joerg Jaeckel},
journal= {arXiv preprint arXiv:1311.0880},
year = {2015}
}
Comments
14 pages, 3 figures. v2 corrected Eq. (3.14)