Axino Cold Dark Matter Revisited
High Energy Physics - Phenomenology
2015-05-30 v2 Cosmology and Nongalactic Astrophysics
Abstract
Axino arises in supersymmetric versions of axion models and is a natural candidate for cold or warm dark matter. Here we revisit axino dark matter produced thermally and non-thermally in light of recent developments. First we discuss the definition of axino relative to low energy axion one for several KSVZ and DFSZ models of the axion. Then we review and refine the computation of the dominant QCD production in order to avoid unphysical cross-sections and, depending on the model, to include production via SU(2) and U(1) interactions and Yukawa couplings.
Cite
@article{arxiv.1108.2282,
title = {Axino Cold Dark Matter Revisited},
author = {Ki-Young Choi and Laura Covi and Jihn E. Kim and Leszek Roszkowski},
journal= {arXiv preprint arXiv:1108.2282},
year = {2015}
}
Comments
30 pages, 10 figures, version accepted by JHEP