Dark and visible matter with broken R-parity and the axion multiplet
High Energy Physics - Phenomenology
2015-05-27 v3 Cosmology and Nongalactic Astrophysics
Abstract
A small breaking of R-parity reconciles thermal leptogenesis, gravitino dark matter and primordial nucleosynthesis. We find that the same breaking relaxes cosmological bounds on the axion multiplet. Naturally expected spectra become allowed and bounds from late particle decays become so weak that they are superseded by bounds from non-thermal axion production. In this sense, the strong CP problem serves as an additional motivation for broken R-parity.
Keywords
Cite
@article{arxiv.1103.6193,
title = {Dark and visible matter with broken R-parity and the axion multiplet},
author = {Jasper Hasenkamp and Jörn Kersten},
journal= {arXiv preprint arXiv:1103.6193},
year = {2015}
}
Comments
13 pages + refs, 1 table, v2: refs added, minor changes in presentation, v3: refs added, added discussion of decays into Higgs and Higgsino, matches published version