Planck-scale effects on WIMP dark matter
High Energy Physics - Phenomenology
2013-12-24 v3 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
There exists a widely known conjecture that gravitational effects violate global symmetries. We study the effect of global-symmetry violating higher-dimension operators induced by Planck-scale physics on the properties of WIMP dark matter. Using an effective description, we show that the lifetime of the WIMP dark matter candidate can satisfy cosmological bounds under reasonable assumptions regarding the strength of the dimension-five operators. On the other hand, the indirect WIMP dark matter detection signal is significantly enhanced due to new decay channels.
Cite
@article{arxiv.1204.2576,
title = {Planck-scale effects on WIMP dark matter},
author = {M. S. Boucenna and R. A. Lineros and J. W. F. Valle},
journal= {arXiv preprint arXiv:1204.2576},
year = {2013}
}
Comments
12 pages, 4 figures. Version accepted for publication in Frontiers