Return of the Light Higgsino
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
It is pointed out that loop corrections involving heavy quarks and their superpartners can re-introduce a state with 99.5% higgsino purity as a viable cold Dark Matter candidate. Such corrections can increase the mass splitting between the three higgsino-like states of the MSSM by several GeV, which results in a suppression of the co-annihilation rate by a factor of five or more. Related corrections to the couplings of the LSP to and Higgs bosons can change the predicted LSP detection rate by two orders of magnitude.
Keywords
Cite
@article{arxiv.hep-ph/9701318,
title = {Return of the Light Higgsino},
author = {Manuel Drees},
journal= {arXiv preprint arXiv:hep-ph/9701318},
year = {2007}
}
Comments
5 pages of LaTeX with axodraw.sty and epsfig.sty, 3 figures (included); talk presented at the International RESCEU symposium on Dark Matter and its Direct Detection, Tokyo, November 26-28, 1996