Topological Dark Matter in the Little Higgs Models
High Energy Physics - Phenomenology
2009-11-06 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
We show that certain little Higgs models with symmetry breaking SU(N) -> SO(N) for N >= 4 admit topologically stable solitons that may contribute to cosmological dark matter. We have constructed a spherically symmetric soliton and estimated its mass in the case of SU(5) -> SO(5). Its lower bound is found to be around 10.3 TeV. Whether this particle is a fermion or a boson depends on the value of an integer-valued parameter of the underlying theory, analogous to the number of colors of QCD. In either case, the particle is neutral. If it is a fermion, it is a Majorana particle, which could take part in a seesaw mechanism for neutrino masses.
Cite
@article{arxiv.0905.2772,
title = {Topological Dark Matter in the Little Higgs Models},
author = {Anosh Joseph and S. G. Rajeev},
journal= {arXiv preprint arXiv:0905.2772},
year = {2009}
}
Comments
4 pages, 1 figure; minor numerical error fixed