Topological Dark Matter in the Little Higgs Models

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.

4 pages, 1 figure; minor numerical error fixed

References in corpus (13)

• Electroweak symmetry breaking from dimensional deconstruction
• The Littlest Higgs
• Knots and Particles
• The Minimal Moose for a Little Higgs
• TeV Symmetry and the Little Hierarchy Problem
• Little Hierarchy, Little Higgses, and a Little Symmetry
• The New Minimal Standard Model
• T Parity and the Littlest Higgs
• Electroweak Precision Constraints on the Littlest Higgs Model with T Parity
• Topological Dark Matter
• Topological Physics of Little Higgs Bosons
• A Texture Bestiary
• Topology in the Little Higgs Models

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• Neutrino phenomenology and stable dark matter with A4
• Partially Composite Dark Matter
• Topological terms in Composite Higgs Models
• Status and Prospects of the Two-Higgs-Doublet SU(6)/Sp(6) little-Higgs Model and the Alignment Limit