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The little skyrmion: new dark matter for little Higgs models

Gillioz, M; von Manteuffel, Andreas; Schwaller, P; Wyler, D (2011). The little skyrmion: new dark matter for little Higgs models. Journal of High Energy Physics, (3):48.

Abstract

We study skyrmions in the littlest Higgs model and discuss their possible role as dark matter candidates. Stable massive skyrmions can exist in the littlest Higgs model also in absence of an exact parity symmetry, since they carry a conserved topological charge due to the non-trivial third homotopy group of the SU(5)/SO(5) coset. We find a spherically symmetric skyrmion solution in this coset. The effects of gauge fields on the skyrmion solutions are analyzed and found to lead to an upper bound on the skyrmion mass. The relic abundance is in agreement with the observed dark matter density for reasonable parameter choices.

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Scopus Subject Areas:Physical Sciences > Nuclear and High Energy Physics
Language:English
Date:March 2011
Deposited On:18 Feb 2012 14:42
Last Modified:05 Jun 2025 01:39
Publisher:Springer
ISSN:1126-6708 (P) 1029-8479 (E)
OA Status:Green
Publisher DOI:https://doi.org/10.1007/JHEP03(2011)048
Related URLs:http://arxiv.org/abs/1012.5288
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