Mixed Bino-Wino-Higgsino Dark Matter in Gauge Messenger Models

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dc.creatorBae, Kyu Jung
dc.creatorDermisek, Radovan
dc.creatorKim, Hyung Do
dc.creatorKim, Ian-Woo
dc.date2007-02-04
dc.date2007-04-16
dc.date.accessioned2026-07-07T11:22:34Z
dc.date.available2026-07-07T11:22:34Z
dc.descriptionAlmost degenerate bino and wino masses at the weak scale is one of unique features of gauge messenger models. The lightest neutralino is a mixture of bino, wino and higgsino and can produce the correct amount of the dark matter density if it is the lightest supersymmetric particle. Furthermore, as a result of squeezed spectrum of superpartners which is typical for gauge messenger models, various co-annihilation and resonance regions overlap and very often the correct amount of the neutralino relic density is generated as an interplay of several processes. This feature makes the explanation of the observed amount of the dark matter density much less sensitive to fundamental parameters. We calculate the neutralino relic density assuming thermal history and present both spin independent and spin dependent cross sections for the direct detection. We also discuss phenomenological constraints from b to s gamma and muon g-2 and compare results of gauge messenger models to well known results of the mSUGRA scenario.
dc.description27 pages, 9 figures, references added, version to appear at JCAP
dc.identifierhttps://arxiv.org/abs/hep-ph/0702041
dc.identifierhttp://arxiv.org/abs/hep-ph/0702041
dc.identifierJCAP0708:014,2007
dc.identifierdoi:10.1088/1475-7516/2007/08/014
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/194614
dc.subjectHigh Energy Physics - Phenomenology
dc.titleMixed Bino-Wino-Higgsino Dark Matter in Gauge Messenger Models
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