A light neutralino in hybrid models of supersymmetry breaking

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dc.creatorDudas, Emilian
dc.creatorLavignac, Stephane
dc.creatorParmentier, Jeanne
dc.date2008-08-05
dc.date2008-09-08
dc.date.accessioned2026-07-07T11:45:20Z
dc.date.available2026-07-07T11:45:20Z
dc.descriptionWe show that in gauge mediation models where heavy messenger masses are provided by the adjoint Higgs field of an underlying SU(5) theory, a generalized gauge mediation spectrum arises with the characteristic feature of having a neutralino LSP much lighter than in the standard gauge or gravity mediation schemes. This naturally fits in a hybrid scenario where gravity mediation, while subdominant with respect to gauge mediation, provides mu and Bmu parameters of the appropriate size for electroweak symmetry breaking.
dc.description32 pages. v2: revised discussions of the generation of Bmu and of the dark matter constraint; numerous small redactional changes; remarks and references added
dc.identifierhttps://arxiv.org/abs/0808.0562
dc.identifierhttp://arxiv.org/abs/0808.0562
dc.identifierNucl.Phys.B808:237-259,2009
dc.identifierdoi:10.1016/j.nuclphysb.2008.09.023
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/201845
dc.subjectHigh Energy Physics - Phenomenology
dc.titleA light neutralino in hybrid models of supersymmetry breaking
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