A light neutralino in hybrid models of supersymmetry breaking

Emilian Dudas; Stéphane Lavignac; Jeanne Parmentier

doi:10.1016/j.nuclphysb.2008.09.023

A light neutralino in hybrid models of supersymmetry breaking

Emilian Dudas
, Stéphane Lavignac
, Jeanne Parmentier

Research output: Contribution to journal › Article › peer-review

Abstract

We 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 μ and Bμ parameters of the appropriate size for electroweak symmetry breaking.

Original language	English
Pages (from-to)	237-259
Number of pages	23
Journal	Nuclear Physics B
Volume	808
Issue number	1-2
DOIs	https://doi.org/10.1016/j.nuclphysb.2008.09.023
Publication status	Published - 11 Feb 2009

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10.1016/j.nuclphysb.2008.09.023

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title = "A light neutralino in hybrid models of supersymmetry breaking",

abstract = "We 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 μ and Bμ parameters of the appropriate size for electroweak symmetry breaking.",

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AU - Lavignac, Stéphane

AU - Parmentier, Jeanne

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N2 - We 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 μ and Bμ parameters of the appropriate size for electroweak symmetry breaking.

AB - We 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 μ and Bμ parameters of the appropriate size for electroweak symmetry breaking.

U2 - 10.1016/j.nuclphysb.2008.09.023

DO - 10.1016/j.nuclphysb.2008.09.023

M3 - Article

AN - SCOPUS:55149114861

SN - 0550-3213

VL - 808

SP - 237

EP - 259

JO - Nuclear Physics B

JF - Nuclear Physics B

IS - 1-2

ER -

A light neutralino in hybrid models of supersymmetry breaking

Abstract

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