An alternative NMSSM phenomenology with manifest perturbative unification

Details An alternative NMSSM phenomenology with manifest perturbative unification An alternative NMSSM phenomenology with manifest perturbative unification

2007-12-18

arxiv.org/abs/0712.2903v2

JHEP0803:005,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, 13 figures; v2: possibility of pseudo-Goldstone below 2m_b threshold added, version published by JHEP

Scientific paper

10.1088/1126-6708/2008/03/005

Can supersymmetric models with a moderate stop mass be made consistent with the negative Higgs boson searches at LEP, while keeping perturbative unification manifest? The NMSSM achieves this rather easily, but only if extra matter multiplets filling complete SU(5) representations are present at intermediate energies. As a concrete example which makes use of this feature, we give an analytic description of the phenomenology of a constrained NMSSM close to a Peccei-Quinn symmetry point. The related pseudo-Goldstone boson appears in decays of the Higgs bosons and possibly of the lightest neutralino, and itself decays into (b anti-b) and (tau anti-tau).

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