Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2007-12-21
JHEP 0807:135,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
25 pages, 8 figures. Discussion on models and on cold dark matter constraint extended, references added. Version to appear in
Scientific paper
10.1088/1126-6708/2008/07/135
Finite Unified Theories (FUTs) are N=1 supersymmetric Grand Unified Theories that can be made all-loop finite. The requirement of all-loop finiteness leads to a severe reduction of the free parameters of the theory and, in turn, to a large number of predictions. FUTs are investigated in the context of low-energy phenomenology observables. We present a detailed scanning of the all-loop finite SU(5) FUTs, where we include the theoretical uncertainties at the unification scale and we apply several phenomenological constraints. Taking into account the restrictions from the top and bottom quark masses, we can discriminate between different models. Including further low-energy constraints such as B physics observables, the bound on the lightest Higgs boson mass and the cold dark matter density, we determine the predictions of the allowed parameter space for the Higgs boson sector and the supersymmetric particle spectrum of the selected model.
Heinemeyer Sven
Mondragon Myriam
Zoupanos George
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