Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-03-03
Phys.Rev.Lett.101:101802,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
9 pages, 4 figures
Scientific paper
10.1103/PhysRevLett.101.101802
We consider the fully constrained version of the next-to-minimal supersymmetric extension of the standard model (cNMSSM) in which a singlet Higgs superfield is added to the two doublets that are present in the minimal extension (MSSM). Assuming universal boundary conditions at a high scale for the soft supersymmetry-breaking gaugino, sfermion and Higgs mass parameters as well as for the trilinear interactions, we find that the model is more constrained than the celebrated minimal supergravity model. The phenomenologically viable region in the parameter space of the cNMSSM corresponds to a small value for the universal scalar mass m_0: in this case, one single input parameter is sufficient to describe the phenomenology of the model once the available constraints from collider data and cosmology are imposed. We present the particle spectrum of this very predictive model and discuss how it can be distinguished from the MSSM.
Djouadi Abdelhak
Ellwanger Ulrich
Teixeira Ana M.
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