Solving the little hierarchy problem with a singlet and explicit μ terms.
We present a generalization of the next-to-minimal supersymmetric standard model, with an explicit μ term and a supersymmetric mass for the singlet superfield, as a route to alleviating the little hierarchy problem of the minimal supersymmetric standard model (MSSM). Though this model does not address the μ problem of the MSSM, we are able to generate masses for the lightest neutral Higgs boson up to 140 GeV with top squarks below the TeV scale, all couplings perturbative to the gauge unification scale, and with no need to fine-tune parameters in the scalar potential. This model more closely resembles the MSSM phenomenologically than the canonical next-to-minimal supersymmetric standard model.
Delgado
Antonio
A
Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA.
Kolda
Christopher
C
Olson
J Pocahontas
JP
de la Puente
Alejandro
A