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Solving the μ problem with a heavy Higgs boson

  • Roberto Franceschini
  • Stefania Gori
Article

Abstract

We discuss the generation of the μ-term in a class of supersymmetric models characterized by a low energy effective superpotential containing a term λSH 1 H 2 with a large coupling λ ∼ 2. These models generically predict a lightest Higgs boson well above the LEP limit of 114 GeV and have been shown to be compatible with the unification of gauge couplings. Here we discuss a specific example where the superpotential has no dimensionful parameters and we point out the relation between the generated μ-term and the mass of the lightest Higgs boson. We discuss the fine-tuning of the model and we find that the generation of a phenomenologically viable μ-term fits very well with a heavy lightest Higgs boson and a low degree of fine-tuning.

We discuss experimental constraints from collider direct searches, precision data, thermal relic dark matter abundance, and WIMP searches finding that the most natural region of the parameter space is still allowed by current experiments. We analyse bounds on the masses of the superpartners coming from Naturalness arguments and discuss the main signatures of the model for the LHC and future WIMP searches.

Keywords

Higgs Physics Beyond Standard Model Supersymmetric Standard Model 

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Copyright information

© SISSA, Trieste, Italy 2011

Authors and Affiliations

  1. 1.Institute de Theorie des Phenomenes PhysiquesEcole Polytechnique Federale de LausanneLausanneSwitzerland
  2. 2.Physik DepartmentTechnische Universität MünchenGarchingGermany
  3. 3.Max-Planck-Institut für Physik (Werner-Heisenberg-Institut)MünchenGermany

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