The lightest Higgs mass in supersymmetric models with extra dimensions

Abstract

In the four-dimensional supersymmetric standard model extended with gauge singlets the lightest Higgs boson mass, $M_H$, has an important contribution proportional to the squared of the superpotential coupling $\lambda$ of singlets to Higgs fields, $\lambda S{H}_1\cdot H_2$. The requirement of perturbativity up to the unification scale yields an upper bound on $M_H\sim 140$ GeV. In extensions to theories with (longitudinal) extra dimensions at the TeV where such coupling exists and massive Kaluza-Klein states fall into N=2 representations, if either of the Higgs or singlet fields live in the bulk of the extra dimensions, the $\beta$-function of $\lambda$ is suppressed due to the absence of anomalous dimension of hypermultiplets to leading order. This implies a slower running of $\lambda$ and an enhancement of its low energy value. The $M_H$ upper bound increases to values $M_H\lesssim 165$ GeV.

Latex2e, 11 pages, 1 figure

References in corpus (4)

• Gaugino Mediated Supersymmetry Breaking
• Electroweak and Flavor Physics in Extensions of the Standard Model with Large Extra Dimensions
• Testing the Nature of Kaluza-Klein Excitations at Future Lepton Colliders
• Higher Loop Effects on Unification via Kaluza-Klein Thresholds

Cited by in corpus (6)

• Maximally Natural Supersymmetry
• Supersymmetry and Finite Radiative Electroweak Breaking from an Extra Dimension
• Two-loop Higgs mass in supersymmetric Kaluza-Klein theories
• Discriminating 4D supersymmetry from its 5D warped version
• The lightest Higgs boson mass in effective field theory with bulk and brane supersymmetry breaking
• Adjoint bulk scalars and supersymmetric unification in the presence of extra dimensions