Effects of Extra Dimensions on Unitarity and Higgs Boson Mass

Abstract

We study the unitarity constraint on the two body Higgs boson elastic scattering in the presence of extra dimensions. The contributions from exchange of spin-2 and spin-0 Kaluza-Klein states can have large effect on the partial wave amplitude. Unitarity condition restrict the maximal allowed value for the ratio $r$ of the center of mass energy to the gravity scale to be less than one. Although the constraint on the standard Higgs boson mass for $r$ of order one is considerably relaxed, for small $r$ the constraint is similar to that in the Standard Model. The resulting bound on the Higgs boson mass is not dramatically altered if perturbative calculations are required to be valid up to the maximal allowed value for $r$.

References added, RevTex, 9 pages with two figures

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Cited by in corpus (15)

• Scale of Quantum Gravity
• Testing the Nature of Kaluza-Klein Excitations at Future Lepton Colliders
• Drell-Yan and Diphoton production at Hadron Colliders and Low Scale Gravity Model
• Radiative Symmetry Breaking in Brane Models
• Collider Signals of Gravitational Fixed Points
• Unitarity bounds on low scale quantum gravity
• Model independent sum rules for B-> pi K decays
• The Equivalence Theorem for gauge boson scattering in a five dimensional Standard Model
• Gauge Boson - Gauge Boson Scattering in Theories with Large Extra Dimensions
• TeV Scale Lee-Wick Fields out of Large Extra Dimensional Gravity
• Compton Scattering at the NLC and Large Extra Dimensions
• Higher Curvature Quantum Gravity and Large Extra Dimensions
• Implications of extra dimensions on the effective charge and the beta function in quantum electrodynamics
• Unparticle Effects on Unitarity Constraints from Higgs Boson Scattering
• Direct Signals for Large Extra Dimensions in the Production of Fermion Pairs at Linear Colliders