Extra Dimensions and the Universal Suppression of Higgs Boson Observables at High Energy Colliders

Details Extra Dimensions and the Universal Suppression of Higgs Boson Observables at High Energy Colliders Extra Dimensions and the Universal Suppression of Higgs Boson Observables at High Energy Colliders

2002-05-29

arxiv.org/abs/hep-ph/0205328v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 1 figure, to appear in the Proceedings of The 10th Intl. Conf. on Supersymmetry and Unification of Fundamental Intera

Scientific paper

Precision electroweak data suggests the existence of a light Standard Model Higgs boson. Its width is very narrow by an accident of the fermion mass hierarchies, and so slight perturbations to the theory induce dramatic changes in the phenomenology of direct Higgs boson production. Several theory ideas motivated by low-scale extra dimensions lead to a universal rate suppression of Higgs boson observables. The Tevatron and LHC will have difficulty accruing compelling evidence for small universal suppression of rate observables, and even more difficulty discerning the underlying cause. A high energy e+e- collider would have relatively little trouble.

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