Flavor Physics and the Triviality Bound on the Higgs Mass

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dc.creatorChivukula, R. S.
dc.creatorDobrescu, B. A.
dc.creatorSimmons, E. H.
dc.date1997-02-25
dc.date1997-03-20
dc.date.accessioned2026-07-07T12:03:20Z
dc.date.available2026-07-07T12:03:20Z
dc.descriptionThe triviality of the scalar sector of the standard one-doublet Higgs model implies that this model is only an effective low-energy theory valid below some cut-off scale $Λ$. The underlying high-energy theory must include flavor dynamics at a scale of order $Λ$ or greater in order to give rise to the different Yukawa couplings of the Higgs to ordinary fermions. This flavor dynamics will generically produce flavor-changing neutral currents and non-universal corrections to Z -> b b-bar. We show that the experimental constraints on the neutral D-meson mass difference imply that $Λ$ must be greater than of order 21 TeV. We also discuss bounds on $Λ$ from the constraints on extra contributions to the K_L - K_S mass difference and to the coupling of the Z boson to b-quarks. For theories defined about the infrared-stable Gaussian fixed-point, we estimate that this lower bound on $Λ$ yields an upper bound of approximately 460 GeV on the Higgs boson's mass, independent of the regulator chosen to define the theory.
dc.description11 pages, 2 embedded figures, LaTeX; references and discussion of CP violation added
dc.identifierhttps://arxiv.org/abs/hep-ph/9702416
dc.identifierhttp://arxiv.org/abs/hep-ph/9702416
dc.identifierPhys.Lett.B401:74-80,1997
dc.identifierdoi:10.1016/S0370-2693(97)00387-0
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/207748
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Lattice
dc.titleFlavor Physics and the Triviality Bound on the Higgs Mass
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