منابع مشابه
Triviality and the Higgs mass lower bound
In the minimal Standard Model, it is commonly believed that the Higgs mass cannot be too small, otherwise Top quark dynamics makes the Higgs potential unstable. Although this Higgs mass lower bound is relevant for current phenomenology, we show that the Higgs vacuum instability in fact does not exist and only appears when treating incorrectly the cut-off in the renormalization of a trivial theo...
متن کاملFlavor Physics and the Triviality Bound on the Higgs Mass
The 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...
متن کاملTriviality and the Precision Bound on the Higgs Mass
The 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. For a heavy higgs this scale must be relatively low (10 TeV or less). Additional interactions coming from the underlying theory, and suppressed by the scale Λ, give rise to model-dependent corrections to precisely measured e...
متن کاملA Cosmological Lower Bound on the Higgs Boson Mass
Cosmological considerations imply that the Weinberg-Salam Higgs boson mass mH ) 9 GeV. If this bound were violated, the symmetry breaking phase transition would occur only after extreme supercooling, resulting in too high a ratio of entropy to baryon number. Submitted to Physical Review Letters * Work supported by the Department of Energy, Contract DE-AC03-76SF00515. On leave from Cornell Unive...
متن کامل0 v 2 2 1 A ug 1 99 6 Custodial Symmetry and the Triviality Bound on the Higgs Mass
The triviality of the scalar sector of the standard one-doublet Higgs model implies that it is only an effective low-energy theory valid below some cut-off scale Λ. In this note we show that the experimental constraint on the amount of custodial symmetry violation, |∆ρ∗| = α|T | ≤ 0.4%, implies that the scale Λ must be greater than of order 7.5 TeV. For theories defined about the infraredstable...
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 2005
ISSN: 0920-5632
DOI: 10.1016/j.nuclphysbps.2004.11.293