Triviality and stability in effective theories

Details Triviality and stability in effective theories Triviality and stability in effective theories

2001-10-29

arxiv.org/abs/hep-ph/0110380v1

JHEP, PRHEP-hep2001/147

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk presented at the HEP2001 conference 5 pages, 3 figures. Requires JHEP3.cls (available at http://jhep.sissa.it/JOURNAL/tex

Scientific paper

In this talk we consider the modifications induced by heavy physics on the triviality and vacuum stability bounds on the Higgs-boson mass. We parameterize the heavy interactions using an effective Lagrangian and find that the triviality bound is essentially unaffected for weakly-coupled heavy physics. In contrast there are significant modifications in the stability bound that for a light Higgs boson require a scale of new physics of the order of a few TeV.

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