Gauge Invariant Effective Potentials and Higgs Mass Bounds

Details Gauge Invariant Effective Potentials and Higgs Mass Bounds Gauge Invariant Effective Potentials and Higgs Mass Bounds

1997-04-28

arxiv.org/abs/hep-ph/9704425v2

Phys.Rev. D56 (1997) 3874-3887

Physics

High Energy Physics

High Energy Physics - Phenomenology

30 pages (Latex) plus 5 embedded figures; minor corrections, one reference added

Scientific paper

10.1103/PhysRevD.56.3874

The problem of defining a gauge invariant effective potential with a strict energetic interpretation is examined in the context of spontaneously broken gauge theories. It is shown that such a potential can be defined in terms of a composite gauge invariant order parameter in physical gauges. This effective potential is computed through one loop order in a model with scalars and fermions coupled to an abelian gauge theory, which serves as a simple model of the situation in electroweak theory, where vacuum stability arguments based on the scalar effective potential have been used to place lower bounds on the Higgs mass.

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