University of Pennsylvania
Department of Physics and Astronomy
High Energy Physics Seminar

Abstract

The electroweak program at LEP and elsewhere has confirmed the standard electroweak theory at the 0.1% level, establishing the validity of the gauge principle, the standard model group and representations, and the principles of renormalizable field theory. The standard model parameters are well determined, and the Higgs mass constrained. The data places severe constraints on new physics, strongly favoring decoupling physics (e.g., supersymmetry and unification), over TeV-scale compositeness. Precise gauge couplings provide a possible hint of underlying unification.