Loops and legs beyond perturbation theory

Abstract

Within the non-perturbative 1/N expansion, we discuss numerical methods for calculating multi-loop Feynman graph needed to derive physical scattering amplitudes. We apply higher order 1/N methods to the scalar sector of the standard model, and show the existence of a mass saturation effect. The mass saturation has direct implications for future searches at the LHC and at possible muon colliders.

Talk presented at the Loops and Legs in Quantum Field Theory 2000 meeting

References in corpus (4)

• Differences Between the Pole and On-Shell Masses and Widths of the Higgs Boson
• Mass and Width of a Heavy Higgs Boson
• New developments in the 1/N expansion and nonperturbative Higgs physics
• Higgs mass saturation effect and the LHC discovery potential