Gauge invariant regularisation in the ERG approach

Details Gauge invariant regularisation in the ERG approach Gauge invariant regularisation in the ERG approach

2001-02-02

arxiv.org/abs/hep-th/0102011v1

Physics

High Energy Physics

High Energy Physics - Theory

Talk given at 15th International Workshop on High-Energy Physics and Quantum Field Theory (QFTHEP 2000), Tver, Russia, 14-20 S

Scientific paper

A gauge invariant regularisation which can be used for non-perturbative treatment of Yang-Mills theories within the exact renormalization group approach is constructed. It consists of a spontaneously broken SU(N|N) super-gauge extension of the initial Yang-Mills action supplied with covariant higher derivatives. We demonstrate that the extended theory in four dimensions is ultra-violet finite perturbatively and argue that it has a sensible limit when the regularisation cutoff is removed.

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