Renormalization of gauge invariant composite operators in light-cone gauge

Details Renormalization of gauge invariant composite operators in light-cone gauge Renormalization of gauge invariant composite operators in light-cone gauge

1993-08-03

arxiv.org/abs/hep-th/9308006v1

Phys.Rev. D49 (1994) 1067-1076

Physics

High Energy Physics

High Energy Physics - Theory

35100 Padova, Italy DFPD 93/TH/53, July 1993 documentstyle[preprint,aps]{revtex}

Scientific paper

10.1103/PhysRevD.49.1067

We generalize to composite operators concepts and techniques which have been successful in proving renormalization of the effective Action in light-cone gauge. Gauge invariant operators can be grouped into classes, closed under renormalization, which is matrix-wise. In spite of the presence of non-local counterterms, an ``effective" dimensional hierarchy still guarantees that any class is endowed with a finite number of elements. The main result we find is that gauge invariant operators under renormalization mix only among themselves, thanks to the very simple structure of Lee-Ward identities in this gauge, contrary to their behaviour in covariant gauges.

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