Extended BRS Symmetry and Gauge Independence in On-Shell Renormalization Schemes

Details Extended BRS Symmetry and Gauge Independence in On-Shell Renormalization Schemes Extended BRS Symmetry and Gauge Independence in On-Shell Renormalization Schemes

2000-06-02

arxiv.org/abs/hep-th/0006021v1

Phys.Lett. B485 (2000) 373-378

Physics

High Energy Physics

High Energy Physics - Theory

latex2e, 7 pages, 3 embedded eps figure

Scientific paper

10.1016/S0370-2693(00)00710-3

Extended BRS symmetry is used to prove gauge independence of the fermion
renormalization constant $Z_2$ in on-shell QED renormalization schemes. A
necessary condition for gauge independence of $Z_2$ in on-shell QCD
renormalization schemes is formulated. Satisfying this necessary condition
appears to be problematic at the three-loop level in QCD.

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