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BRS symmetry from renormalization group flow

M. Bonini, M. D'Attanasio, G. Marchesini

hep-tharXiv:hep-th/9412195

Abstract

By using the exact renormalization group formulation we prove perturbatively the Slavnov-Taylor (ST) identities in SU(2) Yang-Mills theory. This results from two properties: locality, i.e. the ST identities are valid if their local part is valid; solvability, i.e. the local part of ST identities is valid if the couplings of the effective action with non-negative dimensions are properly chosen.

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