, Volume 52, Issue 1, pp 11-38

Dimensional renormalization and the action principle

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Abstract

Dimensional renormalization is defined in such a way that the renormalized action principle holds. It is shown that this leads to a minimal, additive renormalization. The derivation of Ward-Takahashi indentities and Callan-Symanzik equations from the action principle is exemplified.

Communicated by K. Symanzik