Constraining differential renormalization in abelian gauge theories

Details Constraining differential renormalization in abelian gauge theories Constraining differential renormalization in abelian gauge theories

1997-09-09

arxiv.org/abs/hep-th/9709067v2

Phys.Lett. B419 (1998) 263-271

Physics

High Energy Physics

High Energy Physics - Theory

13 pages, LaTeX. Some equations corrected and a reference added. Complete ps paper also available at http://www-ftae.ugr.es/pa

Scientific paper

10.1016/S0370-2693(97)01279-3

We present a procedure of differential renormalization at the one loop level which avoids introducing unnecessary renormalization constants and automatically preserves abelian gauge invariance. The amplitudes are expressed in terms of a basis of singular functions. The local terms appearing in the renormalization of these functions are determined by requiring consistency with the propagator equation. Previous results in abelian theories, with and without supersymmetry, are discussed in this context.

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