The pinch technique approach to gauge-independent n-point functions

dc.creatorWatson, N. J.
dc.date1999-12-10
dc.date.accessioned2026-07-07T04:09:05Z
dc.date.available2026-07-07T04:09:05Z
dc.descriptionThe pinch technique (PT) is an algorithm for the rearrangement of contributions to conventional, gauge-dependent n-point functions in gauge theories to obtain a formulation of one-loop perturbation theory in terms of ``effective'' n-point functions which, principle among many other desirable properties, are individually entirely independent of the particular gauge-fixing procedure used. The aim of this talk is to give an introductory account of (i) the phenomenological motivations for the PT approach, (ii) the PT algorithm, including the principle properties of the PT n-point functions, (iii) an example application, and (iv) recent progress in extending the PT beyond the one-loop level.
dc.description12 pages, 6 figures. Talk given at the conference ``Physical Variables in Gauge Theories'', Dubna, 21-25 Sept., 1999. To appear in the proceedings
dc.identifierhttps://arxiv.org/abs/hep-ph/9912303
dc.identifierhttp://arxiv.org/abs/hep-ph/9912303
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/49709
dc.subjectHigh Energy Physics - Phenomenology
dc.titleThe pinch technique approach to gauge-independent n-point functions
dc.typetext

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