Renormalisation of gauge theories using effective Lagrangians, I

Journal Article · Fri Apr 01 04:00:00 EST 1988 · Ann. Phys. (N.Y.); (United States)

DOI:https://doi.org/10.1016/0003-4916(88)90245-X· OSTI ID:6993817

Warr, B J

The renormalisation of field theories is unterstandable in an elegant way in terms of the flow of effective LAgrangians. At distances much larger than some physical cutoff, the physics is described by a small number of parameters, which can be identified purely by dimensional analysis. For scalar theories a rigorous yet simple proof of renormalisability based on this concept was given by Polchinski. For gauge theories there is the extra issue of unitarity of the renormalized S-matrix, which can only be guaranteed by proving renormalised Ward identities, and in this paper we carry this out for the case of non-chiral matter couplings. The second paper in this series extends to chiral theories and to N = 1 supersymmetric Yang-Mills. copyright 1988 Academic Press, Inc.

• Research Organization: California Institute of Technology, Pasadena, California 91125
• OSTI ID: 6993817
• Journal Information: Ann. Phys. (N.Y.); (United States), Journal Name: Ann. Phys. (N.Y.); (United States) Vol. 183:1; ISSN APNYA
• Country of Publication: United States
• Language: English

Related Subjects

645400* -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
DIAGRAMS
ELECTRODYNAMICS
FEYNMAN DIAGRAM
FIELD THEORIES
LAGRANGIAN FIELD THEORY
MATHEMATICAL MODELS
MATRICES
PARTICLE MODELS
PERTURBATION THEORY
QUANTUM ELECTRODYNAMICS
QUANTUM FIELD THEORY
RENORMALIZATION
S MATRIX
SUPERSYMMETRY
SYMMETRY
UNIFIED GAUGE MODELS
UNITARITY
WARD IDENTITY
YANG-MILLS THEORY