Off-shell Ward identities for N-gluon amplitudes
Off-shell Ward identities for N-gluon amplitudes
Abstract
Off-shell Ward identities in non-abelian gauge theory continue to be a subject of active research, since they are, in general, inhomogeneous and their form depends on the chosen gauge-fixing procedure. For the three-gluon and four-gluon vertices, it is known that a relatively simple form of the Ward identity can be achieved using the pinch technique or, equivalently, the background-field method with quantum Feynman gauge. The latter is also the gauge-fixing underlying the string-inspired formalism, and here we use this formalism to derive the corresponding form of the Ward identity for the one-loop N - gluon amplitudes.
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WWW-Beitrag
arXiv:2001.00885: https://arxiv.org/abs/2001.00885 -
EPL - Europhysics Letters 130(2020), 41001
DOI: 10.1209/0295-5075/130/41001
ISSN: 1286-4854
Cited 4 times in Scopus
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Permalink: https://www.hzdr.de/publications/Publ-30361