Gauge-invariant 4-gluon vertex and its ward identity
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Gauge-invariant 4-gluon vertex and its ward identity

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Gauge-invariant 4-gluon vertex and its ward identity

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dc.contributor.author Papavassiliou, Joannis
dc.date.accessioned 2015-04-10T07:55:57Z
dc.date.available 2015-04-10T07:55:57Z
dc.date.issued 1993
dc.identifier.uri http://hdl.handle.net/10550/42980
dc.description.abstract We use the S-matrix pinch technique to construct at one-loop order a four-gluon vertex for QCD, which is independent of the choice of the gauge parameter, when one or more of the incoming momenta are off shell. We discuss some of the technical subtleties in the application of the pinch technique and show that this vertex satisfies a very simple Ward identity, relating it to a previously constructed gauge-independent three-gluon vertex, also found with the same technique. This analysis serves as a prelude to the construction of an effective potential for QCD, which is gauge-independent order by order in the dressed-loop expansion.
dc.language.iso eng
dc.relation.ispartof Physical Review D, 1993, vol. 47, num. 10, p. 4728-4738
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Papavassiliou, Joannis 1993 Gauge-invariant 4-gluon vertex and its ward identity Physical Review D 47 10 4728 4738
dc.subject Física
dc.title Gauge-invariant 4-gluon vertex and its ward identity
dc.type info:eu-repo/semantics/article
dc.date.updated 2015-04-10T07:55:57Z
dc.identifier.doi http://dx.doi.org/10.1103/PhysRevD.47.4728
dc.identifier.idgrec 091120

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