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Gauge invariant Ansatz for a special three-gluon vertex

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Gauge invariant Ansatz for a special three-gluon vertex

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dc.contributor.author Binosi, Daniele
dc.contributor.author Papavassiliou, Joannis
dc.date.accessioned 2015-04-23T07:48:24Z
dc.date.available 2015-04-23T07:48:24Z
dc.date.issued 2011
dc.identifier.citation Binosi, Daniele Papavassiliou, Joannis 2011 Gauge invariant Ansatz for a special three-gluon vertex Journal of High Energy Physics 2011 03 121
dc.identifier.uri http://hdl.handle.net/10550/43295
dc.description.abstract We construct a general Ansatz for the three-particle vertex describing the interaction of one background and two quantum gluons, by simultaneously solving the Ward and Slavnov-Taylor identities it satisfies. This vertex is known to be essential for the gauge-invariant truncation of the Schwinger-Dyson equations of QCD, based on the pinch technique and the background field method. A key step in this construction is the formal derivation of a set of crucial constraints (shown to be valid to all orders), relating the various form factors of the ghost Green's functions appearing in the aforementioned Slavnov-Taylor identity. When inserted into the Schwinger-Dyson equation for the gluon propagator, this vertex gives rise to a number of highly non-trivial cancellations, which are absolutely indispensable for the self-consistency of the entire approach.
dc.language.iso eng
dc.relation.ispartof Journal of High Energy Physics, 2011, vol. 2011, num. 03, p. 121
dc.subject Física
dc.title Gauge invariant Ansatz for a special three-gluon vertex
dc.type journal article es_ES
dc.date.updated 2015-04-23T07:48:24Z
dc.identifier.doi 10.1007/JHEP03(2011)121
dc.identifier.idgrec 070794
dc.rights.accessRights open access es_ES

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