Gauge invariant Ansatz for a special three-gluon vertex
NAGIOS: RODERIC FUNCIONANDO

Gauge invariant Ansatz for a special three-gluon vertex

DSpace Repository

Gauge invariant Ansatz for a special three-gluon vertex

Show full item record

View       (269.7Kb)

    
Binosi, Daniele; Papavassiliou, Joannis
This document is a artículoDate2011

Este documento está disponible también en : http://hdl.handle.net/10550/43295
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.

    Binosi, Daniele Papavassiliou, Joannis 2011 Gauge invariant Ansatz for a special three-gluon vertex Journal of High Energy Physics 2011 03 121
http://dx.doi.org/10.1007/JHEP03(2011)121

This item appears in the following Collection(s)

Show full item record

Search DSpace

Advanced Search

Browse

Statistics