The Ghost-Gluon Vertex in Landau Gauge Yang-Mills Theory
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Possible mechanisms for gluon confinement in Yang-Mills theory in covariant gauges are discussed briefly. Implications for the infrared behavior of the Green's functions are outlined. Results for the gluon and Faddeev-Popov ghost propagators from Dyson-Schwinger studies and lattice calculations are presented. The importance of the ghost-gluon vertex in these studies is discussed. Numerical results for a non-perturbatively constructed ghost-gluon vertex in four and three space-time dimensions are presented.
10 pages, 6 figures, to appear in the proceedings of the International School of Subnuclear Physics, 29 August - 07 September, 2004, Erice, Italy
10 pages, 6 figures, to appear in the proceedings of the International School of Subnuclear Physics, 29 August - 07 September, 2004, Erice, Italy