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arXiv · 1804.09889

A first survey of the ghost-gluon vertex in the Gribov-Zwanziger framework

B. W. Mintz·L. F. Palhares·S. P. Sorella·A. D. Pereira
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Abstract

As the restriction of the gauge fields to the Gribov region is taken into account, it turns out that the resulting gauge field propagators display a nontrivial infrared behavior, being very close to the ones observed in lattice gauge field theory simulations. In this work, we explore for the first time a higher correlation function in the presence of the Gribov horizon: the ghost-anti-ghost-gluon interaction vertex, at one-loop level. Our analytical results (within the so-called Refined Gribov Zwanziger theory) are fairly compatible with lattice YM simulations, as well as with solutions from the Schwinger-Dyson equations. This is an indication that the RGZ framework can provide a reasonable description in the infrared not only of gauge field propagators, but also of higher correlation functions, such as interaction vertices.

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B. W. Mintz, L. F. Palhares, S. P. Sorella, A. D. Pereira. 2018-04-26. A first survey of the ghost-gluon vertex in the Gribov-Zwanziger framework. https://arxiv.org/abs/1804.09889

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