@Article{Aguilar_etal2018,
author="Aguilar, A. C.
and Binosi, D.
and Figueiredo, C. T.
and Papavassiliou, J.",
title="Evidence of ghost suppression in gluon mass scale dynamics",
journal="European Physical Journal C",
year="2018",
publisher="Springer",
volume="78",
number="3",
pages="181 - 15pp",
abstract="In this work we study the impact that the ghost sector of pure Yang-Mills theories may have on the generation of a dynamical gauge boson mass scale, which hinges on the appearance of massless poles in the fundamental vertices of the theory, and the subsequent realization of the well-known Schwinger mechanism. The process responsible for the formation of such structures is itself dynamical in nature, and is governed by a set of Bethe-Salpeter type of integral equations. While in previous studies the presence of massless poles was assumed to be exclusively associated with the background-gauge three-gluon vertex, in the present analysis we allow them to appear also in the corresponding ghost-gluon vertex. The full analysis of the resulting Bethe-Salpeter system reveals that the contribution of the poles associated with the ghost-gluon vertex are particularly suppressed, their sole discernible effect being a slight modification in the running of the gluon mass scale, for momenta larger than a few GeV. In addition, we examine the behavior of the (background-gauge) ghost-gluon vertex in the limit of vanishing ghost momentum, and derive the corresponding version of Taylor{\textquoteright}s theorem. These considerations, together with a suitable Ansatz, permit us the full reconstruction of the pole sector of the two vertices involved.",
optnote="WOS:000426838900005",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3515), last updated on Mon, 26 Mar 2018 22:30:34 +0000",
issn="1434-6044",
doi="10.1140/epjc/s10052-018-5679-2",
opturl="http://arxiv.org/abs/1712.06926",
opturl="https://doi.org/10.1140/epjc/s10052-018-5679-2",
archivePrefix="arXiv",
eprint="1712.06926",
language="English"
}