EPJ Web Conf.
Volume 175, 201835th International Symposium on Lattice Field Theory (Lattice 2017)
|Number of page(s)||8|
|Section||12 Vacuum Structure and Confinement|
|Published online||26 March 2018|
On the zero-crossing of the three-gluon Green’s function from lattice simulations
Department of Physics, University of Cyprus, POB 20537, 1678 Nicosia, Cyprus
2 Laboratoire de Physique Théorique (UMR8627), CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91405 Orsay, France
3 Dpto. Sistemas Físicos, Químicos y Naturales, Univ. Pablo de Olavide, 41013 Sevilla ; Spain
4 Dpto. Ciencias Integradas, Fac. Ciencias Experimentales; Universidad de Huelva, 21071 Huelva ; Spain.
5 Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
6 Department of Physics, College of William and Mary, Williamsburg, VA 23187-8795, USA
7 Institute for Theoretical Physics, Universität Heidelberg, Philosophenweg 12, D-69120 Germany
8 CAFPE, Universidad de Granada, E-18071 Granada, Spain
* Speaker, e-mail: firstname.lastname@example.org
Published online: 26 March 2018
We report on some efforts recently made in order to gain a better understanding of some IR properties of the 3-point gluon Green’s function by exploiting results from large-volume quenched lattice simulations. These lattice results have been obtained by using both tree-level Symanzik and the standard Wilson action, in the aim of assessing the possible impact of effects presumably resulting from a particular choice for the discretization of the action. The main resulting feature is the existence of a negative log-aritmic divergence at zero-momentum, which pulls the 3-gluon form factors down at low momenta and, consequently, yields a zero-crossing at a given deep IR momentum. The results can be correctly explained by analyzing the relevant Dyson-Schwinger equations and appropriate truncation schemes.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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