Constructing local composite operators for glueball states from a confining Gribov propagator
High Energy Physics - Theory
2011-03-03 v2 High Energy Physics - Lattice
High Energy Physics - Phenomenology
Abstract
The construction of BRST invariant local operators with the quantum numbers of the lightest glueball states, , is worked out by making use of an Euclidean confining renormalizable gauge theory. The correlation functions of these operators are evaluated by employing a confining gluon propagator of the Gribov type and shown to display a spectral representation with positive spectral densities. An attempt to provide a first qualitative analysis of the ratios of the masses of the lightest glueballs is also discussed
Keywords
Cite
@article{arxiv.1009.3062,
title = {Constructing local composite operators for glueball states from a confining Gribov propagator},
author = {M. A. L. Capri and A. J. Gomez and M. S. Guimaraes and V. E. R. Lemes and S. P. Sorella and D. G. Tedesco},
journal= {arXiv preprint arXiv:1009.3062},
year = {2011}
}
Comments
24 pages, 5 figures, version accepted for publication in the European Physical Journal C