Pad\'e approximation and glueball mass estimates in 3d and 4d with N_c = 2,3 colors
High Energy Physics - Phenomenology
2015-06-17 v2 High Energy Physics - Lattice
High Energy Physics - Theory
Abstract
A Pad\'e approximation approach, rooted in an infrared moment technique, is employed to provide mass estimates for various glueball states in pure gauge theories. The main input in this analysis are theoretically well-motivated fits to lattice gluon propagator data, which are by now available for both SU(2) and SU(3) in 3 and 4 space-time dimensions. We construct appropriate gauge invariant and Lorentz covariant operators in the (pseudo)scalar and (pseudo)tensor sector. Our estimates compare reasonably well with a variety of lattice sources directly aimed at extracting glueball masses.
Keywords
Cite
@article{arxiv.1310.2016,
title = {Pad\'e approximation and glueball mass estimates in 3d and 4d with N_c = 2,3 colors},
author = {D. Dudal and M. S. Guimaraes and S. P. Sorella},
journal= {arXiv preprint arXiv:1310.2016},
year = {2015}
}
Comments
11 pages, 5 .png figures. v2: extra figure, calculational details and references; improved presentation and title. Version to appear in Phys.Lett.B