Non-perturbative parton mass for the gluon
High Energy Physics - Lattice
2007-05-23 v1
Abstract
A gauge invariant, non-local observable is constructed in pure gauge theory, which is identical to the gluon propagator in a particular gauge, permitting to define a non-perturbative parton mass for the gluon. This mass can be shown to be related to the 1P-1S mass splitting of heavy quarkonia. Preliminary numerical results for 3d SU(2) yield m_A=0.37(6)g^2, while from the \bar{b}b spectrum one infers m_A\approx 420 MeV for QCD.
Cite
@article{arxiv.hep-lat/0110114,
title = {Non-perturbative parton mass for the gluon},
author = {O. Philipsen},
journal= {arXiv preprint arXiv:hep-lat/0110114},
year = {2007}
}
Comments
Lattice2001(spectrum),3 pages, 3 figures