Non-perturbative parton mass for the gluon

2001/10/15 by O. Philipsen
Physics and Astronomy · #hep-lat

paper · pdf

published as Nucl.Phys.Proc.Suppl. 106 (2002) 242-244 · Lattice2001(spectrum),3 pages, 3 figures

arxiv created 2001/10/15 · arxiv updated 2009/11/30

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)g², while from the bb spectrum one infers m_A≈ 420 MeV for QCD.

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