K. Amemiya et H. Suganuma, Effective mass generation of off-diagonal gluons and Abelian dominance in the maximally Abelian gauge in QCD, NUCL PH B-P, 83-4, 2000, pp. 419-421
We study the properties of gluons in QCD in the maximally abelian (MA) gaug
e. In the MA gauge, the off-diagonal gluon behaves as the massive vector bo
son with the mass M-off similar or equal to 1.2 GeV, and therefore the off-
diagonal gluon cannot carry the long-range interaction for r much greater t
han M-off(-1) similar or equal to 0.2 fm. The essence of the infrared abeli
an dominance in the MA gauge is physically explained with the generation of
the off-diagonal gluon mass M-off similar or equal to 1.2 GeV induced by t
he MA gauge fixing, and the off-diagonal gluon mass generation would predic
t general infrared abelian dominance in QCD in the MA gauge. We report also
the off-diagonal gluon propagator at finite temperature.