Unquenched Gluon Propagator in Landau Gauge

Details Unquenched Gluon Propagator in Landau Gauge Unquenched Gluon Propagator in Landau Gauge

2004-02-25

arxiv.org/abs/hep-lat/0402032v2

Phys.Rev.D70:034509,2004

Physics

High Energy Physics

High Energy Physics - Lattice

4 pages, 5 figures. Latex error fix only

Scientific paper

10.1103/PhysRevD.70.034509

Using lattice quantum chromodynamics (QCD) we perform an unquenched calculation of the gluon propagator in Landau gauge. We use configurations generated with the AsqTad quark action by the MILC collaboration for the dynamical quarks and compare the gluon propagator of quenched QCD (i.e., the pure Yang-Mills gluon propagator) with that of 2+1 flavor QCD. The effects of the dynamical quarks are clearly visible and lead to a significant reduction of the nonperturbative infrared enhancement relative to the quenched case.

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