Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2004-02-25
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.
Bowman Patrick Oswald
Heller Urs M.
Leinweber Derek B. .
Parappilly Maria B.
Williams Anthony G.
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