Two loop effective potential for < A^2_μ> in the Landau gauge in quantum chromodynamics
arXiv:hep-th/0306200 · doi:10.1088/1126-6708/2003/11/029
Abstract
We construct the effective potential for the dimension two composite operator 1/2 A^{a 2}_μin QCD with massless quarks in the Landau gauge for an arbitrary colour group at two loops. For SU(3) we show that an estimate for the effective gluon mass decreases as N_f increases.
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