The Infrared Behavior of QCD Green's Functions

By R. Alkofer, L. Smekal. 2000

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A dynamical gluon mass solution in a coupled system of the Schwinger-Dyson equations (2004, methodology): “[4] that we want to solve, following the same steps performed in ref.”
Nonperturbative Faddeev-Popov formula and the infrared limit of QCD (2003, background): “In fact the properties that result from the restriction to Ω, in particular the positivity of the weight P (A) and of the Faddeev-Popov operator M(A), dictate the natural choice of solution of the DS equation, that has been implemented previously, without necessarily invoking explicitly the cut-off ”
What's up with IR gluon and ghost propagators in Landau gauge? A puzzling answer from huge lattices (2007, background): “From the analytic point of view, it may seem necessary to reco nsider partially the conventional confinement scenarios [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12] disc ussed in the Introduction.”
Nonperturbative Landau gauge and infrared critical exponents in QCD (2001, methodology): “In the latter part of the present article we solve the SchwingerDyson equations in the non-perturbative Landau gauge to obtain the infrared critical ex- ponents or anomalous dimensions of the gluon and ghost propagators D(k) and G(k) in d = 2, 3 and 4 space-time dimensions.”