Gribov ambiguities in the maximal Abelian gauge

AUTOR(ES)

Dudal, D., Capri, M.A.L., Gracey, J.A., Lemes, V.E.R., Sobreiro, R.F., Sorella, S.P., Thibes, R., Verschelde, H.

FONTE

Brazilian Journal of Physics

DATA DE PUBLICAÇÃO

2007-03

RESUMO

The effects of the Gribov copies on the gluon and ghost propagators are investigated in SU(2) Euclidean Yang-Mills theory quantized in the maximal Abelian gauge. By following Gribov's original approach, extended to the maximal Abelian gauge, we are able to show that the diagonal component of the gluon propagator displays the characteristic Gribov type behavior. The off-diagonal component is found to be of the Yukawa type, with a dynamical mass originating from the dimension two gluon condensate, which is also taken into account. Furthermore, the off-diagonal ghost propagator exhibits infrared enhancement. Finally, we make a comparison with available lattice data.

Documentos Relacionados

• Off-diagonal mass generation for Yang-Mills theories in the maximal Abelian gauge
• The infrared behavior of the gluon and ghost propagators in SU(2) Yang-Mills theory in the maximal abelian gauge
• An improved gauge unfixing formalism and the abelian pure chern simons theory
• Aspectos não perturbativos das teorias de Yang-Mills no calibre abeliano maximal
• A local non-Abelian gauge invariant action stemming from the nonlocal operator FmuN(D²)-1FmuN