Gluon propagators and the choice of the gauge field in SU(2) theory on   the lattice
  We study numerically magnetic $G_M(p)$ and electric $G_E(p)$ gluon propagators and their dependence on the choice of the lattice gauge field $\caa_{x\mu}$ in SU(2) gauge theory, especially, in the low--momentum limit. We find that two different $\caa_{x\mu}$ definitions are equivalent up to a trivial renormalization of the propagator, at least, in the main approximation. 
I.L. Bogolubsky (JINR, Dubna), V.K. Mitrjushkin (JINR, Dubna)