  Heavy flavour production at hadron colliders represents a very promising
field to test perturbative QCD. The integrated forward-backward asymmetry of
the top-antitop quark production is particularly sensitive to any deviation
from the standard QCD calculations. The two Tevatron collaborations, CDF and
D0, reported a much larger t-quark charge asymmetry than predicted by the
theory. We show that the QCD in noncontractible space, where the minimal
distance is fixed by weak interactions, enhances the asymmetry by more than a
factor of 3 (5) at the parton level in leading order of the coupling for the
Tevatron (LHC) center of mass energies. This result should not be a surprise
since the asymmetry observable directly explores the far ultraviolet sector of
the spacelike domain of the Minkowski spacetime.
