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Heavy flavour production at hadron colliders represents a very promisingfield to test perturbative QCD. The integrated forward-backward asymmetry ofthe top-antitop quark production is particularly sensitive to any deviationfrom the standard QCD calculations. The two Tevatron collaborations, CDF andD0, reported a much larger t-quark charge asymmetry than predicted by thetheory. We show that the QCD in noncontractible space, where the minimaldistance is fixed by weak interactions, enhances the asymmetry by more than afactor of 3 (5) at the parton level in leading order of the coupling for theTevatron (LHC) center of mass energies. This result should not be a surprisesince the asymmetry observable directly explores the far ultraviolet sector ofthe spacelike domain of the Minkowski spacetime.

On the anomalous t-quark charge asymmetry and noncontractibility of the physical space