Role of the chromomagnetic vacuum background field in e+e--->2 jets and other reactions.

We propose a new type of a measurement which is sensitive to the QCD vacuum color-magnetic fluctuations: a measure of the axial asymmetry of the hadronic final states produced in the high energy ${\mathit{e}}^{+}$${\mathit{e}}^{\mathrm{\ensuremath{-}}}$ collisions which is related to the chromomagnetic vacuum field strength. \textcopyright{} 1996 The American Physical Society.