Polarization asymmetries of large-Pt leptons at hadron colliders inE6 theories

Possible observation ofP-odd asymmetries initiated by extra superstring Z′ bosons in longitudinally polarized hadronic collision with inclusive production of high-mass dileptons with large transverse momentum is studied in the QCD lowest order. The polarized asymmetry and polarized forward-backward one of lepton are numerically estimated for variousE6 models. These asymmetries can be used to probe the couplings of a new Z′ boson. Results are presented for the present pp colliders at CERN and FERMILAB.