Quark-lepton asymmetry in the prequark-lepton-symmetric electroweak model

The effects of the nonstandard neutral weak boson suggested by the prequark-lepton-symmetric model based on the electroweak gauge group (SU(2)(l) x x SU(2)(p))(L) x U(1)(Y) are studied in e(+)e(-) annihilation processes. A quark-lepton asymmetry is introduced and an observable defined to quantify a deviation from the universality predicted by the standard model, providing a method to evaluate the mass of the extra boson and a sensitive test of the standard model.