The heavy top quark and right-handed currents

We consider a modification of the standard electroweak model with the third quark generation and the $\tau$-lepton in vector representations of $SU(2)\otimes U(1)_Y$ electroweak symmetry. This is a new way to implement right-handed currents which are controlled by the usual Fermi constant, $G_F$, the weak mixing angle, $\sin\theta_W$, and also by the right-handed mixing matrices which survive when the Lagrangian density is written in terms of the mass eigenstates. In this case there are also new CP violation phases.