Lepton-Baryon Resonances and Duality in Weak Processes

In a previous paper,1> we proposed the theory of duality for weak interactions and studied the process v + n~ tr + p by using the Veneziano model, in which the trp resonance (T boson) recently observed by the CERN group2> was considered to lie on a Regge trajectory ar(s). In the present letter we assume also an existence of a p!n resonance, i.e., u-channel resonance (we call this the T' boson), lying on a Regge trajectory ar' (u), and introduce it into the previous model. Then, we can show that a new model reduces the energy dependence of quantities corresponding to the vector and axial-vector form factors to be much smaller than that in the previous model. Let us write the scattering amplitude for the process vn~p.-p as