Form factors in the quark resonance model

Vector and axial form factors in the quark resonance model are analyzed with a combination of theoretical and phenomenological arguments. The new form of form factors is deduced from Delta(1232) excitation models and available data. The vector part is shown to agree with the resonant contribution to electron-proton inclusive F-2 data. The axial part is obtained by finding a simultaneous fit to ANL and BNL d sigma/dQ(2) neutrino scattering data. The best fit corresponds to C-5(A)(0) = 0.88 in the Rarita-Schwinger formalism.