The N–Δ weak axial-vector form factor C5A(0) Original Research Article

The form factor C5A(0) present in the weak N–Δ axial-vector transition amplitude 〈Δ|Aπμ|N〉—important in describing lepton-induced Δ production processes—is calculated using a broken symmetry algebraic approach to QCD without using the hypothesis of partial conservation of axial-vector currents and without using unbroken symmetry models such as SU(6).