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The axial form factor and polarization of the final nucleon in quasi-elastic ν-N scattering

We have calculated the polarization of the final nucleon in charged current quasi-elastic ν-N scattering. We show that the longitudinal and transverse polarizations, as well as their ratio exhibit simple dependence on the axial form factor and their sensitivity to the axial mass is much stronger than that of the cross section. This suggests that measurements of the polarization of the nucleon in the high-statistics neutrino experiments could provide important information on the axial form factor.