Determination of the axial nucleon form factor from the MiniBooNE data

Abstract

Both neutrino and antineutrino charged-current quasi-elastic scattering on a carbon target are studied to investigate the nuclear effect on the determination of the axial form factor F_A(Q^2). A method for extraction of F_A(Q^2) from the flux-integrated $d\sigma /d{Q}^2$ cross section of (anti)neutrino scattering on nuclei is presented. Data from the MiniBooNE experiment are analyzed in the relativistic distorted-wave impulse approximation, Fermi gas model, and in the Fermi gas model with enhancements in the transverse cross section. We found that the values of the axial form factor, extracted in the impulse approximation and predicted by the dipole approximation with the axial mass M_A~1.37 GeV are in good agreement. On the other hand, the Q^2-dependence of F_A extracted in the approach with the transverse enhancement is found to differ significantly from the dipole approximation.

23 pages, 8 figures. arXiv admin note: text overlap with arXiv:1006.1595

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Cited by in corpus (10)

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• Axial-vector dominance predictions in quasielastic neutrino-nucleus scattering
• Axial form factors of the octet baryons in a covariant quark model
• Generalized parton distributions at zero skewness
• Nucleon axial form factor from generalized parton distributions
• Testing of quasi-elastic neutrino charged-current and two-body meson exchange current models with the MiniBooNE neutrino data and analysis of these processes at energies available at the NOvA experiment
• Determination of generalized parton distributions through a simultaneous analysis of axial form factor and wide-angle Compton scattering data
• Quasi-elastic neutrino charged-current scattering off ${}^{12}$C: effects of the meson exchange currents and large nucleon axial mass
• Hadron form factors and large-Nc phenomenology
• Running axial mass of the nucleon as a phenomenological tool for calculating QE neutrino-nucleus cross sections