Journal
PHYSICAL REVIEW D
Volume 84, Issue 7, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.84.073006
Keywords
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Funding
- NSF [0855039]
- DOE [DE-FG02-90ER40560]
- Division Of Physics
- Direct For Mathematical & Physical Scien [0855039] Funding Source: National Science Foundation
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Quasielastic neutrino-nucleon scattering is a basic signal process for neutrino oscillation studies. At accelerator energies, the corresponding cross section is subject to significant uncertainty due to the poorly constrained axial-vector form factor of the nucleon. A model-independent description of the axial-vector form factor is presented. Data from the MiniBooNE experiment for quasielastic neutrino scattering on C-12 are analyzed under the assumption of a definite nuclear model. The value of the axial mass parameter, m(A) = (+0.22)(-0.07) +/- GeV, is found to differ significantly from extractions based on traditional form factor models. Implications for future neutrino scattering and pion electroproduction measurements are discussed.
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