Measurement of Neutrino-Nucleon Neutral Current Elastic Scattering in MiniBooNE

Using a high-statistics sample of neutral current elastic neutrino interactions, MiniBooNE measured the flux-averaged neutral current elastic differential cross-section on mineral oil ($CH_2$). Using the latter, a $\chi^2$ test of MC with different values of the axial vector mass has been performed. Also, a possibility of using a sample of neutral current elastic proton-enriched events above Cherenkov threshold to measure the ratio $\nu p\to \nu p /\nu N\to \nu N$ is discussed. This ratio is sensitive to the strange quark contribution to the nucleon spin, $\Delta s$.Comment: 6 pages, 4 figures, 2 tables, Proceedings of the 6th International Workshop on Neutrino-Nucleus Interactions in the Few-GeV Region (NuInt09

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