Measurement of the antineutrino neutral-current elastic differential cross section

We report the measurement of the flux-averaged antineutrino neutral current elastic scattering cross section (d sigma((nu) over barN ->(nu) over barN) / dQ(2)) on CH2 by the MiniBooNE experiment using the largest sample of antineutrino neutral current elastic candidate events ever collected. The ratio of the antineutrino to neutrino neutral current elastic scattering cross sections and a ratio of the antineutrino neutral current elastic to antineutrino charged current quasielastic cross sections are also presented.