September 22, 2010 Wednesday 15:30
Zeynep ─░svan, Pittsburgh University
Measurement of Muon Neutrino and Antineutrino Oscillations with MINOS

MINOS records interactions of neutrinos produced by the Fermilab NuMI beam in two detectors, 734 km apart. Comparisons of the energy spectra and beam composition at the two sites yield precision measurements of neutrino oscillations for L/E ~500 km/GeV. We present the most precise measurement of neutrino oscillations in the atmospheric sector with a $7.1 \times 10^{20}$ protons-on-target exposure to the NuMI neutrino beam. We also present the first direct, precision measurement of antineutrino oscillations in the atmospheric sector based on a $1.8 \times 10^{20}$ protons-on-target exposure to NuMI antineutrinos during a dedicated antineutrino run.