MINOS results and prospects

Creators: Ochoa-Ricoux, J. P.; MINOS Collaboration

Abstract

We report on the updated measurement of muon neutrino disappearance observed in the MINOS detectors. These preliminary results are determined from an exposure of 2.5 x 10^(20) protons on the NuMI target and incorporate several improvements to our analysis. From a maximum likelihood fit to the reconstructed ν_μ energy spectra we obtain the neutrino squared-mass difference vertical bar |Δm^2_(32)| = (2.38^(+0.20)_(-0.16)) x 10^(-3) eV^2 and mixing angle sin^2(2θ_(23)) = 1.00_(-0.08) with errors quoted at the 68% confidence level. We also report on the outlook for future analyses such as the searches for electron neutrino appearance and sterile neutrinos, as well as muon anti-neutrino oscillations and transitions.

Additional Information

© 2009 World Scientific. This work is supported by the U.S. Department of Energy, the U.K. Science and Technology Facilities Council, the U.S. National Science Foundation, the State and University of Minnesota, the Office of Special Accounts for Research Grants of the University of Athens, Greece, and FAPESP (Fundacao de Amparo a Pesquisa do Estado de Sao Paulo) and CNPq (Conselho Nacional de Desenvolvimento Cientificico e Tecnologico) in Brazil. We thank the Fermilab staff, the crew of Soudan Underground Physics laboratory and the Minnesota Department of Natural Resources for their vital contributions to the project.

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MINOS results and prospects

Abstract

Additional Information

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