Publication: Measurement of Neutrino Oscillations with the MINOS Detectors in the NuMI Beam
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2008
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American Physical Society
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Adamson, P., C. Andreopoulous, K. E. Arms, R. Armstrong, D. J. Auty, D. S. Ayres, B. Baller et al. 2008. Measurement of neutrino oscillations with the MINOS detectors in the NuMI beam. Physical Review Letters 101(13): 130502.
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Abstract
(G. J. Feldman is the Harvard author) This Letter reports new results from the MINOS experiment based on a two-year exposure to muon neutrinos from the Fermilab NuMI beam. Our data are consistent with quantum-mechanical oscillations of neutrino flavor with mass splitting |delta m^2|=(2.43±0.13)×10^-3 eV^2 (68% C.L.) and mixing angle (sin(2*theta))^2>0.90 (90% C.L.). Our data disfavor two alternative explanations for the disappearance of neutrinos in flight: namely, neutrino decays into lighter particles and quantum decoherence of neutrinos, at the 3.7 and 5.7 standard-deviation levels, respectively.
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