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Search for Active Neutrino Disappearance Using Neutral-Current Interactions in the MINOS Long-Baseline Experiment

P. Adamson C. Andreopoulos K. E. Arms R. Armstrong D. J. Auty D. S. Ayres C. Backhouse B. Baller G. Barr W. L. Barrett B. R. Becker A. Belias R. H. Bernstein D. Bhattacharya M. Bishai A. Blake G. J. Bock J. Boehm D. J. Boehnlein D. Bogert C. Bower E. Buckley-Geer S. Cavanaugh J. D. Chapman D. Cherdack S. Childress B. C. Choudhary J. H. Cobb S. J. Coleman A. J. Culling J. K. de Jong M. Dierckxsens M. V. Diwan M. Dorman S. A. Dytman C. O. Escobar J. J. Evans E. Falk Harris G. J. Feldman M. V. Frohne H. R. Gallagher A. Godley M. C. Goodman P. Gouffon R. Gran E. W. Grashorn N. Grossman K. Grzelak A. Habig D. Harris P. G. Harris J. Hartnell R. Hatcher K. Heller A. Himmel A. Holin L. Hsu J. Hylen G. M. Irwin M. Ishitsuka D. E. Jaffe C. James D. Jensen T. Kafka S. M. S. Kasahara J. J. Kim M. S. Kim G. Koizumi S. Kopp M. Kordosky D. J. Koskinen S. K. Kotelnikov A. Kreymer S. Kumaratunga K. Lang J. Ling P. J. Litchfield R. P. Litchfield L. Loiacono P. Lucas J. Ma W. A. Mann A. Marchionni M. L. Marshak J. S. Marshall N. Mayer A. M. Mcgowan J. R. Meier M. D. Messier C. J. Metelko D. G. Michael W. H. Miller S. R. Mishra C. D. Moore J. Morfín L. Mualem S. Mufson S. Murgia J. Musser D. Naples J. K. Nelson H. B. Newman R. J. Nichol T. C. Nicholls J. P. Ochoa-Ricoux W. P. Oliver R. Ospanov J. Paley V. Paolone A. Para T. Patzak 1 Ž. Pavlović G. Pawloski G. F. Pearce C. W. Peck D. A. Petyt R. Pittam R. K. Plunkett A. Rahaman R. A. Rameika T. M. Raufer B. Rebel J. Reichenbacher P. A. Rodrigues C. Rosenfeld H. A. Rubin V. A. Ryabov M. C. Sanchez N. Saoulidou J. Schneps P. Schreiner P. Shanahan W. Smart C. Smith A. Sousa B. Speakman P. Stamoulis M. Strait N. Tagg R. L. Talaga M. A. Tavera J. Thomas M. A. Thomson J. L. Thron G. Tinti I. Trostin V. A. Tsarev G. Tzanakos J. Urheim P. Vahle B. Viren D. R. Ward M. Watabe A. Weber R. C. Webb A. Wehmann N. West C. White S. G. Wojcicki D. M. Wright T. Yang K. Zhang R. Zwaska
1 APC - Neutrinos
LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies, APC (UMR_7164) - AstroParticule et Cosmologie
Abstract : We report the first detailed comparisons of the rates and spectra of neutral-current neutrino interactions at two widely separated locations. A depletion in the rate at the far site would indicate mixing between νμ and a sterile particle. No anomalous depletion in the reconstructed energy spectrum is observed. Assuming oscillations occur at a single mass-squared splitting, a fit to the neutral- and charged-current energy spectra limits the fraction of νμ oscillating to a sterile neutrino to be below 0.68 at 90% confidence level. A less stringent limit due to a possible contribution to the measured neutral-current event rate at the far site from νe appearance at the current experimental limit is also presented.
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Submitted on : Wednesday, June 6, 2012 - 10:39:43 AM
Last modification on : Wednesday, October 21, 2020 - 4:32:14 PM

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P. Adamson, C. Andreopoulos, K. E. Arms, R. Armstrong, D. J. Auty, et al.. Search for Active Neutrino Disappearance Using Neutral-Current Interactions in the MINOS Long-Baseline Experiment. Physical Review Letters, American Physical Society, 2008, 101, pp.221804. ⟨10.1103/PhysRevLett.101.221804⟩. ⟨in2p3-00704728⟩



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