Search for muon-Neutrino to electron-Neutrino transitions in MINOS

P. Adamson, C. Andreopoulos, K. E. Arms, R. Armstrong, D. J. Auty, D. S. Ayres, C. Backhouse, P. D. Barnes, G. Barr, W. L. Barrett, B. R. Becker, A. Belias, R. H. Bernstein, M. Betancourt, D. Bhattacharya, M. Bishai, A. Blake, G. J. Bock, J. Boehm, D. J. BoehnleinD. Bogert, C. Bower, S. Cavanaugh, J. D. Chapman, D. Cherdack, S. Childress, B. C. Choudhary, J. H. Cobb, J. A.B. Coelho, S. J. Coleman, D. Cronin-Hennessy, A. J. Culling, I. Z. Danko, J. K. De Jong, N. E. Devenish, M. V. Diwan, M. Dorman, A. R. Erwin, C. O. Escobar, J. J. Evans, E. Falk, G. J. Feldman, M. V. Frohne, H. R. Gallagher, A. Godley, M. C. Goodman, P. Gouffon, R. Gran, E. W. Grashorn, K. Grzelak, A. Habig, D. Harris, P. G. Harris, J. Hartnell, R. Hatcher, K. Heller, A. Himmel, A. Holin, C. Howcroft, X. Huang, J. Hylen, G. M. Irwin, Z. Isvan, D. E. Jaffe, C. James, D. Jensen, T. Kafka, S. M.S. Kasahara, G. Koizumi, S. Kopp, M. Kordosky, D. J. Koskinen, Z. Krahn, A. Kreymer, K. Lang, J. Ling, P. J. Litchfield, R. P. Litchfield, L. Loiacono, P. Lucas, J. Ma, W. A. Mann, M. L. Marshak, J. S. Marshall, N. Mayer, A. M. McGowan, R. Mehdiyev, J. R. Meier, M. D. Messier, C. J. Metelko, D. G. Michael, W. H. Miller, S. R. Mishra, J. Mitchell, C. D. Moore, J. Morfín, L. Mualem, S. Mufson, 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, A. Para, R. B. Patterson, T. Patzak, Ž Pavlović, G. Pawloski, G. F. Pearce, 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, J. Thomas, M. A. Thomson, J. L. Thron, G. Tinti, R. Toner, V. A. Tsarev, G. Tzanakos, J. Urheim, P. Vahle, B. Viren, D. R. Ward, M. Watabe, A. Weber, R. C. Webb, N. West, C. White, L. Whitehead, S. G. Wojcicki, D. M. Wright, T. Yang, K. Zhang, H. Zheng, M. Zois, R. Zwaska

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56 Scopus citations

Abstract

This Letter reports on a search for νμ→νe transitions by the MINOS experiment based on a 3.14×1020 protons-on-target exposure in the Fermilab NuMI beam. We observe 35 events in the Far Detector with a background of 27±5(stat)±2(syst) events predicted by the measurements in the Near Detector. If interpreted in terms of νμ→νe oscillations, this 1.5σ excess of events is consistent with sin 2(2θ13) comparable to the CHOOZ limit when |Δm2|=2.43×10-3eV2 and sin 2(2θ23)=1.0 are assumed.

Original languageEnglish (US)
Article number261802
JournalPhysical Review Letters
Volume103
Issue number26
DOIs
StatePublished - 2009
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy

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