First measurement of electron neutrino appearance in NOvA

Adamson, P. and Ader, C. and Andrews, M. and Anfimov, N. and Anghel, I. and Arms, K. and Arrieta-Diaz, E. and Aurisano, A. and Ayres, D. and Backhouse, C. and Baird, M. and Bambah, B. A. and Bays, K. and Bernstein, R. and Betancourt, M. and Bhatnagar, V. and Bhuyan, B. and Bian, J. and Biery, K. and Bocean, V. and Bogert, D. and Bolshakova, A. and Bowden, M. and Bower, C. and Broemmelsiek, D. and Bromberg, C. and Brunetti, G. and Bu, X. and Butkevich, A. and Capista, D. and Catano-Mur, E. and Chase, T. R. and Childress, S. and Choudhary, B. C. and Chowdhury, B. and Coan, T. E. and Coelho, J. A. B. and Colo, M. and Corwin, L. and Cronin-Hennessy, D. and Tutto, M. Del and Derwent, P. F. and Deepthi, K. N. and Demuth, D. and Desai, S. and Deuerling, G. and Devan, A. and Dey, J. and Dharmapalan, R. and Nowak, J. (2016) First measurement of electron neutrino appearance in NOvA. Physical review letters, 116 (15). ISSN 1079-7114

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Abstract

We report results from the first search for $\nu_\mu\to\nu_e$ transitions by the NOvA experiment. In an exposure equivalent to $2.74\times10^{20}$ protons-on-target in the upgraded NuMI beam at Fermilab, we observe 6 events in the Far Detector, compared to a background expectation of $0.99\pm0.11$ (syst.) events based on the Near Detector measurement. A secondary analysis observes 11 events with a background of $1.07\pm0.14$ (syst.). The $3.3\sigma$ excess of events observed in the primary analysis disfavors $0.1\pi

Item Type:
Journal Article
Journal or Publication Title:
Physical review letters
Additional Information:
© 2016 American Physical Society
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100
Subjects:
ID Code:
78400
Deposited By:
Deposited On:
26 Feb 2016 09:52
Refereed?:
Yes
Published?:
Published
Last Modified:
06 Jun 2020 03:50