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arXiv · 1601.05037

First measurement of muon-neutrino disappearance in NOvA

P. Adamson·C. Ader·M. Andrews·N. Anfimov·I. Anghel·K. Arms·E. Arrieta-Diaz·A. Aurisano·D. Ayres·C. Backhouse·M. Baird·B. A. Bambah·K. Bays·R. Bernstein·M. Betancourt·V. Bhatnagar·B. Bhuyan·J. Bian·K. Biery·T. Blackburn·V. Bocean·D. Bogert·A. Bolshakova·M. Bowden·C. Bower·D. Broemmelsiek·C. Bromberg·G. Brunetti·X. Bu·A. Butkevich·D. Capista·E. Catano-Mur·T. R. Chase·S. Childress·B. C. Choudhary·B. Chowdhury·T. E. Coan·J. A. B. Coelho·M. Colo·J. Cooper·L. Corwin·D. Cronin-Hennessy·A. Cunningham·G. S. Davies·J. P. Davies·M. Del Tutto·P. F. Derwent·K. N. Deepthi·D. Demuth·S. Desai·G. Deuerling·A. Devan·J. Dey·R. Dharmapalan·P. Ding·S. Dixon·Z. Djurcic·E. C. Dukes·H. Duyang·R. Ehrlich·G. J. Feldman·N. Felt·E. J. Fenyves·E. Flumerfelt·S. Foulkes·M. J. Frank·W. Freeman·M. Gabrielyan·H. R. Gallagher·M. Gebhard·T. Ghosh·W. Gilbert·A. Giri·S. Goadhouse·R. A. Gomes·L. Goodenough·M. C. Goodman·V. Grichine·N. Grossman·R. Group·J. Grudzinski·V. Guarino·B. Guo·A. Habig·T. Handler·J. Hartnell·R. Hatcher·A. Hatzikoutelis·K. Heller·C. Howcroft·J. Huang·X. Huang·J. Hylen·M. Ishitsuka·F. Jediny·C. Jensen·D. Jensen·C. Johnson·H. Jostlein·G. K. Kafka
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Abstract

This paper reports the first measurement using the NOvA detectors of $\nu_\mu$ disappearance in a $\nu_\mu$ beam. The analysis uses a 14 kton-equivalent exposure of $2.74 \times 10^{20}$ protons-on-target from the Fermilab NuMI beam. Assuming the normal neutrino mass hierarchy, we measure $\Delta m^{2}_{32}=(2.52^{+0.20}_{-0.18})\times 10^{-3}$ eV$^{2}$ and $\sin^2\theta_{23}$ in the range 0.38-0.65, both at the 68% confidence level, with two statistically-degenerate best fit points at $\sin^2\theta_{23} = $ 0.43 and 0.60. Results for the inverted mass hierarchy are also presented.

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P. Adamson, C. Ader, M. Andrews, N. Anfimov, I. Anghel, K. Arms, E. Arrieta-Diaz, A. Aurisano, D. Ayres, C. Backhouse, M. Baird, B. A. Bambah, K. Bays, R. Bernstein, M. Betancourt, V. Bhatnagar, B. Bhuyan, J. Bian, K. Biery, T. Blackburn, V. Bocean, D. Bogert, A. Bolshakova, M. Bowden, C. Bower, D. Broemmelsiek, C. Bromberg, G. Brunetti, X. Bu, A. Butkevich, D. Capista, E. Catano-Mur, T. R. Chase, S. Childress, B. C. Choudhary, B. Chowdhury, T. E. Coan, J. A. B. Coelho, M. Colo, J. Cooper, L. Corwin, D. Cronin-Hennessy, A. Cunningham, G. S. Davies, J. P. Davies, M. Del Tutto, P. F. Derwent, K. N. Deepthi, D. Demuth, S. Desai, G. Deuerling, A. Devan, J. Dey, R. Dharmapalan, P. Ding, S. Dixon, Z. Djurcic, E. C. Dukes, H. Duyang, R. Ehrlich, G. J. Feldman, N. Felt, E. J. Fenyves, E. Flumerfelt, S. Foulkes, M. J. Frank, W. Freeman, M. Gabrielyan, H. R. Gallagher, M. Gebhard, T. Ghosh, W. Gilbert, A. Giri, S. Goadhouse, R. A. Gomes, L. Goodenough, M. C. Goodman, V. Grichine, N. Grossman, R. Group, J. Grudzinski, V. Guarino, B. Guo, A. Habig, T. Handler, J. Hartnell, R. Hatcher, A. Hatzikoutelis, K. Heller, C. Howcroft, J. Huang, X. Huang, J. Hylen, M. Ishitsuka, F. Jediny, C. Jensen, D. Jensen, C. Johnson, H. Jostlein, G. K. Kafka. 2016-01-19. First measurement of muon-neutrino disappearance in NOvA. https://doi.org/10.1103/physrevd.93.051104

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