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First measurement of muon-neutrino disappearance in NOvA

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

This paper reports the first measurement using the NOvA detectors of νμ disappearance in a νμ beam. The analysis uses a 14 kton-equivalent exposure of 2.74×1020 protons-on-target from the Fermilab NuMI beam. Assuming the normal neutrino mass hierarchy, we measure Δm322=(2.52-0.18+0.20)×10-3 eV2 and sin2θ23 in the range 0.38-0.65, both at the 68% confidence level, with two statistically degenerate best-fit points at sin2θ23=0.43 and 0.60. Results for the inverted mass hierarchy are also presented.

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