@article{167d47346e63446c90ea70c33ea3cce7,
title = "Measurement of the Neutrino Mixing Angle θ23 in NOvA",
abstract = "This Letter reports new results on muon neutrino disappearance from NOvA, using a 14 kton detector equivalent exposure of 6.05×1020 protons on target from the NuMI beam at the Fermi National Accelerator Laboratory. The measurement probes the muon-tau symmetry hypothesis that requires maximal θ23 mixing (θ23=π/4). Assuming the normal mass hierarchy, we find Δm322=(2.67±0.11)×10-3 eV2 and sin2θ23 at the two statistically degenerate values 0.404-0.022+0.030 and 0.624-0.030+0.022, both at the 68% confidence level. Our data disfavor the maximal mixing scenario with 2.6σ significance.",
author = "{NOvA Collaboration} and P. Adamson and L. Aliaga and D. Ambrose and N. Anfimov and A. Antoshkin and E. Arrieta-Diaz and K. Augsten and A. Aurisano and C. Backhouse and M. Baird and Bambah, {B. A.} and K. Bays and B. Behera and S. Bending and R. Bernstein and V. Bhatnagar and B. Bhuyan and J. Bian and T. Blackburn and A. Bolshakova and C. Bromberg and J. Brown and G. Brunetti and N. Buchanan and A. Butkevich and V. Bychkov and M. Campbell and E. Catano-Mur and S. Childress and Choudhary, {B. C.} and B. Chowdhury and Coan, {T. E.} and Coelho, {J. A.B.} and M. Colo and J. Cooper and L. Corwin and L. Cremonesi and D. Cronin-Hennessy and Davies, {G. S.} and Davies, {J. P.} and Derwent, {P. F.} and S. Desai and R. Dharmapalan and P. Ding and Z. Djurcic and Dukes, {E. C.} and H. Duyang and S. Edayath and R. Ehrlich and D. Whittington",
note = "Funding Information: This work was supported by the U.S. Department of Energy; the U.S. National Science Foundation; the Department of Science and Technology, India; the European Research Council; the MSMT CR, GA UK, Czech Republic; the RAS, RMES, and RFBR, Russia; CNPq and FAPEG, Brazil; and the state and University of Minnesota. We are grateful for the contributions of the staffs of the University of Minnesota module assembly facility, Argonne National Laboratory, and Fermilab. Fermilab is operated by Fermi Research Alliance, LLC under Contract No.De-AC02-07CH11359 with the U.S. DOE. Publisher Copyright: {\textcopyright} 2017 American Physical Society.",
year = "2017",
month = apr,
day = "10",
doi = "10.1103/PhysRevLett.118.151802",
language = "English (US)",
volume = "118",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "15",
}