{"paper":{"title":"Measurement of the neutrino mixing angle $\\theta_{23}$ in NOvA","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A. Antoshkin, A. Aurisano, A. Bolshakova, A. Butkevich, A. Giri, A. Habig, A. Hatzikoutelis, A. Himmel, A. Holin, A. Kreymer, A. Kumar, A. Moren, A. Norman, A. Olshevskiy, A. Radovic, A. Sheshukov, A. Sousa, A. Tsaris, A. Vold, B. A. Bambah, B. Behera, B. Bhuyan, B. C. Choudhary, B. Chowdhury, B. Guo, B. Potukuchi, B. Rebel, B. Reed, B. Wang, B. Zamorano, C. Backhouse, C. Bromberg, C. Principato, D. Ambrose, D. Cronin-Hennessy, D. Grover, D. Kalra, D. Pershey, D. P. M\\'endez, D. Rocco, D. Whittington, E. Arrieta-Diaz, E. Catano-Mur, E. C. Dukes, E. Niner, E. Song, F. Jediny, F. Psihas, G. Brunetti, G. J. Feldman, G. K. Kafka, G. Pawloski, G. S. Davies, H. Duyang, H. Meyer, H. R. Gallagher, I. Kourbanis, J. A. B. Coelho, J. Bian, J. Brown, J. Cooper, J. Hartnell, J. Hylen, J. K. Nelson, J. Liu, J. Lozier, J. Musser, J. Paley, J. P. Davies, J. Sepulveda-Quiroz, J. Singh, J. Smolik, J. Thomas, J. Tripathi, J. Urheim, J. Vasel, J. Wolcott, J. Zalesak, K. Augsten, K. Bays, K. Heller, K. Lang, K. Maan, K. Matera, K. Sachdev, K. Soustruznik, L. Aliaga, L. Corwin, L. Cremonesi, L. Kolupaeva, L. Mualem, L. Suter, L. Vinton, M. Baird, M. Campbell, M. C. Goodman, M. Colo, M. C. Sanchez, M. C. Tamsett, M. D. Messier, M. Gabrielyan, M. Judah, M. L. Marshak, M. Lokajicek, M. Muether, M. Strait, M. Wetstein, N. Anfimov, N. Buchanan, N. Solomey, N. Yadav, O. Petrova, O. Samoylov, P. Ding, P. F. Derwent, P. Pandey, P. Rojas, P. Sail, P. Shanahan, P. Singh, P. Tas, P. Vahle, R. A. Gomes, R. A. Rameika, R. Bernstein, R. B. Patterson, R. B. Thayyullathil, R. Dharmapalan, R. Ehrlich, R. Group, R. Hatcher, R. Keloth, R. K. Plunkett, R. L. Talaga, R. Mohanta, R. Murphy, R. Nichol, R. Petti, R. Poling, R. Schroeter, R. Zwaska, S. Bending, S. Childress, S. C. Tognini, S. Desai, S. Edayath, S. Germani, S. G. Wojcicki, S. Kasetti, S. Kotelnikov, S. Kurbanov, S. Lin, S. Luchuk, S. Magill, S. M. S. Kasahara, S. Mufson, S. Phan-Budd, S. R. Mishra, S. Yang, T. Blackburn, T. E. Coan, T. Ghosh, The NOvA Collaboration: P. Adamson, T. Miao, T. Nosek, T. Olson, T. Vrba, V. Bhatnagar, V. Bychkov, V. Grichine, V. Matveev, V. Ryabov, V. Singh, W. A. Mann, W. H. Miller, W. M. Lee, X. Tian, Y. Oksuzian, Z. Djurcic","submitted_at":"2017-01-20T18:48:58Z","abstract_excerpt":"This Letter reports new results on muon neutrino disappearance from NOvA, using a 14 kton detector equivalent exposure of $6.05\\times10^{20}$ protons-on-target from the NuMI beam at the Fermi National Accelerator Laboratory. The measurement probes the muon-tau symmetry hypothesis that requires maximal mixing ($\\theta_{23} = \\pi/4$). Assuming the normal mass hierarchy, we find $\\Delta m^2 = (2.67 \\pm 0.11)\\times 10^{-3}$ eV$^2$ and $\\sin^2 \\theta_{23}$ at the two statistically degenerate values $0.404^{+0.030}_{-0.022}$ and $0.624^{+0.022}_{-0.030}$, both at the 68% confidence level. Our data d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.05891","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}