Improved measurement of neutrino oscillation parameters by the NOvA experiment

Acero, M.A.; Adamson, P.; Aliaga, L.; Anfimov, N.; Antoshkin, A.; Arrieta-Diaz, E.; Asquith, L.; Aurisano, A.; Back, A.; Backhouse, C.; Baird, M.; Balashov, N.; Baldi, P.; Bambah, B.A.; Bashar, S.; Bays, K.; Bernstein, R.; Bhatnagar, V.; Bhattarai, D.; Bhuyan, B.; Bian, J.; Blair, J.; Booth, A.C.; Bowles, R.; Bromberg, C.; Buchanan, N.; Butkevich, A.; Calvez, S.; Carroll, T.J.; Catano-Mur, E.; Choudhary, B.C.; Christensen, A.; Coan, T.E.; Colo, M.; Cremonesi, L.; Davies, G.S.; Derwent, P.F.; Ding, P.; Djurcic, Z.; Dolce, M.; Doyle, D.; Dueñas Tonguino, D.; Dukes, E.C.; Duyang, H.; Ehrlich, R.; Elkins, M.; Ewart, E.; Feldman, G.J.; Filip, P.; Franc, J.; Frank, M.J.; Gallagher, H.R.; Gandrajula, R.; Gao, F.; Giri, A.; Gomes, R.A.; Goodman, M.C.; Grichine, V.; Groh, M.; Group, R.; Guo, B.; Habig, A.; Hakl, F.; Hall, A.; Hartnell, J.; Hatcher, R.; Hausner, H.; He, M.; Heller, K.; Hewes, J.; Himmel, A.; Holin, A.; Huang, J.; Jargowsky, B.; Jarosz, J.; Jediny, F.; Johnson, C.; Judah, M.; Kakorin, I.; Kaplan, D.M.; Kalitkina, A.; Keloth, R.; Klimov, O.; Koerner, L.W.; Kolupaeva, L.; Kotelnikov, S.; Kralik, R.; Kullenberg, Ch.; Kubu, M.; Kumar, A.; Kuruppu, C.D.; Kus, V.; Lackey, T.; Lang, K.; Lasorak, P.; Lesmeister, J.; Lin, S.; Lister, A.; Liu, J.; Lokajicek, M.; Magill, S.; Manrique Plata, M.; Mann, W.A.; Marshak, M.L.; Martinez-Casales, M.; Matveev, V.; Mayes, B.; Méndez, D.P.; Messier, M.D.; Meyer, H.; Miao, T.; Miller, W.H.; Mishra, S.R.; Mislivec, A.; Mohanta, R.; Moren, A.; Morozova, A.; Mu, W.; Mualem, L.; Muether, M.; Mufson, S.; Mulder, K.; Naples, D.; Nayak, N.; Nelson, J.K.; Nichol, R.; Niner, E.; Norman, A.; Norrick, A.; Nosek, T.; Oh, H.; Olshevskiy, A.; Olson, T.; Ott, J.; Paley, J.; Patterson, R.B.; Pawloski, G.; Petrova, O.; Petti, R.; Phan, D.D.; Plunkett, R.K.; Porter, J.C.C.; Rafique, A.; Psihas, F.; Raj, V.; Rajaoalisoa, M.; Ramson, B.; Rebel, B.; Rojas, P.; Roy, P.; Ryabov, V.; Samoylov, O.; Sanchez, M.C.; Sánchez Falero, S.; Shanahan, P.; Sheshukov, A.; Singh, P.; Singh, V.; Smith, E.; Smolik, J.; Snopok, P.; Solomey, N.; Sousa, A.; Soustruznik, K.; Strait, M.; Suter, L.; Sutton, A.; Swain, S.; Sweeney, C.; Sztuc, A.; Talaga, R.L.; Tapia Oregui, B.; Tas, P.; Thakore, T.; Thayyullathil, R.B.; Thomas, J.; Tiras, E.; Tripathi, J.; Trokan-Tenorio, J.; Tsaris, A.; Torun, Y.; Urheim, J.; Vahle, P.; Vallari, Z.; Vasel, J.; Vokac, P.; Vrba, T.; Wallbank, M.; Warburton, T.K.; Wetstein, M.; Whittington, D.; Wickremasinghe, D.A.; Wojcicki, S.G.; Wolcott, J.; Wu, W.; Xiao, Y.; Yallappa Dombara, A.; Yankelevich, A.; Yonehara, K.; Yu, S.; Yu, Y.; Zadorozhnyy, S.; Zalesak, J.; Zhang, Y.; Zwaska, R.

doi:10.1103/physrevd.106.032004

Improved measurement of neutrino oscillation parameters by the NOvA experiment

Copy For Citation

Acero M., Adamson P., Aliaga L., Anfimov N., Antoshkin A., Arrieta-Diaz E., ...More

Physical Review D, vol.106, no.3, 2022 (SCI-Expanded)

Publication Type: Article / Article
Volume: 106 Issue: 3
Publication Date: 2022
Doi Number: 10.1103/physrevd.106.032004
Journal Name: Physical Review D
Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, INSPEC, zbMATH
Kayseri University Affiliated: No

Abstract

© 2022 authors. Published by the American Physical Society.We present new νμ→νe, νμ→νμ, ν¯μ→ν¯e, and ν¯μ→ν¯μ oscillation measurements by the NOvA experiment, with a 50% increase in neutrino-mode beam exposure over the previously reported results. The additional data, combined with previously published neutrino and antineutrino data, are all analyzed using improved techniques and simulations. A joint fit to the νe, νμ, ν¯e, and ν¯μ candidate samples within the 3-flavor neutrino oscillation framework continues to yield a best-fit point in the normal mass ordering and the upper octant of the θ23 mixing angle, with Δm322=(2.41±0.07)×10-3 eV2 and sin2θ23=0.57-0.04+0.03. The data disfavor combinations of oscillation parameters that give rise to a large asymmetry in the rates of νe and ν¯e appearance. This includes values of the charge parity symmetry (CP) violating phase in the vicinity of δCP=π/2 which are excluded by >3σ for the inverted mass ordering, and values around δCP=3π/2 in the normal ordering which are disfavored at 2σ confidence.