/ hep-ex arXiv:1707.01048


Measurement of neutrino and antineutrino oscillations by the T2K experiment including a new additional sample of $\nu_e$ interactions at the far detector


Abe, K. (Kamioka Observ.) ; Amey, J. (Imperial Coll., London) ; Andreopoulos, C. (Liverpool U.) ; Antonova, M. (Moscow, INR) ; Aoki, S. (Kobe U.) ; Ariga, A. (U. Bern, AEC) ; Ashida, Y. (Kyoto U.) ; Ban, S. (Kyoto U.) ; Barbi, M. (Regina U.) ; Barker, G.J. (Warwick U.) ; Barr, G. (Oxford U.) ; Barry, C. (Liverpool U.) ; Batkiewicz, M. (Cracow, INP) ; Berardi, V. (INFN, Bari) ; Berkman, S. (TRIUMF) ; Bhadra, S. (York U., Canada) ; Bienstock, S. (Paris U., VI-VII) ; Blondel, A. (Geneva U.) ; Bolognesi, S. (IRFU, SPhN, Saclay) ; Bordoni, S. (Barcelona, IFAE) ; Boyd, S.B. (Warwick U.) ; Brailsford, D. (Lancaster U.) ; Bravar, A. (Geneva U.) ; Bronner, C. (Kamioka Observ.) ; Buizza Avanzini, M. (Ecole Polytechnique) ; Calland, R.G. (Tokyo U., IPMU) ; Campbell, T. (Colorado State U.) ; Cao, S. (KEK, Tsukuba) ; Cartwright, S.L. (Sheffield U.) ; Catanesi, M.G. (INFN, Bari) ; Cervera, A. (Valencia U., IFIC) ; Chappell, A. (Warwick U.) ; Checchia, C. (Padua U.) ; Cherdack, D. (Colorado State U.) ; Chikuma, N. (Tokyo U.) ; Christodoulou, G. (Liverpool U.) ; Coleman, J. (Liverpool U.) ; Collazuol, G. (Padua U.) ; Coplowe, D. (Oxford U.) ; Cudd, A. (Michigan State U.) ; Dabrowska, A. (Cracow, INP) ; De Rosa, G. (Naples U.) ; Dealtry, T. (Lancaster U.) ; Denner, P.F. (Warwick U.) ; Dennis, S.R. (Liverpool U.) ; Densham, C. (Rutherford) ; Di Lodovico, F. (Queen Mary, U. of London) ; Dolan, S. (Oxford U.) ; Drapier, O. (Ecole Polytechnique) ; Duffy, K.E. (Oxford U.) ; Dumarchez, J. (Paris U., VI-VII) ; Dunne, P. (Imperial Coll., London) ; Emery-Schrenk, S. (IRFU, SPhN, Saclay) ; Ereditato, A. (U. Bern, AEC) ; Feusels, T. (TRIUMF) ; Finch, A.J. (Lancaster U.) ; Fiorentini, G.A. (York U., Canada) ; Friend, M. (KEK, Tsukuba) ; Fujii, Y. (KEK, Tsukuba) ; Fukuda, D. (Okayama U.) ; Fukuda, Y. (Miyagi U. of Education) ; Garcia, A. (Barcelona, IFAE) ; Giganti, C. (Paris U., VI-VII) ; Gizzarelli, F. (IRFU, SPhN, Saclay) ; Golan, T. (Wroclaw U.) ; Gonin, M. (Ecole Polytechnique) ; Hadley, D.R. (Warwick U.) ; Haegel, L. (Geneva U.) ; Haigh, J.T. (Warwick U.) ; Hansen, D. (Pittsburgh U.) ; Harada, J. (Osaka City U.) ; Hartz, M. (TRIUMF) ; Hasegawa, T. (KEK, Tsukuba) ; Hastings, N.C. (Regina U.) ; Hayashino, T. (Kyoto U.) ; Hayato, Y. (Tokyo U., IPMU) ; Hillairet, A. (Victoria U.) ; Hiraki, T. (Kyoto U.) ; Hiramoto, A. (Kyoto U.) ; Hirota, S. (Kyoto U.) ; Hogan, M. (Colorado State U.) ; Holeczek, J. (Silesia U.) ; Hosomi, F. (Tokyo U.) ; Huang, K. (Kyoto U.) ; Ichikawa, A.K. (Kyoto U.) ; Ikeda, M. (Kamioka Observ.) ; Imber, J. (Ecole Polytechnique) ; Insler, J. (Louisiana State U.) ; Intonti, R.A. (INFN, Bari) ; Ishida, T. (KEK, Tsukuba) ; Ishii, T. (KEK, Tsukuba) ; Iwai, E. (KEK, Tsukuba) ; Iwamoto, K. (Tokyo U.) ; Izmaylov, A. (Moscow, INR) ; Jamieson, B. (Manitoba U.) ; Jiang, M. (Kyoto U.) ; Johnson, S. (Colorado U.) ; Jonsson, P. (Imperial Coll., London) ; Jung, C.K. (SUNY, Stony Brook) ; Kabirnezhad, M. (NCBJ, Swierk) ; Kaboth, A.C. (Rutherford) ; Kajita, T. (Tokyo U., ICRR) ; Kakuno, H. (Tokyo Metropolitan U.) ; Kameda, J. (Kamioka Observ.) ; Karlen, D. (TRIUMF) ; Katori, T. (Queen Mary, U. of London) ; Kearns, E. (Tokyo U., IPMU) ; Khabibullin, M. (Moscow, INR) ; Khotjantsev, A. (Moscow, INR) ; Kim, H. (Osaka City U.) ; Kim, J. (TRIUMF) ; King, S. (Queen Mary, U. of London) ; Kisiel, J. (Silesia U.) ; Knight, A. (Warwick U.) ; Knox, A. (Lancaster U.) ; Kobayashi, T. (KEK, Tsukuba) ; Koch, L. (Aachen, Tech. Hochsch.) ; Koga, T. (Tokyo U.) ; Koller, P.P. (U. Bern, AEC) ; Konaka, A. (TRIUMF) ; Kormos, L.L. (Lancaster U.) ; Koshio, Y. (Okayama U.) ; Kowalik, K. (NCBJ, Swierk) ; Kudenko, Y. (Moscow, INR) ; Kurjata, R. (Warsaw U. of Tech.) ; Kutter, T. (Louisiana State U.) ; Lagoda, J. (NCBJ, Swierk) ; Lamont, I. (Lancaster U.) ; Lamoureux, M. (IRFU, SPhN, Saclay) ; Lasorak, P. (Queen Mary, U. of London) ; Laveder, M. (Padua U.) ; Lawe, M. (Lancaster U.) ; Licciardi, M. (Ecole Polytechnique) ; Lindner, T. (TRIUMF) ; Liptak, Z.J. (Colorado U.) ; Litchfield, R.P. (Imperial Coll., London) ; Li, X. (SUNY, Stony Brook) ; Longhin, A. (Padua U.) ; Lopez, J.P. (Colorado U.) ; Lou, T. (Tokyo U.) ; Ludovici, L. (Rome U.) ; Lu, X. (Oxford U.) ; Magaletti, L. (INFN, Bari) ; Mahn, K. (Michigan State U.) ; Malek, M. (Sheffield U.) ; Manly, S. (Rochester U.) ; Maret, L. (Geneva U.) ; Marino, A.D. (Colorado U.) ; Martin, J.F. (Toronto U.) ; Martins, P. (Queen Mary, U. of London) ; Martynenko, S. (SUNY, Stony Brook) ; Maruyama, T. (KEK, Tsukuba) ; Matveev, V. (Moscow, INR) ; Mavrokoridis, K. (Liverpool U.) ; Ma, W.Y. (Imperial Coll., London) ; Mazzucato, E. (IRFU, SPhN, Saclay) ; McCarthy, M. (York U., Canada) ; McCauley, N. (Liverpool U.) ; McFarland, K.S. (Rochester U.) ; McGrew, C. (SUNY, Stony Brook) ; Mefodiev, A. (Moscow, INR) ; Metelko, C. (Liverpool U.) ; Mezzetto, M. (Padua U.) ; Minamino, A. (Yokohama Natl. U.) ; Mineev, O. (Moscow, INR) ; Mine, S. (UC, Irvine) ; Missert, A. (Colorado U.) ; Miura, M. (Kamioka Observ.) ; Moriyama, S. (Kamioka Observ.) ; Morrison, J. (Michigan State U.) ; Mueller, Th.A. (Ecole Polytechnique) ; Nakadaira, T. (KEK, Tsukuba) ; Nakahata, M. (Tokyo U., IPMU) ; Nakamura, K.G. (Kyoto U.) ; Nakamura, K. (KEK, Tsukuba) ; Nakamura, K.D. (Kyoto U.) ; Nakanishi, Y. (Kyoto U.) ; Nakayama, S. (Kamioka Observ.) ; Nakaya, T. (Tokyo U., IPMU) ; Nakayoshi, K. (KEK, Tsukuba) ; Nantais, C. (Toronto U.) ; Nielsen, C. (TRIUMF) ; Nishikawa, K. (KEK, Tsukuba) ; Nishimura, Y. (Tokyo U., ICRR) ; Novella, P. (Valencia U., IFIC) ; Nowak, J. (Lancaster U.) ; O'Keeffe, H.M. (Lancaster U.) ; Okumura, K. (Tokyo U., IPMU) ; Okusawa, T. (Osaka City U.) ; Oryszczak, W. (Warsaw U.) ; Oser, S.M. (TRIUMF) ; Ovsyannikova, T. (Moscow, INR) ; Owen, R.A. (Queen Mary, U. of London) ; Oyama, Y. (KEK, Tsukuba) ; Palladino, V. (Naples U.) ; Palomino, J.L. (SUNY, Stony Brook) ; Paolone, V. (Pittsburgh U.) ; Patel, N.D. (Kyoto U.) ; Paudyal, P. (Liverpool U.) ; Pavin, M. (Paris U., VI-VII) ; Payne, D. (Liverpool U.) ; Petrov, Y. (TRIUMF) ; Pickering, L. (Imperial Coll., London) ; Pinzon Guerra, E.S. (York U., Canada) ; Pistillo, C. (U. Bern, AEC) ; Popov, B. (Paris U., VI-VII) ; Posiadala-Zezula, M. (Warsaw U.) ; Poutissou, J.-M. (TRIUMF) ; Pritchard, A. (Liverpool U.) ; Przewlocki, P. (NCBJ, Swierk) ; Quilain, B. (Kyoto U.) ; Radermacher, T. (Aachen, Tech. Hochsch.) ; Radicioni, E. (INFN, Bari) ; Ratoff, P.N. (Lancaster U.) ; Rayner, M.A. (Geneva U.) ; Reinherz-Aronis, E. (Colorado State U.) ; Riccio, C. (Naples U.) ; Rodrigues, P.A. (Rochester U.) ; Rondio, E. (NCBJ, Swierk) ; Rossi, B. (Naples U.) ; Roth, S. (Aachen, Tech. Hochsch.) ; Ruggeri, A.C. (Naples U.) ; Rychter, A. (Warsaw U. of Tech.) ; Sakashita, K. (KEK, Tsukuba) ; Sánchez, F. (Barcelona, IFAE) ; Scantamburlo, E. (Geneva U.) ; Scholberg, K. (Duke U.) ; Schwehr, J. (Colorado State U.) ; Scott, M. (TRIUMF) ; Seiya, Y. (Osaka City U.) ; Sekiguchi, T. (KEK, Tsukuba) ; Sekiya, H. (Tokyo U., IPMU) ; Sgalaberna, D. (Geneva U.) ; Shah, R. (Oxford U.) ; Shaikhiev, A. (Moscow, INR) ; Shaker, F. (Manitoba U.) ; Shaw, D. (Lancaster U.) ; Shiozawa, M. (Tokyo U., IPMU) ; Shirahige, T. (Okayama U.) ; Smy, M. (UC, Irvine) ; Sobczyk, J.T. (Wroclaw U.) ; Sobel, H. (Tokyo U., IPMU) ; Steinmann, J. (Aachen, Tech. Hochsch.) ; Stewart, T. (Rutherford) ; Stowell, P. (Sheffield U.) ; Suda, Y. (Tokyo U.) ; Suvorov, S. (Moscow, INR) ; Suzuki, A. (Kobe U.) ; Suzuki, S.Y. (KEK, Tsukuba) ; Suzuki, Y. (Tokyo U., IPMU) ; Tacik, R. (TRIUMF) ; Tada, M. (KEK, Tsukuba) ; Takeda, A. (Kamioka Observ.) ; Takeuchi, Y. (Tokyo U., IPMU) ; Tamura, R. (Tokyo U.) ; Tanaka, H.K. (Kamioka Observ.) ; Tanaka, H.A. (TRIUMF) ; Thakore, T. (Louisiana State U.) ; Thompson, L.F. (Sheffield U.) ; Tobayama, S. (TRIUMF) ; Toki, W. (Colorado State U.) ; Tomura, T. (Kamioka Observ.) ; Tsukamoto, T. (KEK, Tsukuba) ; Tzanov, M. (Louisiana State U.) ; Vagins, M. (UC, Irvine) ; Vallari, Z. (SUNY, Stony Brook) ; Vasseur, G. (IRFU, SPhN, Saclay) ; Vilela, C. (SUNY, Stony Brook) ; Vladisavljevic, T. (Tokyo U., IPMU) ; Wachala, T. (Cracow, INP) ; Walter, C.W. (Duke U.) ; Wark, D. (Oxford U.) ; Wascko, M.O. (Imperial Coll., London) ; Weber, A. (Oxford U.) ; Wendell, R. (Kyoto U.) ; Wilking, M.J. (SUNY, Stony Brook) ; Wilkinson, C. (U. Bern, AEC) ; Wilson, J.R. (Queen Mary, U. of London) ; Wilson, R.J. (Colorado State U.) ; Wret, C. (Imperial Coll., London) ; Yamada, Y. (KEK, Tsukuba) ; Yamamoto, K. (Osaka City U.) ; Yanagisawa, C. (SUNY, Stony Brook) ; Yano, T. (Kobe U.) ; Yen, S. (TRIUMF) ; Yershov, N. (Moscow, INR) ; Yokoyama, M. (Tokyo U.) ; Yu, M. (York U., Canada) ; Zalewska, A. (Cracow, INP) ; Zalipska, J. (NCBJ, Swierk) ; Zambelli, L. (KEK, Tsukuba) ; Zaremba, K. (Warsaw U. of Tech.) ; Ziembicki, M. (Warsaw U. of Tech.) ; Zimmerman, E.D. (Colorado U.) ; Zito, M. (IRFU, SPhN, Saclay)

Pages: 50

Abstract: The T2K experiment reports an updated analysis of neutrino and antineutrino oscillations in appearance and disappearance channels. A sample of electron neutrino candidates at Super-Kamiokande in which a pion decay has been tagged is added to the four single-ring samples used in previous T2K oscillation analyses. Through combined analyses of these five samples, simultaneous measurements of four oscillation parameters, $|\Delta m^2_{32}|$, $\sin^2(\theta_{23})$, $\sin^2(\theta_{13})$, and $\delta_{CP}$ and of the mass ordering are made. A set of studies of simulated data indicates that the sensitivity to the oscillation parameters is not limited by neutrino interaction model uncertainty. Multiple oscillation analyses are performed, and frequentist and Bayesian intervals are presented for combinations of the oscillation parameters with and without the inclusion of reactor constraints on $\sin^2(\theta_{13})$. When combined with reactor measurements, the hypothesis of CP conservation ($\delta_{CP}$$=0$ or $\pi$) is excluded at 90% confidence level. The 90% confidence region for $\delta_{CP}$ is [-2.95,-0.44] ([-1.47, -1.27]) for normal (inverted) ordering. The central values and 68\% confidence intervals for the other oscillation parameters for normal (inverted) ordering are $\Delta m^{2}_{32}=2.54\pm0.08$ ($2.51\pm0.08$) $\times 10^{-3}$ eV$^2 / c^4$ and $\sin^2(\theta_{23}) = 0.55^{+0.05}_{-0.09}$ ($0.55^{+0.05}_{-0.08}$), compatible with maximal mixing. In the Bayesian analysis, the data weakly prefer normal ordering (Bayes factor 3.7) and the upper octant for $\sin^2(\theta_{23})$ (Bayes factor 2.4).

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http://inspirehep.net/record/1608615/files/fig_14b.png; http://inspirehep.net/record/1608615/files/fig_14a.png; http://inspirehep.net/record/1608615/files/fig_7b.png; http://inspirehep.net/record/1608615/files/fig_24a.png; http://inspirehep.net/record/1608615/files/fig_32b.png; http://inspirehep.net/record/1608615/files/fig_24b.png; http://inspirehep.net/record/1608615/files/fig_14c.png; http://inspirehep.net/record/1608615/files/fig_7c.png; http://inspirehep.net/record/1608615/files/fig_14d.png; http://inspirehep.net/record/1608615/files/fig_7d.png; http://inspirehep.net/record/1608615/files/fig_9b.png; http://inspirehep.net/record/1608615/files/fig_19b.png; http://inspirehep.net/record/1608615/files/fig_19a.png; http://inspirehep.net/record/1608615/files/fig_38.png; http://inspirehep.net/record/1608615/files/fig_18.png; http://inspirehep.net/record/1608615/files/fig_9a.png; http://inspirehep.net/record/1608615/files/fig_21b.png; http://inspirehep.net/record/1608615/files/fig_44.png; http://inspirehep.net/record/1608615/files/fig_21a.png; http://inspirehep.net/record/1608615/files/fig_29b.png; http://inspirehep.net/record/1608615/files/fig_28a.png; http://inspirehep.net/record/1608615/files/fig_9c.png; http://inspirehep.net/record/1608615/files/fig_28b.png; http://inspirehep.net/record/1608615/files/fig_29c.png; http://inspirehep.net/record/1608615/files/fig_9d.png; http://inspirehep.net/record/1608615/files/fig_48.png; http://inspirehep.net/record/1608615/files/fig_31a.png; http://inspirehep.net/record/1608615/files/fig_4.png; http://inspirehep.net/record/1608615/files/fig_10.png; http://inspirehep.net/record/1608615/files/fig_29a.png; http://inspirehep.net/record/1608615/files/fig_6.png; http://inspirehep.net/record/1608615/files/fig_13a.png; http://inspirehep.net/record/1608615/files/fig_13b.png; http://inspirehep.net/record/1608615/files/fig_30b.png; http://inspirehep.net/record/1608615/files/fig_31b.png; http://inspirehep.net/record/1608615/files/fig_30a.png; 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Note: 50 pages, 50 figures

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