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Updated T2K measurements of muon neutrino and antineutrino disappearance using 1.5 x10 21 protons on target

Abe, K. and Amey, J. and Andreopoulos, C. and Antonova, M. and Aoki, S. and Ariga, A. and Ashida, Y. and Autiero, D. and Ban, S. and Barbi, M. and Barker, G. J. and Barr, G. and Barry, C. and Bartet-Friburg, P. and Batkiewicz, M. and Berardi, V. and Berkman, S. and Bhadra, S. and Bienstock, S. and Blondel, A. and Bolognesi, S. and Bordoni, S. and Brailsford, D. and Bravar, A. and Bronner, C. and Avanzini, M. Buizza and Calland, R. G. and Campbell, T. and Cao, S. and Catanesi, M. G. and Cervera, A. and Chappell, A. and Checchia, C. and Cherdack, D. and Chikuma, N. and Christodoulou, G. and Coleman, J. and Collazuol, G. and Coplowe, D. and Cudd, A. and Dabrowska, A. and Rosa, G. De and Dealtry, T. and Denner, P. F. and Dennis, S. R. and Densham, C. and Dewhurst, D. and Lodovico, F. Di and Dolan, S. and Drapier, O. and Duffy, K. E. and Dumarchez, J. and Dunne, P. and Dziewiecki, M. and Emery-Schrenk, S. and Ereditato, A. and Feusels, T. and Finch, A. J. and Fiorentini, G. A. and Friend, M. and Fujii, Y. and Fukuda, D. and Fukuda, Y. and Galymov, V. and Giganti, C. and Gizzarelli, F. and Golan, T. and Gonin, M. and Hadley, D. R. and Haegel, L. and Hansen, D. and Harada, J. and Hartz, M. and Hasegawa, T. and Hastings, N. C. and Hayashino, T. and Hayato, Y. and Helmer, R. L. and Hillairet, A. and Hiraki, T. and Hiramoto, A. and Hirota, S. and Hogan, M. and Holeczek, J. and Hosomi, F. and Huang, K. and Ichikawa, A. K. and Ikeda, M. and Imber, J. and Insler, J. and Intonti, R. A. and Ishida, T. and Ishii, T. and Iwai, E. and Iwamoto, K. and Izmaylov, A. and Jamieson, B. and Jiang, M. and Jonsson, P. and Kabirnezhad, M. and Kaboth, A. C. and Kajita, T. and Kakuno, H. and Kameda, J. and Karlen, D. and Katori, T. and Kearns, E. and Khabibullin, M. and Khotjantsev, A. and Kisiel, J. and Knight, A. and Knox, A. and Kobayashi, T. and Koch, L. and Koga, T. and Koller, P. P. and Konaka, A. and Kormos, L. L. and Korzenev, A. and Koshio, Y. and Kowalik, K. and Kropp, W. and Kudenko, Y. and Kurjata, R. and Kutter, T. and Lagoda, J. and Lamont, I. and Lamoureux, M. and Larkin, E. and Lasorak, P. and Laveder, M. and Lawe, M. and Licciardi, M. and Lindner, T. and Liptak, Z. J. and Litchfield, R. P. and Longhin, A. and Lopez, J. P. and Lou, T. and Ludovici, L. and Lu, X. and Magaletti, L. and Mahn, K. and Malek, M. and Manly, S. and Maret, L. and Marino, A. D. and Martins, P. and Martynenko, S. and Maruyama, T. and Matveev, V. and Mavrokoridis, K. and Mazzucato, E. and McCarthy, M. and McCauley, N. and McFarland, K. S. and McGrew, C. and Mefodiev, A. and Metelko, C. and Mezzetto, M. and Mijakowski, P. and Minamino, A. and Mineev, O. and Mine, S. and Missert, A. and Miura, M. and Moriyama, S. and Morrison, J. and Mueller, Th A. and Myslik, J. and Nakadaira, T. and Nakahata, M. and Nakamura, K. G. and Nakamura, K. and Nakamura, K. D. and Nakanishi, Y. and Nakayama, S. and Nakaya, T. and Nakayoshi, K. and Nantais, C. and Nielsen, C. and Nirkko, M. and Nishikawa, K. and Nishimura, Y. and Novella, P. and Nowak, J. and O'Keeffe, H. M. and Okusawa, T. and Oryszczak, W. and Oser, S. M. and Ovsyannikova, T. and Oyama, Y. and Palladino, V. and Palomino, J. L. and Paolone, V. and Patel, N. D. and Paudyal, P. and Pavin, M. and Payne, D. and Perkin, J. D. and Petrov, Y. and Pickard, L. and Guerra, E. S. Pinzon and Pistillo, C. and Popov, B. and Posiadala-Zezula, M. and Poutissou, J. -M. and Poutissou, R. and Przewlocki, P. and Quilain, B. and Radermacher, T. and Radicioni, E. and Ratoff, P. N. and Ravonel, M. and Rayner, M. A. and Redij, A. and Reinherz-Aronis, E. and Riccio, C. and Rondio, E. and Rossi, B. and Roth, S. and Rubbia, A. and Ruggeri, A. C. and Rychter, A. and Sakashita, K. and Sánchez, F. and Scantamburlo, E. and Scholberg, K. and Schwehr, J. and Seiya, Y. and Sekiguchi, T. and Sekiya, H. and Sgalaberna, D. and Shaikhiev, A. and Shaker, F. and Shaw, D. and Shiozawa, M. and Shirahige, T. and Smy, M. and Sobczyk, J. T. and Sobel, H. and Sorel, M. and Southwell, L. and Steinmann, J. and Stewart, T. and Stowell, P. and Suda, Y. and Suvorov, S. and Suzuki, A. and Suzuki, S. Y. and Suzuki, Y. and Tacik, R. and Tada, M. and Takeda, A. and Tamura, R. and Tanaka, H. K. and Tanaka, H. A. and Terhorst, D. and Terri, R. and Thakore, T. and Tobayama, S. and Toki, W. and Tomura, T. and Touramanis, C. and Tsukamoto, T. and Tzanov, M. and Uchida, Y. and Vagins, M. and Vallari, Z. and Vasseur, G. and Vilela, C. and Vladisavljevic, T. and Wachala, T. and Wark, D. and Wascko, M. O. and Weber, A. and Wendell, R. and Wilkes, R. J. and Wilking, M. J. and Wret, C. and Yamamoto, K. and Yamamoto, M. and Yanagisawa, C. and Yano, T. and Yen, S. and Yershov, N. and Yokoyama, M. and Yoshida, K. and Yuan, T. and Yu, M. and Zalewska, A. and Zalipska, J. and Zambelli, L. and Zaremba, K. and Ziembicki, M. and Zimmerman, E. D. and Zito, M. and Żmuda, J. (2017) Updated T2K measurements of muon neutrino and antineutrino disappearance using 1.5 x10 21 protons on target. Physical Review D, 96 (1). ISSN 1550-7998

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    Abstract

    We report measurements by the T2K experiment of the parameters $\theta_{23}$ and $\Delta m^{2}_{32}$ governing the disappearance of muon neutrinos and antineutrinos in the three flavor neutrino oscillation model. Utilizing the ability of the experiment to run with either a mainly neutrino or a mainly antineutrino beam, the parameters are measured separately for neutrinos and antineutrinos. Using $7.482 \times 10^{20}$ POT in neutrino running mode and $7.471 \times 10^{20}$ POT in antineutrino mode, T2K obtained, $\sin^{2}(\theta_{23})=0.51^{+0.08}_{-0.07}$ and $\Delta m^{2}_{32} = 2.53^{+0.15}_{-0.13} \times 10^{-3}$eV$^{2}$/c$^{4}$ for neutrinos, and $\sin^{2}({\overline{\theta}}_{23})=0.42^{+0.25}_{-0.07}$ and ${\Delta\overline{m}^2}_{32} = 2.55^{+0.33}_{-0.27} \times 10^{-3}$eV$^{2}$/c$^{4}$ for antineutrinos (assuming normal mass ordering). No significant differences between the values of the parameters describing the disappearance of muon neutrinos and antineutrinos were observed.

    Item Type: Article
    Journal or Publication Title: Physical Review D
    Subjects:
    Departments: Faculty of Science and Technology > Physics
    ID Code: 87048
    Deposited By: ep_importer_pure
    Deposited On: 13 Jul 2017 16:26
    Refereed?: Yes
    Published?: Published
    Last Modified: 24 Nov 2017 07:23
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/87048

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