Neutrino oscillation physics potential of the T2K experiment

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Abe, K, Adam, J, Aihara, H, Akiri, T, Andreopoulos, C ORCID: 0000-0003-2020-8215, Aoki, S, Ariga, A, Assylbekov, S, Autiero, D, Barbi, M et al (show 335 more authors) , Barker, GJ, Barr, G, Bartet-Friburg, P, Bass, M, Batkiewicz, M, Bay, F, Berardi, V, Berger, BE, Berkman, S, Bhadra, S, Blaszczyk, FDM, Blondel, A, Bojechko, C, Bordoni, S, Boyd, SB, Brailsford, D, Bravar, A, Bronner, C, Buchanan, N, Calland, RG, Rodriguez, J Caravaca, Cartwright, SL, Castillo, R, Catanesi, MG, Cervera, A, Cherdack, D, Christodoulou, G, Clifton, A, Coleman, J ORCID: 0000-0003-1319-0889, Coleman, SJ, Collazuol, G, Connolly, K, Cremonesi, L, Dabrowska, A, Danko, I, Das, R, Davis, S, de Perio, P, De Rosa, G, Dealtry, T, Dennis, SR, Densham, C, Dewhurst, D, Di Lodovico, F, Di Luise, S, Drapier, O, Duboyski, T, Duffy, K, Dumarchez, J, Dytman, S, Dziewiecki, M, Emery-Schrenk, S, Ereditato, A, Escudero, L, Feusels, T, Finch, AJ, Fiorentini, GA, Friend, M, Fujii, Y, Fukuda, Y, Furmanski, AP, Galymov, V, Garcia, A, Giffin, S, Giganti, C, Gilje, K, Goeldi, D, Golan, T, Gonin, M, Grant, N, Gudin, D, Hadley, DR, Haegel, L, Haesler, A, Haigh, MD, Hamilton, P, Hansen, D, Hara, T, Hartz, M, Hasegawa, T, Hastings, NC, Hayashino, T, Hayato, Y, Hearty, C, Helmer, RL, Hierholzer, M, Hignight, J, Hillairet, A, Himmel, A, Hiraki, T, Hirota, S, Holeczek, J, Horikawa, S, Huang, K, Ichikawa, AK, Ieki, K, Ieva, M, Ikeda, M, Imber, J, Insler, J, Irvine, TJ, Ishida, T, Ishii, T, Iwai, E, Iwamoto, K, Iyogi, K, Izmaylov, A, Jacob, A, Jamieson, B, Johnson, RA, Johnson, S, Jo, JH, Jonsson, P, Jung, CK, Kabirnezhad, M, Kaboth, AC, Kajita, T, Kakuno, H, Kameda, J, Kanazawa, Y, Karlen, D, Karpikov, I, Katori, T, Kearns, E, Khabibullin, M, Khotjantsev, A, Kielczewska, D, Kikawa, T, Kilinski, A, Kim, J, King, S, Kisiel, J, Kitching, P, Kobayashi, T, Koch, L, Koga, T, Kolaceke, A, Konaka, A, Kormos, LL, Korzenev, A, Koshio, Y, Kropp, W, Kubo, H, Kudenko, Y, Kurjata, R, Kutter, T, Lagoda, J, Laihem, K, Lamont, I, Larkin, E, Laveder, M, Lawe, M, Lazos, M, Lindner, T, Lister, C, Litchfield, RP, Longhin, A, Lopez, JP, Ludovici, L, Magaletti, L, Mahn, K, Malek, M, Manly, S, Marino, AD, Marteau, J, Martin, JF, Martins, P, Martynenko, S, Maruyama, T, Matveev, V, Mavrokoridis, K ORCID: 0000-0002-9244-4519, Mazzucato, E, McCarthy, M, McCauley, N ORCID: 0000-0002-5982-5125, McFarland, KS, McGrew, C, Mefodiev, A, Metelko, C, Mezzetto, M, Mijakowski, P, Miller, CA, Minamino, A, Mineev, O, Missert, A, Miura, M, Moriyama, S, Mueller, Th A, Murakami, A, Murdoch, M, Murphy, S, Myslik, J, Nakadaira, T, Nakahata, M, Nakamura, KG, Nakamura, K, Nakayama, S, Nakaya, T, Nakayoshi, K, Nantais, C, Nielsen, C, Nirkko, M, Nishikawa, K, Nishimura, Y, Nowak, J, O'Keeffe, HM, Ohta, R, Okumura, K, Okusawa, T, Oryszczak, W, Oser, SM, Ovsyannikova, T, Owen, RA, Oyama, Y, Palladino, V, Palomino, JL, Paolone, V, Payne, D ORCID: 0000-0002-8520-5210, Perevozchikov, O, Perkin, JD, Petrov, Y, Pickard, L, Guerra, ES Pinzon, Pistillo, C, Plonski, P, Poplawska, E, Popov, B, Posiadala-Zezula, M, Poutissou, J-M, Poutissou, R, Przewlocki, P, Quilain, B, Radicioni, E, Ratoff, PN, Ravonel, M, Rayner, MAM, Redij, A, Reeves, M, Reinherz-Aronis, E, Riccio, C, Rodrigues, PA, Rojas, P, Rondio, E, Roth, S, Rubbia, A, Ruterbories, D, Sacco, R, Sakashita, K, Sanchez, F, Sato, F, Scantamburlo, E, Scholberg, K, Schoppmann, S, Schwehr, J, Scott, M, Seiya, Y, Sekiguchi, T, Sekiya, H, Sgalaberna, D, Shah, R, Shaker, F, Shiozawa, M, Short, S, Shustrov, Y, Sinclair, P, Smith, B, Smy, M, Sobczyk, JT, Sobel, H, Sorel, M, Southwell, L, Stamoulis, P, Steinmann, J, Still, B, Suda, Y, Suzuki, A, Suzuki, K, Suzuki, SY, Suzuki, Y, Tacik, R, Tada, M, Takahashi, S, Takeda, A, Takeuchi, Y, Tanaka, HK, Tanaka, HA, Tanaka, MM, Terhorst, D, Terri, R, Thompson, LF, Thorley, A, Tobayama, S, Toki, W, Tomura, T, Totsuka, Y, Touramanis, C ORCID: 0000-0001-5191-2171, Tsukamoto, T, Tzanov, M, Uchida, Y, Vacheret, A, Vagins, M, Vasseur, G, Wachala, T, Waldron, AV, Wakamatsu, K, Walter, CW, Wark, D, Warzycha, W, Wascko, MO, Weber, A, Wendell, R, Wilkes, RJ, Wilking, MJ, Wilkinson, C, Williamson, Z, Wilson, JR, Wilson, RJ, Wongjirad, T, Yamada, Y, Yamamoto, K, Yanagisawa, C, Yano, T, Yen, S, Yershov, N, Yokoyama, M, Yoshida, K, Yuan, T, Yu, M, Zalewska, A, Zalipska, J, Zambelli, L, Zaremba, K, Ziembicki, M, Zimmerman, ED, Zito, M and Zmuda, J (2015) Neutrino oscillation physics potential of the T2K experiment PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS, 2015 (4). 043c01-. ISSN 2050-3911, 2050-3911

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Abstract

The observation of the recent electron neutrino appearance in a muon neutrino beam and the high-precision measurement of the mixing angle Θ<inf>13</inf> have led to a re-evaluation of the physics potential of the T2K long-baseline neutrino oscillation experiment. Sensitivities are explored for CP violation in neutrinos, non-maximal sin² 2Θ<inf>23</inf>, the octant of Θ<inf>23</inf>, and the mass hierarchy, in addition to the measurements of δ<inf>CP</inf>, sin² Θ<inf>23</inf>, and Δm² <inf>32</inf>, for various combinations of ν-mode and ν-mode data-taking. With an exposure of 7.8 × 10²¹ protons-on-target, T2K can achieve 1 σ resolution of 0.050 (0.054) on sin² Θ<inf>23</inf> and 0.040 (0.045) × 10^-3 eV² on Δm² <inf>32</inf> for 100% (50%) neutrino beam mode running assuming sin² Θ<inf>23</inf> = 0.5 and Δm² <inf>32</inf> = 2.4 × 10^-3 eV². T2K will have sensitivity to the CP-violating phase δ<inf>CP</inf> at 90% C.L. or better over a significant range. For example, if sin² 2Θ<inf>23</inf> is maximal (i.e. Θ<inf>23</inf> = 45°) the range is -115° < δ<inf>CP</inf> < -60° for normal hierarchy and +50° < δ<inf>CP</inf> < +130° for inverted hierarchy. When T2K data is combined with data from the NOνA experiment, the region of oscillation parameter space where there is sensitivity to observe a non-zero δ<inf>CP</inf> is substantially increased compared to if each experiment is analyzed alone.

Item Type:	Article
Additional Information:	40 pages, 27 figures, accepted by PTEP
Uncontrolled Keywords:	hep-ex, hep-ex
Depositing User:	Symplectic Admin
Date Deposited:	05 Apr 2016 10:10
Last Modified:	16 Jun 2026 09:45
DOI:	10.1093/ptep/ptv031
Related Websites:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3000004
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