CERN Accelerating science

Article
Report number arXiv:2008.07921
Title T2K measurements of muon neutrino and antineutrino disappearance using $3.13\times 10^{21}$ protons on target
Author(s)

Abe, K. (Kamioka Observ.) ; Akhlaq, N. (Queen Mary, U. of London) ; Akutsu, R. (Tokyo U., ICRR) ; Ali, A. (Kyoto U.) ; Alt, C. (Zurich, ETH) ; Andreopoulos, C. (Rutherford ; Liverpool U.) ; Antonova, M. (Valencia U., IFIC) ; Aoki, S. (Kobe U.) ; Arihara, T. (Tokyo Metropolitan U.) ; Asada, Y. (Yokohama Natl. U.) ; Ashida, Y. (Kyoto U.) ; Atkin, E.T. (Imperial Coll., London) ; Awataguchi, Y. (Tokyo Metropolitan U.) ; Barker, G.J. (Warwick U.) ; Barr, G. (Oxford U.) ; Barrow, D. (Oxford U.) ; Batkiewicz-Kwasniak, M. (Cracow, INP) ; Beloshapkin, A. (Moscow, INR) ; Bench, F. (Liverpool U.) ; Berardi, V. (Bari Polytechnic ; INFN, Bari) ; Berns, L. (Tokyo Inst. Tech.) ; Bhadra, S. (York U., Canada) ; Bolognesi, S. (IRFU, Saclay) ; Bonus, T. (Wroclaw U.) ; Bourguille, B. (Barcelona, IFAE) ; Boyd, S.B. (Warwick U.) ; Bravar, A. (Geneva U.) ; BravoBerguno, D. ; Bronner, C. (Kamioka Observ.) ; Bron, S. (Geneva U.) ; Bubak, A. (Silesia U.) ; BuizzaAvanzini, M. ; Cao, S. (KEK, Tsukuba) ; Cartwright, S.L. (Sheffield U.) ; Catanesi, M.G. (Bari Polytechnic ; INFN, Bari) ; Cervera, A. (Valencia U., IFIC) ; Cherdack, D. (Houston U.) ; Christodoulou, G. (CERN) ; Cicerchia, M. (INFN, Legnaro ; INFN, Padua ; Padua U.) ; Coleman, J. (Liverpool U.) ; Collazuol, G. (INFN, Padua ; Padua U.) ; Cook, L. (Oxford U. ; Tokyo U., IPMU) ; Coplowe, D. (Oxford U.) ; Cudd, A. (Colorado U.) ; DeRosa, G. ; Dealtry, T. (Lancaster U.) ; Delogu, C.C. (INFN, Padua ; Padua U.) ; Dennis, S.R. (Liverpool U.) ; Densham, C. (Rutherford) ; Di Lodovico, F. (King's Coll. London) ; Dolan, S. (CERN) ; Doyle, T.A. (Lancaster U.) ; Dumarchez, J. (Paris U., VI-VII) ; Dunne, P. (Imperial Coll., London) ; Eguchi, A. (Tokyo U.) ; Eklund, L. (Glasgow U.) ; Emery-Schrenk, S. (IRFU, Saclay) ; Ereditato, A. (U. Bern, AEC) ; Finch, A.J. (Lancaster U.) ; Fiorentini, G.A. (York U., Canada) ; Francois, C. (U. Bern, AEC) ; Friend, M. (JAEA, Ibaraki ; KEK, Tsukuba) ; Fujii, Y. (JAEA, Ibaraki ; KEK, Tsukuba) ; Fukuda, R. (Tokyo U. of Sci., Noda Campus) ; Fukuda, Y. (Miyagi U. of Education) ; Fusshoeller, K. (Zurich, ETH) ; Giganti, C. (Paris U., VI-VII) ; Gonin, M. (Ecole Polytechnique) ; Gorin, A. (Moscow, INR) ; Guigue, M. (Paris U., VI-VII) ; Hadley, D.R. (Warwick U.) ; Hamacher-Baumann, P. (Aachen, Tech. Hochsch.) ; Hartz, M. (TRIUMF ; Tokyo U., IPMU) ; Hasegawa, T. (JAEA, Ibaraki ; KEK, Tsukuba) ; Hassani, S. (IRFU, Saclay) ; Hastings, N.C. (KEK, Tsukuba) ; Hayato, Y. (Kamioka Observ. ; Tokyo U., IPMU) ; Hiramoto, A. (Kyoto U.) ; Hogan, M. (Colorado State U.) ; Holeczek, J. (Silesia U.) ; HongVan, N.T. ; Honjo, T. (Osaka City U.) ; Iacob, F. (INFN, Padua ; Padua U.) ; Ichikawa, A.K. (Kyoto U.) ; Ikeda, M. (Kamioka Observ.) ; Ishida, T. (JAEA, Ibaraki ; KEK, Tsukuba) ; Ishitsuka, M. (Tokyo U. of Sci., Noda Campus) ; Iwamoto, K. (Tokyo U.) ; Izmaylov, A. (Moscow, INR) ; Izumi, N. (Tokyo U. of Sci., Noda Campus) ; Jakkapu, M. (KEK, Tsukuba) ; Jamieson, B. (Winnipeg U.) ; Jenkins, S.J. (Sheffield U.) ; Jesús-Valls, C. (Barcelona, IFAE) ; Jonsson, P. (Imperial Coll., London) ; Junjie, X. (Tokyo U., ICRR) ; Jurj, P.B. (Imperial Coll., London) ; Kabirnezhad, M. (Oxford U.) ; Kakuno, H. (Tokyo Metropolitan U.) ; Kameda, J. (Kamioka Observ.) ; Abe, S.P.K. ; Blondel, A. ; Bravo Berguño, D. (Madrid, Autonoma U.) ; Buizza Avanzini, M. (Ecole Polytechnique) ; De Rosa, G. (INFN, Naples ; Naples U.) ; Dergacheva, A. ; Harris, D.A. ; Hong Van, N.T. (IFIRSE, Quy Nhon ; Hanoi, Inst. Phys.) ; Jung, C.K. ; Kasetti, S.P. (Louisiana State U.) ; Kataoka, Y. (Kamioka Observ.) ; Katayama, Y. (Yokohama Natl. U.) ; Katori, T. (King's Coll. London) ; Kearns, E. (Tokyo U., IPMU ; Boston U.) ; Khabibullin, M. (Moscow, INR) ; Khotjantsev, A. (Moscow, INR) ; Kikawa, T. (Kyoto U.) ; Kikutani, H. (Tokyo U.) ; King, S. (King's Coll. London) ; Kisiel, J. (Silesia U.) ; Kobata, T. (Osaka City U.) ; Kobayashi, T. (JAEA, Ibaraki ; KEK, Tsukuba) ; Koch, L. (Oxford U.) ; Konaka, A. (TRIUMF) ; Kormos, L.L. (Lancaster U.) ; Koshio, Y. (Tokyo U., IPMU ; Okayama U.) ; Kostin, A. (Moscow, INR) ; Kowalik, K. (NCBJ, Swierk) ; Kudenko, Y. (Moscow, MIPT ; Moscow Phys. Eng. Inst. ; Moscow, INR) ; Kuribayashi, S. (Kyoto U.) ; Kurjata, R. (Warsaw U. of Tech.) ; Kutter, T. (Louisiana State U.) ; Kuze, M. (Tokyo Inst. Tech.) ; Labarga, L. (Madrid, Autonoma U.) ; Lagoda, J. (NCBJ, Swierk) ; Lamoureux, M. (INFN, Padua ; Padua U.) ; Last, D. (Pennsylvania U.) ; Lawe, M. (Lancaster U.) ; Litchfield, R.P. (Glasgow U.) ; Liu, S.L. (SUNY, Stony Brook) ; Longhin, A. (INFN, Padua ; Padua U.) ; Ludovici, L. (INFN, Rome ; Rome U.) ; Lu, X. (Oxford U.) ; Lux, T. (Barcelona, IFAE) ; Machado, L.N. (INFN, Naples ; Naples U.) ; Magaletti, L. (Bari Polytechnic ; INFN, Bari) ; Mahn, K. (Michigan State U.) ; Malek, M. (Sheffield U.) ; Manly, S. (Rochester U.) ; Maret, L. (Geneva U.) ; Marino, A.D. (Colorado U.) ; Marti-Magro, L. (Kamioka Observ. ; Tokyo U., IPMU) ; Maruyama, T. (JAEA, Ibaraki ; KEK, Tsukuba) ; Matsubara, T. (KEK, Tsukuba) ; Matsushita, K. (Tokyo U.) ; Mauger, C. (Pennsylvania U.) ; Mavrokoridis, K. (Liverpool U.) ; Mazzucato, E. (IRFU, Saclay) ; McCauley, N. (Liverpool U.) ; McElwee, J. (Sheffield U.) ; McFarland, K.S. (Rochester U.) ; McGrew, C. (SUNY, Stony Brook) ; Mefodiev, A. (Moscow, INR) ; Mezzetto, M. (INFN, Padua ; Padua U.) ; Minamino, A. (Yokohama Natl. U.) ; Mineev, O. (Moscow, INR) ; Mine, S. (UC, Irvine) ; Miura, M. (Tokyo U., IPMU ; Kamioka Observ.) ; Molina Bueno, L. (Zurich, ETH) ; Moriyama, S. (Tokyo U., IPMU ; Kamioka Observ.) ; Mueller, Th.A. (Ecole Polytechnique) ; Munteanu, L. (IRFU, Saclay) ; Nagai, Y. (Colorado U.) ; Nakadaira, T. (JAEA, Ibaraki ; KEK, Tsukuba) ; Nakahata, M. (Kamioka Observ. ; Tokyo U., IPMU) ; Nakajima, Y. (Kamioka Observ.) ; Nakamura, A. (Okayama U.) ; Nakamura, K. (JAEA, Ibaraki ; Tokyo U., IPMU ; KEK, Tsukuba) ; Nakano, Y. (Kobe U.) ; Nakayama, S. (Kamioka Observ. ; Tokyo U., IPMU) ; Nakaya, T. (Kyoto U. ; Tokyo U., IPMU) ; Nakayoshi, K. (JAEA, Ibaraki ; KEK, Tsukuba) ; Naseby, C.E.R. (Imperial Coll., London) ; Ngoc, T.V. (GUST, Hanoi ; IFIRSE, Quy Nhon) ; Nguyen, V.Q. (Paris U., VI-VII) ; Niewczas, K. (Wroclaw U.) ; Nishimura, Y. (Keio U.) ; Noah, E. (Geneva U.) ; Nonnenmacher, T.S. (Imperial Coll., London) ; Nova, F. (Rutherford) ; Nowak, J. (Lancaster U.) ; Nugent, J.C. (Glasgow U.) ; O'Keeffe, H.M. (Lancaster U.) ; O'Sullivan, L. (Sheffield U.) ; Odagawa, T. (Kyoto U.) ; Ogawa, T. (KEK, Tsukuba) ; Okada, R. (Okayama U.) ; Okumura, K. (Tokyo U., ICRR ; Tokyo U., IPMU) ; Okusawa, T. (Osaka City U.) ; Owen, R.A. (Queen Mary, U. of London) ; Oyama, Y. (JAEA, Ibaraki ; KEK, Tsukuba) ; Palladino, V. (INFN, Naples ; Naples U.) ; Paolone, V. (Pittsburgh U.) ; Pari, M. (INFN, Padua ; Padua U.) ; Parker, W.C. (Royal Holloway, U. of London) ; Parsa, S. (Geneva U.) ; Pasternak, J. (Imperial Coll., London) ; Pavin, M. (TRIUMF) ; Payne, D. (Liverpool U.) ; Penn, G.C. (Liverpool U.) ; Pickering, L. (Michigan State U.) ; Pidcott, C. (Sheffield U.) ; Pintaudi, G. (Yokohama Natl. U.) ; Pistillo, C. (U. Bern, AEC) ; Popov, B. (Dubna, JINR ; Paris U., VI-VII) ; Porwit, K. (Silesia U.) ; Posiadala-Zezula, M. (Warsaw U.) ; Pritchard, A. (Liverpool U.) ; Quilain, B. (Ecole Polytechnique) ; Radermacher, T. (Aachen, Tech. Hochsch.) ; Radicioni, E. (Bari Polytechnic ; INFN, Bari) ; Radics, B. (Zurich, ETH) ; Ratoff, P.N. (Lancaster U.) ; Riccio, C. (SUNY, Stony Brook) ; Rondio, E. (NCBJ, Swierk) ; Roth, S. (Aachen, Tech. Hochsch.) ; Rubbia, A. ; Ruggeri, A.C. (INFN, Naples ; Naples U.) ; Ruggles, C. (Glasgow U.) ; Rychter, A. (Warsaw U. of Tech.) ; Sakashita, K. (JAEA, Ibaraki ; KEK, Tsukuba) ; Sánchez, F. (Geneva U.) ; Santucci, G. (York U., Canada) ; Schloesser, C.M. (Zurich, ETH) ; Scholberg, K. (Tokyo U., IPMU ; Duke U.) ; Scott, M. (Imperial Coll., London) ; Seiya, Y. (Dubna, JINR ; Osaka City U.) ; Sekiguchi, T. (JAEA, Ibaraki ; KEK, Tsukuba) ; Sekiya, H. (Tokyo U., IPMU ; Kamioka Observ.) ; Sgalaberna, D. (Zurich, ETH) ; Shaikhiev, A. (Moscow, INR) ; Shaykina, A. (Moscow, INR) ; Shiozawa, M. (Kamioka Observ. ; Tokyo U., IPMU) ; Shorrock, W. (Imperial Coll., London) ; Shvartsman, A. (Moscow, INR) ; Skwarczynski, K. (NCBJ, Swierk) ; Smy, M. (UC, Irvine) ; Sobczyk, J.T. (Wroclaw U.) ; Sobel, H. (UC, Irvine ; Tokyo U., IPMU) ; Soler, F.J.P. (Glasgow U.) ; Sonoda, Y. (Kamioka Observ.) ; Spina, R. ; Suvorov, S. (Moscow, INR ; IRFU, Saclay) ; Suzuki, A. (Kobe U.) ; Suzuki, S.Y. (JAEA, Ibaraki ; KEK, Tsukuba) ; Suzuki, Y. (Tokyo U., IPMU) ; Sztuc, A.A. (Imperial Coll., London) ; Tada, M. (JAEA, Ibaraki ; KEK, Tsukuba) ; Tajima, M. (Kyoto U.) ; Takeda, A. (Kamioka Observ.) ; Takeuchi, Y. (Kobe U. ; Tokyo U., IPMU) ; Tanaka, H.K. (Tokyo U., IPMU ; Kamioka Observ.) ; Tanihara, Y. (Yokohama Natl. U.) ; Tani, M. (Kyoto U.) ; Teshima, N. (Osaka City U.) ; Thompson, L.F. (Sheffield U.) ; Toki, W. (Colorado State U.) ; Touramanis, C. (Liverpool U.) ; Towstego, T. (Toronto U.) ; Tsui, K.M. (Liverpool U.) ; Tsukamoto, T. (JAEA, Ibaraki ; KEK, Tsukuba) ; Tzanov, M. (Louisiana State U.) ; Uchida, Y. (Imperial Coll., London) ; Vagins, M. (Tokyo U., IPMU ; UC, Irvine) ; Valder, S. (Warwick U.) ; Vargas, D. (Barcelona, IFAE) ; Vasseur, G. (IRFU, Saclay) ; Vilela, C. ; Vinning, W.G.S. (Warwick U.) ; Vladisavljevic, T. (Rutherford) ; Wachala, T. (Cracow, INP) ; Walker, J. (Winnipeg U.) ; Walsh, J.G. (Lancaster U.) ; Wang, Y. (SUNY, Stony Brook) ; Wark, D. (Rutherford ; Oxford U.) ; Wascko, M.O. (Imperial Coll., London) ; Weber, A. (Rutherford ; Oxford U.) ; Wendell, R. (Tokyo U., IPMU ; Kyoto U.) ; Wilking, M.J. (SUNY, Stony Brook) ; Wilkinson, C. (U. Bern, AEC) ; Wilson, J.R. (King's Coll. London) ; Wood, K. (SUNY, Stony Brook) ; Wret, C. (Rochester U.) ; Xia, J. ; Yamamoto, K. (Dubna, JINR ; Osaka City U.) ; Yanagisawa, C. (BMCC, New York ; SUNY, Stony Brook) ; Yang, G. (SUNY, Stony Brook) ; Yano, T. (Kamioka Observ.) ; Yasutome, K. (Kyoto U.) ; Yershov, N. (Moscow, INR) ; Yokoyama, M. (Tokyo U., IPMU ; Tokyo U.) ; Yoshida, T. (Tokyo Inst. Tech.) ; Yoshimoto, Y. ; Yu, M. (York U., Canada) ; Zalewska, A. (Cracow, INP) ; Zalipska, J. (NCBJ, Swierk) ; Zaremba, K. (Warsaw U. of Tech.) ; Zarnecki, G. (NCBJ, Swierk) ; Ziembicki, M. (Warsaw U. of Tech.) ; Zito, M. (Paris U., VI-VII) ; Zsoldos, S. (King's Coll. London)

Publication 2021-01-27
Imprint 2020-08-18
Number of pages 9
In: Phys. Rev. D 103 (2021) L011101
DOI 10.1103/PhysRevD.103.L011101
Subject category hep-ex ; Particle Physics - Experiment
Accelerator/Facility, Experiment T2K
Abstract We report measurements by the T2K experiment of the parameters $\theta_{23}$ and $\Delta m^2_{32}$ which govern the disappearance of muon neutrinos and antineutrinos in the three-flavor PMNS neutrino oscillation model at T2K's neutrino energy and propagation distance. Utilizing the ability of the experiment to run with either a mainly neutrino or a mainly antineutrino beam, muon-like events from each beam mode are used to measure these parameters separately for neutrino and antineutrino oscillations. Data taken from $1.49 \times 10^{21}$ protons on target (POT) in neutrino mode and $1.64 \times 10^{21}$ POT in antineutrino mode are used. The best-fit values obtained by T2K were $\sin^2\left(\theta_{23}\right)=0.51^{+0.06}_{-0.07} \left(0.43^{+0.21}_{-0.05}\right)$ and $\Delta m^2_{32}=2.47^{+0.08}_{-0.09} \left(2.50^{+0.18}_{-0.13}\right)$\evmass for neutrinos (antineutrinos). No significant differences between the values of the parameters describing the disappearance of muon neutrinos and antineutrinos were observed. An analysis using an effective two-flavor neutrino oscillation model where the sine of the mixing angle is allowed to take non-physical values larger than 1 is also performed to check the consistency of our data with the three-flavor model. Our data were found to be consistent with a physical value for the mixing angle.
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