T2K measurements of muon neutrino and antineutrino disappearance using $3.13\times 10^{21}$ protons on target

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 t...

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Detalles Bibliográficos
Autores principales: Abe, K., Akhlaq, N., Akutsu, R., Ali, A., Alt, C., Andreopoulos, C., Antonova, M., Aoki, S., Arihara, T., Asada, Y., Ashida, Y., Atkin, E.T., Awataguchi, Y., Barker, G.J., Barr, G., Barrow, D., Batkiewicz-Kwasniak, M., Beloshapkin, A., Bench, F., Berardi, V., Berns, L., Bhadra, S., Bolognesi, S., Bonus, T., Bourguille, B., Boyd, S.B., Bravar, A., BravoBerguno, D., Bronner, C., Bron, S., Bubak, A., BuizzaAvanzini, M., Cao, S., Cartwright, S.L., Catanesi, M.G., Cervera, A., Cherdack, D., Christodoulou, G., Cicerchia, M., Coleman, J., Collazuol, G., Cook, L., Coplowe, D., Cudd, A., DeRosa, G., Dealtry, T., Delogu, C.C., Dennis, S.R., Densham, C., Di Lodovico, F., Dolan, S., Doyle, T.A., Dumarchez, J., Dunne, P., Eguchi, A., Eklund, L., Emery-Schrenk, S., Ereditato, A., Finch, A.J., Fiorentini, G.A., Francois, C., Friend, M., Fujii, Y., Fukuda, R., Fukuda, Y., Fusshoeller, K., Giganti, C., Gonin, M., Gorin, A., Guigue, M., Hadley, D.R., Hamacher-Baumann, P., Hartz, M., Hasegawa, T., Hassani, S., Hastings, N.C., Hayato, Y., Hiramoto, A., Hogan, M., Holeczek, J., HongVan, N.T., Honjo, T., Iacob, F., Ichikawa, A.K., Ikeda, M., Ishida, T., Ishitsuka, M., Iwamoto, K., Izmaylov, A., Izumi, N., Jakkapu, M., Jamieson, B., Jenkins, S.J., Jesús-Valls, C., Jonsson, P., Junjie, X., Jurj, P.B., Kabirnezhad, M., Kakuno, H., Kameda, J., Abe, S.P.K., Blondel, A., Bravo Berguño, D., Buizza Avanzini, M., De Rosa, G., Dergacheva, A., Harris, D.A., Hong Van, N.T., Jung, C.K., Kasetti, S.P., Kataoka, Y., Katayama, Y., Katori, T., Kearns, E., Khabibullin, M., Khotjantsev, A., Kikawa, T., Kikutani, H., King, S., Kisiel, J., Kobata, T., Kobayashi, T., Koch, L., Konaka, A., Kormos, L.L., Koshio, Y., Kostin, A., Kowalik, K., Kudenko, Y., Kuribayashi, S., Kurjata, R., Kutter, T., Kuze, M., Labarga, L., Lagoda, J., Lamoureux, M., Last, D., Lawe, M., Litchfield, R.P., Liu, S.L., Longhin, A., Ludovici, L., Lu, X., Lux, T., Machado, L.N., Magaletti, L., Mahn, K., Malek, M., Manly, S., Maret, L., Marino, A.D., Marti-Magro, L., Maruyama, T., Matsubara, T., Matsushita, K., Mauger, C., Mavrokoridis, K., Mazzucato, E., McCauley, N., McElwee, J., McFarland, K.S., McGrew, C., Mefodiev, A., Mezzetto, M., Minamino, A., Mineev, O., Mine, S., Miura, M., Molina Bueno, L., Moriyama, S., Mueller, Th.A., Munteanu, L., Nagai, Y., Nakadaira, T., Nakahata, M., Nakajima, Y., Nakamura, A., Nakamura, K., Nakano, Y., Nakayama, S., Nakaya, T., Nakayoshi, K., Naseby, C.E.R., Ngoc, T.V., Nguyen, V.Q., Niewczas, K., Nishimura, Y., Noah, E., Nonnenmacher, T.S., Nova, F., Nowak, J., Nugent, J.C., O'Keeffe, H.M., O'Sullivan, L., Odagawa, T., Ogawa, T., Okada, R., Okumura, K., Okusawa, T., Owen, R.A., Oyama, Y., Palladino, V., Paolone, V., Pari, M., Parker, W.C., Parsa, S., Pasternak, J., Pavin, M., Payne, D., Penn, G.C., Pickering, L., Pidcott, C., Pintaudi, G., Pistillo, C., Popov, B., Porwit, K., Posiadala-Zezula, M., Pritchard, A., Quilain, B., Radermacher, T., Radicioni, E., Radics, B., Ratoff, P.N., Riccio, C., Rondio, E., Roth, S., Rubbia, A., Ruggeri, A.C., Ruggles, C., Rychter, A., Sakashita, K., Sánchez, F., Santucci, G., Schloesser, C.M., Scholberg, K., Scott, M., Seiya, Y., Sekiguchi, T., Sekiya, H., Sgalaberna, D., Shaikhiev, A., Shaykina, A., Shiozawa, M., Shorrock, W., Shvartsman, A., Skwarczynski, K., Smy, M., Sobczyk, J.T., Sobel, H., Soler, F.J.P., Sonoda, Y., Spina, R., Suvorov, S., Suzuki, A., Suzuki, S.Y., Suzuki, Y., Sztuc, A.A., Tada, M., Tajima, M., Takeda, A., Takeuchi, Y., Tanaka, H.K., Tanihara, Y., Tani, M., Teshima, N., Thompson, L.F., Toki, W., Touramanis, C., Towstego, T., Tsui, K.M., Tsukamoto, T., Tzanov, M., Uchida, Y., Vagins, M., Valder, S., Vargas, D., Vasseur, G., Vilela, C., Vinning, W.G.S., Vladisavljevic, T., Wachala, T., Walker, J., Walsh, J.G., Wang, Y., Wark, D., Wascko, M.O., Weber, A., Wendell, R., Wilking, M.J., Wilkinson, C., Wilson, J.R., Wood, K., Wret, C., Xia, J., Yamamoto, K., Yanagisawa, C., Yang, G., Yano, T., Yasutome, K., Yershov, N., Yokoyama, M., Yoshida, T., Yoshimoto, Y., Yu, M., Zalewska, A., Zalipska, J., Zaremba, K., Zarnecki, G., Ziembicki, M., Zito, M., Zsoldos, S.
Lenguaje:eng
Publicado: 2020
Materias:
hep-ex
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.103.L011101
http://cds.cern.ch/record/2746225
Descripción
Sumario: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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