Measurement of Neutrino Oscillation Parameters from Muon Neutrino Disappearance with an Off-Axis Beam

Autor: Jo, J. H., Mineev, O., Horikawa, S., McCarthy, M., Żmuda, J., Poutissou, R., Monfregola, L., Abe, K., Palladino, V., Connolly, K., Litchfield, R. P., Suzuki, K., Masliah, P., Akiri, T., Karpikov, I., Izmaylov, A., Scholberg, K., Joo, K. K., Quilain, B., Imber, J., Suzuki, Y., Macaire, M., Mueller, Th. A., Finch, A. J., Smith, B., Otani, M., Himmel, A., Adam, J., Kakuno, H., Kurjata, R., Lagoda, J., Nakayama, S., Radicioni, E., Takahashi, S., Golan, T., Nakai, T., Ratoff, P. N., Nielsen, C., Wachala, T., Bertram, I., Castillo, R., Payne, D., Hartz, M., Suzuki, A., Dziewiecki, M., Coleman, J., Nakayoshi, K., Iyogi, K., Minamino, A., Danko, I., Wilkinson, C., Yanagisawa, C., Metelko, C., Gonin, M., Kobayashi, T., Kajita, T., Sekiguchi, T., Yen, S., Wongjirad, T., Tacik, R., Bojechko, C., Shustrov, Y., Nishimura, Y., Owen, R. A., Naples, D., Missert, A., Coleman, S. J., Bay, F., Ieki, K., Konaka, A., Murakami, A., Rondio, E., Jamieson, B., Jonsson, P., Takeda, A., Dumarchez, J., Lee, K. P., Rayner, M. A. M., Paolone, V., Kropp, W., Di Lodovico, F., Smith, R. J., Lopez, G. D., Assylbekov, S., Dabrowska, A., Licciardi, C., Giffin, S., Irvine, T. J., Ravonel, M., Kikawa, T., Andreopoulos, C., Magaletti, L., Brailsford, D., Hiraki, T., Hastings, N. C., Cherdack, D., Lawe, M., Myslik, J., Hignight, J., Seiya, Y., Koshio, Y., Insler, J., Kanazawa, Y., Rubbia, A., Jung, C. K., Kutter, T., Ohta, R., Poutissou, J.-M., Okumura, K., Pistillo, Ciro, Zaremba, K., Korzenev, A., Collazuol, G., Moriyama, S., Barker, G. J., Sato, F., Haesler, A., Zambelli, L., Reeves, M., Sinclair, P., Kolaceke, A., Ruterbories, D., Wilking, M. J., Sánchez, F., Wendell, R., Kormos, L. L., Khotjantsev, A., Posiadala, M., McFarland, K. S., Huang, K., Yuan, T., Mahn, K., Nakaya, T., Hadley, D. R., Mavrokoridis, K., Escudero, L., Reinherz-Aronis, E., Hamilton, P., Emery, S., Gaudin, A., Ishii, T., Marino, A. D., Di Luise, S., Wark, D., Dennis, S. R., Caravaca Rodríguez, J., Fukuda, Y., Ueno, K., Kielczewska, D., Tomura, T., Zimmerman, E. D., Dytman, S., Petrov, Y., Zalipska, J., Gudin, D., Kameda, J., Galymov, V., Yokoyama, M., Short, S., Grant, N., Yershov, N., Bravar, A., Nakamura, K., Ieva, M., Dealtry, T., Still, B., Terri, R., Oser, S. M., Vacheret, A., Kisiel, J., Manly, S., Barbi, M., O’Keeffe, H. M., Clifton, A., Zalewska, A., McGrew, C., Khabibullin, M., Sgalaberna, D., Gomez-Cadenas, J. J., Bass, M., Bordoni, S., Frank, E., Kogan, G., Nishikawa, K., Scott, M., Autiero, D., Ives, S. J., Ziembicki, M., Miura, M., Wascko, M. O., Hansen, D., Jacob, A., Aihara, H., Tanaka, H. K., Holeczek, J., Berger, B. E., Okusawa, T., Giganti, C., Catanesi, M. G., Berkman, S., Vagins, M., Hara, T., Kitching, P., Marteau, J., Suzuki, S. Y., Helmer, R. L., Southwell, L., Johnson, R. A., Bhadra, S., Rodrigues, P. A., Nagasaki, T., Tobayama, S., Kim, S. B., Karlen, D., Miller, C. A., Hearty, C., Blaszczyk, F. D. M., Zito, M., Takeuchi, Y., Scantamburlo, E., Sorel, M., Pac, M. Y., Sakashita, K., Barr, G., Cremonesi, L., Bronner, C., Martin, J. F., Calland, R. G., Haigh, M. D., Duffy, K., Waldron, A. V., Drapier, O., Kim, J., Kubo, H., Thorley, A., Fujii, Y., Vasseur, G., De Rosa, G., Retiere, F., Poplawska, E., Tzanov, M., Tanaka, M. M., Ishida, T., Mine, S., Sekiya, H., Friend, M., Bentham, S. W., Roth, S., Terhorst, D., Redij, Asmita Ajit, Malek, M., Densham, C., Oryszczak, W., Wilkes, R. J., Kudenko, Y., Szeglowski, T., Davis, S., Schwehr, J., Curioni, A., Cartwright, S. L., Marzec, J., Laihem, K., Perkin, J. D., Hillairet, A., Dufour, F., Mijakowski, P., Kearns, E., Oyama, Y., Cervera, A., Yamamoto, K., Kreslo, Igor, Ereditato, Antonio, Wilson, R. J., Weber, A., Williamson, Z., Thompson, L. F., De Perio, P., Lindner, T., Perevozchikov, O., Smy, M., Laveder, M., Stamoulis, P., Ludovici, L., Wilson, J. R., Koseki, K., Duboyski, T., McCauley, N., Plonski, P., Longhin, A., Nakadaira, T., Ariga, Tomoko, Sobczyk, J. T., Przewlocki, P., Hasegawa, T., Totsuka, Y., Pearce, G. F., Taylor, I. J., Kumaratunga, S., Boyd, S. B., Murphy, S., Nakahata, M., Steinmann, J., Hayato, Y., Berardi, V., Kilinski, A., Kaboth, A. C., Das, R., Murdoch, M., Sobel, H., Uchida, Y., Matveev, V., Toki, W., Yamada, Y., Sacco, R., Tanaka, H. A., Walter, C. W., Lazos, M., Maruyama, T., Tsukamoto, T., Lister, C., Hierholzer, Martin, Mathie, E. L., Gilje, K., Furmanski, A. P., Ikeda, M., Lim, I. T., Robert, A., Touramanis, C., Popov, B., Mazzucato, E., Suda, Y., Christodoulou, G., Ichikawa, A. K., Blondel, A., Batkiewicz, M., Buchanan, N., Shiozawa, M., Pinzon Guerra, E. S., Aoki, S., Hirota, S., Martti, Nirkko, Tada, M.
Jazyk: angličtina
Předmět:
Popis: The T2K collaboration reports a precision measurement of muon neutrino disappearance with an off-axis neutrino beam with a peak energy of 0.6 GeV. Near detector measurements are used to constrain the neutrino flux and cross section parameters. The Super-Kamiokande far detector, which is 295 km downstream of the neutrino production target, collected data corresponding to 3.01×1020 protons on target. In the absence of neutrino oscillations, 205±17 (syst.) events are expected to be detected and only 58 muon neutrino event candidates are observed. A fit to the neutrino rate and energy spectrum assuming three neutrino flavors, normal mass hierarchy and θ23≤π/4 yields a best-fit mixing angle sin2(2θ23)=1.000 and mass splitting |Δm232|=2.44×10−3 eV2/c4. If θ23≥π/4 is assumed, the best-fit mixing angle changes to sin2(2θ23)=0.999 and the mass splitting remains unchanged.
Databáze: OpenAIRE