Atmospheric neutrino oscillation analysis with improved event reconstruction in Super-Kamiokande IV. (14th May 2019)

• Record Type: Journal Article
• Authors: Jiang, M; Abe, K; Bronner, C; Hayato, Y; Ikeda, M; Iyogi, K; Kameda, J; Kato, Y; Kishimoto, Y; Marti, L l; Miura, M; Moriyama, S; Mochizuki, T; Nakahata, M; Nakajima, Y; Nakano, Y; Nakayama, S; Okada, T; Okamoto, K; Orii, A; Pronost, G; Sekiya, H; Shiozawa, M; Sonoda, Y; Takeda, A; Takenaka, A; Tanaka, H; Yano, T; Akutsu, R; Kajita, T; Nishimura, Y; Okumura, K; Wang, R; Xia, J; Labarga, L; Fernandez, P; Blaszczyk, F d M; Kachulis, C; Kearns, E; Raaf, J L; Stone, J L; Sussman, S; Berkman, S; Bian, J; Griskevich, N J; Kropp, W R; Locke, S; Mine, S; Weatherly, P; Smy, M B; Sobel, H W; Takhistov, V; Ganezer, K S; Hill, J; Kim, J Y; Lim, I T; Park, R G; Bodur, B; Scholberg, K; Walter, C W; Gonin, M; Imber, J; Mueller, Th A; Ishizuka, T; Nakamura, T; Jang, J S; Choi, K; Learned, J G; Matsuno, S; Litchfield, R P; Uchida, Y; Wascko, M O; Calabria, N F; Catanesi, M G; Intonti, R A; Radicioni, E; De Rosa, G; Ali, A; Collazuol, G; Iacob, F; Ludovici, L; Cao, S; Friend, M; Hasegawa, T; Ishida, T; Kobayashi, T; Nakadaira, T; Nakamura, K; Oyama, Y; Sakashita, K; Sekiguchi, T; Tsukamoto, T; Abe, K E; Hasegawa, M; Isobe, Y; Miyabe, H; Sugimoto, T; Suzuki, A T; Takeuchi, Y; Ashida, Y; Hayashino, T; Hirota, S; Kikawa, T; Mori, M; Nakamura, K E; Nakaya, T; Wendell, R A; Anthony, L H V; McCauley, N; Pritchard, A; Tsui, K M; Fukuda, Y; Itow, Y; Murrase, M; Mijakowski, P; Frankiewicz, K; Jung, C K; Li, X; Palomino, J L; Santucci, G; Vilela, C; Wilking, M J; Yanagisawa, C; Fukuda, D; Hagiwara, K; Ishino, H; Ito, S; Koshio, Y; Sakuda, M; Takahira, Y; Xu, C; Kuno, Y; Simpson, C; Wark, D; Di Lodovico, F; Richards, B; Molina Sedgwick, S; Tacik, R; Kim, S B; Thiesse, M; Thompson, L; Okazawa, H; Choi, Y; Nishijima, K; Koshiba, M; Yokoyama, M; Goldsack, A; Martens, K; Murdoch, M; Quilain, B; Suzuki, Y; Vagins, M R; Kuze, M; Okajima, Y; Yoshida, T; Ishitsuka, M; Martin, J F; Nantais, C M; Tanaka, H A; Towstego, T; Hartz, M; Konaka, A; de Perio, P; Chen, S; Wan, L; Minamino, A;
• Is Part Of: Progress of theoretical and experimental physics. Volume 2019:Number 5(2019)
• Publication Date: 2019-05-14
• Subjects: C43 -- F20 -- F21 -- F23 -- H42; Physics -- Periodicals; Mathematical physics -- Periodicals; 530.05
• DOI: 10.1093/ptep/ptz015
• Languages: English
• ISSNs: 2050-3911

Abstract

Abstract: A new event reconstruction algorithm based on a maximum likelihood method has been developed for Super-Kamiokande. Its improved kinematic and particle identification capabilities enable the analysis of atmospheric neutrino data in a detector volume 32% larger than previous analyses and increase the sensitivity to the neutrino mass hierarchy. Analysis of a 253.9 kton$\cdot$ year exposure of the Super-Kamiokande IV atmospheric neutrino data has yielded a weak preference for the normal hierarchy, disfavoring the inverted hierarchy at 74% assuming oscillations at the best fit of the analysis.