Atmospheric neutrino oscillation analysis with improved event reconstruction in Super-Kamiokande IV

Jiang, M; Abe, K; Bronner, C; Hayato, Y; Ikeda, M; Iyogi, K; Kameda, J; Kato, Y; Kishimoto, Y; Marti, 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, Fdm; Kachulis, C; Kearns, E; Raaf, Jl; Stone, Jl; Sussman, S; Berkman, S; Bian, J; Griskevich, Nj; Kropp, Wr; Locke, S; Mine, S; Weatherly, P; Smy, Mb; Sobel, Hw; Takhistov, V; Ganezer, Ks; Hill, J; Kim, Jy; Lim, It; Park, Rg; Bodur, B; Scholberg, K; Walter, Cw; Gonin, M; Imber, J; Mueller, Ta; Ishizuka, T; Nakamura, T; Jang, Js; Choi, K; Learned, Jg; Matsuno, S; Litchfield, Rp; Uchida, Y; Wascko, Mo; Calabria, Nf; Catanesi, Mg; Intonti, Ra; Radicioni, E; 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; Hasegawa, M; Isobe, Y; Miyabe, H; Sugimoto, T; Suzuki, At; Takeuchi, Y; Ashida, Y; Hayashino, T; Hirota, S; Kikawa, T; Mori, M; Nakamura, Ke; Nakaya, T; Wendell, Ra; Anthony, Lhv; Mccauley, N; Pritchard, A; Tsui, Km; Fukuda, Y; Itow, Y; Murrase, M; Mijakowski, P; Frankiewicz, K; Jung, Ck; Li, X; Palomino, Jl; Santucci, G; Vilela, C; Wilking, Mj; 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; Sedgwick, Sm; Tacik, R; Kim, Sb; 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, Mr; Kuze, M; Okajima, Y; Yoshida, T; Ishitsuka, M; Martin, Jf; Nantais, Cm; Tanaka, Ha; Towstego, T; Hartz, M; Konaka, A; de Perio, P; Chen, S; Wan, L; Minamino, A

doi:10.1093/ptep/ptz015

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.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.

Atmospheric neutrino oscillation analysis with improved event reconstruction in Super-Kamiokande IV / Jiang, M; Abe, K; Bronner, C; Hayato, Y; Ikeda, M; Iyogi, K; Kameda, J; Kato, Y; Kishimoto, Y; Marti, 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, Fdm; Kachulis, C; Kearns, E; Raaf, Jl; Stone, Jl; Sussman, S; Berkman, S; Bian, J; Griskevich, Nj; Kropp, Wr; Locke, S; Mine, S; Weatherly, P; Smy, Mb; Sobel, Hw; Takhistov, V; Ganezer, Ks; Hill, J; Kim, Jy; Lim, It; Park, Rg; Bodur, B; Scholberg, K; Walter, Cw; Gonin, M; Imber, J; Mueller, Ta; Ishizuka, T; Nakamura, T; Jang, Js; Choi, K; Learned, Jg; Matsuno, S; Litchfield, Rp; Uchida, Y; Wascko, Mo; Calabria, Nf; Catanesi, Mg; Intonti, Ra; Radicioni, E; 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; Hasegawa, M; Isobe, Y; Miyabe, H; Sugimoto, T; Suzuki, At; Takeuchi, Y; Ashida, Y; Hayashino, T; Hirota, S; Kikawa, T; Mori, M; Nakamura, Ke; Nakaya, T; Wendell, Ra; Anthony, Lhv; Mccauley, N; Pritchard, A; Tsui, Km; Fukuda, Y; Itow, Y; Murrase, M; Mijakowski, P; Frankiewicz, K; Jung, Ck; Li, X; Palomino, Jl; Santucci, G; Vilela, C; Wilking, Mj; 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; Sedgwick, Sm; Tacik, R; Kim, Sb; 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, Mr; Kuze, M; Okajima, Y; Yoshida, T; Ishitsuka, M; Martin, Jf; Nantais, Cm; Tanaka, Ha; Towstego, T; Hartz, M; Konaka, A; de Perio, P; Chen, S; Wan, L; Minamino, A. - In: PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS. - ISSN 2050-3911. - 2019:5(2019). [10.1093/ptep/ptz015]