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

M. Jiang, K. Abe, C. Bronner, Y. Hayato, M. Ikeda, K. Iyogi, J. Kameda, Y. Kato, Y. Kishimoto, L. Marti, M. Miura, S. Moriyama, T. Mochizuki, M. Nakahata, Y. Nakajima, Y. Nakano, S. Nakayama, T. Okada, K. Okamoto, A. OriiG. Pronost, H. Sekiya, M. Shiozawa, Y. Sonoda, A. Takeda, A. Takenaka, H. Tanaka, T. Yano, R. Akutsu, T. Kajita, Yasuhiro Nishimura, K. Okumura, R. Wang, J. Xia, L. Labarga, P. Fernandez, F. D.M. Blaszczyk, C. Kachulis, E. Kearns, J. L. Raaf, J. L. Stone, S. Sussman, S. Berkman, J. Bian, N. J. Griskevich, W. R. Kropp, S. Locke, S. Mine, P. Weatherly, M. B. Smy, H. W. Sobel, V. Takhistov, K. S. Ganezer, J. Hill, J. Y. Kim, I. T. Lim, R. G. Park, B. Bodur, K. Scholberg, C. W. Walter, M. Gonin, J. Imber, Th A. Mueller, T. Ishizuka, T. Nakamura, J. S. Jang, K. Choi, J. G. Learned, S. Matsuno, R. P. Litchfield, Y. Uchida, M. O. Wascko, N. F. Calabria, M. G. Catanesi, R. A. Intonti, E. Radicioni, G. De Rosa, A. Ali, G. Collazuol, F. Iacob, L. Ludovici, S. Cao, M. Friend, T. Hasegawa, T. Ishida, T. Kobayashi, T. Nakadaira, K. Nakamura, Y. Oyama, K. Sakashita, T. Sekiguchi, T. Tsukamoto, Ke Abe, M. Hasegawa, Y. Isobe, H. Miyabe, T. Sugimoto, A. T. Suzuki, Y. Takeuchi, Y. Ashida, T. Hayashino, S. Hirota, T. Kikawa, M. Mori, Ke Nakamura, T. Nakaya, R. A. Wendell, L. H.V. Anthony, N. McCauley, A. Pritchard, K. M. Tsui, Y. Fukuda, Y. Itow, M. Murrase, P. Mijakowski, K. Frankiewicz, C. K. Jung, X. Li, J. L. Palomino, G. Santucci, C. Vilela, M. J. Wilking, C. Yanagisawa, D. Fukuda, K. Hagiwara, H. Ishino, S. Ito, Y. Koshio, M. Sakuda, Y. Takahira, C. Xu, Y. Kuno, C. Simpson, D. Wark, F. Di Lodovico, B. Richards, S. Molina Sedgwick, R. Tacik, S. B. Kim, M. Thiesse, L. Thompson, H. Okazawa, Y. Choi, K. Nishijima, M. Koshiba, M. Yokoyama, A. Goldsack, K. Martens, M. Murdoch, B. Quilain, Y. Suzuki, M. R. Vagins, M. Kuze, Y. Okajima, T. Yoshida, M. Ishitsuka, J. F. Martin, C. M. Nantais, H. A. Tanaka, T. Towstego, M. Hartz, A. Konaka, P. De Perio, S. Chen, L. Wan, A. Minamino

Research output: Contribution to journalArticle

1 Citation (Scopus)

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•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.

Original languageEnglish
Article number053F01
JournalProgress of Theoretical and Experimental Physics
Volume2019
Issue number5
DOIs
Publication statusPublished - 2019 May 14
Externally publishedYes

Fingerprint

hierarchies
neutrinos
oscillations
kinematics
sensitivity
detectors

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

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, Yasuhiro; 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, Ke; Hasegawa, M.; Isobe, Y.; Miyabe, H.; Sugimoto, T.; Suzuki, A. T.; Takeuchi, Y.; Ashida, Y.; Hayashino, T.; Hirota, S.; Kikawa, T.; Mori, M.; Nakamura, Ke; 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.

In: Progress of Theoretical and Experimental Physics, Vol. 2019, No. 5, 053F01, 14.05.2019.

Research output: Contribution to journalArticle

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, 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, Hasegawa, M, Isobe, Y, Miyabe, H, Sugimoto, T, Suzuki, AT, Takeuchi, Y, Ashida, Y, Hayashino, T, Hirota, S, Kikawa, T, Mori, M, Nakamura, K, 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, Molina Sedgwick, S, 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 2019, 'Atmospheric neutrino oscillation analysis with improved event reconstruction in Super-Kamiokande IV', Progress of Theoretical and Experimental Physics, vol. 2019, no. 5, 053F01. https://doi.org/10.1093/ptep/ptz015
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, Yasuhiro ; 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, Ke ; Hasegawa, M. ; Isobe, Y. ; Miyabe, H. ; Sugimoto, T. ; Suzuki, A. T. ; Takeuchi, Y. ; Ashida, Y. ; Hayashino, T. ; Hirota, S. ; Kikawa, T. ; Mori, M. ; Nakamura, Ke ; 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. / Atmospheric neutrino oscillation analysis with improved event reconstruction in Super-Kamiokande IV. In: Progress of Theoretical and Experimental Physics. 2019 ; Vol. 2019, No. 5.
@article{6c6aff92c3294d8a8b758f51ac1099c4,
title = "Atmospheric neutrino oscillation analysis with improved event reconstruction in Super-Kamiokande IV",
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•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.",
author = "M. Jiang and K. Abe and C. Bronner and Y. Hayato and M. Ikeda and K. Iyogi and J. Kameda and Y. Kato and Y. Kishimoto and L. Marti and M. Miura and S. Moriyama and T. Mochizuki and M. Nakahata and Y. Nakajima and Y. Nakano and S. Nakayama and T. Okada and K. Okamoto and A. Orii and G. Pronost and H. Sekiya and M. Shiozawa and Y. Sonoda and A. Takeda and A. Takenaka and H. Tanaka and T. Yano and R. Akutsu and T. Kajita and Yasuhiro Nishimura and K. Okumura and R. Wang and J. Xia and L. Labarga and P. Fernandez and Blaszczyk, {F. D.M.} and C. Kachulis and E. Kearns and Raaf, {J. L.} and Stone, {J. L.} and S. Sussman and S. Berkman and J. Bian and Griskevich, {N. J.} and Kropp, {W. R.} and S. Locke and S. Mine and P. Weatherly and Smy, {M. B.} and Sobel, {H. W.} and V. Takhistov and Ganezer, {K. S.} and J. Hill and Kim, {J. Y.} and Lim, {I. T.} and Park, {R. G.} and B. Bodur and K. Scholberg and Walter, {C. W.} and M. Gonin and J. Imber and Mueller, {Th A.} and T. Ishizuka and T. Nakamura and Jang, {J. S.} and K. Choi and Learned, {J. G.} and S. Matsuno and Litchfield, {R. P.} and Y. Uchida and Wascko, {M. O.} and Calabria, {N. F.} and Catanesi, {M. G.} and Intonti, {R. A.} and E. Radicioni and {De Rosa}, G. and A. Ali and G. Collazuol and F. Iacob and L. Ludovici and S. Cao and M. Friend and T. Hasegawa and T. Ishida and T. Kobayashi and T. Nakadaira and K. Nakamura and Y. Oyama and K. Sakashita and T. Sekiguchi and T. Tsukamoto and Ke Abe and M. Hasegawa and Y. Isobe and H. Miyabe and T. Sugimoto and Suzuki, {A. T.} and Y. Takeuchi and Y. Ashida and T. Hayashino and S. Hirota and T. Kikawa and M. Mori and Ke Nakamura and T. Nakaya and Wendell, {R. A.} and Anthony, {L. H.V.} and N. McCauley and A. Pritchard and Tsui, {K. M.} and Y. Fukuda and Y. Itow and M. Murrase and P. Mijakowski and K. Frankiewicz and Jung, {C. K.} and X. Li and Palomino, {J. L.} and G. Santucci and C. Vilela and Wilking, {M. J.} and C. Yanagisawa and D. Fukuda and K. Hagiwara and H. Ishino and S. Ito and Y. Koshio and M. Sakuda and Y. Takahira and C. Xu and Y. Kuno and C. Simpson and D. Wark and {Di Lodovico}, F. and B. Richards and {Molina Sedgwick}, S. and R. Tacik and Kim, {S. B.} and M. Thiesse and L. Thompson and H. Okazawa and Y. Choi and K. Nishijima and M. Koshiba and M. Yokoyama and A. Goldsack and K. Martens and M. Murdoch and B. Quilain and Y. Suzuki and Vagins, {M. R.} and M. Kuze and Y. Okajima and T. Yoshida and M. Ishitsuka and Martin, {J. F.} and Nantais, {C. M.} and Tanaka, {H. A.} and T. Towstego and M. Hartz and A. Konaka and {De Perio}, P. and S. Chen and L. Wan and A. Minamino",
year = "2019",
month = "5",
day = "14",
doi = "10.1093/ptep/ptz015",
language = "English",
volume = "2019",
journal = "Progress of Theoretical and Experimental Physics",
issn = "2050-3911",
publisher = "Oxford University Press",
number = "5",

}

TY - JOUR

T1 - Atmospheric neutrino oscillation analysis with improved event reconstruction in Super-Kamiokande IV

AU - Jiang, M.

AU - Abe, K.

AU - Bronner, C.

AU - Hayato, Y.

AU - Ikeda, M.

AU - Iyogi, K.

AU - Kameda, J.

AU - Kato, Y.

AU - Kishimoto, Y.

AU - Marti, L.

AU - Miura, M.

AU - Moriyama, S.

AU - Mochizuki, T.

AU - Nakahata, M.

AU - Nakajima, Y.

AU - Nakano, Y.

AU - Nakayama, S.

AU - Okada, T.

AU - Okamoto, K.

AU - Orii, A.

AU - Pronost, G.

AU - Sekiya, H.

AU - Shiozawa, M.

AU - Sonoda, Y.

AU - Takeda, A.

AU - Takenaka, A.

AU - Tanaka, H.

AU - Yano, T.

AU - Akutsu, R.

AU - Kajita, T.

AU - Nishimura, Yasuhiro

AU - Okumura, K.

AU - Wang, R.

AU - Xia, J.

AU - Labarga, L.

AU - Fernandez, P.

AU - Blaszczyk, F. D.M.

AU - Kachulis, C.

AU - Kearns, E.

AU - Raaf, J. L.

AU - Stone, J. L.

AU - Sussman, S.

AU - Berkman, S.

AU - Bian, J.

AU - Griskevich, N. J.

AU - Kropp, W. R.

AU - Locke, S.

AU - Mine, S.

AU - Weatherly, P.

AU - Smy, M. B.

AU - Sobel, H. W.

AU - Takhistov, V.

AU - Ganezer, K. S.

AU - Hill, J.

AU - Kim, J. Y.

AU - Lim, I. T.

AU - Park, R. G.

AU - Bodur, B.

AU - Scholberg, K.

AU - Walter, C. W.

AU - Gonin, M.

AU - Imber, J.

AU - Mueller, Th A.

AU - Ishizuka, T.

AU - Nakamura, T.

AU - Jang, J. S.

AU - Choi, K.

AU - Learned, J. G.

AU - Matsuno, S.

AU - Litchfield, R. P.

AU - Uchida, Y.

AU - Wascko, M. O.

AU - Calabria, N. F.

AU - Catanesi, M. G.

AU - Intonti, R. A.

AU - Radicioni, E.

AU - De Rosa, G.

AU - Ali, A.

AU - Collazuol, G.

AU - Iacob, F.

AU - Ludovici, L.

AU - Cao, S.

AU - Friend, M.

AU - Hasegawa, T.

AU - Ishida, T.

AU - Kobayashi, T.

AU - Nakadaira, T.

AU - Nakamura, K.

AU - Oyama, Y.

AU - Sakashita, K.

AU - Sekiguchi, T.

AU - Tsukamoto, T.

AU - Abe, Ke

AU - Hasegawa, M.

AU - Isobe, Y.

AU - Miyabe, H.

AU - Sugimoto, T.

AU - Suzuki, A. T.

AU - Takeuchi, Y.

AU - Ashida, Y.

AU - Hayashino, T.

AU - Hirota, S.

AU - Kikawa, T.

AU - Mori, M.

AU - Nakamura, Ke

AU - Nakaya, T.

AU - Wendell, R. A.

AU - Anthony, L. H.V.

AU - McCauley, N.

AU - Pritchard, A.

AU - Tsui, K. M.

AU - Fukuda, Y.

AU - Itow, Y.

AU - Murrase, M.

AU - Mijakowski, P.

AU - Frankiewicz, K.

AU - Jung, C. K.

AU - Li, X.

AU - Palomino, J. L.

AU - Santucci, G.

AU - Vilela, C.

AU - Wilking, M. J.

AU - Yanagisawa, C.

AU - Fukuda, D.

AU - Hagiwara, K.

AU - Ishino, H.

AU - Ito, S.

AU - Koshio, Y.

AU - Sakuda, M.

AU - Takahira, Y.

AU - Xu, C.

AU - Kuno, Y.

AU - Simpson, C.

AU - Wark, D.

AU - Di Lodovico, F.

AU - Richards, B.

AU - Molina Sedgwick, S.

AU - Tacik, R.

AU - Kim, S. B.

AU - Thiesse, M.

AU - Thompson, L.

AU - Okazawa, H.

AU - Choi, Y.

AU - Nishijima, K.

AU - Koshiba, M.

AU - Yokoyama, M.

AU - Goldsack, A.

AU - Martens, K.

AU - Murdoch, M.

AU - Quilain, B.

AU - Suzuki, Y.

AU - Vagins, M. R.

AU - Kuze, M.

AU - Okajima, Y.

AU - Yoshida, T.

AU - Ishitsuka, M.

AU - Martin, J. F.

AU - Nantais, C. M.

AU - Tanaka, H. A.

AU - Towstego, T.

AU - Hartz, M.

AU - Konaka, A.

AU - De Perio, P.

AU - Chen, S.

AU - Wan, L.

AU - Minamino, A.

PY - 2019/5/14

Y1 - 2019/5/14

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=85068510253&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85068510253&partnerID=8YFLogxK

U2 - 10.1093/ptep/ptz015

DO - 10.1093/ptep/ptz015

M3 - Article

AN - SCOPUS:85068510253

VL - 2019

JO - Progress of Theoretical and Experimental Physics

JF - Progress of Theoretical and Experimental Physics

SN - 2050-3911

IS - 5

M1 - 053F01

ER -