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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. Orii
  • G. Pronost, H. Sekiya, M. Shiozawa, Y. Sonoda, A. Takeda, A. Takenaka, H. Tanaka, T. Yano, R. Akutsu, T. Kajita, Y. 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
  • Kyoto University
  • The University of Tokyo
  • Universidad Autónoma de Madrid
  • Boston University
  • University of British Columbia
  • University of California at Irvine
  • University of California at Los Angeles
  • California State University Dominguez Hills
  • Chonnam National University
  • Duke University
  • Laboratoire Leprince-Ringuet
  • Fukuoka Institute of Technology
  • Gifu University
  • Gwangju Institute of Science and Technology
  • University of Hawai'i at Mānoa
  • Imperial College London
  • Polytechnic University of Bari
  • University of Padua
  • University of Rome La Sapienza
  • High Energy Accelerator Research Organization, Tsukuba
  • Kobe University
  • University of Liverpool
  • Miyagi University of Education
  • Nagoya University
  • National Centre for Nuclear Research
  • Stony Brook University
  • City University of New York
  • Okayama University
  • The University of Osaka
  • University of Oxford
  • STFC Rutherford Appleton Laboratory
  • Queen Mary University of London
  • University of Regina
  • Tsinghua University
  • University of Sheffield
  • Shizuoka University of Welfare
  • Sungkyunkwan University
  • Tokai University
  • University of Naples Federico II
  • Institute of Science Tokyo
  • Tokyo University of Science
  • University of Toronto
  • TRIUMF
  • Seoul National University
  • Yokohama National University

Research output: Contribution to journalArticlepeer-review

83 Scopus citations

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
StatePublished - May 14 2019

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