Atmospheric neutrino oscillation analysis with neutron tagging and an
expanded fiducial volume in Super-Kamiokande I-V
Super-Kamiokande Collaboration,:,T. Wester,K. Abe,C. Bronner,Y. Hayato,K. Hiraide,K. Hosokawa,K. Ieki,M. Ikeda,J. Kameda,Y. Kanemura,R. Kaneshima,Y. Kashiwagi,Y. Kataoka,S. Miki,S. Mine,M. Miura,S. Moriyama,Y. Nakano,M. Nakahata,S. Nakayama,Y. Noguchi,K. Sato,H. Sekiya,H. Shiba,K. Shimizu,M. Shiozawa,Y. Sonoda,Y. Suzuki,A. Takeda,Y. Takemoto,H. Tanaka,T. Yano,S. Han,T. Kajita,K. Okumura,T. Tashiro,T. Tomiya,X. Wang,S. Yoshida,P. Fernandez,L. Labarga,N. Ospina,B. Zaldivar,B. W. Pointon,E. Kearns,J. L. Raaf,L. Wan,J. Bian,N. J. Griskevich,S. Locke,M. B. Smy,H. W. Sobel,V. Takhistov,A. Yankelevich,J. Hill,S. H. Lee,D. H. Moon,R. G. Park,B. Bodur,K. Scholberg,C. W. Walter,A. Beauchene,O. Drapier,A. Giampaolo,Th. A. Mueller,A. D. Santos,P. Paganini,B. Quilain,T. Nakamura,J. S. Jang,L. N. Machado,J. G. Learned,K. Choi,N. Iovine,S. Cao,L. H. V. Anthony,D. Martin,N. W. Prouse,M. Scott,A. A. Sztuc,Y. Uchida,V. Berardi,M. G. Catanesi,E. Radicioni,N. F. Calabria,A. Langella,G. De Rosa,G. Collazuol,F. Iacob,M. Mattiazzi,L. Ludovici,M. Gonin,G. Pronost,C. Fujisawa,Y. Maekawa,Y. Nishimura,R. Okazaki,R. Akutsu,M. Friend,T. Hasegawa,T. Ishida,T. Kobayashi,M. Jakkapu,T. Matsubara,T. Nakadaira,K. Nakamura,Y. Oyama,K. Sakashita,T. Sekiguchi,T. Tsukamoto,N. Bhuiyan,G. T. Burton,F. Di Lodovico,J. Gao,A. Goldsack,T. Katori,J. Migenda,R. Ramsden,Z. Xie,S. Zsoldos,A. T. Suzuki,Y. Takagi,Y. Takeuchi,H. Zhong,J. Feng,L. Feng,J. R. Hu,Z. Hu,M. Kawaue,T. Kikawa,M. Mori,T. Nakaya,R. A. Wendell,K. Yasutome,S. J. Jenkins,N. McCauley,P. Mehta,A. Tarrant,Y. Fukuda,Y. Itow,H. Menjo,K. Ninomiya,J. Lagoda,S. M. Lakshmi,M. Mandal,P. Mijakowski,Y. S. Prabhu,J. Zalipska,M. Jia,J. Jiang,C. K. Jung,W. Shi,M. J. Wilking,C. Yanagisawa,M. Harada,Y. Hino,H. Ishino,Y. Koshio,F. Nakanishi,S. Sakai,T. Tada,T. Tano,T. Ishizuka,G. Barr,D. Barrow,L. Cook,A. Holin,F. Nova,S. Samani,D. Wark,S. Jung,B. S. Yang,J. Y. Yang,J. Yoo,J. E. P. Fannon,L. Kneale,M. Malek,J. M. McElwee,M. D. Thiesse,L. F. Thompson,S. T. Wilson,H. Okazawa,S. B. Kim,E. Kwon,J. W. Seo,I. Yu,A. K. Ichikawa,K. D. Nakamura,S. Tairafune,K. Nishijima,M. Koshiba,A. Eguchi,K. Nakagiri,Y. Nakajima,S. Shima,N. Taniuchi,E. Watanabe,M. Yokoyama,P. de Perio,S. Fujita,K. Martens,K. M. Tsui,M. R. Vagins,J. Xia,S. Izumiyama,M. Kuze,R. Matsumoto,M. Ishitsuka,H. Ito,Y. Ommura,N. Shigeta,M. Shinoki,K. Yamauchi,T. Yoshida,R. Gaur,V. Gousy-Leblanc,M. Hartz,A. Konaka,X. Li,S. Chen,B. D. Xu,B. Zhang,M. Posiadala-Zezula,S. B. Boyd,R. Edwards,D. Hadley,M. Nicholson,M. O'Flaherty,B. Richards,A. Ali,B. Jamieson,S. Amanai,Ll. Marti,A. Minamino,S. Suzuki
Physical Review D（2023）
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摘要
We present a measurement of neutrino oscillation parameters with the
Super-Kamiokande detector using atmospheric neutrinos from the complete
pure-water SK I-V (April 1996-July 2020) data set, including events from an
expanded fiducial volume. The data set corresponds to 6511.3 live days and an
exposure of 484.2 kiloton-years. Measurements of the neutrino oscillation
parameters Δ m^2_32, sin^2θ_23, sin^2 θ_13,
δ_CP, and the preference for the neutrino mass ordering are presented
with atmospheric neutrino data alone, and with constraints on sin^2
θ_13 from reactor neutrino experiments. Our analysis including
constraints on sin^2 θ_13 favors the normal mass ordering at the
92.3
