Evidence for the appearance of atmospheric tau neutrinos in super-kamiokande

K. Abe, Y. Hayato, T. Iida, K. Iyogi, J. Kameda, Yusuke Koshio, Y. Kozuma, Ll Marti, M. Miura, S. Moriyama, M. Nakahata, S. Nakayama, Y. Obayashi, H. Sekiya, M. Shiozawa, Y. Suzuki, A. Takeda, Y. Takenaga, K. Ueno, K. UeshimaS. Yamada, T. Yokozawa, C. Ishihara, H. Kaji, T. Kajita, K. Kaneyuki, K. P. Lee, T. McLachlan, K. Okumura, Y. Shimizu, N. Tanimoto, L. Labarga, E. Kearns, M. Litos, J. L. Raaf, J. L. Stone, L. R. Sulak, M. Goldhaber, K. Bays, W. R. Kropp, S. Mine, C. Regis, A. Renshaw, M. B. Smy, H. W. Sobel, K. S. Ganezer, J. Hill, W. E. Keig, J. S. Jang, J. Y. Kim, I. T. Lim, J. B. Albert, K. Scholberg, C. W. Walter, R. Wendell, T. M. Wongjirad, T. Ishizuka, S. Tasaka, J. G. Learned, S. Matsuno, S. N. Smith, T. Hasegawa, T. Ishida, T. Ishii, T. Kobayashi, T. Nakadaira, K. Nakamura, K. Nishikawa, Y. Oyama, K. Sakashita, T. Sekiguchi, T. Tsukamoto, A. T. Suzuki, Y. Takeuchi, M. Ikeda, A. Minamino, T. Nakaya, Y. Fukuda, Y. Itow, G. Mitsuka, T. Tanaka, C. K. Jung, G. D. Lopez, I. Taylor, C. Yanagisawa, Hirokazu Ishino, A. Kibayashi, S. Mino, T. Mori, Makoto Sakuda, H. Toyota, Y. Kuno, M. Yoshida, S. B. Kim, B. S. Yang, H. Okazawa, Y. Choi, K. Nishijima, M. Koshiba, M. Yokoyama, Y. Totsuka, K. Martens, J. Schuemann, M. R. Vagins, S. Chen, Y. Heng, Z. Yang, H. Zhang, D. Kielczewska, P. Mijakowski, K. Connolly, M. Dziomba, E. Thrane, R. J. Wilkes

Research output: Contribution to journalArticle

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Abstract

Super-Kamiokande atmospheric neutrino data were fit with an unbinned maximum likelihood method to search for the appearance of tau leptons resulting from the interactions of oscillation-generated tau neutrinos in the detector. Relative to the expectation of unity, the tau normalization is found to be 1.42±0.35(stat)-0.12+0.14(syst) excluding the no-tau-appearance hypothesis, for which the normalization would be zero, at the 3.8σ level. We estimate that 180.1±44.3(stat)-15.2+17.8(syst) tau leptons were produced in the 22.5 kton fiducial volume of the detector by tau neutrinos during the 2806 day running period. In future analyses, this large sample of selected tau events will allow the study of charged current tau neutrino interaction physics with oscillation produced tau neutrinos.

Original languageEnglish
Article number181802
JournalPhysical Review Letters
Volume110
Issue number18
DOIs
Publication statusPublished - May 2 2013

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neutrinos
leptons
oscillations
detectors
unity
interactions
physics
estimates

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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Evidence for the appearance of atmospheric tau neutrinos in super-kamiokande. / Abe, K.; Hayato, Y.; Iida, T.; Iyogi, K.; Kameda, J.; Koshio, Yusuke; Kozuma, Y.; Marti, Ll; Miura, M.; Moriyama, S.; Nakahata, M.; Nakayama, S.; Obayashi, Y.; Sekiya, H.; Shiozawa, M.; Suzuki, Y.; Takeda, A.; Takenaga, Y.; Ueno, K.; Ueshima, K.; Yamada, S.; Yokozawa, T.; Ishihara, C.; Kaji, H.; Kajita, T.; Kaneyuki, K.; Lee, K. P.; McLachlan, T.; Okumura, K.; Shimizu, Y.; Tanimoto, N.; Labarga, L.; Kearns, E.; Litos, M.; Raaf, J. L.; Stone, J. L.; Sulak, L. R.; Goldhaber, M.; Bays, K.; Kropp, W. R.; Mine, S.; Regis, C.; Renshaw, A.; Smy, M. B.; Sobel, H. W.; Ganezer, K. S.; Hill, J.; Keig, W. E.; Jang, J. S.; Kim, J. Y.; Lim, I. T.; Albert, J. B.; Scholberg, K.; Walter, C. W.; Wendell, R.; Wongjirad, T. M.; Ishizuka, T.; Tasaka, S.; Learned, J. G.; Matsuno, S.; Smith, S. N.; Hasegawa, T.; Ishida, T.; Ishii, T.; Kobayashi, T.; Nakadaira, T.; Nakamura, K.; Nishikawa, K.; Oyama, Y.; Sakashita, K.; Sekiguchi, T.; Tsukamoto, T.; Suzuki, A. T.; Takeuchi, Y.; Ikeda, M.; Minamino, A.; Nakaya, T.; Fukuda, Y.; Itow, Y.; Mitsuka, G.; Tanaka, T.; Jung, C. K.; Lopez, G. D.; Taylor, I.; Yanagisawa, C.; Ishino, Hirokazu; Kibayashi, A.; Mino, S.; Mori, T.; Sakuda, Makoto; Toyota, H.; Kuno, Y.; Yoshida, M.; Kim, S. B.; Yang, B. S.; Okazawa, H.; Choi, Y.; Nishijima, K.; Koshiba, M.; Yokoyama, M.; Totsuka, Y.; Martens, K.; Schuemann, J.; Vagins, M. R.; Chen, S.; Heng, Y.; Yang, Z.; Zhang, H.; Kielczewska, D.; Mijakowski, P.; Connolly, K.; Dziomba, M.; Thrane, E.; Wilkes, R. J.

In: Physical Review Letters, Vol. 110, No. 18, 181802, 02.05.2013.

Research output: Contribution to journalArticle

Abe, K, Hayato, Y, Iida, T, Iyogi, K, Kameda, J, Koshio, Y, Kozuma, Y, Marti, L, Miura, M, Moriyama, S, Nakahata, M, Nakayama, S, Obayashi, Y, Sekiya, H, Shiozawa, M, Suzuki, Y, Takeda, A, Takenaga, Y, Ueno, K, Ueshima, K, Yamada, S, Yokozawa, T, Ishihara, C, Kaji, H, Kajita, T, Kaneyuki, K, Lee, KP, McLachlan, T, Okumura, K, Shimizu, Y, Tanimoto, N, Labarga, L, Kearns, E, Litos, M, Raaf, JL, Stone, JL, Sulak, LR, Goldhaber, M, Bays, K, Kropp, WR, Mine, S, Regis, C, Renshaw, A, Smy, MB, Sobel, HW, Ganezer, KS, Hill, J, Keig, WE, Jang, JS, Kim, JY, Lim, IT, Albert, JB, Scholberg, K, Walter, CW, Wendell, R, Wongjirad, TM, Ishizuka, T, Tasaka, S, Learned, JG, Matsuno, S, Smith, SN, Hasegawa, T, Ishida, T, Ishii, T, Kobayashi, T, Nakadaira, T, Nakamura, K, Nishikawa, K, Oyama, Y, Sakashita, K, Sekiguchi, T, Tsukamoto, T, Suzuki, AT, Takeuchi, Y, Ikeda, M, Minamino, A, Nakaya, T, Fukuda, Y, Itow, Y, Mitsuka, G, Tanaka, T, Jung, CK, Lopez, GD, Taylor, I, Yanagisawa, C, Ishino, H, Kibayashi, A, Mino, S, Mori, T, Sakuda, M, Toyota, H, Kuno, Y, Yoshida, M, Kim, SB, Yang, BS, Okazawa, H, Choi, Y, Nishijima, K, Koshiba, M, Yokoyama, M, Totsuka, Y, Martens, K, Schuemann, J, Vagins, MR, Chen, S, Heng, Y, Yang, Z, Zhang, H, Kielczewska, D, Mijakowski, P, Connolly, K, Dziomba, M, Thrane, E & Wilkes, RJ 2013, 'Evidence for the appearance of atmospheric tau neutrinos in super-kamiokande', Physical Review Letters, vol. 110, no. 18, 181802. https://doi.org/10.1103/PhysRevLett.110.181802
Abe, K. ; Hayato, Y. ; Iida, T. ; Iyogi, K. ; Kameda, J. ; Koshio, Yusuke ; Kozuma, Y. ; Marti, Ll ; Miura, M. ; Moriyama, S. ; Nakahata, M. ; Nakayama, S. ; Obayashi, Y. ; Sekiya, H. ; Shiozawa, M. ; Suzuki, Y. ; Takeda, A. ; Takenaga, Y. ; Ueno, K. ; Ueshima, K. ; Yamada, S. ; Yokozawa, T. ; Ishihara, C. ; Kaji, H. ; Kajita, T. ; Kaneyuki, K. ; Lee, K. P. ; McLachlan, T. ; Okumura, K. ; Shimizu, Y. ; Tanimoto, N. ; Labarga, L. ; Kearns, E. ; Litos, M. ; Raaf, J. L. ; Stone, J. L. ; Sulak, L. R. ; Goldhaber, M. ; Bays, K. ; Kropp, W. R. ; Mine, S. ; Regis, C. ; Renshaw, A. ; Smy, M. B. ; Sobel, H. W. ; Ganezer, K. S. ; Hill, J. ; Keig, W. E. ; Jang, J. S. ; Kim, J. Y. ; Lim, I. T. ; Albert, J. B. ; Scholberg, K. ; Walter, C. W. ; Wendell, R. ; Wongjirad, T. M. ; Ishizuka, T. ; Tasaka, S. ; Learned, J. G. ; Matsuno, S. ; Smith, S. N. ; Hasegawa, T. ; Ishida, T. ; Ishii, T. ; Kobayashi, T. ; Nakadaira, T. ; Nakamura, K. ; Nishikawa, K. ; Oyama, Y. ; Sakashita, K. ; Sekiguchi, T. ; Tsukamoto, T. ; Suzuki, A. T. ; Takeuchi, Y. ; Ikeda, M. ; Minamino, A. ; Nakaya, T. ; Fukuda, Y. ; Itow, Y. ; Mitsuka, G. ; Tanaka, T. ; Jung, C. K. ; Lopez, G. D. ; Taylor, I. ; Yanagisawa, C. ; Ishino, Hirokazu ; Kibayashi, A. ; Mino, S. ; Mori, T. ; Sakuda, Makoto ; Toyota, H. ; Kuno, Y. ; Yoshida, M. ; Kim, S. B. ; Yang, B. S. ; Okazawa, H. ; Choi, Y. ; Nishijima, K. ; Koshiba, M. ; Yokoyama, M. ; Totsuka, Y. ; Martens, K. ; Schuemann, J. ; Vagins, M. R. ; Chen, S. ; Heng, Y. ; Yang, Z. ; Zhang, H. ; Kielczewska, D. ; Mijakowski, P. ; Connolly, K. ; Dziomba, M. ; Thrane, E. ; Wilkes, R. J. / Evidence for the appearance of atmospheric tau neutrinos in super-kamiokande. In: Physical Review Letters. 2013 ; Vol. 110, No. 18.
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title = "Evidence for the appearance of atmospheric tau neutrinos in super-kamiokande",
abstract = "Super-Kamiokande atmospheric neutrino data were fit with an unbinned maximum likelihood method to search for the appearance of tau leptons resulting from the interactions of oscillation-generated tau neutrinos in the detector. Relative to the expectation of unity, the tau normalization is found to be 1.42±0.35(stat)-0.12+0.14(syst) excluding the no-tau-appearance hypothesis, for which the normalization would be zero, at the 3.8σ level. We estimate that 180.1±44.3(stat)-15.2+17.8(syst) tau leptons were produced in the 22.5 kton fiducial volume of the detector by tau neutrinos during the 2806 day running period. In future analyses, this large sample of selected tau events will allow the study of charged current tau neutrino interaction physics with oscillation produced tau neutrinos.",
author = "K. Abe and Y. Hayato and T. Iida and K. Iyogi and J. Kameda and Yusuke Koshio and Y. Kozuma and Ll Marti and M. Miura and S. Moriyama and M. Nakahata and S. Nakayama and Y. Obayashi and H. Sekiya and M. Shiozawa and Y. Suzuki and A. Takeda and Y. Takenaga and K. Ueno and K. Ueshima and S. Yamada and T. Yokozawa and C. Ishihara and H. Kaji and T. Kajita and K. Kaneyuki and Lee, {K. P.} and T. McLachlan and K. Okumura and Y. Shimizu and N. Tanimoto and L. Labarga and E. Kearns and M. Litos and Raaf, {J. L.} and Stone, {J. L.} and Sulak, {L. R.} and M. Goldhaber and K. Bays and Kropp, {W. R.} and S. Mine and C. Regis and A. Renshaw and Smy, {M. B.} and Sobel, {H. W.} and Ganezer, {K. S.} and J. Hill and Keig, {W. E.} and Jang, {J. S.} and Kim, {J. Y.} and Lim, {I. T.} and Albert, {J. B.} and K. Scholberg and Walter, {C. W.} and R. Wendell and Wongjirad, {T. M.} and T. Ishizuka and S. Tasaka and Learned, {J. G.} and S. Matsuno and Smith, {S. N.} and T. Hasegawa and T. Ishida and T. Ishii and T. Kobayashi and T. Nakadaira and K. Nakamura and K. Nishikawa and Y. Oyama and K. Sakashita and T. Sekiguchi and T. Tsukamoto and Suzuki, {A. T.} and Y. Takeuchi and M. Ikeda and A. Minamino and T. Nakaya and Y. Fukuda and Y. Itow and G. Mitsuka and T. Tanaka and Jung, {C. K.} and Lopez, {G. D.} and I. Taylor and C. Yanagisawa and Hirokazu Ishino and A. Kibayashi and S. Mino and T. Mori and Makoto Sakuda and H. Toyota and Y. Kuno and M. Yoshida and Kim, {S. B.} and Yang, {B. S.} and H. Okazawa and Y. Choi and K. Nishijima and M. Koshiba and M. Yokoyama and Y. Totsuka and K. Martens and J. Schuemann and Vagins, {M. R.} and S. Chen and Y. Heng and Z. Yang and H. Zhang and D. Kielczewska and P. Mijakowski and K. Connolly and M. Dziomba and E. Thrane and Wilkes, {R. J.}",
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TY - JOUR

T1 - Evidence for the appearance of atmospheric tau neutrinos in super-kamiokande

AU - Abe, K.

AU - Hayato, Y.

AU - Iida, T.

AU - Iyogi, K.

AU - Kameda, J.

AU - Koshio, Yusuke

AU - Kozuma, Y.

AU - Marti, Ll

AU - Miura, M.

AU - Moriyama, S.

AU - Nakahata, M.

AU - Nakayama, S.

AU - Obayashi, Y.

AU - Sekiya, H.

AU - Shiozawa, M.

AU - Suzuki, Y.

AU - Takeda, A.

AU - Takenaga, Y.

AU - Ueno, K.

AU - Ueshima, K.

AU - Yamada, S.

AU - Yokozawa, T.

AU - Ishihara, C.

AU - Kaji, H.

AU - Kajita, T.

AU - Kaneyuki, K.

AU - Lee, K. P.

AU - McLachlan, T.

AU - Okumura, K.

AU - Shimizu, Y.

AU - Tanimoto, N.

AU - Labarga, L.

AU - Kearns, E.

AU - Litos, M.

AU - Raaf, J. L.

AU - Stone, J. L.

AU - Sulak, L. R.

AU - Goldhaber, M.

AU - Bays, K.

AU - Kropp, W. R.

AU - Mine, S.

AU - Regis, C.

AU - Renshaw, A.

AU - Smy, M. B.

AU - Sobel, H. W.

AU - Ganezer, K. S.

AU - Hill, J.

AU - Keig, W. E.

AU - Jang, J. S.

AU - Kim, J. Y.

AU - Lim, I. T.

AU - Albert, J. B.

AU - Scholberg, K.

AU - Walter, C. W.

AU - Wendell, R.

AU - Wongjirad, T. M.

AU - Ishizuka, T.

AU - Tasaka, S.

AU - Learned, J. G.

AU - Matsuno, S.

AU - Smith, S. N.

AU - Hasegawa, T.

AU - Ishida, T.

AU - Ishii, T.

AU - Kobayashi, T.

AU - Nakadaira, T.

AU - Nakamura, K.

AU - Nishikawa, K.

AU - Oyama, Y.

AU - Sakashita, K.

AU - Sekiguchi, T.

AU - Tsukamoto, T.

AU - Suzuki, A. T.

AU - Takeuchi, Y.

AU - Ikeda, M.

AU - Minamino, A.

AU - Nakaya, T.

AU - Fukuda, Y.

AU - Itow, Y.

AU - Mitsuka, G.

AU - Tanaka, T.

AU - Jung, C. K.

AU - Lopez, G. D.

AU - Taylor, I.

AU - Yanagisawa, C.

AU - Ishino, Hirokazu

AU - Kibayashi, A.

AU - Mino, S.

AU - Mori, T.

AU - Sakuda, Makoto

AU - Toyota, H.

AU - Kuno, Y.

AU - Yoshida, M.

AU - Kim, S. B.

AU - Yang, B. S.

AU - Okazawa, H.

AU - Choi, Y.

AU - Nishijima, K.

AU - Koshiba, M.

AU - Yokoyama, M.

AU - Totsuka, Y.

AU - Martens, K.

AU - Schuemann, J.

AU - Vagins, M. R.

AU - Chen, S.

AU - Heng, Y.

AU - Yang, Z.

AU - Zhang, H.

AU - Kielczewska, D.

AU - Mijakowski, P.

AU - Connolly, K.

AU - Dziomba, M.

AU - Thrane, E.

AU - Wilkes, R. J.

PY - 2013/5/2

Y1 - 2013/5/2

N2 - Super-Kamiokande atmospheric neutrino data were fit with an unbinned maximum likelihood method to search for the appearance of tau leptons resulting from the interactions of oscillation-generated tau neutrinos in the detector. Relative to the expectation of unity, the tau normalization is found to be 1.42±0.35(stat)-0.12+0.14(syst) excluding the no-tau-appearance hypothesis, for which the normalization would be zero, at the 3.8σ level. We estimate that 180.1±44.3(stat)-15.2+17.8(syst) tau leptons were produced in the 22.5 kton fiducial volume of the detector by tau neutrinos during the 2806 day running period. In future analyses, this large sample of selected tau events will allow the study of charged current tau neutrino interaction physics with oscillation produced tau neutrinos.

AB - Super-Kamiokande atmospheric neutrino data were fit with an unbinned maximum likelihood method to search for the appearance of tau leptons resulting from the interactions of oscillation-generated tau neutrinos in the detector. Relative to the expectation of unity, the tau normalization is found to be 1.42±0.35(stat)-0.12+0.14(syst) excluding the no-tau-appearance hypothesis, for which the normalization would be zero, at the 3.8σ level. We estimate that 180.1±44.3(stat)-15.2+17.8(syst) tau leptons were produced in the 22.5 kton fiducial volume of the detector by tau neutrinos during the 2806 day running period. In future analyses, this large sample of selected tau events will allow the study of charged current tau neutrino interaction physics with oscillation produced tau neutrinos.

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U2 - 10.1103/PhysRevLett.110.181802

DO - 10.1103/PhysRevLett.110.181802

M3 - Article

AN - SCOPUS:84877263662

VL - 110

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

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M1 - 181802

ER -