First indication of terrestrial matter effects on solar neutrino oscillation

A. Renshaw; K. Abe; Y. Hayato; K. Iyogi; J. Kameda; Y. Kishimoto; M. Miura; S. Moriyama; M. Nakahata; Y. Nakano; S. Nakayama; H. Sekiya; M. Shiozawa; Y. Suzuki; A. Takeda; Y. Takenaga; T. Tomura; K. Ueno; T. Yokozawa; R. A. Wendell; T. Irvine; T. Kajita; K. Kaneyuki; K. P. Lee; Y. Nishimura; K. Okumura; T. McLachlan; L. Labarga; S. Berkman; H. A. Tanaka; S. Tobayama; E. Kearns; J. L. Raaf; J. L. Stone; L. R. Sulak; M. Goldhabar; K. Bays; G. Carminati; W. R. Kropp; S. Mine; M. B. Smy; H. W. Sobel; K. S. Ganezer; J. Hill; W. E. Keig; N. Hong; J. Y. Kim; I. T. Lim; T. Akiri; A. Himmel; K. Scholberg; C. W. Walter; T. Wongjirad; T. Ishizuka; S. Tasaka; J. S. Jang; J. G. Learned; S. Matsuno; S. N. Smith; T. Hasegawa; T. Ishida; T. Ishii; T. Kobayashi; T. Nakadaira; K. Nakamura; Y. Oyama; K. Sakashita; T. Sekiguchi; T. Tsukamoto; A. T. Suzuki; Y. Takeuchi; C. Bronner; S. Hirota; K. Huang; K. Ieki; M. Ikeda; T. Kikawa; A. Minamino; T. Nakaya; K. Suzuki; S. Takahashi; Y. Fukuda; K. Choi; Y. Itow; G. Mitsuka; P. Mijakowski; J. Hignight; J. Imber; C. K. Jung; C. Yanagisawa; H. Ishino; A. Kibayashi; Y. Koshio; T. Mori; M. Sakuda; T. Yano; Y. Kuno; R. Tacik; S. B. Kim; H. Okazawa; Y. Choi; K. Nishijima; M. Koshiba; Y. Totsuka; M. Yokoyama; K. Martens; Ll Marti; M. R. Vagins; J. F. Martin; P. De Perio; A. Konaka; M. J. Wilking; S. Chen; Y. Zhang; R. J. Wilkes

doi:10.1103/PhysRevLett.112.091805

First indication of terrestrial matter effects on solar neutrino oscillation

A. Renshaw, K. Abe, Y. Hayato, K. Iyogi, J. Kameda, Y. Kishimoto, M. Miura, S. Moriyama, M. Nakahata, Y. Nakano, S. Nakayama, H. Sekiya, M. Shiozawa, Y. Suzuki, A. Takeda, Y. Takenaga, T. Tomura, K. Ueno, T. Yokozawa, R. A. WendellT. Irvine, T. Kajita, K. Kaneyuki, K. P. Lee, Y. Nishimura, K. Okumura, T. McLachlan, L. Labarga, S. Berkman, H. A. Tanaka, S. Tobayama, E. Kearns, J. L. Raaf, J. L. Stone, L. R. Sulak, M. Goldhabar, K. Bays, G. Carminati, W. R. Kropp, S. Mine, M. B. Smy, H. W. Sobel, K. S. Ganezer, J. Hill, W. E. Keig, N. Hong, J. Y. Kim, I. T. Lim, T. Akiri, A. Himmel, K. Scholberg, C. W. Walter, T. Wongjirad, T. Ishizuka, S. Tasaka, J. S. Jang, J. G. Learned, S. Matsuno, S. N. Smith, T. Hasegawa, T. Ishida, T. Ishii, T. Kobayashi, T. Nakadaira, K. Nakamura, Y. Oyama, K. Sakashita, T. Sekiguchi, T. Tsukamoto, A. T. Suzuki, Y. Takeuchi, C. Bronner, S. Hirota, K. Huang, K. Ieki, M. Ikeda, T. Kikawa, A. Minamino, T. Nakaya, K. Suzuki, S. Takahashi, Y. Fukuda, K. Choi, Y. Itow, G. Mitsuka, P. Mijakowski, J. Hignight, J. Imber, C. K. Jung, C. Yanagisawa, H. Ishino, A. Kibayashi, Y. Koshio, T. Mori, M. Sakuda, T. Yano, Y. Kuno, R. Tacik, S. B. Kim, H. Okazawa, Y. Choi, K. Nishijima, M. Koshiba, Y. Totsuka, M. Yokoyama, K. Martens, Ll Marti, M. R. Vagins, J. F. Martin, P. De Perio, A. Konaka, M. J. Wilking, S. Chen, Y. Zhang, R. J. Wilkes

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Abstract

We report an indication that the elastic scattering rate of solar B8 neutrinos with electrons in the Super-Kamiokande detector is larger when the neutrinos pass through Earth during nighttime. We determine the day-night asymmetry, defined as the difference of the average day rate and average night rate divided by the average of those two rates, to be [-3.2±1.1(stat) ±0.5(syst)]%, which deviates from zero by 2.7σ. Since the elastic scattering process is mostly sensitive to electron-flavored solar neutrinos, a nonzero day-night asymmetry implies that the flavor oscillations of solar neutrinos are affected by the presence of matter within the neutrinos' flight path. Super-Kamiokande's day-night asymmetry is consistent with neutrino oscillations for 4×10-5 eV2≤Δm212≤7×10-5 eV2 and large mixing values of θ12, at the 68% C.L.

Original language	English
Article number	091805
Journal	Physical review letters
Volume	112
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevLett.112.091805
Publication status	Published - 2014 Mar 7
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1103/PhysRevLett.112.091805

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Renshaw, A., Abe, K., Hayato, Y., Iyogi, K., Kameda, J., Kishimoto, Y., Miura, M., Moriyama, S., Nakahata, M., Nakano, Y., Nakayama, S., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Tomura, T., Ueno, K., Yokozawa, T., ... Wilkes, R. J. (2014). First indication of terrestrial matter effects on solar neutrino oscillation. Physical review letters, 112(9), [091805]. https://doi.org/10.1103/PhysRevLett.112.091805

Renshaw, A, Abe, K, Hayato, Y, Iyogi, K, Kameda, J, Kishimoto, Y, Miura, M, Moriyama, S, Nakahata, M, Nakano, Y, Nakayama, S, Sekiya, H, Shiozawa, M, Suzuki, Y, Takeda, A, Takenaga, Y, Tomura, T, Ueno, K, Yokozawa, T, Wendell, RA, Irvine, T, Kajita, T, Kaneyuki, K, Lee, KP, Nishimura, Y, Okumura, K, McLachlan, T, Labarga, L, Berkman, S, Tanaka, HA, Tobayama, S, Kearns, E, Raaf, JL, Stone, JL, Sulak, LR, Goldhabar, M, Bays, K, Carminati, G, Kropp, WR, Mine, S, Smy, MB, Sobel, HW, Ganezer, KS, Hill, J, Keig, WE, Hong, N, Kim, JY, Lim, IT, Akiri, T, Himmel, A, Scholberg, K, Walter, CW, Wongjirad, T, Ishizuka, T, Tasaka, S, Jang, JS, Learned, JG, Matsuno, S, Smith, SN, Hasegawa, T, Ishida, T, Ishii, T, Kobayashi, T, Nakadaira, T, Nakamura, K, Oyama, Y, Sakashita, K, Sekiguchi, T, Tsukamoto, T, Suzuki, AT, Takeuchi, Y, Bronner, C, Hirota, S, Huang, K, Ieki, K, Ikeda, M, Kikawa, T, Minamino, A, Nakaya, T, Suzuki, K, Takahashi, S, Fukuda, Y, Choi, K, Itow, Y, Mitsuka, G, Mijakowski, P, Hignight, J, Imber, J, Jung, CK, Yanagisawa, C, Ishino, H, Kibayashi, A, Koshio, Y, Mori, T, Sakuda, M, Yano, T, Kuno, Y, Tacik, R, Kim, SB, Okazawa, H, Choi, Y, Nishijima, K, Koshiba, M, Totsuka, Y, Yokoyama, M, Martens, K, Marti, L, Vagins, MR, Martin, JF, De Perio, P, Konaka, A, Wilking, MJ, Chen, S, Zhang, Y & Wilkes, RJ 2014, 'First indication of terrestrial matter effects on solar neutrino oscillation', Physical review letters, vol. 112, no. 9, 091805. https://doi.org/10.1103/PhysRevLett.112.091805

@article{2b74c46f113745238df2068c73d9c73a,

title = "First indication of terrestrial matter effects on solar neutrino oscillation",

abstract = "We report an indication that the elastic scattering rate of solar B8 neutrinos with electrons in the Super-Kamiokande detector is larger when the neutrinos pass through Earth during nighttime. We determine the day-night asymmetry, defined as the difference of the average day rate and average night rate divided by the average of those two rates, to be [-3.2±1.1(stat) ±0.5(syst)]%, which deviates from zero by 2.7σ. Since the elastic scattering process is mostly sensitive to electron-flavored solar neutrinos, a nonzero day-night asymmetry implies that the flavor oscillations of solar neutrinos are affected by the presence of matter within the neutrinos' flight path. Super-Kamiokande's day-night asymmetry is consistent with neutrino oscillations for 4×10-5 eV2≤Δm212≤7×10-5 eV2 and large mixing values of θ12, at the 68% C.L.",

author = "A. Renshaw and K. Abe and Y. Hayato and K. Iyogi and J. Kameda and Y. Kishimoto and M. Miura and S. Moriyama and M. Nakahata and Y. Nakano and S. Nakayama and H. Sekiya and M. Shiozawa and Y. Suzuki and A. Takeda and Y. Takenaga and T. Tomura and K. Ueno and T. Yokozawa and Wendell, {R. A.} and T. Irvine and T. Kajita and K. Kaneyuki and Lee, {K. P.} and Y. Nishimura and K. Okumura and T. McLachlan and L. Labarga and S. Berkman and Tanaka, {H. A.} and S. Tobayama and E. Kearns and Raaf, {J. L.} and Stone, {J. L.} and Sulak, {L. R.} and M. Goldhabar and K. Bays and G. Carminati and Kropp, {W. R.} and S. Mine and Smy, {M. B.} and Sobel, {H. W.} and Ganezer, {K. S.} and J. Hill and Keig, {W. E.} and N. Hong and Kim, {J. Y.} and Lim, {I. T.} and T. Akiri and A. Himmel and K. Scholberg and Walter, {C. W.} and T. Wongjirad and T. Ishizuka and S. Tasaka and Jang, {J. S.} 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 Y. Oyama and K. Sakashita and T. Sekiguchi and T. Tsukamoto and Suzuki, {A. T.} and Y. Takeuchi and C. Bronner and S. Hirota and K. Huang and K. Ieki and M. Ikeda and T. Kikawa and A. Minamino and T. Nakaya and K. Suzuki and S. Takahashi and Y. Fukuda and K. Choi and Y. Itow and G. Mitsuka and P. Mijakowski and J. Hignight and J. Imber and Jung, {C. K.} and C. Yanagisawa and H. Ishino and A. Kibayashi and Y. Koshio and T. Mori and M. Sakuda and T. Yano and Y. Kuno and R. Tacik and Kim, {S. B.} and H. Okazawa and Y. Choi and K. Nishijima and M. Koshiba and Y. Totsuka and M. Yokoyama and K. Martens and Ll Marti and Vagins, {M. R.} and Martin, {J. F.} and {De Perio}, P. and A. Konaka and Wilking, {M. J.} and S. Chen and Y. Zhang and Wilkes, {R. J.}",

year = "2014",

month = mar,

day = "7",

doi = "10.1103/PhysRevLett.112.091805",

language = "English",

volume = "112",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "9",

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TY - JOUR

T1 - First indication of terrestrial matter effects on solar neutrino oscillation

AU - Renshaw, A.

AU - Abe, K.

AU - Hayato, Y.

AU - Iyogi, K.

AU - Kameda, J.

AU - Kishimoto, Y.

AU - Miura, M.

AU - Moriyama, S.

AU - Nakahata, M.

AU - Nakano, Y.

AU - Nakayama, S.

AU - Sekiya, H.

AU - Shiozawa, M.

AU - Suzuki, Y.

AU - Takeda, A.

AU - Takenaga, Y.

AU - Tomura, T.

AU - Ueno, K.

AU - Yokozawa, T.

AU - Wendell, R. A.

AU - Irvine, T.

AU - Kajita, T.

AU - Kaneyuki, K.

AU - Lee, K. P.

AU - Nishimura, Y.

AU - Okumura, K.

AU - McLachlan, T.

AU - Labarga, L.

AU - Berkman, S.

AU - Tanaka, H. A.

AU - Tobayama, S.

AU - Kearns, E.

AU - Raaf, J. L.

AU - Stone, J. L.

AU - Sulak, L. R.

AU - Goldhabar, M.

AU - Bays, K.

AU - Carminati, G.

AU - Kropp, W. R.

AU - Mine, S.

AU - Smy, M. B.

AU - Sobel, H. W.

AU - Ganezer, K. S.

AU - Hill, J.

AU - Keig, W. E.

AU - Hong, N.

AU - Kim, J. Y.

AU - Lim, I. T.

AU - Akiri, T.

AU - Himmel, A.

AU - Scholberg, K.

AU - Walter, C. W.

AU - Wongjirad, T.

AU - Ishizuka, T.

AU - Tasaka, S.

AU - Jang, J. 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 - Oyama, Y.

AU - Sakashita, K.

AU - Sekiguchi, T.

AU - Tsukamoto, T.

AU - Suzuki, A. T.

AU - Takeuchi, Y.

AU - Bronner, C.

AU - Hirota, S.

AU - Huang, K.

AU - Ieki, K.

AU - Ikeda, M.

AU - Kikawa, T.

AU - Minamino, A.

AU - Nakaya, T.

AU - Suzuki, K.

AU - Takahashi, S.

AU - Fukuda, Y.

AU - Choi, K.

AU - Itow, Y.

AU - Mitsuka, G.

AU - Mijakowski, P.

AU - Hignight, J.

AU - Imber, J.

AU - Jung, C. K.

AU - Yanagisawa, C.

AU - Ishino, H.

AU - Kibayashi, A.

AU - Koshio, Y.

AU - Mori, T.

AU - Sakuda, M.

AU - Yano, T.

AU - Kuno, Y.

AU - Tacik, R.

AU - Kim, S. B.

AU - Okazawa, H.

AU - Choi, Y.

AU - Nishijima, K.

AU - Koshiba, M.

AU - Totsuka, Y.

AU - Yokoyama, M.

AU - Martens, K.

AU - Marti, Ll

AU - Vagins, M. R.

AU - Martin, J. F.

AU - De Perio, P.

AU - Konaka, A.

AU - Wilking, M. J.

AU - Chen, S.

AU - Zhang, Y.

AU - Wilkes, R. J.

PY - 2014/3/7

Y1 - 2014/3/7

N2 - We report an indication that the elastic scattering rate of solar B8 neutrinos with electrons in the Super-Kamiokande detector is larger when the neutrinos pass through Earth during nighttime. We determine the day-night asymmetry, defined as the difference of the average day rate and average night rate divided by the average of those two rates, to be [-3.2±1.1(stat) ±0.5(syst)]%, which deviates from zero by 2.7σ. Since the elastic scattering process is mostly sensitive to electron-flavored solar neutrinos, a nonzero day-night asymmetry implies that the flavor oscillations of solar neutrinos are affected by the presence of matter within the neutrinos' flight path. Super-Kamiokande's day-night asymmetry is consistent with neutrino oscillations for 4×10-5 eV2≤Δm212≤7×10-5 eV2 and large mixing values of θ12, at the 68% C.L.

AB - We report an indication that the elastic scattering rate of solar B8 neutrinos with electrons in the Super-Kamiokande detector is larger when the neutrinos pass through Earth during nighttime. We determine the day-night asymmetry, defined as the difference of the average day rate and average night rate divided by the average of those two rates, to be [-3.2±1.1(stat) ±0.5(syst)]%, which deviates from zero by 2.7σ. Since the elastic scattering process is mostly sensitive to electron-flavored solar neutrinos, a nonzero day-night asymmetry implies that the flavor oscillations of solar neutrinos are affected by the presence of matter within the neutrinos' flight path. Super-Kamiokande's day-night asymmetry is consistent with neutrino oscillations for 4×10-5 eV2≤Δm212≤7×10-5 eV2 and large mixing values of θ12, at the 68% C.L.

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UR - http://www.scopus.com/inward/citedby.url?scp=84896368473&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.112.091805

DO - 10.1103/PhysRevLett.112.091805

M3 - Article

AN - SCOPUS:84896368473

SN - 0031-9007

VL - 112

JO - Physical Review Letters

JF - Physical Review Letters

IS - 9

M1 - 091805

ER -

First indication of terrestrial matter effects on solar neutrino oscillation

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