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First Indication of Terrestrial Matter Effects on Solar Neutrino Oscillation
- Authors
- Renshaw, A[Renshaw, A.]; Abe, K[Abe, K.]; Hayato, Y[Hayato, Y.]; Iyogi, K[Iyogi, K.]; Kameda, J[Kameda, J.]; Kishimoto, Y[Kishimoto, Y.]; Miura, M[Miura, M.]; Moriyama, S[Moriyama, S.]; Nakahata, M[Nakahata, M.]; Nakano, Y[Nakano, Y.]; Nakayama, S[Nakayama, S.]; Sekiya, H[Sekiya, H.]; Shiozawa, M[Shiozawa, M.]; Suzuki, Y[Suzuki, Y.]; Takeda, A[Takeda, A.]; Takenaga, Y[Takenaga, Y.]; Tomura, T[Tomura, T.]; Ueno, K[Ueno, K.]; Yokozawa, T[Yokozawa, T.]; Wendell, RA[Wendell, R. A.]; Irvine, T[Irvine, T.]; Kajita, T[Kajita, T.]; Kaneyuki, K[Kaneyuki, K.]; Lee, KP[Lee, K. P.]; Nishimura, Y[Nishimura, Y.]; Okumura, K[Okumura, K.]; McLachlan, T[McLachlan, T.]; Labarga, L[Labarga, L.]; Berkman, S[Berkman, S.]; Tanaka, HA[Tanaka, H. A.]; Tobayama, S[Tobayama, S.]; Kearns, E[Kearns, E.]; Raaf, JL[Raaf, J. L.]; Stone, JL[Stone, J. L.]; Sulak, LR[Sulak, L. R.]; Goldhabar, M[Goldhabar, M.]; Bays, K[Bays, K.]; Carminati, G[Carminati, G.]; Kropp, WR[Kropp, W. R.]; Mine, S[Mine, S.]; Smy, MB[Smy, M. B.]; Sobel, HW[Sobel, H. W.]; Ganezer, KS[Ganezer, K. S.]; Hill, J[Hill, J.]; Keig, WE[Keig, W. E.]; Hong, N[Hong, N.]; Kim, JY[Kim, J. Y.]; Lim, IT[Lim, I. T.]; Akiri, T[Akiri, T.]; Himmel, A[Himmel, A.]; Scholberg, K[Scholberg, K.]; Walter, CW[Walter, C. W.]; Wongjirad, T[Wongjirad, T.]; Ishizuka, T[Ishizuka, T.]; Tasaka, S[Tasaka, S.]; Jang, JS[Jang, J. S.]; Learned, JG[Learned, J. G.]; Matsuno, S[Matsuno, S.]; Smith, SN[Smith, S. N.]; Hasegawa, T[Hasegawa, T.]; Ishida, T[Ishida, T.]; Ishii, T[Ishii, T.]; Kobayashi, T[Kobayashi, T.]; Nakadaira, T[Nakadaira, T.]; Nakamura, K[Nakamura, K.]; Oyama, Y[Oyama, Y.]; Sakashita, K[Sakashita, K.]; Sekiguchi, T[Sekiguchi, T.]; Tsukamoto, T[Tsukamoto, T.]; Suzuki, AT[Suzuki, A. T.]; Takeuchi, Y[Takeuchi, Y.]; Bronner, C[Bronner, C.]; Hirota, S[Hirota, S.]; Huang, K[Huang, K.]; Ieki, K[Ieki, K.]; Ikeda, M[Ikeda, M.]; Kikawa, T[Kikawa, T.]; Minamino, A[Minamino, A.]; Nakaya, T[Nakaya, T.]; Suzuki, K[Suzuki, K.]; Takahashi, S[Takahashi, S.]; Fukuda, Y[Fukuda, Y.]; Choi, K[Choi, K.]; Itow, Y[Itow, Y.]; Mitsuka, G[Mitsuka, G.]; Mijakowski, P[Mijakowski, P.]; Hignight, J[Hignight, J.]; Imber, J[Imber, J.]; Jung, CK[Jung, C. K.]; Yanagisawa, C[Yanagisawa, C.]; Ishino, H[Ishino, H.]; Kibayashi, A[Kibayashi, A.]; Koshio, Y[Koshio, Y.]; Mori, T[Mori, T.]; Sakuda, M[Sakuda, M.]; Yano, T[Yano, T.]; Kuno, Y[Kuno, Y.]; Tacik, R[Tacik, R.]; Kim, SB[Kim, S. B.]; Okazawa, H[Okazawa, H.]; Choi, Y[Choi, Y.]; Nishijima, K[Nishijima, K.]; Koshiba, M[Koshiba, M.]; Totsuka, Y[Totsuka, Y.]; Yokoyama, M[Yokoyama, M.]; Martens, K[Martens, K.]; Marti, L[Marti, Ll.]; Vagins, MR[Vagins, M. R.]; Martin, JF[Martin, J. F.]; de Perio, P[de Perio, P.]; Konaka, A[Konaka, A.]; Wilking, MJ[Wilking, M. J.]; Chen, S[Chen, S.]; Zhang, Y[Zhang, Y.]; Wilkes, RJ[Wilkes, R. J.]
- Issue Date
- 7-Mar-2014
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW LETTERS, v.112, no.9
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW LETTERS
- Volume
- 112
- Number
- 9
- ISSN
- 0031-9007
- Abstract
- We report an indication that the elastic scattering rate of solar B-8 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 2.7 sigma. 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 x 10(-5) eV(2) <= Delta m(21)(2) <= 7 x 10(-5) eV(2) and large mixing values of theta(12), at the 68% C.L.
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Collections - Science > Department of Physics > 1. Journal Articles
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