High Sensitivity Search for [Formula presented]’s from the Sun and Other Sources at KamLAND

K. Eguchi, S. Enomoto, K. Furuno, H. Ikeda, K. Ikeda, K. Inoue, K. Ishihara, T. Iwamoto, T. Kawashima, Y. Kishimoto, M. Koga, Y. Koseki, T. Maeda, T. Mitsui, M. Motoki, K. Nakajima, H. Ogawa, K. Owada, F. Piquemal, I. ShimizuJ. Shirai, F. Suekane, A. Suzuki, K. Tada, O. Tajima, T. Takayama, K. Tamae, H. Watanabe, J. Busenitz, Z. Djurcic, K. McKinny, D. M. Mei, A. Piepke, E. Yakushev, B. E. Berger, Y. D. Chan, M. P. Decowski, D. A. Dwyer, S. J. Freedman, Y. Fu, B. K. Fujikawa, J. Goldman, K. M. Heeger, K. T. Lesko, K. B. Luk, H. Murayama, D. R. Nygren, C. E. Okada, A. W.P. Poon, H. M. Steiner, L. A. Winslow, G. A. Horton-Smith, C. Mauger, R. D. McKeown, B. Tipton, P. Vogel, C. E. Lane, T. Miletic, P. W. Gorham, G. Guillian, J. G. Learned, J. Maricic, S. Matsuno, S. Pakvasa, S. Dazeley, S. Hatakeyama, R. Svoboda, B. D. Dieterle, M. DiMauro, J. Detwiler, G. Gratta, K. Ishii, N. Tolich, Y. Uchida, M. Batygov, W. Bugg, Y. Efremenko, Y. Kamyshkov, A. Kozlov, Y. Nakamura, C. R. Gould, H. J. Karwowski, D. M. Markoff, J. A. Messimore, K. Nakamura, R. M. Rohm, W. Tornow, A. R. Young, M. J. Chen, Y. F. Wang

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1 Citation (Scopus)

Abstract

Data corresponding to a KamLAND detector exposure of 0.28 kton yr has been used to search for [Formula presented]’s in the energy range [Formula presented]. No candidates were found for an expected background of [Formula presented] events. This result can be used to obtain a limit on [Formula presented] fluxes of any origin. Assuming that all [Formula presented] flux has its origin in the Sun and has the characteristic [Formula presented] solar [Formula presented] energy spectrum, we obtain an upper limit of [Formula presented] (90% C.L.) on the [Formula presented] flux. We interpret this limit, corresponding to [Formula presented] of the standard solar model [Formula presented] [Formula presented] flux, in the framework of spin-flavor precession and neutrino decay models.

Original languageEnglish
JournalPhysical Review Letters
Volume92
Issue number7
DOIs
Publication statusPublished - 2004 Jan 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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