Autores
T Araki, S Enomoto, K Furuno, Y Gando, K Ichimura, H Ikeda, K Inoue, Y Kishimoto, M Koga, Y Koseki, T Maeda, T Mitsui, M Motoki, K Nakajima, H Ogawa, M Ogawa, K Owada, J-S Ricol, I Shimizu, J Shirai, F Suekane, A Suzuki, K Tada, S Takeuchi, K Tamae, Y Tsuda, H Watanabe, J Busenitz, T Classen, Z Djurcic, G Keefer, D Leonard, A Piepke, E Yakushev, BE Berger, YD Chan, MP Decowski, DA Dwyer, SJ Freedman, BK Fujikawa, J Goldman, F Gray, KM Heeger, L Hsu, KT Lesko, K-B Luk, H Murayama, T O'Donnell, AWP Poon, HM Steiner, LA Winslow, C Mauger, RD McKeown, P Vogel, CE Lane, T Miletic, G Guillian, JG Learned, J Maricic, S Matsuno, S Pakvasa, GA Horton-Smith, S Dazeley, S Hatakeyama, A Rojas, R Svoboda, BD Dieterle, J Detwiler, G Gratta, K Ishii, N Tolich, Y Uchida, M Batygov, W Bugg, Y Efremenko, Y Kamyshkov, A Kozlov, Y Nakamura, HJ Karwowski, DM Markoff, K Nakamura, RM Rohm, W Tornow, R Wendell, M-J Chen, Y-F Wang, F Piquemal
Fecha de publicación
2005/7
Revista
Nature
Volumen
436
Número
7050
Páginas
499-503
Editor
Nature Publishing Group
Descripción
The detection of electron antineutrinos produced by natural radioactivity in the Earth could yield important geophysical information. The Kamioka liquid scintillator antineutrino detector (KamLAND) has the sensitivity to detect electron antineutrinos produced by the decay of 238 U and 232 Th within the Earth. Earth composition models suggest that the radiogenic power from these isotope decays is 16 TW, approximately half of the total measured heat dissipation rate from the Earth. Here we present results from a search for geoneutrinos with KamLAND. Assuming a Th/U mass concentration ratio of 3.9, the 90 per cent confidence interval for the total number of geoneutrinos detected is 4.5 to 54.2. This result is consistent with the central value of 19 predicted by geophysical models. Although our present data have limited statistical power, they nevertheless provide by direct means an upper limit (60 TW) for the …
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Artículos de Google Académico
T Araki, S Enomoto, K Furuno, Y Gando, K Ichimura… - Nature, 2005
