STUDY OF SOLAR AND GEO-NEUTRINOS WITH THE BOREXINO DETECTOR

被引：0

作者：

Litvinovich, Evgeny ^{[1
]}

机构：

[1] NRC Kurchatov Inst, Moscow 123182, Russia

来源：

PARTICLE PHYSICS AT THE TERCENTENARY OF MIKHAIL LOMONOSOV | 2013年

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中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Recent Borexino measurement of the 0.862 MeV Be-7 solar neutrino interaction rate yielded 46.0 +/- 1.5(stat-1.5syst)(+1.6) counts/(day . 100 tons). This is the first direct measurement of a sub-MeV solar neutrino rate with an accuracy better than 5%. Using the latest Standard Solar Model (SSM) flux predictions, the result permits to probe with unprecedented sensitivity the transition between the matter-enhanced and vacuum-dominated neutrino oscillation regimes characteristic of the MSW-LMA solution to the solar neutrino problem. Geo-neutrinos are a unique direct probe of Earth's interior. Recently Borexino has reported the first observation at more than 3 sigma C.L. of geo-neutrinos. Borexino measurement of the geo-neutrinos rate is 3.9(-1.3)(+1.6)((+5.8)(-3.2)) events/(yr . 100 tons) with errors corresponding to a 68.3% (99.73%) C.L. Hypothesis of an active geo-reactor in the Earth's core with a power above 3 TW is rejected at 95% C.L.

引用

页码：173 / 176

页数：4

共 3 条

[1] Precision measurement of neutrino oscillation parameters with KamLAND [J].

Abe, S. ;

Ebihara, T. ;

Enomoto, S. ;

Furuno, K. ;

Gando, Y. ;

Ichimura, K. ;

Ikeda, H. ;

Inoue, K. ;

Kibe, Y. ;

Kishimoto, Y. ;

Koga, M. ;

Kozlov, A. ;

Minekawa, Y. ;

Mitsui, T. ;

Nakajima, K. ;

Nakamura, K. ;

Nakamura, M. ;

Owada, K. ;

Shimizu, I. ;

Shimizu, Y. ;

Shirai, J. ;

Suekane, F. ;

Suzuki, A. ;

Takemoto, Y. ;

Tamae, K. ;

Terashima, A. ;

Watanabe, H. ;

Yonezawa, E. ;

Yoshida, S. ;

Busenitz, J. ;

Classen, T. ;

Grant, C. ;

Keefer, G. ;

Leonard, D. S. ;

McKee, D. ;

Piepke, A. ;

Decowski, M. P. ;

Detwiler, J. A. ;

Freedman, S. J. ;

Fujikawa, B. K. ;

Gray, F. ;

Guardincerri, E. ;

Hsu, L. ;

Kadel, R. ;

Lendvai, C. ;

Luk, K. -B. ;

Murayama, H. ;

O'Donnell, T. ;

Steiner, H. M. .

PHYSICAL REVIEW LETTERS, 2008, 100 (22)

[2] Precision Measurement of the 7Be Solar Neutrino Interaction Rate in Borexino [J].

Bellini, G. ;

Benziger, J. ;

Bick, D. ;

Bonetti, S. ;

Bonfini, G. ;

Avanzini, M. Buizza ;

Caccianiga, B. ;

Cadonati, L. ;

Calaprice, F. ;

Carraro, C. ;

Cavalcante, P. ;

Chavarria, A. ;

D'Angelo, D. ;

Davini, S. ;

Derbin, A. ;

Etenko, A. ;

Fomenko, K. ;

Franco, D. ;

Galbiati, C. ;

Gazzana, S. ;

Ghiano, C. ;

Giammarchi, M. ;

Goeger-Neff, M. ;

Goretti, A. ;

Grandi, L. ;

Guardincerri, E. ;

Hardy, S. ;

Ianni, Aldo ;

Ianni, Andrea ;

Kobychev, V. ;

Korablev, D. ;

Korga, G. ;

Koshio, Y. ;

Kryn, D. ;

Laubenstein, M. ;

Lewke, T. ;

Litvinovich, E. ;

Loer, B. ;

Lombardi, F. ;

Lombardi, P. ;

Ludhova, L. ;

Machulin, I. ;

Manecki, S. ;

Maneschg, W. ;

Manuzio, G. ;

Meindl, Q. ;

Meroni, E. ;

Miramonti, L. ;

Misiaszek, M. ;

Montanari, D. .

PHYSICAL REVIEW LETTERS, 2011, 107 (14)

[3] Observation of geo-neutrinos [J].

Bellini, G. ;

Benziger, J. ;

Bonetti, S. ;

Avanzini, M. Buizza ;

Caccianiga, B. ;

Cadonati, L. ;

Calaprice, F. ;

Carraro, C. ;

Chavarria, A. ;

Dalnoki-Veress, F. ;

D'Angelo, D. ;

Davini, S. ;

de Kerret, H. ;

Dubin, A. ;

Etenko, A. ;

Fiorentini, G. ;

Fomenko, K. ;

Franco, D. ;

Galbiati, C. ;

Gazzana, S. ;

Ghiano, C. ;

Giammarchi, M. ;

Goeger-Neff, M. ;

Goretti, A. ;

Guardincerri, E. ;

Hardy, S. ;

Ianni, Aldo ;

Ianni, Andrea ;

Joyce, M. ;

Kobychev, V. V. ;

Koshio, Y. ;

Korga, G. ;

Kryn, D. ;

Laubenstein, M. ;

Leung, M. ;

Lewke, T. ;

Litvinovich, E. ;

Loer, B. ;

Lombardi, P. ;

Ludhova, L. ;

Machulin, I. ;

Manecki, S. ;

Maneschg, W. ;

Manuzio, G. ;

Meindl, Q. ;

Meroni, E. ;

Miramonti, L. ;

Misiaszek, M. ;

Montanari, D. ;

Muratova, V. .

PHYSICS LETTERS B, 2010, 687 (4-5) :299-304

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