Study of solar and geo-neutrinos with the Borexino detector

Evgeny Litvinovich, G. Bellini, J. Benziger, D. Bick, S. Bonetti, M. Buizza Avanzini, B. Caccianiga, L. Cadonati, F. Calaprice, C. Carraro, P. Cavalcante, A. Chavarria, D. DAngelo, S. Davini, A. Derbin, A. Etenko, F. Von Feilitzsch, K. Fomenko, D. Franco, C. GalbiatiS. Gazzana, C. Ghiano, M. Giammarchi, M. Goger-Neff, A. Goretti, L. Grandi, E. Guardincerri, S. Hardy, Al Ianni, An Ianni, V. Kobychev, D. Korablev, G. Korga, Y. Koshio, D. Kryn, T. Lewke, E. Litvinovich, B. Loer, P. Lombardi, I. Machulin, S. Manecki, W. Maneschg, G. Manuzio, Q. Meindl, E. Meroni, L. Miramonti, M. Misiaszek, D. Montanari, P. Mosteiro, V. Muratova, L. Oberauer, M. Obolensky, F. Ortica, M. Pallavicini, L. Papp, L. Perasso, S. Perasso, A. Pocar, R. S. Raghavan, G. Ranucci, A. Razeto, A. Re, A. Romani, A. Sabelnikov, R. Saldanha, C. Salvo, S. Schonert, H. Simgen, M. Skorokhvatov, O. Smirnov, A. Sotnikov, S. Sukhotin, Y. Suvorov, R. Tartaglia, G. Testera, D. Vignaud, R. B. Vogelaar, J. Winter, M. Wojcik, A. Wright, M. Wurm, J. Xu, O. Zaimidoroga, S. Zavatarelli, G. Zuzel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Recent Borexino measurement of the 0.862 MeV 7Be solar neutrino interaction rate yielded 46.0±1.5stat-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 3σ C.L. of geo-neutrinos. Borexino measurement of the geo-neutrinos rate is 3.9+1.6-1.3(+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.

Original languageEnglish
Title of host publicationProceedings of the 15th Lomonosov Conference on Elementary Particle Physics
Subtitle of host publicationParticle Physics at the Tercentenary of Mikhail Lomonosov
PublisherWorld Scientific Publishing Co. Pte Ltd
Pages173-176
Number of pages4
ISBN (Print)9789814436823
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event15th Lomonosov Conference on Elementary Particle Physics 2011 - Moscow, Russian Federation
Duration: Aug 18 2011Aug 24 2011

Publication series

NameProceedings of the 15th Lomonosov Conference on Elementary Particle Physics: Particle Physics at the Tercentenary of Mikhail Lomonosov

Other

Other15th Lomonosov Conference on Elementary Particle Physics 2011
CountryRussian Federation
CityMoscow
Period8/18/118/24/11

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Nuclear and High Energy Physics

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  • Cite this

    Litvinovich, E., Bellini, G., Benziger, J., Bick, D., Bonetti, S., Buizza Avanzini, M., Caccianiga, B., Cadonati, L., Calaprice, F., Carraro, C., Cavalcante, P., Chavarria, A., DAngelo, D., Davini, S., Derbin, A., Etenko, A., Von Feilitzsch, F., Fomenko, K., Franco, D., ... Zuzel, G. (2013). Study of solar and geo-neutrinos with the Borexino detector. In Proceedings of the 15th Lomonosov Conference on Elementary Particle Physics: Particle Physics at the Tercentenary of Mikhail Lomonosov (pp. 173-176). (Proceedings of the 15th Lomonosov Conference on Elementary Particle Physics: Particle Physics at the Tercentenary of Mikhail Lomonosov). World Scientific Publishing Co. Pte Ltd. https://doi.org/10.1142/9789814436830_0037