Measurement of 7Be and 8B solar neutrinos with Borexino

S. Zavatarelli, G. Bellini, Jay Burton Benziger, S. Bonetti, M. Buizza-Avanzini, B. Caccianiga, L. Cadonati, Frank Calaprice, C. Carraro, A. Chavarria, F. Dalnoki-Veress, D. D'Angelo, S. Davini, H. De Kerret, A. Derbin, A. Etenko, K. Fomenko, D. Franco, Cristiano Galbiati, S. GazzanaM. Giammarchi, M. Goeger-Neff, A. Goretti, S. Hardy, Aldo Ianni, Andrea Ianni, M. Joyce, V. Kobychev, G. Korga, D. Kryn, M. Laubenstein, M. Leung, T. Lewke, E. Litninovich, B. Loer, P. Lombardi, L. Ludhova, I. Machulin, S. Manecki, W. Maneschg, G. Manuzio, F. Masetti, K. McCarty, Q. Meindl, E. Meroni, L. Miramonti, M. Misiaszek, D. Montanari, 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, P. Risso, A. Romani, D. Rountree, 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, F. Von Feilitzsch, M. Wojcik, M. Wurm, O. Zaimidoroga, G. Zuzel

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

Abstract

Borexino is a real-time liquid-scintillator detector for low-energy neutrino spectroscopy located at the Gran Sasso National Laboratories (Italy). Thanks to the unprecedented radiopurity of the target mass it is providing the first direct and simultaneous measurement of the solar neutrino survival probability in both vacuum-dominated (7Be ν) and matter-enhanced regions (8B ν) by a single experiment. The measured interaction rates for both the 7Be and 8B solar neutrinos are in fair agreement with the SSM predictions in case of the LMA-MSW oscillation solution and a further confirmation of the LMA scenario is provided by the absence of a day-night asymmetry in the 7Be signal. These experimental results allow to improve the upper limit on the neutrino effective magnetic moment. Calibration campaigns aiming to reduce the systematical errors on fiducial volume definition and detector energy response are presently in progress.

Original languageEnglish (US)
Title of host publicationLes Rencontres de Physique de la Vallee d'Aoste
Subtitle of host publicationResults and Perspectives in Particle Physics
Pages37-44
Number of pages8
EditionSPEC. ISS.
StatePublished - 2010
Event23rd Rencontres de Physique de la Vallee d'Aoste: Results and Perspectives in Particle Physics - 23rd Physics Conferences in the Aosta Valley 2009 - La Thuile, Aosta Valley, Italy
Duration: Mar 1 2009Mar 7 2009

Publication series

NameFrascati Physics Series
NumberSPEC. ISS.
Volume50
ISSN (Print)1122-5157

Other

Other23rd Rencontres de Physique de la Vallee d'Aoste: Results and Perspectives in Particle Physics - 23rd Physics Conferences in the Aosta Valley 2009
CountryItaly
CityLa Thuile, Aosta Valley
Period3/1/093/7/09

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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  • Cite this

    Zavatarelli, S., Bellini, G., Benziger, J. B., Bonetti, S., Buizza-Avanzini, M., Caccianiga, B., Cadonati, L., Calaprice, F., Carraro, C., Chavarria, A., Dalnoki-Veress, F., D'Angelo, D., Davini, S., De Kerret, H., Derbin, A., Etenko, A., Fomenko, K., Franco, D., Galbiati, C., ... Zuzel, G. (2010). Measurement of 7Be and 8B solar neutrinos with Borexino. In Les Rencontres de Physique de la Vallee d'Aoste: Results and Perspectives in Particle Physics (SPEC. ISS. ed., pp. 37-44). (Frascati Physics Series; Vol. 50, No. SPEC. ISS.).