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Measurement of7Be and8B solar neutrinos with BOREXINO

  • S. Zavatarelli
  • , G. Bellini
  • , J. Benziger
  • , S. Bonetti
  • , M. Buizza-Avanzini
  • , B. Caccianiga
  • , L. Cadonati
  • , F. Calaprice
  • , C. Carraro
  • , A. Chavarria
  • , F. Dalnoki-Veress
  • , D. D'Angelo
  • , S. Davina
  • , H. De Kerret
  • , A. Derbin
  • , A. Etenko
  • , K. Fomenko
  • , D. Franco
  • , C. Galbiati
  • , S. Gazzana
  • M. 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
  • University of Genoa
  • University of Milano
  • Princeton University
  • UMass Amherst
  • Princeton University
  • Astroparticule and Cosmol APC
  • Petersburg Nuclear Physics Institute (PNPI)
  • Kurchatov Institute
  • Joint Institute for Nuclear Research, Dubna
  • Laboratori Nazionali del Gran Sasso
  • Technical University of Munich
  • Virginia Polytechnic Institute and State University
  • Institute of Nuclear Research, National Academy of Sciences in Ukraine
  • Max-Planck-Institut für Kernphysik
  • University of Perugia
  • Jagiellonian University

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

Résumé

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 v) and matter-enhanced regions (8B v) 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.

langue originaleAnglais
Pages (de - à)37-44
Nombre de pages8
journalNuovo Cimento della Societa Italiana di Fisica C
Volume32
Numéro de publication5-6
Les DOIs
étatPublié - 1 janv. 2009
Modification externeOui

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