Passer à la navigation principale Passer à la recherche Passer au contenu principal

Measurement of the solar B8 neutrino rate with a liquid scintillator target and 3 MeV energy threshold in the Borexino detector

  • G. Bellini
  • , J. Benziger
  • , S. Bonetti
  • , M. Buizza Avanzini
  • , B. Caccianiga
  • , L. Cadonati
  • , F. Calaprice
  • , C. Carraro
  • , A. Chavarria
  • , A. Chepurnov
  • , F. Dalnoki-Veress
  • , D. D'Angelo
  • , S. Davini
  • , H. De Kerret
  • , A. Derbin
  • , A. Etenko
  • , K. Fomenko
  • , D. Franco
  • , C. Galbiati
  • , S. Gazzana
  • C. Ghiano, M. Giammarchi, M. Goeger-Neff, A. Goretti, E. Guardincerri, S. Hardy, Aldo Ianni, Andrea Ianni, M. Joyce, G. Korga, D. Kryn, M. Laubenstein, M. Leung, T. Lewke, E. Litvinovich, B. Loer, P. Lombardi, L. Ludhova, I. MacHulin, S. Manecki, W. Maneschg, G. Manuzio, 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, A. Re, P. Risso, A. Romani, D. Rountree, A. Sabelnikov, R. Saldanha, C. Salvo, S. Schönert, H. Simgen, M. Skorokhvatov, O. Smirnov, A. Sotnikov, S. Sukhotin, Y. Suvorov, R. Tartaglia, G. Testera, D. Vignaud, R. B. Vogelaar, F. Von Feilitzsch, J. Winter, M. Wojcik, A. Wright, M. Wurm, J. Xu, O. Zaimidoroga, S. Zavatarelli, G. Zuzel
  • University of Milano
  • Princeton University
  • UMass Amherst
  • Princeton University
  • Università di Milano-Bicocca
  • Moscow State 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
  • Max-Planck-Institut für Kernphysik
  • Jagiellonian University

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

Résumé

We report the measurement of ν-e elastic scattering from B8 solar neutrinos with 3 MeV energy threshold by the Borexino detector in Gran Sasso (Italy). The rate of solar neutrino-induced electron scattering events above this energy in Borexino is 0.22±0.04(stat)±0.01(syst)cpd/100t, which corresponds to ΦB8ES=2.4±0.4±0.1×106cm -2s-1, in good agreement with measurements from SNO and SuperKamiokaNDE. Assuming the B8 neutrino flux predicted by the high metallicity standard solar model, the average B8 νe survival probability above 3 MeV is measured to be 0.29±0.10. The survival probabilities for Be7 and B8 neutrinos as measured by Borexino differ by 1.9σ. These results are consistent with the prediction of the MSW-LMA solution of a transition in the solar νe survival probability Pee between the low-energy vacuum-driven and the high-energy matter-enhanced solar neutrino oscillation regimes.

langue originaleAnglais
Numéro d'article033006
journalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume82
Numéro de publication3
Les DOIs
étatPublié - 5 août 2010
Modification externeOui

Empreinte digitale

Examiner les sujets de recherche de « Measurement of the solar B8 neutrino rate with a liquid scintillator target and 3 MeV energy threshold in the Borexino detector ». Ensemble, ils forment une empreinte digitale unique.

Contient cette citation