Solar neutrino physics with Borexino I
Abstract
Borexino is a large-volume liquid scintillator detector installed in the underground halls of the Laboratori Nazionali del Gran Sasso in Italy. After several years of construction, data taking started in May 2007. The Borexino phase I ended after about three years of data taking. Borexino provided the first real time measurement of the Be solar neutrino interaction rate with accuracy better than 5% and confirmed the absence of its day-night asymmetry with 1.4% precision. This latter Borexino results alone rejects the LOW region of solar neutrino oscillation parameters at more than 8.5 C.L. Combined with the other solar neutrino data, Borexino measurements isolate the MSW-LMA solution of neutrino oscillations without assuming CPT invariance in the neutrino sector. Borexino has also directly observed solar neutrinos in the 1.0-1.5 MeV energy range, leading to the first direct evidence of the solar neutrino signal and the strongest constraint of the CNO solar neutrino flux up to date. Borexino provided the measurement of the solar B neutrino rate with 3 MeV energy threshold.
Keywords
Cite
@article{arxiv.1205.2989,
title = {Solar neutrino physics with Borexino I},
author = {L. Ludhova and G. Bellini and J. Benziger and D. Bick and G. Bonfini and D. Bravo and M. Buizza Avanzini and B. Caccianiga and L. Cadonati and F. Calaprice and C. Carraro and P. Cavalcante and A. Chavarria and D. D'Angelo and S. Davini and A. Derbin and A. Etenko and K. Fomenko and D. Franco and C. Galbiati and S. Gazzana and C. Ghiano and M. Giammarchi and M. Goeger-Nef and A. Goretti and L. Grandi and E. Guardincerri and S. Hardy and Aldo Ianni and Andrea Ianni and A. Kayunov and V. Kobychev and D. Korablev and G. Korga and Y. Koshio and D. Kryn and M. Laubenstein and T. Lewke and E. Litvinovich and B. Loer and F. Lombardi and P. Lombardi and I. Machulin and S. Manecki and W. Maneschg and G. Manuzio and Q. Meindl and E. Meroni and L. Miramonti and M. Misiaszek and D. Montanari and P. Mosteiro and V. Muratova and L. Oberauer and M. Obolenksy and F. Ortica and K. Otis and M. Pallavicini and L. Papp and L. Perasso and S. Perasso and A. Pocar and R. S. Raghavan and G. Ranucci and A. Razeto and A. Re and P. A. Romani and A. Sabelnikov and R. Saldanha and C. Salvo and S. Schoenert and H. Simgen and M. Skorokhvatov and O. Smirnov and A. Sotnikov and S. Sukhotin and Y. Suvorov and R. Tartaglia and G. Testera and D. Vignaud and R. B. Vogelaar and F. Von Feilitzsch and J. Winter and M. Wojcik and A. Wright and M. Wurm and J. Xu and O. Zaimidoroga and S. Zavatarelli and G. Zuzel},
journal= {arXiv preprint arXiv:1205.2989},
year = {2012}
}
Comments
6 pages, 4 figures, proceedings to Moriond 2012 EW session