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Journal Articles Physical Review Letters Year : 2011

Precision Measurement of the Be7 Solar Neutrino Interaction Rate in Borexino

G. Bellini
  • Function : Author
J. Benziger
  • Function : Author
D. Bick
  • Function : Author
S. Bonetti
  • Function : Author
G. Bonfini
  • Function : Author
M. Buizza Avanzini
  • Function : Author
B. Caccianiga
  • Function : Author
L. Cadonati
  • Function : Author
F. Calaprice
  • Function : Author
C. Carraro
  • Function : Author
P. Cavalcante
  • Function : Author
A. Chavarria
  • Function : Author
D. d'Angelo
  • Function : Author
S. Davini
  • Function : Author
A. Derbin
  • Function : Author
A. Etenko
  • Function : Author
K. Fomenko
  • Function : Author
D. Franco
C. Galbiati
  • Function : Author
S. Gazzana
  • Function : Author
C. Ghiano
  • Function : Author
M. Giammarchi
  • Function : Author
M. Goeger-Neff
  • Function : Author
A. Goretti
  • Function : Author
L. Grandi
  • Function : Author
E. Guardincerri
  • Function : Author
S. Hardy
  • Function : Author
Aldo Ianni
  • Function : Author
Andrea Ianni
  • Function : Author
V. Kobychev
  • Function : Author
D. Korablev
  • Function : Author
G. Korga
  • Function : Author
Y. Koshio
  • Function : Author
M. Laubenstein
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T. Lewke
  • Function : Author
E. Litvinovich
  • Function : Author
B. Loer
  • Function : Author
F. Lombardi
  • Function : Author
P. Lombardi
  • Function : Author
L. Ludhova
  • Function : Author
I. Machulin
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S. Manecki
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W. Maneschg
  • Function : Author
G. Manuzio
  • Function : Author
Q. Meindl
  • Function : Author
E. Meroni
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L. Miramonti
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M. Misiaszek
  • Function : Author
D. Montanari
  • Function : Author
P. Mosteiro
  • Function : Author
V. Muratova
  • Function : Author
L. Oberauer
  • Function : Author
F. Ortica
  • Function : Author
M. Pallavicini
L. Papp
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C. Peña-Garay
  • Function : Author
L. Perasso
  • Function : Author
S. Perasso
  • Function : Author
A. Pocar
  • Function : Author
R. S. Raghavan
  • Function : Author
G. Ranucci
  • Function : Author
A. Razeto
  • Function : Author
A. Re
  • Function : Author
A. Romani
  • Function : Author
A. Sabelnikov
  • Function : Author
R. Saldanha
  • Function : Author
C. Salvo
  • Function : Author
S. Schönert
  • Function : Author
H. Simgen
M. Skorokhvatov
  • Function : Author
O. Smirnov
  • Function : Author
A. Sotnikov
  • Function : Author
S. Sukhotin
  • Function : Author
Y. Suvorov
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R. Tartaglia
  • Function : Author
G. Testera
  • Function : Author
D. Vignaud
  • Function : Author
R. B. Vogelaar
  • Function : Author
F. von Feilitzsch
  • Function : Author
J. Winter
  • Function : Author
M. Wojcik
  • Function : Author
A. Wright
  • Function : Author
M. Wurm
  • Function : Author
J. Xu
  • Function : Author
O. Zaimidoroga
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S. Zavatarelli
  • Function : Author
G. Zuzel
  • Function : Author

Abstract

The rate of neutrino-electron elastic scattering interactions from 862 keV Be7 solar neutrinos in Borexino is determined to be 46.0±1.5(stat)-1.6+1.5(syst)counts/(day*100ton). This corresponds to a νe-equivalent Be7 solar neutrino flux of (3.10±0.15)×109cm-2s-1 and, under the assumption of νe transition to other active neutrino flavours, yields an electron neutrino survival probability of 0.51±0.07 at 862 keV. The no flavor change hypothesis is ruled out at 5.0σ. A global solar neutrino analysis with free fluxes determines Φpp=6.06-0.06+0.02×1010cm-2s-1 and ΦCNO<1.3×109cm-2s-1 (95% C.L.). These results significantly improve the precision with which the Mikheyev-Smirnov-Wolfenstein large mixing angle neutrino oscillation model is experimentally tested at low energy.

Dates and versions

in2p3-00659724 , version 1 (13-01-2012)

Identifiers

Cite

G. Bellini, J. Benziger, D. Bick, S. Bonetti, G. Bonfini, et al.. Precision Measurement of the Be7 Solar Neutrino Interaction Rate in Borexino. Physical Review Letters, 2011, 107, pp.141302. ⟨10.1103/PHYSREVLETT.107.141302⟩. ⟨in2p3-00659724⟩
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