Borexino is a large-volume liquid scintillator detector placed in the underground halls of the Laboratori Nazionali del Gran Sasso in Italy. It is able to detect in real time neutrino interactions below 2 MeV, due to the very high radio-purity reached by the detector. The interaction rate of the 0.862 MeV 7Be neutrinos is 49±3(stat)±4(syst) counts/(day·100 ton) , in agreement with the oscillation hypothesis in theMSWLargeMixing Angle scenario. Our result is the first direct measurement of the survival probability for solar ne in the transition region between matter-enhanced and vacuum-driven oscillations.

Last borexino result

ELISEI, Fausto;MASETTI, Fausto;MAZZUCATO, Ugo;ORTICA, Fausto;ROMANI, Aldo;
2009-01-01

Abstract

Borexino is a large-volume liquid scintillator detector placed in the underground halls of the Laboratori Nazionali del Gran Sasso in Italy. It is able to detect in real time neutrino interactions below 2 MeV, due to the very high radio-purity reached by the detector. The interaction rate of the 0.862 MeV 7Be neutrinos is 49±3(stat)±4(syst) counts/(day·100 ton) , in agreement with the oscillation hypothesis in theMSWLargeMixing Angle scenario. Our result is the first direct measurement of the survival probability for solar ne in the transition region between matter-enhanced and vacuum-driven oscillations.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11391/1416573
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