A. Vishneva - Simultaneous spectroscopy of pp, 7Be and pep solar neutrinos in the Phase II of Borexino experiment

by Alina Vishneva (JINR Dubna, Russia)

Monday 20 Nov 2017, 14:30 → 15:30 Europe/Rome

Pontecorvo room (LNGS)

The recent analysis of the Borexino Phase II data gives new results for fluxes of solar neutrinos from pp, ⁷Be and pep reactions with a significantly better precision. Namely, pp and ⁷Be neutrino fluxes are measured with 10% and 3% precision, respectively, while neutrinos from the pep reaction are observed with the significance exceeding 5 standard deviations for the first time. Improvements in analysis techniques made it possible to perform a simultaneous spectral fit including all three solar neutrino spectral components. In addition, a limit on the CNO neutrino flux has been obtained and a possibility of solving the solar metallicity issue is studied.
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A. Vishneva
JINR Dubna
Russia
 

Poster LNGS_Seminar2017_Vishneva.pdf