Study of the Borexino spectrum at low energies: pp neutrino flux measurement and test of electric charge conservation.

Caprioli S. per la Collaborazione Borexino
  Mercoledì 28/09   16:30 - 19:00   Edificio Psicologia 2 - Aula 2E   III - Astrofisica
Borexino is a liquid scintillator detector located deep underground at the Laboratori Nazionali del Gran Sasso. The unmatched radiopurity of the scintillator and the well-understood detector response at low energies have lead to the first measurement of the pp neutrino flux (2014) and to a new limit on the stability of the electron for decay into a neutrino and a single monoenergetic photon. This new bound, $\tau \geq 6.6 \times 10^{28}$ yr at 90% CL, is two orders of magnitude better than the previous limit. In this talk I will briefly discuss these two important Borexino results.