Abstract: Borexino at the Gran Sasso Laboratory is an unsegmented 300 tons liquid
scintillator detector designed and built to search mainly for low energy (<1MeV)
solar neutrinos.
Borexino has already operated for ten years and achieved a number of
remarkable results in MeV and sub-MeV (anti)neutrino searches, such as a 5%
measurement of the 7Be solar neutrinos and observation of geo-neutrinos.
In 2014, Borexino has detected the so-called proton-proton (pp) solar neutrinos.
The production of these neutrinos is very slow and drives the evolution of the Sun
in a timescale of billions of years. Being the average energy of pp neutrino equal to 267 keV,
detection of these neutrinos in realtime is extremely difficult. The high level of radio-purity
reached in Borexino has allowed to measure pp neutrinos at 10% level.
In 2015, Borexino has measured geo-neutrinos with a 5sigma significance.
In the talk the Borexino detector and its history since the early proposal
in 1988 will be reported. A review of the main achievements in Borexino,
including solar neutrinos, geo-neutrinos and rare events searches, will be
presented. Next future perspectives with Borexino will be reviewed.
