SEZIONE DI MILANO
The Sun is powered by a chain of nuclear reactions (the so-called ''proton-proton cycle'’) which burn hydrogen and produce Helium. In these reactions also neutrinos are emitted. Unlike photons, which take approximately 100 thousand years to travel from the Sun's core to its surface, neutrinos cross the solar matter in few seconds and reach Earth in 8 minutes, thus providing a real-time picture of the Sun interior. In this talk I will summarize the main results of the Borexino experiment which has been devoted for over 7 years to the difficult hunt for elusive solar neutrinos. Thanks to the unprecedented radiopurity of the detector and its large mass Borexino has been able to study most of the components of the solar neutrino spectrum, including (very recently) the one coming from the primary reaction p + p  d + e+ + ν which is responsible for most of the solar luminosity. Tenuto dalla Dott.ssa Barbara Caccianiga

DATA: 27-04-2015