4-11 July 2012
Melbourne Convention and Exhibition Centre
Australia/Melbourne timezone
ICHEP2012 - 36th International Conference for High Energy Physics

Neutrino physics with Borexino

6 Jul 2012, 10:00
15m
Room 220 (Melbourne Convention and Exhibition Centre)

Room 220

Melbourne Convention and Exhibition Centre

Melbourne Australia

Speaker

Dr Livia Ludhova (INFN Milano (IT))

Description

Borexino is a large-volume liquid scintillator detector installed in the underground halls of the Laboratori Nazionali del Gran Sasso in Italy. After several years of construction, the Borexino phase I ended after about 3 years of data taking and a period of purification of the scintillator. All Borexino results within its solar neutrino program and their physical implications will be reviewed: the first real time measurement of the 7Be solar neutrino interaction rate, obtained with a precision below 5%, and the absence of its day-night asymmetry with 1.4% precision; the first direct evidence of the pep neutrino signal and the strongest experimental constraint of the CNO solar neutrino flux to date; the measurement of the solar 8B neutrino rate with 3 MeV energy threshold. Borexino has also made sensitive measurements of antineutrinos, both terrestrial (geoneutrinos) and astrophysical, setting the best limits on a hypothetical antineutrino flux from the Sun assuming undistorted 8B spectrum. Along with sensitive searches for exotic processes, Borexino is now preparing to make a precise time-of-flight measurement of neutrinos from the CNGS beam. If available at the time of the ICHEP2012 conference, new results concerning the neutrino speed and/or update of the geo-neutrino measurement could be presented.

Primary author

Dr Livia Ludhova (INFN Milano (IT))

Presentation materials