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SUMMARY:First Cherenkov directional detection of sub-MeV solar neutrinos i
 n Borexino
DTSTART;VALUE=DATE-TIME:20210902T154500Z
DTEND;VALUE=DATE-TIME:20210902T160000Z
DTSTAMP;VALUE=DATE-TIME:20260514T184728Z
UID:indico-contribution-15727@indico.ific.uv.es
DESCRIPTION:Speakers: Johann Martyn (Borexino\, Johannes Gutenberg-Univers
 ität Mainz)\nBorexino is a 280t liquid scintillator detector at the Labor
 atori Nazionali del Gran Sasso (LNGS)\, Italy. Its main goal is the precis
 ion spectroscopy of solar neutrinos down to energies of ~190 keV and for t
 his task it features a high radio-purity and a high light yield of ~10\,00
 0 scintillation photons per 1 MeV deposited energy. The solar neutrinos ar
 e measured by their elastic scattering off electrons which induce isotropi
 cally emitted scintillation photons that are detected by PMTs.\nIn this ta
 lk we present the first measurement of solar  $^{7}$Be neutrinos using the
 ir associated Cherenkov photons in a high light yield scintillation detect
 or. In Borexino electrons with E>160 keV produce Cherenkov photons but the
  ratio of Cherenkov photons from the neutrino scattered electrons is \n\nh
 ttps://indico.ific.uv.es/event/6178/contributions/15727/
LOCATION:
URL:https://indico.ific.uv.es/event/6178/contributions/15727/
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