The KM3NeT Neutrino Telescope and the potential of a neutrino beam from Russia to the Mediterranean Sea
Résumé
KM3NeT is a new generation neutrino telescope currently under construction at two sites in the Mediterranean Sea. At the Capo Passero site, 100 km off-shore Sicily, Italy, a volume of more than one cubic kilometre of water will be instrumented with optical sensors. This instrument, called ARCA, is optimized for observing cosmic sources of TeV and PeV neutrinos. The other site, 40 km off-shore Toulon, France, will host a much denser array of optical sensors, ORCA. With an energy threshold of a few GeV, ORCA will be capable to determine the neutrino mass hierarchy through precision measurements of atmospheric neutrino oscillations. In this contribution, we review the scientific goals of KM3NeT and the status of its construction. We also discuss the scientific potential of a neutrino beam from Protvino, Russia to ORCA. We show that such an experiment would allow for a measurement of the CP-violating phase in the neutrino mixing matrix. To achieve a sensitivity competitive with that of the other planned long-baseline neutrino experiments such as DUNE and T2HK, an upgrade of the Protvino accelerator complex will be necessary.
Mots clés
talk: Moscow 2017/08/24
neutrino: detector
neutrino: potential
neutrino: beam
neutrino: cosmic radiation
detector: optical
neutrino: oscillation
neutrino: atmosphere
neutrino: mixing
neutrino: mass: hierarchy
energy: threshold
CP: violation
KM3NeT
site
accelerator
sensitivity
upgrade
water
proposed experiment