Relatore
Giorgio Maria Riccobene
(LNS)
Descrizione
The multimessenger astronomy era has begun: combined measurement of
gravitational waves, gammas and high-energy cosmic rays and neutrinos
provide unprecedented tools to understand the birth and evolution of
cosmic sources. Hundred kilometres South West off Capo Passero, Sicily
the KM3NeT Collaboration is building the ARCA neutrino detector, formed
by 230 vertical units equipped with 130 thousand of photomultiplier
tubes. With ARCA, high-energy neutrino sources can be identified thus
providing the answer to the question of the origin of cosmic rays. The
first two detection units of ARCA were deployed in 2015 and 2016 and
operated till April 2017, providing valuable information for the
validation of the detector technology, calibration methods and the water
column properties. In 2017 another milestone was reached with the
deployment of the first vertical unit of the low energy neutrino
detector KM3NeT/ORCA offshore Toulon, France. The KM3NeT Collaboration
is now producing detection units and refurbishing the seabed
infrastructures to complete the first phase of KM3NeT with 24 detection
units in ARCA and 7 in ORCA and subsequently start the extension towards
a block of 115 detection units at each site. The status of the ARCA
detector, data analysis and envisaged performances will be discussed.
Autore principale
Giorgio Maria Riccobene
(LNS)
