A Very Intense Neutrino Super Beam Experiment for Leptonic CP Violation Discovery based on the European Spallation Source Linac
by
Marcos Dracos(,IPHC-IN2P3/CNRS Strasbourg University, France)
→
Europe/Stockholm
FA31
FA31
Description
Very intense neutrino beams and large neutrino detectors
will be needed in order to enable the discovery of CP violation in
the leptonic sector. We propose to use the proton linac of the
European Spallation Source currently under pre-construction phase
in Lund, Sweden to deliver, in parallel with the spallation
neutron production, a very intense, cost effective and high
performance neutrino beam. The baseline program for the European
Spallation Source linac is that it will be fully operational at 5 MW
average power by 2022, producing 2 GeV proton pulses at a rate of
14 Hz. Our proposal is to upgrade the linac to 10 MW average power
and 28 Hz, producing 14 pulses/s for neutron production and
14 pulses/s for neutrino production. A long baseline experiment
using this Super Beam and a megaton underground Water Cherenkov
detector located in existing mines 300–600~km from Lund will make
it possible to discover leptonic CP violation at 5 sigma significance
level in up to 60% of the leptonic Dirac CP-violating phase range.
This detector will also be used to measure the neutrino mass hierarchy,
the proton lifetime, detect cosmological neutrinos and neutrinos from
supernova explosions.
