A minimal Beta Beam with high-Q ions to address CP violation in the leptonic sector

In this paper we consider a Beta Beam setup that tries to leverage at most existing European facilities: i.e. a setup that takes advantage of facilities at CERN to boost high-Q ions (8Li and8B) aiming at a far detector located at L = 732 km in the Gran Sasso Underground Laboratory. The average neutrino energy for8Li and8B ions boosted at γ ~ 100 is in the range Eν e [1,2] GeV, high enough to use a large iron detector of the MINOS type at the far site. We perform, then, a study of the neutrino and antineutrino fluxes needed to measure a CP-violating phase δ in a significant part of the parameter space. In particular, for θ13 > 3°, if an antineutrino flux of 3 x 1019 useful8Li decays per year is achievable, we find that δ can be measured in 60% of the parameter space with 3 x 1018 useful8B decays per year.