Study of the eightfold degeneracy with a standard β-beam and a super-beam facility

The study of the eightfold degeneracy at a neutrino complex that includes a standard β-beam and a super-beam facility is presented for the first time in this paper. The scenario where the neutrinos are sent toward a megaton water Čerenkov detector located at the Fréjus laboratory (baseline 130 km) is exploited. The performance in terms of sensitivity for measuring the continuous (θ13 and δ) and discrete (sign[Δm232] and sign[tan(2θ23)]) oscillation parameters for the β-beam and super-beam alone, and for their combination has been studied. A brief review of the present uncertainties on the neutrino and antineutrino cross-sections is also reported and their impact on the discovery potential discussed.