Nu(Mu) Disappearance At The Spl, T2k-I, No Nu A And The Neutrino Factory

We study the measurement of the atmospheric neutrino oscillation parameters, theta(23) and Delta m(23)(2), at the nu(mu) disappearance channel at three conventional beam facilities, the SPL, T2K-phase I and NO nu A. These two parameters have been shown to be of crucial importance in the measurement of two of the unknowns of the PMNS mixing matrix, theta(13) and the leptonic CP-violating phase delta. In our analysis, the effect of the two discrete ambiguities, sign(Delta m(23)(2)) and sign(tan2 theta(23)), is explicitly taken into account. We analyse also the nu(mu) disappearance channel at the neutrino factory, and combine it with the "golden" nu(e) -> nu(mu) and "silver" nu(e) -> nu(tau) appearance channels to study its impact on the measurement Of theta(13) and delta. Eventually, we present the sensitivity of the four facilities to different observables: theta(13), delta, maximal theta(23), the sign of the atmospheric mass difference, s(atm), and the theta(23)-octant, s(oct). (c) 2006 Elsevier B.V. All rights reserved.