On the measurement of leptonic CP violation
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Burguet Castell, Jordi; Gavela, María Belén; Gómez Cadenas, Juan José; Hernández Gamazo, Pilar; Mena Requejo, Olga
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Aquest document és un/a article, creat/da en: 2001
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We show that the simultaneous determination of the leptonic CP-odd phase delta and the angle theta (13) from the subleading transitions nu (e) --> nu (mu) and <(<nu>)over bar>(e) --> <(<nu>)over bar>(mu) results generically, at fixed neutrino energy and baseline, in two degenerate solutions. In light of this, we refine a previous analysis of the sensitivity to leptonic CP violation at a neutrino factory, in the LMA-MSW scenario, by exploring the full range of delta and theta (13). Furthermore, we take into account the expected uncertainties on the solar and atmospheric oscillation parameters and in the average Earth matter density along the neutrino path. An intermediate baseline of O (3000) km is still the best option to tackle CP violation, although a combination of two baselines turns out to be very important in resolving degeneracies. |
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