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Global neutrino data and recent reactor fluxes: the status of three-flavour oscillation parameters

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Global neutrino data and recent reactor fluxes: the status of three-flavour oscillation parameters

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Schwetz, Thomas; Tórtola Baixauli, María Amparo; Furtado Valle, José Wagner

Aquest document és un/a article, creat/da en: 2011

We present the results of a global neutrino oscillation data analysis within the three-flavour framework. We include latest results from the MINOS long-baseline experiment (including electron neutrino appearance as well as anti-neutrino data), updating all relevant solar (SK II+III), atmospheric (SK I+II+III) and reactor (KamLAND) data. Furthermore, we include a recent re-calculation of the anti-neutrino fluxes emitted from nuclear reactors. These results have important consequences for the analysis of reactor experiments and in particular for the status of the mixing angle θ13. In our recommended default analysis we find from the global fit that the hint for non-zero θ13 remains weak, at 1.8σ for both neutrino mass hierarchy schemes. However, we discuss in detail the dependence of these results on assumptions concerning the reactor neutrino analysis.

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