Global neutrino data and recent reactor fluxes: status of three-flavour oscillation parameters
Abstract
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 $\theta_{13}$. In our recommended default analysis we find from the global fit that the hint for non-zero $\theta_{13}$ remains weak, at 2.2$\sigma$ or 2.3 $\sigma$ for normal or inverse hierarchy, respectively. However, we discuss in detail the dependence of these results on other alternative assumptions concerning the reactor neutrino analysis.
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