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

MPG-Autoren
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Schwetz-Mangold,  Thomas
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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1103.0734
(Preprint), 247KB

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Zitation

Schwetz-Mangold, T., Tórtola, M., & Valle, J. W. F. (2011). Global neutrino data and recent reactor fluxes: status of three-flavour oscillation parameters. New Journal of Physics, 13(6): 063004, pp. 1-15. doi:10.1088/1367-2630/13/6/063004.


Zitierlink: https://hdl.handle.net/11858/00-001M-0000-0012-123C-E
Zusammenfassung
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 1.8$\sigma$ for both neutrino mass hierarchy schemes. However, we discuss in detail the dependence of these results on assumptions concerning the reactor neutrino analysis.