Evidence ofθ13>0from global neutrino data analysis

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Abstract
The neutrino mixing angle $\theta${}13 is at the focus of current neutrino research. From a global analysis of the available oscillation data in a 3$\nu${} framework, we previously reported [Phys. Rev. Lett. 101, 141801 (2008)] hints in favor of $\theta${}13>0 at the 90% C.L. Such hints are consistent with the recent indications of a $\nu${}$\mu${}$\rightarrow${}$\nu${}e appearance in the T2K and MINOS long-baseline accelerator experiments. Our global analysis of all the available data currently provides >3$\sigma${} evidence for nonzero $\theta${}13, with 1$\sigma${} ranges sin{}2$\theta${}13=0.021\ifmmode\pm\else\textpm\fi{}0.007 or 0.025\ifmmode\pm\else\textpm\fi{}0.007, depending on reactor neutrino flux systematics. Updated ranges are also reported for the other 3$\nu${} oscillation parameters ($\delta${}m2,sin{}2$\theta${}12) and ($\Delta${}m2,sin{}2$\theta${}23).