Evidence of θ13 > 0 from global neutrino data analysis

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 3v 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 v(mu) -> v(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 +/- 0.007 or 0.025 +/- 0.007, depending on reactor neutrino flux systematics. Updated ranges are also reported for the other 3v oscillation parameters (delta m(2); sin(2)theta(12)) and (Delta m(2); sin(2)theta(23)).