Paper detail

Where we are on $θ_{13}$: addendum to "Global neutrino data and recent reactor fluxes: status of three-flavour oscillation parameters"

In this addendum to arXiv:1103.0734 we consider the recent results from long-baseline $ν_μ\toν_e$ searches at the T2K and MINOS experiments and investigate their implications for the mixing angle $θ_{13}$ and the leptonic Dirac CP phase $δ$. By combining the $2.5σ$ indication for a non-zero value of $θ_{13}$ coming from T2K data with global neutrino oscillation data we obtain a significance for $θ_{13} > 0$ of about $3σ$ with best fit points $\sin^2θ_{13} = 0.013(0.016)$ for normal (inverted) neutrino mass ordering. These results depend somewhat on assumptions concerning the analysis of reactor neutrino data.