Here we present our most updated global fit of neutrino oscillations including the recent results which have appeared since the Neutrino-2012 conference. These include the measurements of reactor anti-neutrino disappearance reported by Daya Bay and RENO, together  with latest T2K and MINOS data including both disappearance and appearance channels.

We also include the revised results from the third solar phase of Super-Kamiokande, SK-III, as well as new solar results from the fourth phase of Super-Kamiokande, SK-IV.

We find that the preferred global determination of the atmospheric angle θ₂₃ is consistent with maximal mixing. We also determine the impact of the new data upon all the other neutrino oscillation parameters with emphasis on the increasing sensitivity to the CP phase, thanks to the interplay between accelerator and reactor data.

The most updated version of our analysis, including the new reactor data presented at the Neutrino-2014 conference is available on the arxiv server: arXiv:1405.7540. It has been published in Physical Review D.

Global status of neutrino oscillation parameters:

Neutrino oscillation parameters summary. For Δm²₃₁, sin²θ₂₃, sin²θ₁₃, and δ the upper (lower) row corresponds to normal (inverted) neutrino mass hierarchy.

χ² results:

Δχ² profiles as a function of all the neutrino oscillation parameters sin²θ₁₂, sin²θ₂₃, sin²θ₁₃, Δm²₂₁, Δm²₃₁ and the CP phase δ. For the central and right panels the solid lines correspond to the case of normal mass hierarchy while the dashed ones correspond to inverted mass hierarchy.

We'll summarize here the results of our global fit of neutrino oscillation parameters. Please see Phys. Rev. D 86, 073012 (2012) (arXiv:1205.4018) for more details. If you intend to use these results in a publication please consider citing the previously mentioned article.

The latest fits include the recent measurements of reactor antineutrino disappearance reported by the Double Chooz, Daya Bay and RENO experiments, together with latest MINOS and T2K appearance and disappearance results, as presented at the Neutrino-2012 conference. Moreover, the most recent solar and atmospheric neutrino data are also included in our analysis. We find that the preferred global fit value of the reactor angle is quite large (0.25) for normal and inverted neutrino mass ordering, with the null value being now now excluded at more than 10σ. This measurement marks a landmark for neutrino physics.

Global status of neutrino oscillation parameters:

Neutrino oscillation parameters summary. For ∆m^2_31,sin^2θ_23,sin^2θ_13, and δ. The upper (lower) row corresponds to normal (inverted) neutrino mass hierarchy. (a) This is a local minimum in the first octant of θ23 with ∆χ^2= 0.02 with respect to the global minimum.

χ² results:

∆χ^2 profiles as a function of all the neutrino oscillation parameters sin^2θ_12, sin^2θ_23, sin2θ_13,∆m^2_21 , ∆m^2_31 and δ. For the central and right panels the solid lines correspond to the case of normal mass hierarchy while the dashed lines correspond to the results for the inverted mass hierarchy

The impact of the new experimental results on the value of the reactor angle:

Upper panels: contour regions with ∆χ^2= 1, 4, 9 in the sin^2θ_23-sin^2θ_13 plane from the analysis of long–baseline (MINOS and T2K) + solar + KamLAND data (left panel), long-baseline + solar + KamLAND + new Double Chooz, Daya Bay and RENO reactor data (middle panel) and the global combination (right panel) for normal hierarchy. Lower panels, same but for (inverted) neutrino mass hierarchy