v1.3: Threeneutrino fit based on data available in June 2014
Menu
 Summary of data included
 Parameter ranges
 Leptonic mixing matrix
 Onedimensional χ^{2} projections
 Twodimensional allowed regions
 Contributions to the determination of θ_{13}
 Role of atmospheric neutrinos
 Correlation between δ_{CP} and other parameters
 CP violation: Jarlskog invariant and unitarity triangles
 Reactor fluxes
If you are using these results please refer to JHEP 12 (2012) 123 [arXiv:1209.3023] as well as NuFIT 1.3 (2014), www.nufit.org.

Threeflavour oscillation parameters from our fit to global data as of June 2014. For "Free Fluxes + RSBL" reactor fluxes have been left free in the fit and short baseline reactor data (RSBL) with L shorter than ~100 m are included; for "Huber Fluxes, no RSBL" the flux prediction from arXiv:1106.0687 are adopted and RSBL data are not used in the fit. Note that 1σ and 3σ ranges are always given with respect to the global minimum. This leads to reduced intervals for local minima (enclosed in brackets), such as for Δm^{2}_{31} (NO) and for θ_{23} < 45°. 

3σ CL ranges of the magnitude of the elements of the threeflavour leptonic mixing matrix under the assumption of the matrix U being unitary. The ranges in the different entries of the matrix are correlated due to the fact that, in general, the result of a given experiment restricts a combination of several entries of the matrix, as well as to the constraints imposed by unitarity. As a consequence choosing a specific value for one element further restricts the range of the others. 
Onedimensional χ^{2} projections
pdf jpg 
Global 3ν oscillation analysis. The red (blue) curves are for Normal (Inverted) Ordering. Results for different assumptions concerning the analysis of data from reactor experiments are shown: for solid curves the normalization of reactor fluxes is left free and data from shortbaseline (less than 100 m) reactor experiments are included. For dashed curves shortbaseline data are not included but reactor fluxes as predicted in arXiv:1106.0687 are assumed. Note that as atmospheric masssquared splitting we use Δm^{2}_{31} for NO and Δm^{2}_{32} for IO. 
Twodimensional allowed regions
pdf jpg 
Global 3ν oscillation analysis. Each panel shows the twodimensional projection of the allowed sixdimensional region after marginalization with respect to the undisplayed parameters. The different contours correspond to the twodimensional allowed regions at 1σ, 90%, 2σ, 99%, 3σ CL (2 dof). Results for different assumptions concerning the analysis of data from reactor experiments are shown: full regions correspond to an analysis with the normalization of reactor fluxes left free and data from shortbaseline (less than 100 m) reactor experiments are included. For void regions shortbaseline reactor data are not included but reactor fluxes as predicted in arXiv:1106.0687 are assumed. Note that as atmospheric masssquared splitting we use Δm^{2}_{31} for NO and Δm^{2}_{32} for IO. 
Contributions to the determination of θ_{13}
pdf jpg 
Dependence of Δχ^{2} on θ_{13} for the different data samples and assumptions quoted in each panel. In the right panel we show the corresponding 1σ ranges. 
pdf jpg 
Δχ^{2} as a function θ_{23} and δ_{CP} for three different analysis assumptions on the atmospheric data included as labeled in the figure. Upper (lower) panels correspond to Normal (Inverted) ordering. 
Correlation between δ_{CP} and other parameters
pdf jpg 
Global 3ν oscillation analysis. Each panel shows the twodimensional projection of the allowed sixdimensional region after marginalization with respect to the undisplayed parameters. The different contours correspond to the twodimensional allowed regions at 1σ, 90%, 2σ, 99%, 3σ CL (2 dof). Results for different assumptions concerning the analysis of data from reactor experiments are shown: full regions correspond to an analysis with the normalization of reactor fluxes left free and data from shortbaseline (less than 100 m) reactor experiments are included. For void regions shortbaseline reactor data are not included but reactor fluxes as predicted in arXiv:1106.0687 are assumed. Upper (lower) panels are for NO (IO). 
CPviolation: Jarlskog invariant and unitarity triangles
pdf jpg 
Upper panels: dependence of Δχ^{2} on the Jarlskog invariant. The red (blue) curves are for NO (IO). Results for different assumptions concerning the analysis of data from reactor experiments are shown: for solid curves the normalization of reactor fluxes is left free and data from shortbaseline (less than 100 m) reactor experiments are included. For dashed curves shortbaseline data are not included but reactor fluxes as predicted in arXiv:1106.0687 are assumed. Lower panels: the six leptonic unitarity triangles. After scaling and rotating each triangle so that two of its vertices always coincide with (0,0) and (1,0), we plot the 1σ, 90%, 2σ, 99%, 3σ CL (2 dof) allowed regions of the third vertex. Note that in the construction of the triangles the unitarity of the U matrix is always explicitly imposed. 
pdf jpg 
Allowed regions at 1σ, 90%, 2σ, 99%, 3σ CL (2 dof) in in the plane of θ_{13} and the flux normalization f_{flux} (relative to the one predicted in arXiv:1106.0687) for the analysis of all reactor experiments CHOOZ, Palo Verde, DoubleCHOOZ, DayaBay and RENO together with the reactor shortbaseline experiments. In this figure we fix Δm^{2}_{31} to its best fit value. 