Global fit to three neutrino mixing: critical look at present precision
M. C. Gonzalez-Garcia, Michele Maltoni, Jordi Salvado, Thomas Schwetz
TL;DR
This paper provides a comprehensive global analysis of three-neutrino oscillation data, refining measurements of mixing angles, mass ordering, and CP violation, and examining the impact of different data sets and assumptions.
Contribution
It offers an updated, detailed global fit to neutrino oscillation data, including new insights into theta_13, theta_23 octant, mass hierarchy, and CP phase, considering various data dependencies.
Findings
Refined value of theta_13 from global data
Analysis of theta_23 deviation from maximal mixing
Sensitivity to neutrino mass ordering and CP violation
Abstract
We present an up-to-date global analysis of solar, atmospheric, reactor, and accelerator neutrino data in the framework of three-neutrino oscillations. We provide results on the determination of theta_13 from global data and discuss the dependence on the choice of reactor fluxes. We study in detail the statistical significance of a possible deviation of theta_23 from maximal mixing, the determination of its octant, the ordering of the mass states, and the sensitivity to the CP violating phase, and discuss the role of various complementary data sets in those respects.
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