Global neutrino data and recent reactor fluxes: the status of three-flavour oscillation parameters

By T. Schwetz, M. Tórtola, J. Valle. 2011

208 citations recorded by the source corpus.

We present the results of a global neutrino oscillation data analysis within the three-flavour framework. We include the latest results from the MINOS long-baseline experiment (including electron neutrino appearance and anti-neutrino data), updating all relevant solar (Super-Kamiokande (SK) II+III), atmospheric (SK I+II+III) and reactor (KamLAND) data. Furthermore, we include a recent re-calculation of the anti-neutrino fluxes emitted from nuclear reactors. These results have important consequences for the analysis of reactor experiments and in particular for the status of the mixing angle θ13. In our recommended default analysis, we find from the global fit that the hint for nonzero θ13 remains weak, at 1.8σ for both neutrino mass hierarchy schemes. However, we discuss in detail the dependence of these results on assumptions regarding the reactor neutrino analysis.

Subfields: Nuclear and High Energy Physics, Radiation

View Paper: https://www.semanticscholar.org/paper/fac20a5b20663bdb417c226707ec0d2f71b4b029

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Nuclear and High Energy Physics

1. M. Tórtola
2. M. Maltoni
3. M. Gonzalez-Garcia
4. T. Schwetz
5. A. Marrone
6. E. Lisi
7. A. Palazzo
8. Y. Farzan

In Radiation

1. M. Tórtola
2. T. Schwetz
3. J. Valle
4. M. Maltoni
5. M. Gonzalez-Garcia
6. G. Fogli
7. Jordi Salvado
8. A. Marrone

Citations in the corpus

• Finite flavour groups of fermions (2011, background): “There is a striking difference between the CKM matrix and the lepton mixing matrix; while the CKM matrix is close to the unit matrix [3], the lepton mixing matrix has two large mixing angles—see [4] for recent fits—and is, therefore, very far from it.”
• Updated fit to three neutrino mixing: status of leptonic CP violation (2014, background): “[48, 49] and study the dependence of the determined value of the parameters on the assumptions about the reactor fluxes.”
• Evidence of $\theta_{13}$>0 from global neutrino data analysis (2011, background): “We also note that fluxes even lower than the “old” ones have been investigated as a possible phenomenological explanation of very short baseline reactor data [19, 21].”
• Global fit to three neutrino mixing: critical look at present precision (2012, background): “As seen in the left upper panel, when the new fluxes are taken at face value and RSBL reactor experiments are not included in the fit, even Chooz and Palo Verde would prefer θ13 > 0 but as soon as RSBL reactor experiments are included in the fit, the preference essentially disappears [47] independen”
• 2020 global reassessment of the neutrino oscillation picture (2020, background): “[5] T.”
• Determination of matter potential from global analysis of neutrino oscillation data (2013, unknown): “[84], i.”
• Sterile neutrino oscillations: the global picture (2013, unknown): “[79, 80].”