Abstract
We revisit our previous work [Capozzi et al., Phys. Rev. D 95, 096014 (2017)] where neutrino oscillation and nonoscillation data were analyzed in the standard framework with three neutrino families, in order to constrain their absolute masses and to probe their ordering (either normal, NO, or inverted, IO). We include updated oscillation results to discuss best fits and allowed ranges for the two squared mass differences and , the three mixing angles , , and , as well as constraints on the -violating phase , plus significant indications in favor of NO vs IO at the level of . We then consider nonoscillation data from beta decay, from neutrinoless double beta decay (if neutrinos are Majorana), and from various cosmological input variants (in the data or the model) leading to results dubbed as default, aggressive, and conservative. In the default option, we obtain from nonoscillation data an extra contribution in favor of NO, and an upper bound on the sum of neutrino masses at ; both results—dominated by cosmology—can be strengthened or weakened by using more aggressive or conservative options, respectively. Taking into account such variations, we find that the combination of all (oscillation and nonoscillation) neutrino data favors NO at the level of , and that is constrained at the level within . The upper edge of this allowed range corresponds to an effective -decay neutrino mass , at the sensitivity frontier of the KATRIN experiment.
- Received 20 March 2020
- Accepted 5 June 2020
DOI:https://doi.org/10.1103/PhysRevD.101.116013
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
Published by the American Physical Society