https://en.wikipedia.org/wiki/Neutrino_mass_hierarchy
Neutrino mass hierarchy - Wikipedia
neutrino mass hierarchywikipedia
https://arxiv.org/abs/1710.05562
[1710.05562] A quantum information theoretic quantity sensitive to the neutrino mass-hierarchy
Abstract page for arXiv paper 1710.05562: A quantum information theoretic quantity sensitive to the neutrino mass-hierarchy
https://arxiv.org/abs/2107.10593
[2107.10593] KM3NeT/ORCA: status and perspectives for neutrino oscillation and mass hierarchy...
Abstract page for arXiv paper 2107.10593: KM3NeT/ORCA: status and perspectives for neutrino oscillation and mass hierarchy measurements