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Constraints on Neutrino Mass Ordering and Degeneracy from Planck and Neutrino-less Double Beta Decay
We investigate constraints on neutrino mass ordering and degeneracy by considering the first cosmological result based on Planck measurements of the cosmic microwave background.It is shown that the result at 95% CL rejects a neutrino mass degeneracy larger than 85% (82.5%) for the normal (inverted) hierarchical case.We can also find …