For 136Xe, the predicted 0νββ half-life is (1.3-3.0)×10^31 y at ⟨mν⟩=1 meV, roughly ten times longer than the standard compilation, based on unifying the effective axial coupling of the 2ν and 0ν modes.
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Half-life of $^{136}$Xe for neutrinoless double-$\beta$ decay calculated with effective axial-vector current coupling unified for two-neurtino and neutrinoless double-$\beta$ decay modes
For 136Xe, the predicted 0νββ half-life is (1.3-3.0)×10^31 y at ⟨mν⟩=1 meV, roughly ten times longer than the standard compilation, based on unifying the effective axial coupling of the 2ν and 0ν modes.