Analysis of the Intermediate-State Contributions to Neutrinoless Double β⁻ Decays

Figure 2

Cumulative values of the computed l-NMEs corresponding to the decay transitions for the nuclear systems and 136. The horizontal axis gives the excitation energies of the intermediate states contributing to the transition.

(a) ⁷⁶Ge

(b) ¹¹⁰Pd

(c) ¹²⁴Sn

(d) ¹³⁶Xe