Shell Model Studies of Competing Mechanisms to the Neutrinoless Double-Beta Decay in ¹²⁴Sn, ¹³⁰Te, and ¹³⁶Xe

Figure 1

The calculated lifetimes and their uncertainties (the hatched bars) form the interference of the unknown CP phases. From left to right, the three vertical bars for each nucleus correspond to the mass mechanism, mechanism, and mechanism, respectively.