The data of the article: Mechanisms of mirror energy difference for states exhibiting Thomas-Ehrman shift: Gamow shell model case studies of 18Ne/18O and 19Na/19O

We employ the Gamow shell model, which includes the inter-nucleon correlation and continuum coupling, to investigate the MED for sd-shell nuclei by taking 18Ne/18O and 19Na/19O as examples. Our GSM provides good descriptions for the excitation energies and MEDs for the 18Ne/18O and 19Na/19O.

Moreover, our calculations also reveal that the large MED of the mirror states is caused by the significant occupation of the weakly bound or unbound s1/2 waves, giving the radial density distribution of the state in the proton-rich nucleus more extended than that of mirror states in deeply-bound neutron-rich nuclei. Moreover, our GSM calculation shows that the contribution of Coulomb is different for the low-lying states in proton-rich nuclei, which significantly contributes to MEDs of mirror states, which is well-recognized.