Probe of proton drip line nuclei near Z = 50 indicated by nuclear shell model

The properties of the proton drip line nuclei are of strong significance for the astrophysical rp-process. Spectroscopic properties of such nuclei are also key topics in nuclear physics, where some interesting features may exist. At present, the proton drip line around Z = 50 is not well understood since spectroscopic information on these nuclei is not easy to be obtained by experiments. In this work, we calculate the single-proton separation energy for nuclei in the proton drip line near Z = 50 based on the nuclear shell model. Furthermore, we also predict the J(pi), beta-decay half-lives, and beta-decay Q values in this region. The calculated results are in good agreement with experimental data. According to the single-proton separation energy, the proton drip line in this region can be predicted, and it is forecast that Pd-90(46), Ag-94(47), Cd-94(48), In-98(49), and Sn-98(50) are the proton drip line nuclei.

Automated summary

The properties of proton drip line nuclei have significant implications for the astrophysical rp-process and are key topics in nuclear physics. This study calculates the single-proton separation energy for nuclei near Z = 50 using the nuclear shell model and predicts other properties such as J(pi), beta-decay half-lives, and beta-decay Q values. The calculated results are in good agreement with experimental data.