Abstract
In neutron star mergers, neutron excess nuclei and the r-process are important factors governing the production of heavier nuclear systems. A single-particle model evaluation of sulfur nuclei suggests that the heaviest Z = 16 nucleus will have mass 68 with filling of the 3s1/2 neutron shell. A = 47 – 68 sulfur isotopes have limited experimental half-life data, but the model predicts beta decay half-lives in the range of 0.575 – 34.7 ms. Based on previous calculations for Z = 9 -15, 20, 26, and 30 systems and comparisons to the 47S, 48S, 50S, and 52S calculations, summarized in the Japanese Nuclear Data Compilation, the single-particle model results likely overestimate the half-lives of A = 47 – 68 neutron excess sulfur nuclei.
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