The decay behavior of nuclei belonging to the A = 49 isobaric chain has been examined through the evaluation of decay Q-values and corresponding half-lives. All possible decay channels, including α, β−,β+ decay and electron capture, have been considered for nuclei extending from the proton-rich 49Co to the stable 49Ti. The calculations indicate that α and β− decay modes are energetically disallowed, whereas weak decay processes dominate the transformation of these nuclei. A gradual reduction in decay energy is observed along the chain, accompanied by a steady increase in half-life as the nuclei evolve toward stability? . The decay sequence proceeds primarily via β+ emission for the lighter members, followed by a transition to electron capture near the stable region, ultimately terminating at 49Ti. The present results provide a consistent description of decay systematics in proton-rich isobars and offer useful input for both theoretical modeling and experimental investigations of short-lived exotic nuclei.
Sridhara et al. (Wed,) studied this question.