Examining the nuclear structure and decay modes of ^128–208Sm Isotopes

In this paper, the nuclear structure and some prospective decay properties of the [Formula: see text]Sm[Formula: see text] elements are studied. This is accomplished by using an axially deformed oscillator basis and the Relativistic Mean Field model (RMF) with PK1 and NL-SH force parameters. The bulk characteristics are carefully examined, including the binding energy (B.E./A), nuclear radii,quadrupole deformation parameter([Formula: see text]), two neutron separation energy ([Formula: see text]), and differential change of two neutron separation energy ([Formula: see text]). Estimates are also made for the half-lives of the Sm isotopes for [Formula: see text]-decay, [Formula: see text]-decay and spontaneous fission (SF). Both our computed Q-values and empirically measurable Q-values are used to determine the [Formula: see text]-decay half-life periods using the MUDL and AKRE formulae. The results we anticipate could be useful for experiments and future perspective.