The structural evolution in transitional nuclei of mass 80 $\leq$ A $\leq$ 132

TL;DR

This theoretical study investigates the structural evolution of transitional nuclei with mass numbers 80 to 132 using relativistic mean field formalism, revealing non-monotonic behaviors linked to shell closures, shape changes, and clustering phenomena.

Contribution

It provides a detailed analysis of nuclear properties and internal configurations of even-even nuclei in the mass range 80-132, highlighting structural phenomena with relativistic mean field models.

Findings

Identification of shell/sub-shell closures affecting nuclear behavior

Observation of shape transitions and clustering phenomena

Insights into internal configurations explaining structural anomalies

Abstract

In this theoretical study, we report an investigation on the behavior of two neutron separation energy, differential variation of the separation energy and the abnormality in nuclear charge radius along the isotopic and isotonic chains of transition nuclei. We have used relativistic mean field formalism with NL3 and NL3$^*$ forces for this present analysis. The study refers to {\it even-even} nuclei such as Zr, Mo, Ru and Pd with $N$ = 40$-$ 86, where a rich collective phenomena such as proton radioactivity, cluster or nucleus radioactivity, exotic shapes, {\it Island of Inversion} and etc. are observed. These non-monotonic aspects over the isotopic chain are mainly correlated with the structural properties like shell/sub-shell closures, shape transition, clustering and magicity etc. In addition to these, we have shown the internal configuration of these nuclei to get a further insight into the reason for these discrepancies.