Systematic study of high-K isomers in the midshell Gd and Dy nuclei

TL;DR

This paper provides a theoretical analysis of high-K isomers in neutron-rich Gd and Dy nuclei, predicting new isomers and detailing their structures using advanced nuclear models.

Contribution

It introduces new predictions of high-K isomers in neutron-rich Gd and Dy nuclei using self-consistent theoretical methods, guiding future experimental research.

Findings

Predicted additional high-K isomers in Gd and Dy nuclei.

Detailed band structures and electromagnetic transition probabilities.

Validated theoretical framework for studying neutron-rich rare-earth nuclei.

Abstract

High-K isomers are well known in the rare-earth region and provide unique access to the high spin structures of the nuclei. With the current interest in the study of neutron-rich rare-earth nuclei at Radioactive Ion Beam (RIB) facilities, we present here theoretical results of the band structures of neutron-rich Gd and Dy nuclei, including the high K-isomers. Apart from the already known K-isomers, we predict some more K-isomers and these are suggested for future studies at RIB facilities. Self-consistent Deformed Hartree-Fock and Angular Momentum Projection theories are used to get the intrinsic structures, band-spectra and electromagnetic transitions probabilities of the ground band as well as bands based on isomers.