Explore nuclear multiple chirality in $A\sim60$ mass region within covariant density functional theory

TL;DR

This paper investigates nuclear multiple chirality in the A~60 mass region using covariant density functional theory, revealing configurations with triaxial shapes that suggest possible chirality phenomena.

Contribution

It applies covariant density functional theory to explore multiple chirality in A~60 nuclei, a novel application in this mass region.

Findings

Identification of high-j particle and hole configurations with triaxial deformation

Potential for multiple chirality phenomena in A~60 nuclei

Detailed potential-energy and triaxiality analysis

Abstract

The nuclear multiple chirality in $A\sim60$ mass region is explored by the adiabatic and configuration-fixed constrained covariant density functional theory for cobalt isotopes. The potential-energy curves and triaxiality parameters $\gamma$ as functions of the deformation parameter $\beta$ in $^{54,56,57,58,59,60}$Co are obtained. It is found that there are high-$j$ particle(s) and hole(s) configurations with prominent triaxially deformed shapes in these isotopes. This points towards that the existence of chirality or multiple chirality in $A\sim60$ mass region are highly anticipated.