# Possible chiral doublets in $^{60}$Ni

## TL;DR

This paper investigates the potential existence of nuclear chirality in $^{60}$Ni's doublet bands using a fully quantal four-$j$ shells triaxial particle rotor model, successfully reproducing experimental data and suggesting chiral modes at higher spins.

## Contribution

It introduces a fully quantal four-$j$ shells triaxial particle rotor model to study chirality in $^{60}$Ni, providing new insights into chiral modes in light-mass nuclei.

## Key findings

- Chiral modes likely exist at spins $I extgreater=12\,\hbar$ in doublet bands M1 and M4.
- The model reproduces experimental energy spectra and transition ratios.
- Analyses suggest the presence of chirality at high angular momenta.

## Abstract

The open problem on whether or not the chirality exists in doublet bands M1 and M4 in light-mass even-even nucleus $^{60}$Ni is studied by adopting the recently developed fully quantal four-$j$ shells triaxial particle rotor model. The corresponding experimental energy spectra, energy differences between doublet bands, and the available $B(M1)/B(E2)$ values are successfully reproduced. The analyses on the basis of the angular momentum components, the azimuthal plots, and the $K$-plots suggest that the chiral modes exist at $I\geq 12\hbar$ in doublet bands M1 and M4.