Nuclear chiral rotation within Relativistic Configuration-interaction Density functional theory

TL;DR

This paper extends the Relativistic Configuration-interaction Density functional theory to study nuclear chiral rotation, successfully reproducing energy spectra and transition probabilities, and revealing microscopic insights into chiral doublets.

Contribution

It introduces a novel microscopic and quantal approach to nuclear chirality using ReCD theory, combining configuration mixing and relativistic density functional methods.

Findings

Reproduces energy spectra and transition probabilities without free parameters.

Highlights the roles of configuration mixing and four quasiparticle states.

Illustrates the transition from chiral vibration to static chirality.

Abstract

The Relativistic Configuration-interaction Density functional (ReCD) theory that combines the advantages of large-scale configuration-interaction shell model and relativistic density functional theory is extended to study nuclear chiral rotation. The energy spectra and transition probabilities of the chiral doublet bands are reproduced satisfactorily without any free parameters. By analyzing the probability amplitudes of the wavefunctions, the significant roles of configuration mixing and four quasiparticle states to the chiral doublets are revealed. The evolution from chiral vibration to static chirality are clearly illustrated by the K plot and azimuthal plot. The present investigation provides both microscopic and quantal descriptions for nuclear chirality for the first time and demonstrates the robustness of chiral geometry against the configuration mixing as well as the four quasiparticle states.