Signatures of chirality in the core-particle-hole systems

TL;DR

This paper investigates chirality signatures in odd-odd nuclei modeled as core-particle-hole systems, revealing that alpha-symmetry of the core and symmetric particle-hole configurations are key for chirality manifestations.

Contribution

It introduces a model combining the Bohr Hamiltonian with specific particle-hole configurations to analyze chirality signatures in odd-odd nuclei.

Findings

Chirality signatures are observed in the spectra.

Alpha-symmetry of the core is a sufficient condition for chirality.

Symmetric particle-hole configurations are crucial for chirality signatures.

Abstract

An odd-odd nucleus is treated as the core-particle-hole system. The core is described by the Bohr Hamiltonian. Different collective potentials of the core are investigated. The odd particle and hole are assumed to be in the symmetric [proton h11/2]x[neutron hole h11/2] configuration. Signatures of chirality in the odd-odd nucleus spectra are observed. The sufficient condition for the appearance of signatures of chirality in the core-particle-hole system is the alpha-symmetry of the core provided the particle-hole configuration of the odd valence particles is symmetric.