Candidate MKiD nucleus 106Rh in triaxial relativistic mean-field approach with time-odd fields

TL;DR

This paper extends the relativistic mean-field approach by including time-odd fields to study the 106Rh nucleus, revealing small energy contributions and confirming the persistence of multiple chiral doublets.

Contribution

It introduces a new extension of the triaxial relativistic mean-field model with time-odd fields for studying chiral nuclei.

Findings

Time-odd fields contribute 0.1-0.3 MeV to total energy.

Time-odd fields slightly modify gamma deformation parameters.

Multiple chiral doublets in 106Rh still exist after extension.

Abstract

The configuration-fixed constrained triaxial relativistic mean-field approach is extended by including time-odd fields and applied to study the candidate multiple chiral doublets (MKiD) nucleus 106Rh. The energy contribution from time-odd fields and microscopical evaluation of center-of-mass correction as well as the modification of triaxial deformation parameters beta, gamma due to the time-odd fields are investigated. The contributions of the time-odd fields to the total energy are 0.1-0.3 MeV and they modify slightly the gamma values. However, the previously predicted multiple chiral doublets still exist.