Work

Intermediate particle-core coupling in reflection asymmetric odd mass nuclei

Year: 2026

Type: article

Abstract: A coupling scheme between a collective core, with quadrupole and octupole deformation, and a single-particle spin is proposed to describe the complex distribution of the negative and positive parity states in odd mass nuclei. The model is based on an axially symmetric quadrupole-octupole geometric Hamiltonian with an adjustable particle-core coupling, offering a wide range of spectroscopic structures. A specific instance of the model, involving a moderate coupling strength, is identified in $$^{151}$$ 151 Ce, $$^{153}$$ 153 Nd, $$^{223}$$ 223 Ra and $$^{225}$$ 225 Th nuclei, respectively discussed in terms of energy levels and relevant electric transitions.

Source: The European Physical Journal A

DOI: 10.1140/epja/s10050-026-01801-y

Author: R. Budaca

Institutions: Academia Oamenilor de Știință din România, Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering

Language: English

Topic: Nuclear physics research studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,990

Funders: Ministerul Cercetării, Inovării şi Digitalizării, Unitatea Executiva pentru Finantarea Invatamantului Superior, a Cercetarii, Dezvoltarii si Inovarii