Year: 2025
Type: article
Abstract: Following a series of successful applications to the neighboring isotopic chains of the rare-earth region, a mean-field-derived IBM-1 Hamiltonian with an intrinsic triaxial deformation derived from fermionic proxy-SU(3) irreducible representations (irreps) is employed for the study of energies and B(E2) transition strengths in the low-lying quadrupole bands of the even–even 162–182Yb. Proxy-SU(3) next-highest-weight irreps are incorporated in the calculations for the first time, leading to a significantly improved agreement with experimental data, where available, compared to axially symmetric calculations, as well as to triaxial calculations considering only highest-weight irreps.
Source: Symmetry
DOI: 10.3390/sym17122135
Authors: Polytimos Vasileiou, Dennis Bonatsos, Theo J. Mertzimekis
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,896
OpenAlex ID: W7114802983