2024/05/07 by Alejandro Restrepo, Restrepo, Alejandro, J. P. Valencia +1
Engineering · Physics and Astronomy · #FOS: Physical sciences #Nuclear Theory (nucl-th) #Nuclear physics research studies #Particle accelerators and beam dynamics #Superconducting Materials and Applications
paper · pdf · doi:10.48550/arxiv.2405.04679
openalex publication_date 2024/05/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Rotational bands of positive and negative parity are frequently found experimentally in heavy deformed even-even nuclei along with their corresponding E2 intra-band and E1 inter-band transitions. In SU(3) symmetry-based models, calculating the B(E2) strengths is relatively straightforward due to the relation between the E2 operator and the quadrupole generator of the algebra. However, calculating the B(E1) strengths is a more difficult task, requiring computations involving the shell-model expansion of the dipole operator and multi-shell matrix elements. In this work the E1 operator is expanded in SU(3) second quantization and applied to calculate the inter-band B(E1) strengths of the isotope 224Th using the semi-microscopic algebraic quartet model (SAQM) based on the recently proposed proxy-SU(3) scheme.