Wobbling motion in octupole deformed nuclei. II. Effect of single-particle configuration

Yeruoxi Chen; H. L. Yu; Q. B. Chen; R. V. Jolos

doi:10.1103/jlfb-m2qd

Wobbling motion in octupole deformed nuclei. II. Effect of single-particle configuration

Yeruoxi Chen ¹, H. L. Yu^1,*, Q. B. Chen ^1,†, and R. V. Jolos ^2,‡

¹School of Physics, East China Normal University, Shanghai 200241, China
²Joint Institute for Nuclear Research, 141980 Dubna, Moscow Region, Russia

^*Present address: Shijiazhuang No. 42 Middle School, Shijiazhuang 050062, China.
^†Contact author: qbchen@phy.ecnu.edu.cn
^‡Contact author: jolos@theor.jinr.ru

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Phys. Rev. C 114, 014336 – Published 28 July, 2026

DOI: https://doi.org/10.1103/jlfb-m2qd

Abstract

Based on the octupole core-quasiparticle coupling model, the effect of different octupole-correlated configurations— $π (2 p_{3 / 2}, 1 g_{9 / 2}), π (2 d_{5 / 2}, 1 h_{11 / 2})$ , and $π (2 f_{7 / 2}, 1 i_{13 / 2})$ —on wobbling motion in octupole deformed odd- $A$ nuclei is systematically investigated. Spin coherent state plots are constructed to visualize the angular momentum geometry. The results demonstrate that wobbling motion can occur in both positive- and negative-parity bands built on these octupole-correlated orbitals. As the spin increases, a transition from transverse wobbling to longitudinal wobbling is revealed, with the critical spin increasing with the particle angular momentum. This shows the crucial role of high- $j$ particles in stabilizing the transverse wobbling mode.

Physical Review C

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Wobbling motion in octupole deformed nuclei. II. Effect of single-particle configuration

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