Work

Tetrahedral shape and Lambda impurity effect in 80Zr with a multidimensionally constrained relativistic Hartree-Bogoliubov model*

Year: 2024

Type: article

Abstract: This study investigated the tetrahedral structure in 80Zr and Lambda (Λ) impurity effect in Zr using the multidimensionally constrained relativistic Hartree-Bogoliubov model. The ground states of both 80Zr and Zr exhibit a tetrahedral configuration, accompanied by prolate and axial-octupole shaped isomers. Our calculations reveal that there are changes in the deformation parameters , , and upon Λ binding to 80Zr, except for when Λ occupies p-orbits. Compared to the two shape isomers, the Λ particle exhibits weaker binding energy in the tetrahedral state when occupying the or single-particle state. In contrast, the strongest binding occurs for the Λ particle in the state with tetrahedral shape. Besides, a large Λ separation energy may not necessarily correlate with a significant overlap between the density distributions of the Λ particle and nuclear core, particularly for tetrahedral hypernuclei.

Source: Chinese Physics C

DOI: 10.1088/1674-1137/ad8e40

Authors: Dan 丹 Yang 杨, Yu-Ting 宇婷 Rong 荣

Institution: Guangxi Normal University

Language: English

Topic: Nuclear physics research studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: Natural Science Foundation of Guangxi Zhuang Autonomous Region, National Natural Science Foundation of China

Awards: G3739624019, G4762607658, G5877773096, G8639436081, G9000120985