No-core Symplectic Model: Exploiting Hidden Symmetry in Atomic Nuclei

11th International Conference on Clustering Aspects of Nuclear Structure and Dynamics

Draayer, J.P.^1 ; Launey, K.D.^1 ; Dytrych, T.^1,2 ; Dreyfuss, A.C.^1 ; Baker, R.B.^1 ; Miora, M.E.^3

Dept. of Physics and Astronomy, Louisiana State University, Baton Rouge

LA

70803, United States^1

Nuclear Physics Institute, e

250 68, Czech Republic^2

Rollins College, Winter Park

FL

32789, United States^3

关键词: Atomic nuclei;    Core-shell model;    Hidden symmetry;    High-performance computing applications;    Low-lying state;    Shell models;    Symplectic;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/863/1/012008/pdf
DOI  :  10.1088/1742-6596/863/1/012008

来源: IOP

【 摘 要 】

We report on recent developments within the framework of the no-core symplectic shell model (NCSpM) that complements the no-core shell model (Navrátil, Vary, and Barrett) by exploiting the algebraic features of the symplectic shell model (Rowe and Rosensteel) while also allowing for high-performance computing applications, but in highly truncated, physically relevant subspaces of the complete space. The leading symplectic symmetry typically accounts for 70% to 90% of the structure of the low-lying states, a result that is only moderately dependent on the details of the selected inter-nucleon interaction. Examples for6Li,12C,16O, and20Ne are shown to illustrate the efficacy the NCSpM, and as well the strong overlap with cluster-like and pairing configurations that dominate the dynamics of low-lying states in these nuclei.