Symmetry-adapted ab initio no-core shell model calculations for 12C

10th International Conference on Clustering Aspects of Nuclear Structure and Dynamics

Launey, K.D.^1 ; Dreyfuss, A.C.^2 ; Dytrych, T.^1 ; Draayer, J.P.^1 ; Langr, D.^3 ; Maris, P.^4 ; Vary, J.P.^4 ; Bahri, C.^5

Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803, United States^1

Keene State College, Keene, NH 03435, United States^2

Department of Computer Systems, Czech Technical University in Prague, Prague, Czech Republic^3

Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, United States^4

Department of Physics, University of Notre Dame, Notre Dame, IN 46556, United States^5

关键词: Ab initio;    Cluster structure;    Core-shell model;    Large models;    Light nuclei;    Model spaces;    Nuclear structure;    Nucleon-nucleon interaction;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/436/1/012023/pdf
DOI  :  10.1088/1742-6596/436/1/012023

来源: IOP

【 摘 要 】

Symmetry-adapted no-core shell-model calculations reveal dominant symmetry patterns in the structure of light nuclei, independent of whether the system Hamiltonian is phenomenological in nature or derived from realistic interactions. We show results of large-scale nuclear structure computations based on the ab initio symmetry-adapted no-core shell model that use only a fraction of the model space. In addition, the symmetry patterns unveiled in these results are employed to explore ultra-large model spaces for12C. The outcome suggests a possible path forward for realizing collective theories that target correlated highly-deformed and alpha-cluster structures in terms of microscopic degrees of freedom that build forward from the nucleon-nucleon interaction itself.