Emergence of Simple Patterns in Complex Atomic Nuclei from First Principles

38th Symposium on Nuclear Physics

Dytrych, T.^1,2 ; Launey, K.D.^1 ; Draayer, J.P.^1 ; Maris, P.^3 ; Vary, J.P.^3 ; Langr, D.^4,5 ; Oberhuber, T.^6

Department of Physics and Astronomy, Louisiana State University, Baton Rouge

LA

70803, United States^1

Nuclear Physics Institute, ez

250 68, Czech Republic^2

Department of Physics and Astronomy, Iowa State University, Ames

IA

50011, United States^3

Faculty of Information Technology, Czech Technical University, Prague

16000, Czech Republic^4

Aerospace Research and Test Establishment, Prague

19905, Czech Republic^5

Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University, Prague

11519, Czech Republic^6

关键词: Atomic nuclei;    Charge form factor;    Collective modes;    Core-shell model;    Elastic electron scattering;    First principles;    Low-lying state;    Spectroscopic property;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/639/1/012008/pdf
DOI  :  10.1088/1742-6596/639/1/012008

来源: IOP

【 摘 要 】

We study the structure of low-lying states in6Li,6He,8Be,8B,12C, and16O, using ab initio symmetry-adapted no-core shell model. The results of our study demonstrate that collective modes in light nuclei emerge from first principles. We investigate the impact of the symmetry-adapted model space on spectroscopic properties and, in the case of the ground state of6Li, on elastic electron scattering charge form factor. The results confirm that only a small symmetry-adapted subspace of the complete model space is needed to accurately reproduce complete-space observables and the form factor momentum dependence.