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

0492051 - ÚJF 2019 RIV GB eng C - Konferenční příspěvek (zahraniční konf.)
Draayer, J. P. - Launey, K. D. - Dytrych, Tomáš - Dreyfuss, A. C. - Baker, R. B. - Miora, M. E.
No-core Symplectic Model: Exploiting Hidden Symmetry in Atomic Nuclei.
Journal of Physics Conference Series. Vol. 863. Bristol: IOP, 2017, č. článku 012008. ISSN 1742-6588.
[11th International Conference on Clustering Aspects of Nuclear Structure and Dynamics. Napoli (IT), 23.05.2016-27.05.2016]
Grant CEP: GA ČR GA16-16772S
Institucionální podpora: RVO:61389005
Klíčová slova: shell model * collective motion * C-12
Obor OECD: Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

We report on recent developments within the framework of the no-core symplectic shell model (NCSpM) that complements the no-core shell model (Navratil, 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 for Li-6, C-12, O-16, and Ne-20 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.
Trvalý link: http://hdl.handle.net/11104/0285627