Ab initio calculations for Be-isotopes with JISP16

International Symposium on Exotic Nuclear Structure From Nucleons 2012

Maris, P.^1

Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, United States^1

关键词: Ab initio calculations;    Cluster configurations;    Core configuration;    Orbital motions;    Proton and neutron;    Quadrupole moments;    Transition rates;    Two-body interactions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/445/1/012035/pdf
DOI  :  10.1088/1742-6596/445/1/012035

来源: IOP

【 摘 要 】

We present recent results from no-core configuration interaction calculations for8Be,10Be, and12Be using the phenomenological two-body interaction JISP16. We calculate the binding energies of the ground state and the excitation energies of the low-lying positive-parity states. We discuss the contributions from the proton and neutron intrinsic spin and orbital motion to the total spin for several states, and use this to identify states which may be dominated by α-cluster configurations. In addition, we also calculate other observables such as dipole and quadrupole moments, as well as transition rates for select E2 transitions.