Cluster Structures of the Ground and Excited States of 12Be Studied with Antisymmetrized Molecular Dynamics

Details Cluster Structures of the Ground and Excited States of 12Be Studied with Antisymmetrized Molecular Dynamics Cluster Structures of the Ground and Excited States of 12Be Studied with Antisymmetrized Molecular Dynamics

2003-01-21

arxiv.org/abs/nucl-th/0301059v2

Phys.Rev. C68 (2003) 014319

Physics

Nuclear Physics

Nuclear Theory

25 pages, 9 figures. Submitted to Phys.Rev.C

Scientific paper

10.1103/PhysRevC.68.014319

The structures of the ground and excited states of 12Be were studied with antisymmetrized molecular dynamics. The ground state was found to be a state with a developed 2-alpha core with two neutrons occupying the intruder orbits. The energy levels of the newly measured spin-assigned states were described well, except for the $1^-_1$ state. The calculations indicated that many exotic cluster structures appear in the low-energy region. The widths concerning alpha and 6He decays were discussed by using reduced width amplitudes.

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