Exotic clusters in the excited states of Be-12, Be-14 and B-15

Abstract

The excited states of Be-12, Be-14 and B-15 were studied by an antisymmetrized molecular dynamics method. The theoretical results reproduced the energy levels of recently measured excited states of Be-12, and also predicted rotational bands with innovative clustering structures in Be-12, Be-14 and B-15. Clustering states with new exotic clusters (He-6, He-8 and Li-9) were theoretically suggested. One new aspect in very neutron-rich nuclei is a 6-nucleon correlation among 4 neutrons and 2 protons, which plays an important role in the formation of He-6 clusters during clustering: 8He + 6He of Be-14 and 9Li+6He of B-15.

8 pages, 3 figures. submitted to Phys.Rev.C

References in corpus (1)

• Variation after Angular Momentum Projection for the Study of Excited States Based on Antisymmetrized Molecular Dynamics

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• Microscopic Clustering in Light Nuclei
• Cluster Structures of the Ground and Excited States of 12Be Studied with Antisymmetrized Molecular Dynamics
• Deformation of hypernuclei studied with antisymmetirzed molecular dynamics
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• Approximation of reduced width amplitude and application to cluster decay width
• ${}^6$He-triton cluster states in ${}^9$Li
• Breaking of N=8 magicity in 13Be
• Monopole transitions to cluster states in ${}^{10}$Be and ${}^9$Li
• The study of the alpha formation probability in 10Be and 12Be within the microscopic cluster model
• Cluster structure in stable and unstable nuclei
• ${}^{10}$B+$\alpha$ states with chain-like structures in ${}^{14}$N