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arXiv · 1406.2473

Density Functional Theory studies of cluster states in nuclei

J. P. Ebran·E. Khan·T. Niksic·D. Vretenar
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Abstract

The framework of nuclear energy density functionals is applied to a study of the formation and evolution of cluster states in nuclei. The relativistic functional DD-ME2 is used in triaxial and reflection-asymmetric relativistic Hartree-Bogoliubov calculations of relatively light $N = Z$ and neutron-rich nuclei. The role of deformation and degeneracy of single-nucleon states in the formation of clusters is analysed, and interesting cluster structures are predicted in excited configurations of Be, C, O, Ne, Mg, Si, S, Ar and Ca $N = Z$ nuclei. Cluster phenomena in neutron-rich nuclei are discussed, and it is shown that in neutron-rich Be and C nuclei cluster states occur as a result of molecular bonding of $α$-particles by the excess neutrons, and also that proton covalent bonding can occur in $^{10}$C.

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J. P. Ebran, E. Khan, T. Niksic, D. Vretenar. 2014-09-26. Density Functional Theory studies of cluster states in nuclei. https://doi.org/10.1103/physrevc.90.054329

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