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Density Functional Theory studies of cluster states in nuclei

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 $\alpha$-particles by the excess neutrons, and also that proton covalent bonding can occur in $^{10}$C.
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Submitted on : Wednesday, June 25, 2014 - 11:22:55 AM
Last modification on : Tuesday, November 30, 2021 - 8:32:05 AM

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J. P. Ebran, E. Khan, T. Niksic, D. Vretenar. Density Functional Theory studies of cluster states in nuclei. Physical Review C, American Physical Society, 2014, 90, pp.054329. ⟨10.1103/PhysRevC.90.054329⟩. ⟨in2p3-01012018⟩



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