Cluster Phenomena in Stable and Unstable Nuclei

Abstract

In this paper, we discuss cluster features in light stable and unstable nuclei. We theoretically investigate the structures of neutron-rich Be nuclei and discuss their molecular orbital bond structure and its role in the vanishing of the neutron magic number N = 8. The two-body cluster resonances in highly excited states near the threshold energy are also discussed. The cluster excited states of 9 Li are investigated, and 6 He+t cluster resonance states are predicted near the threshold energy in 9 Li. The similarities and differences in the cluster features between 9 Li and 10 Be are also discussed.

Two-proton momentum correlation from photodisintegration of α -clustering light nuclei in the quasideuteron region

“…With a four-α-clustering structure, a chain configuration was predicted by the Skyrme Cranked Hartree-Fock method [11], and a tetrahedral structure as a ground state was predicted based on the chiral nuclear effective field theory [12]. Different geometrical shapes of the αclustering nuclei can induce rich properties of structure and reaction [13][14][15][16][17][18][19][20][21]. Some probes have been presented as sensitive observables to geometrical shapes of clustering nuclei.…”

Photonuclear reaction as a probe for α -clustering nuclei in the quasi-deuteron region

“…As for target nucleus in photon-induced reactions, especially for α-conjugate light nucleus, α-clustering state plays one of the fundamental roles in current nuclear physic and nuclear astrophysics, which is crucial for the process of nuclear-synthesis and the abundance of elements [9][10][11][12][13][14][15]. For the α-clustering nucleus, the emergent properties are rich because of their different configurations and shapes [16][17][18][19][20][21][22]. For instance, giant dipole resonance (GDR) displays corresponding characteristic spectra for different configurations of 12 C and 16 O [23].…”