Investigation of the 9B nucleus and its cluster-nucleon correlations

Abstract

In order to study the correlation between clusters and nucleons in light nuclei, we formulate a new superposed THSR wave function which describes both spatial large spreading and cluster-correlated dynamics of valence nucleons. By using the new THSR wave function, the binding energy of 9B is essentially improved comparing with our previous studies. We calculate the excited states of 9B and obtain the energy spectrum of 9B which is consistent with the experimental results, including prediction of the 1/2+ excited state of 9B which is not fixed yet experimentally. We study the proton dynamics in 9B and find that the cluster-proton correlation plays an essential role for the proton dynamics in the ground state of 9B. Further more, we discuss the density distribution of the valence proton with special attention to its tail structure. Finally, the resonance nature of excited states of 9B is illustrated by comparing root-mean-square radii between the ground and excited states.

16 pages, 8 figures

References in corpus (4)

• Giant Dipole Resonance as a Fingerprint of $\alpha$ Clustering Configurations in ${}^{12}$C and ${}^{16}$O
• Investigation of 10Be and its cluster dynamics from nonlocalized clustering concept
• Investigation of ${}^9$Be from nonlocalized clustering concept
• New cluster approach on properties of 8-11Be isotopes with isospin-dependent spin-orbit potential

Cited by in corpus (6)

• Nonlocalized Clustering and Evolution of Cluster Structure in Nuclei
• Direct probing of the cluster structure in ${}^{12}$Be via $\alpha$-knockout reaction
• Resonant and Scattering States in the $\alpha +\alpha$ System from the Non-Localized Cluster Model
• Nonlocalized motion in two-dimensional container of $\alpha$ particles in $3^{-}$ and $4^{-}$ states of ${}^{12}$C
• Evolution of clustering structure through the momentum distributions in ${}^{8-10}$Be isotopes
• Second T = 3/2 state in ${}^9$B and the isobaric multiplet mass equation