Evidence of bicluster structure in the ground state of ${}^{20}$Ne

Abstract

We explore the structure of the ground state of ${}^{20}$Ne by investigating various density profiles. Four candidates for the ground state configurations, (a) $j$-$j$ coupling and (b) SU(3) shell model and (c) $5\alpha$ and (d) ${}^{16}\mathrm{O}+\alpha$ cluster model configurations are generated by utilizing the antisymmetrized quasicluster model. A high-energy reaction theory, the Glauber model, relates these one-body density distributions and reaction observables. The angular distributions of the elastic scattering cross sections clearly distinguish these configurations and tell which is the most plausible one: The ground state of ${}^{20}$Ne favors a 16+4 nucleon bi-cluster structure. A comprehensive investigation of other electric observables also supports this conclusion.

9 pages, 6 figures

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Cited by in corpus (4)

• Deformation probes for light nuclei in their collisions at relativistic energies
• Directly probing existence of $\alpha$-cluster structure in ${}^{20}$Ne by relativistic heavy-ion collisions
• Identifying $\alpha$-cluster configurations in ${}^{20}$Ne via ultracentral Ne+Ne Collisions
• Deformation, halo, and bubble structure: A paradigm shift of exotic phenomena in light to medium mass nuclei