English

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

Nuclear Theory 2023-08-02 v2

Abstract

We explore the structure of the ground state of 20^{20}Ne by investigating various density profiles. Four candidates for the ground state configurations, (a) jj-jj coupling and (b) SU(3) shell model and (c) 5α5\alpha and (d) 16O+α^{16}{\rm 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^{20}Ne favors a 16+4 nucleon bi-cluster structure. A comprehensive investigation of other electric observables also supports this conclusion.

Keywords

Cite

@article{arxiv.2305.09182,
  title  = {Evidence of bicluster structure in the ground state of $^{20}$Ne},
  author = {Y. Yamaguchi and W. Horiuchi and N. Itagaki},
  journal= {arXiv preprint arXiv:2305.09182},
  year   = {2023}
}

Comments

9 pages, 6 figures