``Container'' evolution of nuclear clustering in 16O

We introduce the so-called THSR wave function to describe various nuclear states with cluster correlation[1]. Its importance, applicability, and usefulness are extensively discussed in this contribution. The THSR wave function is a promising model to give a comprehensive understanding of cluster states, from the ground states with cluster correlation, ordinary localization of clusters, up to their dilute gaslike configuration. The model wave function explains the evolution of cluster states, from the compact to dilute ones, as an evolution of ``container'' of constituent clusters. This container evolution picture is demonstrated for 16O case by using the THSR ansatz. The ground state with the 4-alpha tetrahedral correlation, alpha+12C cluster states, and the 4-alpha condensate with gaslike configuration are revealed and beautifully explained in the THSR framework[2].

[1] Y. Funaki, H. Horiuchi, A. Tohsaki, Prog. Part. Nucl. Phys. 82, 78 (2015).
[2] Y. Funaki, Phys. Rev. C 97, 021304(R) (2018).