Condensed structure of J = T = 0 α-like clusters in even-even nuclei with N = Z

Abstract

Abstract Microscopic calculations are carried out for investigating the α-like four-nucleon correlations in the core plus (f 7 2 ) 4n systems with N = Z. The results of the calculations lead us to the following conclusions. The α-like four-nucleon correlations form an α-like cluster with J = 0, T = 0 as a unit of the collective motion in the ground states of these systems. The ground states, in which each α-like cluster interacts with the others just like a boson, become the condensed structure of the α-like clusters. Furthermore, the calculation based on the condensed α-like cluster model in the fp-shell indicates that the nucleus 48Cr has the structure of the 40Ca core plus two α-like clusters.