16O+16O molecular nature of the superdeformed band of 32S and the evolution of the molecular structure

The relation between the superdeformed band of 32S and 16O+16O molecular bands is studied by the deformed-basis antisymmetrized molecular dynamics with the Gogny D1S force. It is found that the obtained superdeformed band members of S have a considerable amount of the 16O+16O component. Above the superdeformed band, we have obtained two excited rotational bands which have more prominent character of the 16O+16O molecular band. These three rotational bands are regarded as a series of 16O+16O molecular bands which were predicted by using the unique 16O-16O optical potential. As the excitation energy and principal quantum number of the relative motion increase, the 16O+16O cluster structure becomes more prominent but at the same time, the band members are fragmented into several states