Configuration mixing in ${}^{188}$Pb : band structure and electromagnetic properties

Abstract

In the present paper, we carry out a detailed analysis of the presence and mixing of various families of collective bands in ${}^{188}$Pb. Making use of the interacting boson model, we construct a particular intermediate basis that can be associated with the unperturbed bands used in more phenomenological studies. We use the E2 decay to construct a set of collective bands and discuss in detail the B(E2)-values. We also perform an analysis of these theoretical results (Q, B(E2)) to deduce an intrinsic quadrupole moment and the associated quadrupole deformation parameter, using an axially deformed rotor model.

submitted to prc