Shape changes of N=66 isotones Mo–Ce in DPPQ model Original Research Article

The dynamic pairing plus quadrupole model is used to study the changes in nuclear structure of N=66 isotones of Mo–Sn–Ce. Two different single-particle configurations have been used for Z<50 and Z⩾50 regions and their suitability for respective regions is illustrated. The variations with Z of the quadrupole deformation β, deformation energy Ed, and the 21+ state energy, B(E2;0+→2+) and quadrupole moment Q(2+) are reproduced. The role of the spin–orbit partner (SOP) orbitals in n–p interaction for inducing the deformation in each region is studied.