Study of the K quantum number dependence on the deformation in Ho-165 nucleus

This work is devoted to the Coulomb excitation of Ho-165. Experiments were performed at the Heavy Ion Laboratory of Warsaw University. A model-indepen dent analysis using tile GOSIA code yielded a set of reduced matrix element s values coupling the low-lying collective excited states. A quadrupole sum rules approach was used to determine the deformation of the states. A rema rkable change of quadrupole moment in one of the gamma -vibrational bands w as found.