Multiple Coulomb excitation experiment of 66Zn

A Coulomb excitation experiment was carried out with a Zn-66 beam bombarding a Pb-nat target. Four E2 matrix elements and the quadrupole moment of the 2(1)(+) state were derived with the least-squares search code GOSIA. According to the B(E2) values, the ground band can be interpreted as a quasirotational band. It was found that the 2(1)(+) level has a positive quadrupole moment, which may be interpreted as a soft triaxial deformation.