Electromagnetic properties of vibrational bands in 170Er

Excited states of the nucleus 170Er have been studied by Coulomb excitation using the GASP \( \gamma\) -ray detector system at the Laboratori Nazionali di Legnaro. The ground-state band along with a low-lying \(\ensuremath K^{\pi}=0^+\) band and \( \gamma\) -vibrational band were populated during the experiment. Based on the measured \( \gamma\) -ray yields, a set of interband and intraband matrix elements has been extracted using the Coulomb excitation code GOSIA. The resulting E2 matrix elements are compared to collective model predictions.