Experimental g factor and B(E2) value of the 4+1 state in Coulomb-excited 66Zn compared to shell-model predictions

The g factor of the 4(1)(+) state in Zn-66 has been measured for the first time employing the technique of projectile Coulomb excitation in inverse kinematics combined with transient magnetic fields. The lifetime of this state, tau(4(1)(+))=1.1(2) ps, which has been remeasured by the Doppler shift attenuation method, is twice as large as a previously determined value. Both the deduced B(E2;4(1)(+)-> 2(1)(+))=133(24) e(2) fm(4) and the g factor of the 4(1)(+) state, g(4(1)(+))=+0.65(20), were interpreted, together with results for the 2(1)(+) state, in the framework of shell-model calculations based on a Ni-56 closed-shell core. The present results are also compared with those for neighboring Zn-64 and Zn-68 that were obtained in previous measurements by the same technique.