Lifetime measurements of Zn isotopes around N = 40

Lifetimes of the low-lying states in Zn isotopes around N = 40 have been measured using the Recoil Distance Doppler Shift method. The nuclei of interest were populated in deep-inelastic reactions in inverse kinematics. The ratios B(E2; 4+ → 2+)=B(E2; 2+ → 0+) measured for the Zn isotopes follow a systematics consistent with a seniority classification.