Coexistence in the even zinc isotopes

A generalized two-state coexistence model developed to describe the 0+/sup '/ to ground state cross-section ratios in the (p,t) and (t,p) reactions on even-even nuclei is applied to the zinc isotopes. We demonstrate that two-state mixing wave functions for the ground state and excited 0+' state in /sup A/Zn can quantitatively account for all σ(0+/sup '/)/σ (g.s.) ratios in Zn(p,t) and Zn(t,p). Finally, we couple these 0+ wave functions with a set of two-state mixing 2+ wave functions to describe the E2 transition-rate data in /sup 68/Zn