Les tats O+ de 16O

The 0/sup +/ levels in /sup 16/O are studied in terms of the shell model with zero-range nuclear forces. All the 0/sup +/ levels are described as a mixture of the closed shell configuration and configurations with 2h omega unperturbed energies. The spurious states are eliminated, and the energy matrix is diagonalized. The interference between the ground state and the first excited state correctly explains the monopole matrix element and the ratio of the transition probabilities from the first 1-T = 1 level to these two levels. For the excitation energies, the agreement is not very good. (auth)