Properties of C-12 in the ab initio nuclear shell model

We obtain properties of C-12 in the db initio no-care nuclear shell model. The effective Hamiltonians are derived microscopically from the realistic C D Bonn and the Argonne V8' nucleon-nucleon (NN) potentials as a function of the finite harmonic oscillator basis space. Binding energies, excitation s pectra, and electromagnetic properties are presented for model spaces up to 5h Ohm. The favorable comparison with available data is a consequence of t he underlying NN interaction rather than a phenomenological fit.