- Conference date: 26 September-1 October 2004
- Location: Santa Fe, New Mexico (USA)
We discuss the motivation, theory, and formulation of the ab initio No‐Core Shell Model (NCSM). In this method the effective Hamiltonians are derived microscopically from realistic nucleon‐nucleon (NN) and theoretical three‐nucleon (NNN)potentials, as a function of the finite harmonic‐oscillator (HO) basis space. We present converged results for the A = 3 and 4 nucleon systems, which are in agreement with results obtained by other exact methods, followed by results for p‐shell nuclei. Binding energies, rms radii, excitation spectra, and electromagnetic properties are discussed. The favorable comparison with available data is a consequence of the underlying NN and NNN interactions rather than a phenomenological fit.
- Shell model
- Ab initio calculations
- Excitation energies
- Spectral properties
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