%0 Journal Article %T Few-nucleon systems in translationally invariant harmonic oscillator basis %A P. Navratil %A G. P. Kamuntavicius %A B. R. Barrett %J Physics %D 1999 %I arXiv %R 10.1103/PhysRevC.61.044001 %X We present a translationally invariant formulation of the no-core shell model approach for few-nucleon systems. We discuss a general method of antisymmetrization of the harmonic-oscillator basis depending on Jacobi coordinates. The use of a translationally invariant basis allows us to employ larger model spaces than in traditional shell-model calculations. Moreover, in addition to two-body effective interactions, three- or higher-body effective interactions as well as real three-body interactions can be utilized. In the present study we apply the formalism to solve three and four nucleon systems interacting by the CD-Bonn nucleon-nucleon potential. Results of ground-state as well as excited-state energies, rms radii and magnetic moments are discussed. In addition, we compare charge form factor results obtained using the CD-Bonn and Argonne V8' NN potentials. %U http://arxiv.org/abs/nucl-th/9907054v1