Translationally invariant treatment of pair correlations in nuclei - II. Tensor correlations

We study the extension of our translationally invariant correlated-cluster treatment of few-body nuclear systems to include tensor forces and correlat ions. It is shown that a direct application of our method is not as success ful for realistic V6 interactions as our previous results for V4 potentials suggested. We investigate the cause in detail for the case of He-4, and sh ow that a combination of the method of translationally invariant configurat ion interactions truncated at second order with that of Jastrow-correlated wave functions seems to be a lot more powerful, thereby suggesting that for mildly to strongly repulsive forces such a hybrid procedure may be an appr opriate description. (C) 1998 Elsevier Science B.V.