An improvement of the recently developed effective interaction method for the hyperspherical formalism is presented. The method is extended to include contributions of three-body effective forces and of the nonadiabatic kinetic energy term. The role of these two additional contributions is tested on the binding energy of He-4 and Li-6 using semirealistic and more realistic NN potential models. The rate of convergence is improved considerably, opening up the possibility to use the method with realistic two- and three-body potentials for the alpha-particle and for few-body nuclei with more than four nucleons.
Improved effective interaction fot the hyperspherical formalism
Leidemann, Winfried;Orlandini, Giuseppina
2003-01-01
Abstract
An improvement of the recently developed effective interaction method for the hyperspherical formalism is presented. The method is extended to include contributions of three-body effective forces and of the nonadiabatic kinetic energy term. The role of these two additional contributions is tested on the binding energy of He-4 and Li-6 using semirealistic and more realistic NN potential models. The rate of convergence is improved considerably, opening up the possibility to use the method with realistic two- and three-body potentials for the alpha-particle and for few-body nuclei with more than four nucleons.File in questo prodotto:
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