NN interaction in a Goldstone boson exchange model - art. no. 055207

Adiabatic nucleon-nucleon potentials are calculated in a six-quark nonrelat ivistic chiral constituent quark model where the Hamiltonian contains a lin ear confinement and a pseudoscalar meson (Goldstone boson) exchange interac tion between quarks. Calculations are performed both in a cluster model and a molecular orbital basis, through coupled channels. In both cases the pot entials present an important hard core at short distances, explained throug h the dominance of the [51](FS) configuration, but do not exhibit an attrac tive pocket. We add a scalar meson exchange interaction and show how it can account for some middle range attraction. [S0556-2813(99)04510-0].