Approximation-free solutions of the Schrödinger equation are given for the ground states of three- and four-body nuclei, employing spin-independent central two- and three-body forces. Comparison with the results of more approximate few-body methods shows their relative accuracy.

NUCLEAR STRUCTURES ${}_{}{}^3{}_{}{}^{}\mathrm{H}$, ${}_{}{}^3{}_{}{}^{}\mathrm{He}$, ${}_{}{}^4{}_{}{}^{}\mathrm{He}$; two- and three-body forces; calculated binding and proton densities. Green's-function Monte Carlo.

• Received 22 October 1981

DOI:https://doi.org/10.1103/PhysRevC.25.1111