Comparison of Brueckner theory with “exact” results for H3 and He4 nuclei

The consistency of the second-order Brueckner-Baranger approximation to the ground-state energyE of H³ and He⁴ nuclei is confirmed by the agreement ofE with the recent Faddeev and Faddeev-Yakubovsky equation results for Reid local potential, by the dependence ofE on different phase-equivalent transforms (= off-shell changes) of the Reid potential which agrees with Faddeev equation and nuclear matter calculations, and by the Coester line well reproduced for a set of realistic potentials in He⁴. The influence of approximations in solving Bethe-Goldstone equation is also discussed.