Quantum Monte Carlo Calculations of \(A\leq6\) Nuclei

The energies of \(^{3}H\), \(^{3}He\), and \(^{4}He\) ground states, the \({\frac{3}{2}}^{-}\) and \({\frac{1}{2}}^{-}\) scattering states of \(^{5}He\), the ground states of \(^{6}He\), \(^{6}Li\), and \(^{6}Be\) and the \(3^{+}\) and \(0^{+}\) excited states of \(^{6}Li\) have been accurately calculated with the Green's function Monte Carlo method using realistic models of two- and three-nucleon interactions. The splitting of the \(A=3\) isospin \(T=\frac{1}{2}\) and \(A=6\) isospin \(T=1\), \(J^{\pi} = 0^{+}\) multiplets is also studied. The observed energies and radii are generally well reproduced, however, some definite differences between theory and experiment can be identified.