VARIATIONAL MONTE-CARLO CALCULATIONS OF H-3 AND HE-4 WITH A RELATIVISTIC HAMILTONIAN

In relativistic Hamiltonians the two-nucleon interaction is expressed as a sum of <(nu)over tilde>(ij), the interaction action in the P-ij = 0 rest frame, and the ''boost interaction'' delta nu(P-ij) which depends upon the total momentum P-ij and vanishes in the rest frame. The delta nu can be regarded as a sum of four terms: delta nu(RE), delta nu(LC), delta nu(TP), and delta nu(QM); the first three originate from the relativistic energy-momentum relation, Lorentz contraction, and Thomas precession, while the last is purely quantum. The contributions of delta nu(RE) and delta nu(LC) have been previously calculated with the variational Monte Carlo method for H-3 and He-4. In this paper we report the results of similar calculations for the contributions of delta nu(TP) and delta nu(QM). These are found to be rather small.