Abstract
A one-boson-exchange potential (OBEP) represented in momentum space and a helicity state basis is used to calculate the nuclear phase shifts up to 330 MeV, the deuteron and two-nucleon low-energy data. It satisfies the requirement of minimal relativity and contains off-energy-shell behaviour based upon covariant perturbation theory as well as relativistic features like energy dependence. In addition to the scalar σ 0( T = 0) and δ( T = 1) resonances the well-established π-, η,- θ-, ω- and φ-mesons have been exchanged. The good fit to the empirical Livermore data is represented by a least-squares value of 2.6 for 103 pieces of data. The fitted meson coupling constants essentially agree with those known from other sources. The results are compared with those owing to a former OBEP given in the configuration space.
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