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A previously defined short range nonlocal nucleon-nucleon (NN) interaction, which more closely matches common expectations and reproduces the 3 H and 3 He binding energies, is tested in elastic scattering. Nonlocal P-wave interactions with modified on-shell behavior were constructed in order to produce better low-energy n -d analyzing powers. At low energies some of the changes are due to the correct 3N binding energy, however, there are effects due to the characteristic properties of the nonlocal interactions. There is an indication that p -d calculations based on the present nonlocal NN interactions (with or without the modified P-wave interactions) would produce the same quality or better agreement with the low-and medium-energy experimental data than the corresponding local NN interaction plus 3N force model.

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The first exact calculation of a three-body hadronic atom was performed. Kaonic deuterium 1s level shift and width were evaluated using Faddeev-type equations with Coulomb interaction. The obtained exact results were compared with commonly used approximate approaches.

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A short-range nonlocal nucleon-nucleon potential, which previously provided a better description for the three-nucleon bound states 3 H and 3 He then the local-potential models, is tested in p-d scattering calculations at energies below the three-body breakup threshold. This potential again provides an equivalent or better description of the experimental data than the local Argonne+3N force model.

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