Towards the continuum coupling in nuclear lattice effective field theory I: A three-particle model

Weakly bound states often occur in nuclear physics. To precisely understand their properties, the coupling to the continuum should be worked out explicitely. In a first step, we use a simple nuclear model in the continuum and on a lattice to investigate the influence of a third particle on a loosely bound state of a particle and a heavy core.
Comment: 14 pages, 6 figures, enlarged version, accepted for publication in Chin. Phys. C