Four-nucleon problem in the integral-equation approach

Integral equations of motion for a system of four pair-wise interacting nucleons have been formulated assuming that the NN interaction is charge-independent and is described by an arbitrary (local or nonlocal) central potential of the exchange type. The equations are derived basing on the Faddeev-Yakubovsky method with strict account of the Pauli principle. The obtained integral equations describe all possible processes in the four-nucleon system with a two-fragment asymptotical initial state (a nucleon+a three nucleon nucleus or deuteron+deuteron) as well as the four-nucleon system in bound and resonance states