Pauli focusing of particles and the 6He ground state structure in the α+2N model

Study of basic (nuclear stable) state of 6He 0+ nucleus is conducted within the framework of three body model (α+N+N) according to hyperspheric harmonic (HH) method. The complete interaction in the system included nn-potential in s-state, nα-potential in s- and p-states with Is-component. The potentials indicated represent low-energy nn- and nα-scattering phases and are chosen in the form of rectangular holes. nα potential in s-state was selected as purely repulsive one. The whole calculation was conducted using local l-dependent potentials without forbidden states. Dinucleon correlation considered has nothing in common with NN-interaction in a finite state caused by the closeness to zero of a virtual level in NN-system, and is conditioned by Pauli principle. The effect of dinucleon and other configuration occurrence can be termed as Pauli focusing in a three-body problem. It can be also manifested in other systems of three-cluster nature, as well as in true three-particle complex nucleus decays