Acta Physica Polonica. B, 1997, no. 1/2, s. 393-396
Many present experimental and theoretical investigations have focused
on the D-state admixtures to the ground state wavefunction of the fewnucleon
systems. The presence of these non-spherical components is a direct
manifestation of the NN tensor interaction which is a crucial part of
the nuclear force accounting for about 70% of the deuteron binding interaction
and 40-50% of the binding for the three- and four-nucleon systems.
Theoretical calculations use Faddeev-type equations for Hamiltonians based
on two- and three-body models which are solved to calculate properties of
few-body systems such as binding energies, radii and D-state probabilities.
The measurement of the D-state observables therefore enables a comparison
between experimental and theoretical models[…]