Photodisintegration of light nuclei for testing a correlated realistic interaction in the continuum

An exact calculation of the photodisintegration cross section of H-3, He-3, and He-4 is performed by using as interaction the correlated Argonne V18 potential, constructed within the unitary correlation operator method (V-UCOM). Calculations are carried out by using the Lorentz integral transform method in conjunction with a hyperspherical harmonics basis expansion. A comparison with other realistic potentials and with available experimental data is discussed. The V-UCOM potential leads to a description of the cross section that is very similar to that of the Argonne V18 interaction with the inclusion of the Urbana IX three-body force for photon energies 45 <=omega <= 120 MeV, whereas larger differences are found close to threshold.