A mean-field description of (γ, pi) cross sections at medium energies

J. Ryckebusch, M. Waroquier, K. Heyde, D. Ryckbosch
Physics Letters B
194 (4), 453-458
Published while none of the authors were employed at the CMM


Differential (γ, pi) cross sections on 16O and 40Ca have been calculated within a single-particle direct knock-out model, for photon energies between 40 and 400 MeV. It is shown that generating the bound and scattered states in a Skyrme Hartree-Fock (HF) mean-field, one can account for the global features of the data. Hereby, the role of the velocity-dependent part of the nucleon-nucleon interaction is emphasized.