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We study coherent and incoherent φ-meson photoproduction from nuclei. The available data are analyzed in terms of single and coupled channel photoproduction. It is found that the data on coherent photoproduction can be well reproduced within a single channel optical model and show only little room for ω − φ mixing. These data indicate a normal distortion of the φ-meson in nuclei, which is compatible with the results obtained through the vector meson dominance model. The data on incoherent φ-meson photoproduction show an anomalous A-dependence resulting in a very strong φ-meson distortion. These data can be explained by a coupled channel effect through the dominant contribution from the ω → φ or π→φ transition or, more speculative, through the excitation of a cryptoexotic B φbaryon. PACS. 11.80.Gw Multichannel scattering -12.40.Vv Vector-meson dominance -13.60.-r Photon and charged-lepton interactions with hadrons -25.20.Lj Photoproduction reactions

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We review the experimental information on the K + d reaction for K + -meson momenta below 800 MeV/c. The data are analysed within the single scattering impulse approximation -utilizing the Jülich kaon-nucleon model -that allows to take into account effects due to the Fermi motion of the nucleons in the deuteron and the final three-body kinematics for the break-up and charge exchange reaction. We discuss the consistency between the data available for the K + d→K + np, K + d→K 0 pp and K + d→K + d reactions and the calculations based on the spectator model formalism.