Many-body effects in negative ion photodetachment

Many-body effects in photodetachment from negative ions are discussed in th is article. A short survey of model and ab initio many-electron approaches applied to the study of negative ions is presented. Manifestations of the d ynamic many-electron effects such as the interference between different cha nnels, the polarization interaction, core relaxation and screening of the i nterelectron interaction in one-photon photodetachment processes are consid ered. Attention is centred on the resonances in the single-electron photode tachment cross section.