Miron Ya. Amusia

Single and double photoionisation in Xe and Ba above the 4d threshold

The authors advance and examine a new mechanism which strongly influences the photoionisation processes above the 4d threshold in Xe and Ba. It is shown that the elastic and inelastic scattering of the inner-shell photoelectron by the outer-shell electrons determines the rate of single and double ionisation, decomposing the cross section of the inner-shell photoabsorption into these two channels. The results of these calculations are in good agreement with experimental data.

Many-electron correlations in negative-ion photodetachment

Photodetachment cross sections for Na-, Ag-, I- and Si- negative ions, calculated using the random phase approximation with exchange are presented. The cross sections for outer and nearby inner subshells are strongly influenced by intrashell and intershell electron correlations. It is found that in some particular cases correlations radically change the photodetachment cross sections.

Handbook of Theoretical Atomic Physics

Preface.- Part I: Photon Absorption.- Main points of the theory.- Photon Absorption - Results of Calculations.- Part II: Electron Scattering.- Main points of the theory.- Electron Scattering - Results of Calculations.- Part III: Vacancies Decay.- Main points of theory.- Vacancy decay -results of calculations.- Conclusion and Perspectives.- Part IV: Addendum.- Photon absorption - results of calculations.- Electron scattering - results of calculations (on web-site only presents data on atoms, ions and endohedrals not included in the paper version).