Two- and Three-Body Effects in Single Ionization of Li by 95MeV/u Ar18+ Ions: Analogies with Photoionization - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physical Review Letters Année : 1998

Two- and Three-Body Effects in Single Ionization of Li by 95MeV/u Ar18+ Ions: Analogies with Photoionization

Résumé

Cross sections for single electron emission have been measured in collisions of 95MeV/u Ar18+ with atomic Li for electron energies 5–1000 eV and angles 25°–155°. The high projectile velocity made possible the separation of two- and three-body processes in the angular distributions of the ejected electrons. Low-energy emission of the 2s electrons is found to be significantly influenced by two-body effects and, furthermore, the node in the Li 2s wave function manifests itself in the angular spectra. Emission of 1s electrons is attributed mainly to three-body effects. The two- and three-body processes are associated with Compton scattering and photoabsorption, respectively.
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hal-01216821 , version 1 (17-10-2015)

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N. Stolterfoht, J.-Y. Chesnel, M. Grether, B. Skogvall, F. Frémont, et al.. Two- and Three-Body Effects in Single Ionization of Li by 95MeV/u Ar18+ Ions: Analogies with Photoionization. Physical Review Letters, 1998, 80 (21), pp.4649. ⟨10.1103/PhysRevLett.80.4649⟩. ⟨hal-01216821⟩
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