Very high Kr{sup 7+}* Rydberg states after electron capture from laser-excited Rb*(17{ital p}) atoms into Kr{sup 8+}
- Service des Photons, Atomes et Molecules, CEA, Centre d`Etudes de Saclay, 91191 Gif-sur-Yvette-Cedex (France)
State selective measurements of single electron capture in collisions at 40 and 18 keV of multicharged ions Kr{sup 8+} with laser-excited Rb*(17{ital p}) have been performed by use of a new field ionization detector. We have observed very highly excited states Kr{sup 7+*}({ital n}), as a result of the high degree of excitation of the target and of the high charge of the projectile. Wide {ital n} distributions of the cross sections have been obtained experimentally, with {ital n} ranging from 67 to 110. By using the classical trajectory Monte Carlo method, we have calculated even wider {ital n} distributions, in contrast to the extended classical over-barrier model which yields much narrower {ital n} distributions.
- OSTI ID:
- 69259
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 21 Vol. 74; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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