Very high Kr{sup 7+}* Rydberg states after electron capture from laser-excited Rb*(17{ital p}) atoms into Kr{sup 8+}

Journal Article · Mon May 22 04:00:00 EDT 1995 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.74.4169· OSTI ID:69259

Pesnelle, A; Trainham, R; Pascale, J; Monnand, E; Andrae, H J ^[1]

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1. 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

Related Subjects

66 PHYSICS
CROSS SECTIONS
ELECTRON CAPTURE
EXCITED STATES
IONIZATION
KRYPTON
LASERS
MONTE CARLO METHOD
RUBIDIUM
RYDBERG STATES
TRAJECTORIES