Very HighKr7+*Rydberg States after Electron Capture from Laser-ExcitedRb*(17p)Atoms intoKr8+

Autor: J. Pascale, H. J. Andrä, A. Pesnelle, R. Trainham, E. Monnand
Rok vydání: 1995
Předmět:
Zdroj: Physical Review Letters. 74:4169-4172
ISSN: 1079-7114
0031-9007
Popis: State selective measurements of single electron capture in collisions at 40 and 18 keV of multicharged ions ${\mathrm{Kr}}^{8+}$ with laser-excited ${\mathrm{Rb}}^{*}(17p)$ have been performed by use of a new field ionization detector. We have observed very highly excited states ${\mathrm{Kr}}^{7+*}(n)$, as a result of the high degree of excitation of the target and of the high charge of the projectile. Wide $n$ distributions of the cross sections have been obtained experimentally, with $n$ ranging from 67 to 110. By using the classical trajectory Monte Carlo method, we have calculated even wider $n$ distributions, in contrast to the extended classical over-barrier model which yields much narrower $n$ distributions.
Databáze: OpenAIRE