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Dielectronic recombination of Pb{sup 79+} atomic ions at high spectral resolution

Journal Article · · Physical Review. A
 [1];  [1];  [2]
  1. Department of Physics, Auburn University, Auburn, Alabama 36849 (United States)
  2. Department of Physics and Applied Physics, University of Strathclyde, Glasgow G4 0NG, (United Kingdom)
Dielectronic recombination cross sections for {delta}n=0 transitions in Pb{sup 79+} are calculated in a fully relativistic distorted-wave approximation. We present detailed nlj results for the first resonances associated with the 2s{yields}2p(bar sign) (j=(1/2)) core excitation, which opens up at n=20, and for the first resonances associated with the 2s{yields}2p (j=(3/2)) core excitation, which overlap the 1s{sup 2}2p(bar sign)nl resonances series. An accurate identification of these peaks is of importance in the ongoing dielectronic recombination experiments for the determination of the 2s-2p threshold energies. Careful examinations of Breit interaction and QED effects are performed in order to calculate the resonance energies with a resolution comparable with present experimental resolution. Fully relativistic calculations for Auger and radiative rates are performed for an accurate determination of the peak heights. (c) 2000 The American Physical Society.
OSTI ID:
20215314
Journal Information:
Physical Review. A, Journal Name: Physical Review. A Journal Issue: 2 Vol. 61; ISSN 1050-2947; ISSN PLRAAN
Country of Publication:
United States
Language:
English