Electron recombination with multicharged ions via chaotic many-electron states
V. V. Flambaum, A. A. Gribakina, G. F. Gribakin, C. Harabati
Abstract
We show that a dense spectrum of chaotic multiply-excited eigenstates can play a major role in collision processes involving many-electron multicharged ions. A statistical theory based on chaotic properties of the eigenstates enables one to obtain relevant energy-averaged cross sections in terms of sums over single-electron orbitals. Our calculation of the low-energy electron recombination of Au25+ shows that the resonant process is 200 times more intense than direct radiative recombination, which explains the recent experimental results of Hoffknecht et al. [J. Phys. B 31, 2415 (1998)].
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