Three-photon detachment of electrons from the fluorine negative ion

Details Three-photon detachment of electrons from the fluorine negative ion Three-photon detachment of electrons from the fluorine negative ion

1999-10-06

arxiv.org/abs/physics/9910007v1

J PHYS B-AT MOL OPT 33: (4) 821-828 FEB 28 2000

Physics

Atomic Physics

10 pages, two figures, Latex, IOP style

Scientific paper

10.1088/0953-4075/33/4/316

Absolute three-photon detachment cross sections are calculated for the fluorine negative ion within the lowest-order perturbation theory. The Dyson equation of the atomic many-body theory is used to obtain the ground-state 2p wavefunction with correct asymptotic behaviour, corresponding to the true (experimental) binding energy. We show that in accordance with the adiabatic theory (Gribakin and Kuchiev 1997 {Phys. Rev. A} {\bf 55} 3760) this is crucial for obtaining absolute values of the multiphoton cross sections. Comparisons with other calculations and experimental data are presented.

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