Two-photon detachment of electrons from halogen negative ions

Details Two-photon detachment of electrons from halogen negative ions Two-photon detachment of electrons from halogen negative ions

1999-03-10

arxiv.org/abs/physics/9903016v1

J PHYS B-AT MOL OPT 32: (23) 5463-5478 DEC 14 1999

Physics

Atomic Physics

Latex, IOP stile, 22 pages, 8 figures

Scientific paper

10.1088/0953-4075/32/23/304

Absolute two-photon detachment cross sections and photoelectron angular distribution are calculated for halogen negative ions within lowest-order perturbation theory. The Dyson equation method is used to obtain the outer np ground-state wave functions with proper asymptotic behavior exp (-k r), corresponding to correct (experimental) binding energies E=k^2/2. The latter is crucial for obtaining correct absolute values of the multiphoton cross sections (Gribakin and Kuchiev 1997 Phys. Rev.A55 3760). Comparisons with previous calculations and experimental data are performed.

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