Three-photon detachment of electrons from the fluorine negative ion
نویسندگان
چکیده
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 55 3760) this is crucial for obtaining absolute values of the multiphoton cross sections. Comparisons with other calculations and experimental data are presented. PACS numbers: 32.80.Gc, 32.80.Rm Short title: Three-photon detachment from F−
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