Three-photon detachment of electrons from the fluorine negative ion

G F Gribakin, V K Ivanov, A V Korol, M Yu Kuchiev
2000 Journal of Physics B: Atomic, Molecular and Optical Physics  
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
more » ... values of the multiphoton cross sections. Comparisons with other calculations and experimental data are presented.
doi:10.1088/0953-4075/33/4/316 fatcat:e4i4jzergzb7xdq2b34zqyle74