Abstract
We present results of a theoretical investigation of the partial and total photoionization cross sections between the 1D and 1S thresholds of atomic fluorine using the multiconfiguration Hartree–Fock method of bound and continuum wavefunctions. The 2p4(1S)ns, md series observed by an experiment through their decay into the allowed 2p4(3P)kl and 2p4(1D)kl ionization channels are carefully identified. The 2s2p6 2S resonance is seen to interact strongly with the nearby 2p4(1S)4s 2S resonance. The results of the partial cross sections are first compared with the experimental observations. The total cross sections are compared with the available experimental and theoretical data. The energy positions of the resonance series 2p4(1S)ns, md as well as 2s2p6 2S excitation are found to be in very good agreement with the experimental observations.
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