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Photoionization of CF4 in the VUV region
Authors:E M Nascimento  L E Machado  L M Brescansin  M -T Lee
Institution:

a Departamento de Física, UFSCar, 13565-905, São Carlos, SP, Brazil

b Instituto de Física, UFBa, 40210-340, Salvador, BA, Brazil

c Instituto de Física ‘Gleb Wataghin’, UNICAMP, 13083-970, Campinas, SP, Brazil

d Departamento de Química, UFSCar, 13565-905, São Carlos, SP, Brazil

Abstract:We present calculated results of photoionization cross sections and photoelectron angular distributions for ionization out of the five outermost valence orbitals of CF4 for photon energies ranging from near threshold to 55 eV. The Schwinger variational iterative method, using an exact static-exchange plus a model correlation–polarization potential, is applied to obtain the continuum photoelectron orbitals. The quantitative agreement between our calculated results and the experimental data is fair. Moreover, our study is capable of identifying most structures seen in experimental results for both cross sections and asymmetry parameters.
Keywords:Photoionization cross sections  Photoionization asymmetry parameters  CF4  SVIM
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