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Title

Absolute cross section measurements for the scattering of low- and intermediate-energy electrons from PF3. II. Inelastic scattering of vibrational and electronic excitations

AuthorsHishiyama, N.; Hoshino, M.; Blanco, F.; García, Gustavo CSIC ORCID; Tanaka, H.
Issue Date28-Feb-2018
PublisherAmerican Institute of Physics
CitationJournal of Chemical Physics 148: 084313 (2018)
AbstractAs a sequel paper to our study of the elastic scattering for electron collisions with phosphorus trifluoride, PF molecules, we report absolute inelastic differential and integral cross sections (DCS and ICS) of vibrational excitations for the compound fundamental vibrational modes v (v + v), v (v + v), and their sum in the impact energy range of 2.0-10 eV and over a scattering angle range of 20°-130°. The measured angular distributions of scattered electron intensities for the present inelastic scattering are normalized to the elastic peak intensity corresponding to the DCSs of He. These vibrational excitation measurements demonstrate the presence of resonances around 2 eV and also around 6-10 eV. In addition, a generalized oscillator strength analysis is applied to derive oscillator strength f-values and (unscaled Born) ICSs from the corresponding DCSs measured for the low-lying optically allowed 8a → 7e (σ∗) excitation band, which is assigned as the Jahn-Teller splitting and 8a → 4s Rydberg transition at impact energies of 100, 200, and 300 eV, over a scattering angle range of 1.0°-15°. The f-values obtained in the present study are compared with the results of previous photoabsorption and pseudo-optical measurements. The unscaled Born ICSs are compared with the binary-encounter f-scaled Born ICSs estimated over a wide impact energy region from the excitation thresholds.
Description10 pags., 8 figs., 3 tabs.
Publisher version (URL)https://doi.org/10.1063/1.5012844
URIhttp://hdl.handle.net/10261/170855
DOI10.1063/1.5012844
Identifiersdoi: 10.1063/1.5012844
issn: 0021-9606
Appears in Collections:(CFMAC-IFF) Artículos




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