Asymptotic behavior of apparent generalized oscillator strengths for optically forbidden transitions in rare-gas atoms

Suzuki, T.; Suzuki, H.; Ohtani, S.; Takayanagi, Toshiyuki; Okada, Kazuya

doi:10.1103/physreva.75.032705

Cited by 14 publications

(17 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2(b), the results of EELS measured at 2.5 keV [9] are much higher than the present ones of IXS except the data in the low-q 2 region. The similar phenomenon can be observed for the moderate collision energies [34], and the agreement between the ζ (q,ω n ) of EELS at 300-500 eV [33] and the ones of IXS in 0-1.6 a.u. will be discussed later.…”

supporting

confidence: 80%

See 1 more Smart Citation

Dynamic behavior of valence-shell excitations of atomic neon studied by high-resolution inelastic x-ray scattering

Zhu

Yang

et al. 2012

Phys. Rev. A

View full text Add to dashboard Cite

The high-resolution inelastic x-ray scattering has been applied to study the excitation mechanism of atomic neon. The different electric multipolar transitions of neon, i.e., the electric monopolar, dipolar, and quadrupolar ones, were clearly resolved, and their squared form factors were determined. It is found that for the monopolar and quadrupolar transitions the present inelastic x-ray scattering results are in agreement with the ones measured by high-energy electron scattering, while for the dipolar transition large discrepancies between the results measured by these two methods were observed. Such phenomena are well elucidated with the aid of the second-order Born approximation: Born amplitude of a transition near zero momentum transfer is the key factor which determines the behavior of the intramolecular multiple scattering in the high-energy electron scattering. It is revealed that the intramolecular multiple scattering in high-energy electron scattering must be considered for the dipole-allowed transition, while it is negligible for the dipole-forbidden ones.

show abstract

supporting

confidence: 80%

“…The previous experiments mostly measured the dynamic parameters of the valence-shell excitations of neon by lowenergy ( 100 eV) [29][30][31][32] or moderate-energy (300-500 eV) [33,34] electron impact. The only available experimental data by high-energy electron impact at 2.5 keV is the state-resolved GOS measurements [9], to the best of our knowledge.…”

mentioning

confidence: 99%

Dynamic behavior of valence-shell excitations of atomic neon studied by high-resolution inelastic x-ray scattering

Zhu

Yang

et al. 2012

Phys. Rev. A

View full text Add to dashboard Cite

show abstract

“…Here we use the same theory for scattering from Xe but extend our comparison to deeper excitation energies below the continuum. This approach is reasonably successful under conditions where the first Born approximation is quite good (5.1 • , 500 eV [13]), and under conditions where the first Born approximation fails completely (90 • , 500 eV [15]). …”

Section: Discussionmentioning

confidence: 96%

“…2. (Color online) Comparison of the 500-eV spectra, taken for a scattering angle of 5.1 • as measured by Suzuki et al [13] with the RDW present theory. of 2 or more.…”

Section: Comparison Of Theory With Previous Experimentsmentioning

confidence: 97%

See 1 more Smart Citation

Large-angle scattering of energetic electrons from Xe: A combined theoretical and experimental approach

McEachran

Vos

2012

Phys. Rev. A

View full text Add to dashboard Cite

We study the inelastic excitations of Xe for electrons with relatively high energies (500 or 750 eV) scattered over large angles, both experimentally and theoretically. In particular, we focus on the shape and intensity of the spectra of inelastically scattered electrons at the sharp dip in the elastic cross section near 135 • at 750 eV. Under these conditions, the first Born approximation predicts virtually zero intensity. However, in reality, measurable intensity is observed. Calculations carried out using the relativistic distorted-wave method describe the measurements reasonably well. A comparison is made between the calculations and previously published high-resolution studies. Overall agreement is quite good, especially for the lowest-energy excitations, but substantial differences are found for certain higher levels. The theory reproduces quite well the variations in intensity of the inelastic excitations for measurements near the dip in the elastic-scattering cross section, somewhat surprisingly, as the theories for elastic scattering and inelastic scattering are developed along completely different lines.

show abstract

Generalized oscillator strengths and integral cross sections of krypton studied by high-energy electron scattering

Ma,

Wang,

Nie

et al. 2024

Journal of Electron Spectroscopy and Related Phenomena

View full text Add to dashboard Cite

Asymptotic behavior of apparent generalized oscillator strengths for optically forbidden transitions in rare-gas atoms

Cited by 14 publications

References 33 publications

Dynamic behavior of valence-shell excitations of atomic neon studied by high-resolution inelastic x-ray scattering

Dynamic behavior of valence-shell excitations of atomic neon studied by high-resolution inelastic x-ray scattering

Large-angle scattering of energetic electrons from Xe: A combined theoretical and experimental approach

Generalized oscillator strengths and integral cross sections of krypton studied by high-energy electron scattering

Contact Info

Product

Resources

About