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Squared form factors for the A(1)Pi and B-1 Sigma(+) vibronic bands of carbon monoxide studied by high-resolution inelastic x-ray scattering
Ni, DD; Kang, X; Yang, K; Liu, YW; Mei, XX; Zhao, XL; Xu, LQ; Hiraoka, N; Tsuei, KD; Zhu, LF
2015
Source PublicationPHYSICAL REVIEW A
Volume91Issue:4Pages:
Subtype期刊文献
AbstractUsing the inelastic x-ray scattering with a high resolution of 70 meV, squared form factors of molecular carbon monoxide have been determined from the ground state X-1 Sigma(+) to the vibronic states of A(1)Pi and B-1 Sigma(+). Since the first Born approximation is satisfied in inelastic x-ray scattering, the inelastic squared form factors of the valence-shell excitations of carbon monoxide measured by this work not only provide the experimental benchmark data but also serve as the high-energy limit for the electron impact method. Based on the present experimental results, the validity conditions of the previous electron impact works are discussed. It is found that for the excitations of A(1)Pi(v' = 0-6) the first Born approximation is reached in the region of q(2) < 0.7 a.u. at an impact electron energy of 1.5 keV, while for B-1 Sigma(+)(v' = 0) the first Born approximation does not fully hold at the impact electron energy of 1.5 keV except for the q(2) < 0.15 a.u. The large discrepancies between the present inelastic x-ray scattering results and the theoretical calculations for most transitions suggest that the formerly reported calculations are not accurate enough.
KeywordGeneralized Oscillator-strengths Electron-impact Co Molecule Transitions Excitation (1)Sigma(+) Dependence (1)Pi
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/24575
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Ni, DD,Kang, X,Yang, K,et al. Squared form factors for the A(1)Pi and B-1 Sigma(+) vibronic bands of carbon monoxide studied by high-resolution inelastic x-ray scattering[J]. PHYSICAL REVIEW A,2015,91(4):—.
APA Ni, DD.,Kang, X.,Yang, K.,Liu, YW.,Mei, XX.,...&Zhu, LF.(2015).Squared form factors for the A(1)Pi and B-1 Sigma(+) vibronic bands of carbon monoxide studied by high-resolution inelastic x-ray scattering.PHYSICAL REVIEW A,91(4),—.
MLA Ni, DD,et al."Squared form factors for the A(1)Pi and B-1 Sigma(+) vibronic bands of carbon monoxide studied by high-resolution inelastic x-ray scattering".PHYSICAL REVIEW A 91.4(2015):—.
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