Issue 33, 2022

Asymptotic behavior of the electron-atom Compton profile due to the intramolecular H-atom motion in H2

Abstract

We report the asymptotic behavior of the electron-atom Compton profile due to the intramolecular H-atom motion in H2. The experiment has been performed at a scattering angle of 135° and at incident electron energies from 1.0 to 2.2 keV, thus covering a momentum transfer (K) range from 15.8 to 23.5 a.u. It is shown that with the increase in K, the Compton profile changes in shape and becomes more symmetric. Furthermore, it is found that the experiment reaches the limit of sufficiently large K at an incident electron energy of 2.0 keV, where the plane-wave impulse approximation is applicable to directly relate the Compton profile to the momentum distribution of the H atom.

Graphical abstract: Asymptotic behavior of the electron-atom Compton profile due to the intramolecular H-atom motion in H2

Article information

Article type
Paper
Submitted
31 5 2022
Accepted
24 6 2022
First published
06 7 2022

Phys. Chem. Chem. Phys., 2022,24, 19716-19721

Asymptotic behavior of the electron-atom Compton profile due to the intramolecular H-atom motion in H2

Y. Onitsuka, Y. Tachibana and M. Takahashi, Phys. Chem. Chem. Phys., 2022, 24, 19716 DOI: 10.1039/D2CP02461F

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