Direct and precise mapping of intramolecular H-atom motion in H2 by an electron-atom Compton scattering experiment

Yuichi Tachibana, Yuuki Onitsuka, Hirohiko Kono, and Masahiko Takahashi
Phys. Rev. A 105, 052813 – Published 31 May 2022
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Abstract

We report an electron-atom Compton scattering experiment on the H2 molecule. The momentum distribution of the H atom due to intramolecular motion was obtained by using a protocol developed for the data analysis. Furthermore, it is shown that the experimental result agrees well with associated calculations based on quantum chemistry theory. This indicates not only the validity of the protocol but also the feasibility of use of the experiment as an unconventional molecular spectroscopy, opening the door to direct and precise mapping of intramolecular motion of each atom with different masses.

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  • Received 16 April 2022
  • Accepted 16 May 2022

DOI:https://doi.org/10.1103/PhysRevA.105.052813

©2022 American Physical Society

Physics Subject Headings (PhySH)

  1. Research Areas
Electron & positron scattering
  1. Physical Systems
Molecules
  1. Techniques
Quantum chemistry methodsSpectroscopy
Atomic, Molecular & Optical

Authors & Affiliations

Yuichi Tachibana1, Yuuki Onitsuka1, Hirohiko Kono2, and Masahiko Takahashi1,*

  • 1Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
  • 2Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan

  • *masahiko@tohoku.ac.jp

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Vol. 105, Iss. 5 — May 2022

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