Vibrationally resolved capture cross section in p +H 2 collision

A. Igarashi, L. Gulyás

Research output: Contribution to journalArticle

Abstract

The electron-capture process p + H2 H(1s) + H+2 (1ss) is described using distorted-wave-Born models by considering the influence of the vibrational motions of H2 and H2 + within the framework of the Born-Oppenheimer approximation. Non-dissociative and dissociative capture cross sections are calculated for incident proton energies EC=20-300 keV. The vibrational distribution of H+2 (1ss) is compared with that of the Franck-Condon factor. They are in fairly good agreement for EC < 100 keV, and discrepancies arise for higher EC.

Original languageEnglish
Article number075204
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume52
Issue number7
DOIs
Publication statusPublished - Mar 14 2019

Fingerprint

Born-Oppenheimer approximation
proton energy
electron capture
absorption cross sections
collisions

Keywords

  • cross section
  • electron capture
  • ion impact

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

Cite this

Vibrationally resolved capture cross section in p +H 2 collision . / Igarashi, A.; Gulyás, L.

In: Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 52, No. 7, 075204, 14.03.2019.

Research output: Contribution to journalArticle

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AB - The electron-capture process p + H2 H(1s) + H+2 (1ss) is described using distorted-wave-Born models by considering the influence of the vibrational motions of H2 and H2 + within the framework of the Born-Oppenheimer approximation. Non-dissociative and dissociative capture cross sections are calculated for incident proton energies EC=20-300 keV. The vibrational distribution of H+2 (1ss) is compared with that of the Franck-Condon factor. They are in fairly good agreement for EC < 100 keV, and discrepancies arise for higher EC.

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