Dipole and non-dipole excitation in collisions of low energy electrons with diatomic molecules

K. Becker, J. L. Forand, P. W. Zetner, J. W. McConkey

Research output: Contribution to journalArticle

Abstract

The authors have measured the rotational envelopes of selected vibrational bands of H2, D2, N2 and CO following excitation of cooled ( approximately 25K) gas beams. The observed broadening in N 2 and CO at low impact energies is attributed to a breakdown of the electric dipole rotational selection rule mod Delta J mod =1. No broadening is observed in H2 or D2.

Original languageEnglish (US)
Article number014
Pages (from-to)L915-L919
JournalJournal of Physics B: Atomic and Molecular Physics
Volume17
Issue number24
DOIs
StatePublished - 1984

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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