Trajectory calculations of two-dimensional Penning ionization electron spectra of N2 in collision with metastable He* 23S atoms

Koichi Ohno, Masakazu Yamazaki, Naoki Kishimoto, Tetsuji Ogawa, Kouichi Takeshita

Research output: Contribution to journalArticle

11 Citations (Scopus)


Ionization cross-sections of N2 in collision with He*23S as functions of the collision energy and the ejected electron kinetic energy (two-dimensional Penning ionization electron spectra, 2D-PIES) have been evaluated by trajectory calculations based on quantum chemical potential surfaces of both entrance and exit channels as well as on the transition widths for producing X, A, and B states of N2+. The present approach using a Li atom for He* and an overlap approximation for Γ has given theoretical 2D-PIES in good agreement with the observation and a promise for its application to the study of dynamics in collisional ionization involving highly anisotropic target systems.

Original languageEnglish
Pages (from-to)167-174
Number of pages8
JournalChemical Physics Letters
Issue number1-2
Publication statusPublished - 2000 Dec 15

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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