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A classical cross-section calculation for Penning ionization with multi-exit channels. N2He*(2 3S)→N+2 (2Σg, 2Πu, 2Σu) +He+e−

✍ Scribed by Toshimasa Ishida

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 446 KB
Volume: 211
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(93)80042-n

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✦ Synopsis

The N,He*( 2 'S) -+N: ('2, *Tl., *Z,) + He+e-cross section is calculated within the sudden approximation, based on ab mttlo potentials and widths. The classical formula is extended to multi-exit channel systems and used. The cross sections for the ionizations which produce Z states are larger than the I'l ionization cross section at low energies, whereas the ll cross section increases faster, and exceeds the Z cross sections at high energies. The results are in qualitative agreement with the experimental energy dependence of the partial cross sections.

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✍ Toshimasa Ishida 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 488 KB

Ab initio calculations are performed for the system Nz-He\*(2 'S) -+N: (%,, 'II,,, 'Z,)+He+e-. Potential curves are calculated for the entrance resonance state and the exit ionized states. An energy width for each ionization is also calculated. It is found that energy widths are governed by the ove