Near-threshold vibrational excitation of H{sub 2} by electron impact: An ab initio study

Journal Article · Sat May 01 00:00:00 EDT 1993 · Bulletin of the American Physical Society

OSTI ID:281327

Rescigno, T N; Elza, B K; Lengsfield, III, B H ^[1]

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1. Lawrence Livermore National Laboratory, CA (United States)

We present the results of a fully ab initio treatment of vibrational excitation of H{sub 2} by low-energy electron impact. The calculations are based on a variational treatment closely related to the complex Kohn method and employ a trial wave function that uses an accurate, correlated target state and exact vibrational wave functions. Non-adiabatic vibrational effects are incorporated by using and off-shell T-matrix formalism. Our cross sections are in good agreement with recent crossed-beam measurements and are substantially larger than the values deduced from swarm data.

• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 281327
• Report Number(s): CONF-9305421--
• Journal Information: Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 3 Vol. 38; ISSN BAPSA6; ISSN 0003-0503
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CROSS SECTIONS
ELECTRON-MOLECULE COLLISIONS
EXCITATION
HYDROGEN
VIBRATIONAL STATES