Quantum scattering equations for non-adiabatic transitions in collisions between a hund case (c) diatomic molecule and a structureless atom with application to I2(E0g+) + AR

T. V. Tscherbul, A. A. Buchachenko

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12 Citations (Scopus)

Abstract

Time-independent quantum scattering close coupled equations are derived for non-adiabatic collisions involving a Hund case (c) diatomic molecule and a structureless particle. Infinite-order sudden and/or exponential distorted wave approximations are introduced to reduce the size of the system of close-coupled equations. The theory developed is applied to the study of non-adiabatic transitions between the first-tier ion-pair electronic states of an iodine molecule in collisions with Ar atoms. Calculations of cross sections and rate constants indicate the necessity of the close-coupling treatment of the vibronic channels and provide qualitative agreement with available experimental data.

Original languageEnglish
Pages (from-to)1605-1619
Number of pages15
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume37
Issue number8
DOIs
Publication statusPublished - 28 Apr 2004
Externally publishedYes

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