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APS » Journals » Phys. Rev. Lett. » Volume 89 » Issue 7
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Phys. Rev. Lett. 89, 073201 (2002) [4 pages]

Effects of Interchannel Coupling in Associative Detachment: Electron Spectra for H+Cl- and H+Br- Collisions

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S. Živanov and M. Allan
Department of Chemistry, University of Fribourg, Chemin du Musée 9, 1700 Fribourg, Switzerland

M. Čížek and J. Horáček
Institute of Theoretical Physics, Faculty of Mathematics and Physics, Charles University Prague, V Holešovičkách 2, 180 00 Praha 8, Czech Republic

F. A. U. Thiel and H. Hotop
Department of Physics, University of Kaiserslautern, D-67653 Kaiserslautern, Germany

Received 6 April 2002; published 30 July 2002

We present experimental and theoretical energy spectra of the electrons detached in collisions of slow Cl- and Br- ions with atomic hydrogen. Nonlocal resonance theory predicts two kinds of features in the spectra: steplike structures associated with rovibrational onsets and steep rises associated with interchannel coupling, the latter being absent in a calculation using the simpler local-complex potential theory. Our experimental spectra confirm the presence of both types of structures and thus the necessity of including interchannel coupling to properly describe the product-state distribution.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.89.073201
DOI:
10.1103/PhysRevLett.89.073201
PACS:
34.80.Gs
 
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