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

Article

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

Živanov, S.; Allan, M.; Čížek, M.; Horáček, J.; Thiel, F. A.; Hotop, H.

Phys. Rev. Lett. 89, 073201-+ (2002)

Abstract

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.

Institute authors

Supported by

GACR 203/00/1025 — Resonance processes in small molecules
GACR 203/00/D111 — Generalisation of non-local resonance theory and calculation of cross sections for resonance processes in small molecules

BibTeX

@article{UTF120,
  author        = {Živanov, S. and Allan, M. and Čížek, M. and Horáček, J. and Thiel, F. A. and Hotop, H.},
  title         = {{Effects of Interchannel Coupling in Associative Detachment: Electron Spectra for H+Cl\textasciicircum{}\{-\} and H+Br\textasciicircum{}\{-\} Collisions}},
  journal       = {Phys. Rev. Lett.},
  volume        = {89},
  pages         = {073201-+},
  year          = {2002},
  doi           = {10.1103/PhysRevLett.89.073201},
  url           = {http://link.aps.org/abstract/PRL/v89/e073201},
}