On the dynamics of electron detachment in halogen negative-ion-inert-gas collisions
- 28 April 1981
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 14 (8) , 1303-1314
- https://doi.org/10.1088/0022-3700/14/8/015
Abstract
A differential energy-loss study of electron detachment in Br- and I--inert-gas collisions in the 250 to 2000 eV laboratory energy range has been performed. Differential cross sections for elastic scattering, simple detachment (X+B+e-)and detachment accompanied by excitation processes (X*+B+e-) are reported. These measurements show the importance of dynamic effects in the simple detachment process. An interesting impact parameter dependence of the energy spectra of electrons detached in the simple detachment process is observed. The close analogy of the energy dependence of the elastic cross sections in these collisions and in H--inert-gas collisions suggests that here also direct 'tunnelling' transitions into the continuum play an important role.Keywords
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