Threshold photodetachment in a repulsive potential
Atomic Physics
2012-09-03 v1
Abstract
We report on the first experimental observation of a new threshold behavior observed in the 5g partial channel in photodetachment of K-. It arises from the repulsive polarization interaction between the detached electron and the residual K(5g) atom, which has a large negative dipole polarizability. In order to account for the observation in the K(5g) channel, we have developed a semiclassical model that predicts an exponential energy dependence for the cross section. The measurements were made with collinear laser-ion beams and a resonance ionization detection scheme.
Keywords
Cite
@article{arxiv.1208.6440,
title = {Threshold photodetachment in a repulsive potential},
author = {Anton O. Lindahl and Johan Rohlén and Hannes Hultgren and Igor Yu. Kiyan and David J. Pegg and C. Wesley Walter and Dag Hanstorp},
journal= {arXiv preprint arXiv:1208.6440},
year = {2012}
}