Photodetachment study of the 1s3s4s ^4S resonance in He^-
Atomic Physics
2009-10-30 v2
Abstract
A Feshbach resonance associated with the 1s3s4s ^{4}S state of He^{-} has been observed in the He(1s2s ^{3}S) + e^- (\epsilon s) partial photodetachment cross section. The residual He(1s2s ^{3}S) atoms were resonantly ionized and the resulting He^+ ions were detected in the presence of a small background. A collinear laser-ion beam apparatus was used to attain both high resolution and sensitivity. We measured a resonance energy E_r = 2.959 255(7) eV and a width \Gamma = 0.19(3) meV, in agreement with a recent calculation.
Keywords
Cite
@article{arxiv.physics/9703011,
title = {Photodetachment study of the 1s3s4s ^4S resonance in He^-},
author = {Andreas E. Klinkmueller and Gunnar Haeffler and Dag Hanstorp and Igor Yu. Kiyan and Uldis Berzinsh and Christopher W. Ingram and David J. Pegg and James R. Peterson},
journal= {arXiv preprint arXiv:physics/9703011},
year = {2009}
}
Comments
LaTeX article, 4 pages, 3 figures, 21 references