<span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi mathvariant="italic">K</mi></math></span>-Shell Photodetachment of <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi>Li</mi></mrow><mrow><mo>−</mo></mrow></msup></mrow></math></span>: Experiment and Theory

N. Berrah; J. D. Bozek; A. A. Wills; G. Turri; H.-L. Zhou; S. T. Manson; G. Akerman; B. Rude; N. D. Gibson; C. W. Walter; L. VoKy; A. Hibbert; S. M. Ferguson

doi:10.1103/PhysRevLett.87.253002

$K$ -Shell Photodetachment of ${Li}^{-}$ : Experiment and Theory

N. Berrah, J. D. Bozek, A. A. Wills, G. Turri, H.-L. Zhou, S. T. Manson, G. Akerman, B. Rude, N. D. Gibson, C. W. Walter, L. VoKy, A. Hibbert, and S. M. Ferguson

Phys. Rev. Lett. 87, 253002 – Published 3 December 2001

Abstract

An experimental $K$ -shell photodetachment study of ${Li}^{-}$ giving rise to doubly photoionized ${Li}^{+}$ ions has been carried out at the Advanced Light Source, using a collinear photon-ion beam apparatus. The experiment reveals dramatic structure, differing substantially both qualitatively and quantitatively from the corresponding processes above the $1 s$ ionization threshold in Li and ${Li}^{+}$ , as predicted by our enhanced $R$ -matrix calculation. The experimental/theoretical comparison shows good agreement over some of the photon energy range, and also reveals some puzzling discrepancies.

Received 2 May 2001

DOI:https://doi.org/10.1103/PhysRevLett.87.253002

Authors & Affiliations

N. Berrah¹, J. D. Bozek², A. A. Wills¹, G. Turri^1,2, H.-L. Zhou³, S. T. Manson³, G. Akerman², B. Rude², N. D. Gibson⁴, C. W. Walter⁴, L. VoKy⁵, A. Hibbert⁶, and S. M. Ferguson¹

¹Western Michigan University, Physics Department, Kalamazoo, Michigan 49008
²Lawrence Berkeley National Laboratory, Advanced Light Source, Berkeley, California 94720
³Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30309
⁴Department of Physics and Astronomy, Denison University, Granville, Ohio 43023
⁵DAMAP, UMR 8588 du CNRS, Observatoire de Paris 92195, Meudon Cedex, France
⁶Queen's University of Belfast, Belfast, BT7 1NN, United Kingdom