Multiphoton detachment from negative ions: new theory vs experiment

Details Multiphoton detachment from negative ions: new theory vs experiment Multiphoton detachment from negative ions: new theory vs experiment

1997-02-03

arxiv.org/abs/physics/9702003v1

Physics

Atomic Physics

9 pages, Latex, IOP style, and 3 figures fig1.ps, fig2.ps, fig3.ps, submitted to J. Phys. B

Scientific paper

10.1088/0953-4075/31/13/025

In this paper we compare the results of our adiabatic theory (Gribakin and Kuchiev, Phys. Rev. A, accepted for publication) with other theoretical and experimental results, mostly for halogen negative ions. The theory is based on the Keldysh approach. It shows that the multiphoton detachment rates and the corresponding n-photon detachment cross sections depend only on the asymptotic behaviour of the bound state radial wave function. The dependence on the exponent is very strong. This is the main reason for the disagreement with some previous calculations, which employed bound state wave functions with incorrect asymptotic forms. In a number of cases our theoretical results produces best agreement with absolute and relative experimental data.

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