Phys. Rev. A 70, 042507 (2004) [4 pages]Effects of configuration interaction on photoabsorption spectra in the continuumReceived 15 July 2004; published 22 October 2004 It is pointed out that the proper interpretation of a recently published experimental spectrum from the multilaser photoionization of Sr Eichmann et al. Phys. Rev. Lett. 90 233004 (2003) must account for a radiative transition between two autoionizing states. The application of orthonormality selection rules and of configuration-interaction theory involving the continuous spectrum and the quasicontinuum of the upper part of Rydberg series explains quantitatively the appearance, the shape, and the variation of heights of the observed peaks of resonances. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.70.042507
DOI:
10.1103/PhysRevA.70.042507
PACS:
32.70.−n, 32.30.Jc, 32.80.Rm
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