Phys. Rev. A 61, 032710 (2000) [5 pages]Phase shifts of e-+Ps scatterings and photodetachment cross sections of Ps-Received 10 May 1999; revised 20 September 1999; published 14 February 2000 The close-coupling method is applied to the Ps- system. The scattering phase shifts of e-+Ps scatterings and the photodetachment cross sections of Ps- are calculated below the first excitation threshold. The scattering equations are solved using a B-spline method. Well converged phase shifts are obtained for s-, p- and d-orbital expansions. The photodetachment cross sections are in good convergence and are nearly gauge invariant. © 2000 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.61.032710
DOI:
10.1103/PhysRevA.61.032710
PACS:
34.80.Bm, 36.10.Dr
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