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Merkuriev Cut-off in e+ H Multichannel Scattering Calculations

Saint Petersburg State University, 1 Ulyanovskaya str., Petrodvorets, Saint Petersburg 198504, Russia
These authors contributed equally to this work.
Author to whom correspondence should be addressed.
Academic Editors: Chi Yu Hu and Anand K. Bhatia
Received: 9 December 2015 / Revised: 17 February 2016 / Accepted: 22 February 2016 / Published: 1 March 2016
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We present the results of positron-Hydrogen multichannel scattering calculations performed on the base of Faddeev-Merkuriev equations. We discuss an optimal choice of the Merkuriev’s Coulomb splitting parameters. Splitting the Coulomb potential in two-body configuration space is applicable for a limited energy range. Splitting the potential in three-body configuration space makes it possible to perform calculations in a broader range of energies and to optimize the numerical convergence. Scattering cross sections for zero total angular momentum for all processes between the positronium formation threshold and the third excitation threshold of the Hydrogen atom are reported. View Full-Text
Keywords: multichannel quantum scattering theory; Faddeev-Merkuriev equations; positron multichannel quantum scattering theory; Faddeev-Merkuriev equations; positron

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Gradusov, V.A.; Roudnev, V.A.; Yakovlev, S.L. Merkuriev Cut-off in e+ H Multichannel Scattering Calculations. Atoms 2016, 4, 9.

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