5 papers
direct annihilation above the positronium formation threshold
C-. Y. Hu, D. Caballero, A. Forrester +1
A long-standing problem with the solution of the Schrödinger equation has been its inability to account for the electron-positron annihilation in positron hydrogen scattering above…
Multichannel scattering on excited Ps states
Z. Papp, D. Caballero, C-. Y. Hu
Scattering and reaction cross sections of system are calculated for total angular momentum L=0, 1 and 2 and energies between the Ps(n=2)-Ps(n=3) threshold. We solved a…
Resonant-state solution of the Faddeev-Merkuriev integral equations for three-body systems with Coulomb-like potentials
Z. Papp, S. L. Yakovlev, C-. Y. Hu +3
A novel method for calculating resonances in three-body Coulombic systems is presented. The Faddeev-Merkuriev integral equations are solved by applying the Coulomb-Sturmian separab…
The three-body Coulomb scattering problem in discrete Hilbert-space basis representation
Z. Papp, S. L. Yakovlev
For solving the three-body Coulomb scattering problem the Faddeev-Merkuriev integral equations in discrete Hilbert-space basis representation are considered. It is shown…
Compactness of the set of Faddeev and Lippmann--Schwinger equations for the three-body Coulomb problem
Z. Papp
The set of Faddeev and Lippmann--Schwinger integral equations for three-body systems involving Coulomb interactions deduced from a ``three-potential'' picture are shown to be compa…