Adhikari, S. K. [UNESP]2014-05-272014-05-272001-05-01Physical Review A. Atomic, Molecular, and Optical Physics, v. 63, n. 5, p. 545021-545024, 2001.1050-2947http://hdl.handle.net/11449/130667A time reversal symmetric regularized electron exchange model was used to elastic scattering, target elastic Ps excitations and target inelastic excitation of hydrogen in a five state coupled model. A singlet Ps-H-S-wave resonance at 4.01 eV of width 0.15 eV and a P-wave resonance at 5.08 eV of width 0.004 eV were obtained using this model. The effect on the convergence of the coupled-channel scheme due to the inclusion of the excited Ps and H states was also analyzed.545021-545024engBinding energyElectromagnetic wave propagationElectron energy levelsElectron scatteringElectron transitionsHydrogenMathematical modelsPartial differential equationsPhase shiftPositronsResonanceHydrogen atom scatteringPositroniumAtomic physicsArtigo10.1103/PhysRevA.63.054502WOS:000168589100125Acesso restrito2-s2.0-00353310928031087349809439