Differential cross sections for elastic and inelastic positronium-hydrogen-atom scattering
Atomic Physics
2009-11-06 v1 Atomic and Molecular Clusters
Chemical Physics
Abstract
We report results of differential cross sections for elastic scattering, target-elastic Ps excitations and target-inelastic excitation of hydrogen in a five-state coupled-channel model allowing for Ps(1s)H(2s,2p) and Ps(2s,2p)H(1s) excitations using a recently proposed time-reversal-symmetric regularized electron-exchange model potential. The present model yields 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. We also study the effect of the inclusion of the excited Ps and H states on the convergence of the coupled-channel scheme.
Cite
@article{arxiv.physics/0012040,
title = {Differential cross sections for elastic and inelastic positronium-hydrogen-atom scattering},
author = {Sadhan K. Adhikari},
journal= {arXiv preprint arXiv:physics/0012040},
year = {2009}
}
Comments
9 pages, 6 ps figures, Accepted in Phys. Rev. A