English

Convergent variational calculation of positronium-hydrogen-atom scattering lengths

Atomic Physics 2009-11-07 v2 Atomic and Molecular Clusters Chemical Physics

Abstract

We present a convergent variational basis-set calculational scheme for elastic scattering of positronium atom by hydrogen atom in S wave. Highly correlated trial functions with appropriate symmetry are needed for achieving convergence. We report convergent results for scattering lengths in atomic units for both singlet (=3.49±0.20=3.49\pm 0.20) and triplet (=2.46±0.10=2.46\pm 0.10) states.

Keywords

Cite

@article{arxiv.physics/0103036,
  title  = {Convergent variational calculation of positronium-hydrogen-atom scattering lengths},
  author = {Sadhan K. Adhikari and Puspajit Mandal},
  journal= {arXiv preprint arXiv:physics/0103036},
  year   = {2009}
}

Comments

11 pages, 1 postscript figure, Accepted in J. Phys. B (Letter)

R2 v1 2026-07-22T18:51:01.433Z