Convergent variational calculation of positronium-hydrogen-atom scattering lengths

Details Convergent variational calculation of positronium-hydrogen-atom scattering lengths Convergent variational calculation of positronium-hydrogen-atom scattering lengths

2001-03-13

arxiv.org/abs/physics/0103036v2

J. Phys. B 34 (2001) L187-L194

Physics

Atomic Physics

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

Scientific paper

10.1088/0953-4075/34/6/106

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 ($=3.49\pm 0.20$) and triplet ($=2.46\pm 0.10$) states.

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