Convergent variational calculation of positronium-hydrogen-atom scattering lengths
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Data
2001-03-28
Autores
Adhikari, S. K.
Mandal, P.
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Iop Publishing Ltd
Resumo
We present a convergent variational basis-set calculational scheme for elastic scattering of the positronium atom by the hydrogen atom in S wave. Highly correlated trial functions with appropriate symmetry are needed to achieve convergence. We report convergent results for scattering lengths in atomic units for both singlet (= 3.49 +/-0.20) and triplet (= 2.46 +/-0.10) states.
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Journal of Physics B-atomic Molecular and Optical Physics. Bristol: Iop Publishing Ltd, v. 34, n. 6, p. L187-L194, 2001.