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Calculated scattering length for spin-polarized metastable helium

Lookup NU author(s): Professor Alan Dickinson

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Abstract

A set of new ab initio potentials were produced to investigate the convergence and reliability of the scattering length for spin-polarized metastable helium. In addition, a dummy basis set which introduces a spurious behavior in the potential was demonstrated and should thus be avoided for the estimation of global observables like the scattering length. It was shown that a semiclassical analysis of the scattering length calculation have a huge sensitivity which was related to the action integral going through a critical value for the appearance of the fifteenth vibrational level, where a divergence occurs in the scattering length.

Publication metadata

Author(s): Dickinson AS; Gadea FX; Leininger T

Publication type: Article

Publication status: Published

Journal: Journal of Chemical Physics

Year: 2002

Volume: 117

Issue: 15

Pages: 7122-7127

ISSN (print): 0021-9606

ISSN (electronic): 1089-7690

Publisher: American Institute of Physics

URL: http://dx.doi.org/10.1063/1.1494062

DOI: 10.1063/1.1494062

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