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Calculation of positronium compounds, PsLi, PsF, and PsCl, by second-order variational perturbation method

✍ Scribed by Shiro L. Saito

Publisher: Elsevier Science
Year: 1995
Tongue: English
Weight: 313 KB
Volume: 245
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(95)00954-3

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✦ Synopsis

Correlation, positron ionization, and positronium (Ps) binding energies for the ground state (2'1S) of PsLi, PsF, and PsCI together with the excited state (2.1p) of PsF and PsCI are calculated by the second-order variational perturbation method with partial wave expansion. Estimated positronium binding energies for PsLi(2'Is), PsF(2'IS), PsCI(2'IS), PsF(2'IP), and PsCI(2'Ip) are -2.19, 2.24, 1.62, -0.16, and -0.05 eV, respectively. The Ps binding energies of PsF(2'IS) and PsCI(2"1S) are in good agreement with the ones estimated by quantum Monte Carlo calculation and also with experimental ones.

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