DOI: 10.1063/1.1677067. Positronium Annihilation in Molecular Substances

Positronium Annihilation in Molecular Substances

10.1063/1.1677067

Crossref journal-article

AIP Publishing

The Journal of Chemical Physics (317)

Abstract

The behavior of the Ps atom in molecular substances, particularly liquids, is investigated. The pickoff rates of o-Ps in various liquid compounds are found to have a simple empirical relationship to the values of the surface tension of the liquids. The relationship is found to have a theoretical foundation. The Ps atom is highly localized in a cavity created by the balance of various molecular forces inside the liquid. From the above relationship, other simple relationships between the pickoff rates of o-Ps and the various properties of the medium, e.g., polarizability, cohesive energy density, etc., and the temperature or pressure changes can be derived and explained. The diffusion of o-Ps is discussed. A similar approach can also be used for molecular solids.

Bibliography

Tao, S. J. (1972). Positronium Annihilation in Molecular Substances. The Journal of Chemical Physics, 56(11), 5499â5510.

Authors 1

S. J. Tao (first)

References 54 Referenced 1,848

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Dates

Type	When
Created	21 years, 7 months ago (Feb. 6, 2004, 3:25 p.m.)
Deposited	1 year, 6 months ago (Feb. 9, 2024, 5:04 a.m.)
Indexed	12 hours, 8 minutes ago (Sept. 6, 2025, 4:25 p.m.)
Issued	53 years, 3 months ago (June 1, 1972)
Published	53 years, 3 months ago (June 1, 1972)
Published Print	53 years, 3 months ago (June 1, 1972)

Funders 0

None

BibTeX

@article{Tao_1972, title={Positronium Annihilation in Molecular Substances}, volume={56}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.1677067}, DOI={10.1063/1.1677067}, number={11}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Tao, S. J.}, year={1972}, month=jun, pages={5499–5510} }

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