Trapping of positronium in a size-dependent spherical square well potential

Autor:	Charles Dauwe, N. Balcaen, Danny Segers, S. Van Petegem
Rok vydání:	2000
Předmět:	Physics Radiation Size dependent Finite potential well Trapping Radius Atomic physics Potential energy Scaling Energy (signal processing) Positronium
Zdroj:	Radiation Physics and Chemistry. 58:681-685
ISSN:	0969-806X
DOI:	10.1016/s0969-806x(00)00239-5
Popis:	The real trapping potential energy U ( r ) of positronium in vacancy-type holes and self-sustaining bubbles in liquids is replaced by a spherical square well potential of finite energy depth U m and the scaling procedure proposed by Yu et al. is applied. Available data for the ortho -positronium lifetime in molecular crystals and in liquids are re-examined and a unique relation is found between the potential energy depth U m and the calculated radius R of the trapping site. The general form of a surface-enhanced real potential energy U ( r ) which is compatible with the behaviour of U m is proposed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::648537140918b770a23c2f6e384464f4 https://doi.org/10.1016/s0969-806x(00)00239-5 Zobrazit plný text záznamu Full Text from ScienceDirect