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2006 | 110 | 5 | 709-720
Article title

Electron-Positron Interaction in Jellium: Optimization of the Perturbed Hypernetted-Chain Approach

Content
Title variants
Languages of publication
EN
Abstracts
EN
The perturbed hypernetted-chain approach to electron-positron interaction in jellium consists in assuming the wave function of the system in the form of a Slater determinant built of single-electron functions presented asψi k(s)=w(s)φ_i k(s). s is the distance between the electron and the positron. The function w(s) is obtained by solving the equation of Gondzik and Stachowiak. The functionφ_{i k}(s) is computed by applying a self-consistent Born approximation. The idea of the paper is to modify the function w(s) in such a way as to obtain from the Born approximation as precise results as possible. It is shown that the influence of such modifications on physical predictions is small. This shows how good is the perturbed hypernetted-chain approach. The annihilation rates obtained in such a way decrease somewhat, becoming closer to experimental expectations.
Keywords
EN
Year
Volume
110
Issue
5
Pages
709-720
Physical description
Dates
published
2006-11
received
2006-06-05
References
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv110n519kz
Identifiers
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