Coupled-static calculations of the partial and total cross sections of positron-lithium inelastic scattering

M. A. Abdel-Raouf; S. Y. El-Bakry; A. H. Moussa; M. El-Shabshiri

doi:10.1007/BF01605393

Coupled-static calculations of the partial and total cross sections of positron-lithium inelastic scattering

M. A. Abdel-Raouf, S. Y. El-Bakry, A. H. Moussa, M. El-Shabshiri

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Abstract

The inelastic scattering of positrons by lithium atoms has been investigated in details using a combination of the frozen-core and coupled-static approximations. The ground state of the target has been described by Walters' wave functions. The partial cross sections corresponding to 8 values of the total angular momentum l (0≦l≦7) are determined for 21 values of the incident energy lying between 0·1 and 1000 eV. Our results illustrate the stability of the iterative numerical technique employed. They demonstrate the role played by each partial wave in the total cross sections and emphasize the argument that the effect of positronium formation on the total collisional cross sections diminishes when the incident energy is larger than 30 eV.

Original language	English
Pages (from-to)	1066-1088
Number of pages	23
Journal	Czechoslovak Journal of Physics
Volume	39
Issue number	10
DOIs	https://doi.org/10.1007/BF01605393
Publication status	Published - Oct 1989
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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title = "Coupled-static calculations of the partial and total cross sections of positron-lithium inelastic scattering",

abstract = "The inelastic scattering of positrons by lithium atoms has been investigated in details using a combination of the frozen-core and coupled-static approximations. The ground state of the target has been described by Walters' wave functions. The partial cross sections corresponding to 8 values of the total angular momentum l (0≦l≦7) are determined for 21 values of the incident energy lying between 0·1 and 1000 eV. Our results illustrate the stability of the iterative numerical technique employed. They demonstrate the role played by each partial wave in the total cross sections and emphasize the argument that the effect of positronium formation on the total collisional cross sections diminishes when the incident energy is larger than 30 eV.",

author = "Abdel-Raouf, {M. A.} and El-Bakry, {S. Y.} and Moussa, {A. H.} and M. El-Shabshiri",

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T1 - Coupled-static calculations of the partial and total cross sections of positron-lithium inelastic scattering

AU - Abdel-Raouf, M. A.

AU - El-Bakry, S. Y.

AU - Moussa, A. H.

AU - El-Shabshiri, M.

PY - 1989/10

Y1 - 1989/10

N2 - The inelastic scattering of positrons by lithium atoms has been investigated in details using a combination of the frozen-core and coupled-static approximations. The ground state of the target has been described by Walters' wave functions. The partial cross sections corresponding to 8 values of the total angular momentum l (0≦l≦7) are determined for 21 values of the incident energy lying between 0·1 and 1000 eV. Our results illustrate the stability of the iterative numerical technique employed. They demonstrate the role played by each partial wave in the total cross sections and emphasize the argument that the effect of positronium formation on the total collisional cross sections diminishes when the incident energy is larger than 30 eV.

AB - The inelastic scattering of positrons by lithium atoms has been investigated in details using a combination of the frozen-core and coupled-static approximations. The ground state of the target has been described by Walters' wave functions. The partial cross sections corresponding to 8 values of the total angular momentum l (0≦l≦7) are determined for 21 values of the incident energy lying between 0·1 and 1000 eV. Our results illustrate the stability of the iterative numerical technique employed. They demonstrate the role played by each partial wave in the total cross sections and emphasize the argument that the effect of positronium formation on the total collisional cross sections diminishes when the incident energy is larger than 30 eV.

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Coupled-static calculations of the partial and total cross sections of positron-lithium inelastic scattering

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