Elastic scattering of positrons by xenon atoms

Elkilany, S. A.

doi:10.1007/bf02451598

Cited by 5 publications

(3 citation statements)

References 9 publications

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“…In Fig. 2 we also show the present results together with those of Choudhury and Sural [21] and Tiwari [22] in the energy range of 10 ≤ k 2 1 ≤ 200 keV. The results show that our values of total H(2s) formation cross sections are in good agreement with those of Choudhury and Sural [21] for incident energy range of 50 ≤ k 2 1 ≤ 200 keV, specially between 150 and 200 keV.…”

Section: Resultssupporting

confidence: 77%

“…Abdel-Raouf [1] investigated the collision of positrons by lithium and sodium atoms using the coupled static approximation. Elkilany [2][3][4][5] used the variational static approximation or iterative Green's function partial wave expansion method to obtain partial and total cross sections of elastic scattering of positron or electron by inert gas atoms. Surdutovitch et al [6] reported measurements of Ps formation cross sections for positron collision by lithium and sodium atoms.…”

Section: Introductionmentioning

confidence: 99%

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Formation of hydrogen atom in 2s state in proton–sodium inelastic scattering

Elkilany¹

2015

Chinese Phys. B

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The inelastic collision of protons with sodium atoms are treated for the first time within the framework of the coupled-static and frozen core approximations. The method is used for calculating partial and total cross-sections with the assumption that only two channels (elastic and hydrogen formation in 2s state) are open. In each case, the calculations are carried out for seven values of the total angular momentum ℓ(0 ≤ ℓ ≤ 6). The target is described using the Clementi Roetti wave functions within the framework of the one valence electron model. We use Lipmann–Swinger equation to solve the derived equations of the problem, then apply an iterative numerical method to obtain the code of computer to calculate iterative partial cross-sections. This can be done through calculating the reactance matrix at different values of considered energies to obtain the transition matrix that gives partial and total cross sections. The present results for total hydrogen (2s state) formation cross sections are in agreement with results of other available ones in wide range of incident energy.

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Section: Resultssupporting

confidence: 77%

Section: Introductionmentioning

confidence: 99%

Formation of hydrogen atom in 2s state in proton–sodium inelastic scattering

Elkilany¹

2015

Chinese Phys. B

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“…Theoretical calculations as well as experimental measurements have been carried out for ionization of and electron capture from alkali-metal atoms by proton impact [1,2]. Investigation of elastic scattering of positrons from noble gases using an iterative Green's function partial wave expansion formalism and a model static and polarization potentials are derived for describing the interactions of positrons with closed shell atoms [3,4]. The formation of excited hydrogen atom (H(2s)) in the process H + +Li → H(2s)+Li + has been studied only in low energy ranges.…”

Section: Introductionmentioning

confidence: 99%

Formation of 2s-State Hydrogen Atom in Proton-Lithium Inelastic Scattering

Elkilany

2014

Journal of Theoretical Chemistry

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Elaborate coupled static formalism is employed for treatment of proton-lithium collisions at wide range of incident energies between 10 and 1000 Kev. Coupled static and frozen core approximations are employed for calculating partial and total cross sections. Only elastic and formation of excited hydrogen, H(2s), channels are considered. Total cross sections are calculated using seven partial waves Green’s function expansion technique of total angular momentum ℓ (0≤ℓ≤6). Proposed iterative approach allows for reliable representation of the core potentials using elaborate variational calculation of target orbitals. Polarization potential of lithium atom is taken into consideration in calculating corresponding total cross sections. Quite interesting reliable results were obtained in comparison with other theoretical approaches.

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Elastic scattering of electrons by helium and neon atoms

Elkilany

1998

Nouv Cim D

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Elastic scattering of positrons by xenon atoms

Cited by 5 publications

References 9 publications

Formation of hydrogen atom in 2s state in proton–sodium inelastic scattering

Formation of hydrogen atom in 2s state in proton–sodium inelastic scattering

Formation of 2s-State Hydrogen Atom in Proton-Lithium Inelastic Scattering

Elastic scattering of electrons by helium and neon atoms

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