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Differential cross sections for fragmentation of positronium

✍ Scribed by H.R.J. Walters; C. Starrett; Mary T. McAlinden

Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
228 KB
Volume
247
Category
Article
ISSN
0168-583X

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✦ Synopsis

Cross sections differential with respect to energy and angle of ejected positrons and electrons for Ps(1s) fragmentation in collision with He, Ne, Ar, Kr and Xe targets are reported. For Ne, Ar, Kr and Xe, only the case where the target is not excited (target elastic collisions) is considered. For He, fragmentation with target excitation/ionization (target inelastic collisions) is also studied. The impulse approximation has been used for target elastic fragmentation, the first Born approximation for target inelastic processes.

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Differential cross sections for positron
Differential cross sections for positronium formation in positron–hydrogen scattering
✍ M.Z.M. Kamali; Kuru Ratnavelu πŸ“‚ Article πŸ“… 2008 πŸ› Elsevier Science 🌐 English βš– 171 KB

Positron scattering by hydrogen atom is an interesting system to test theoretical methods due to its simplicity. Recently, theoretical calculations have reported differential cross sections (DCS) for positronium (Ps) formation for this system. The present work utilises the coupled-channel optical me