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Low energy scattering of positrons by H2O
(Elsevier Science BvAmsterdamHolanda, 2010)
CDW theoretical description of the single ionization of argon by positron and electron impact
(Elsevier Science, 2007-08)
In this work, we consider the single ionization of Ar by 200 eV positron and electron impact. The quantum mechanical continuum distorted wave (CDW) model is used in the one-active electron approximation. Parametrizations ...
Near threshold vibrational excitation of molecules by positron impact: A projection operator approach
(ELSEVIER SCIENCE BV, 2008)
We report vibrational excitation (v(i) = 0 -> v(f) = 1) cross-sections for positron scattering by H(2) and model calculations for the (v(i) = 0 -> v(f) = 1) excitation of the C-C symmetric stretch mode of C(2)H(2). The ...
Theory of ionization processes in positron-atom collisions
(Elsevier Science, 2006-12)
We review past and present theoretical developments in the description of ionization processes in positron-atom collisions. Starting from an analysis that incorporates all the interactions in the final state on an equal ...
A smoking gun evidence on the dynamics of the continuum electron-positron-proton three-body system
(Iop Publishing, 2012-04)
Researchers from the Bariloche Atomic Centre in Argentina have recently proposed to study the ionization of an atom by the impact of a positron, not by the standard approach of analysing the velocity spectra of the emitting ...
Differential cross sections for elastic and inelastic positronium-hydrogen-atom scattering
(American Physical Soc, 2001-05-01)
A time reversal symmetric regularized electron exchange model was used to elastic scattering, target elastic Ps excitations and target inelastic excitation of hydrogen in a five state coupled model. A singlet Ps-H-S-wave ...
Differential cross sections for elastic and inelastic positronium-hydrogen-atom scattering
(American Physical Soc, 2014)