Search Results - "Walters, H. R. J."

Antimatter Atomic Physics by Walters, H. R. J.

“…Positronium, the atom formed from an electron and a positron, is a gateway to very cold antihydrogen atoms and possibly a γ-ray laser. Positronium (Ps), the…”
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Unexpected higher-order effects in charged particle impact ionization at high energies by Foster, M, Peacher, J L, Schulz, M, Madison, D H, Chen, Zhangjin, Walters, H R J

“…Most of the experimental and theoretical studies of electron-impact ionization of atoms, referred to as (e, 2e), have concentrated on the scattering plane. The…”
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Scattering of Positronium by Atomic Hydrogen by Campbell, C. P., McAlinden, Mary T., MacDonald, F. G. R. S., Walters, H. R. J.

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Coincidence studies of electron impact ionization of atomic inner shells by Martinez, J., Whelan, C. T., Walters, H. R.J.

“… We consider (e,2e) processes on the 2s and 2p shells of argon and magnesium. We present triple differential cross sections in coplanar asymmetric geometry…”
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Differential and total cross sections for antiproton-impact ionization of atomic hydrogen and helium by McGovern, M., Assafrão, D., Mohallem, J. R., Whelan, Colm T., Walters, H. R. J.

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On the observation of the fine structure effect in non-relativistic (e, 2e) processes by KAMPP, M, KAWANO, S, ROCHE, P. J. P, RASCH, J, MADISON, D. H, WALTERS, H. R. J, WHELAN, C. T

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Physics. Antimatter atomic physics by Walters, H R J

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Effective collision strengths for 1s–2s and 1s–2p electron–hydrogen atom scattering by Scholz, T. T., Walters, H. R. J., Burke, P. G., Scott, M. P.

“…Extensive electron–hydrogen atom scattering calculations have recently been performed (Scott et al.) using a hybrid model which employs intermediate energy…”
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Differential ionization of a one-electron target under bare-ion impact: Application to proton-impact ionization of atomic hydrogen by Walters, H. R. J., Whelan, Colm T.

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Positron scattering by atoms by Walters, H R J, Kernoghan, Ann A, Mcalinden, Mary T, Campbell, C P

“…We describe the present status of coupled-state calculations for positron scattering by ‘one-electron’ atoms. We show how pseudostates are used to represent…”
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Fragmentation of positronium by Starrett, C., McAlinden, Mary T., Walters, H. R. J.

“…The impulse approximation is used to calculate cross sections for fragmentation of Ps(1s) in collision with He, Ne, Ar, Kr, and Xe. Triple, double, single, and…”
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Excited state positronium collisions with the noble gases by Starrett, C., Walters, H.R.J.

“…Calculations of the discrete positronium (Ps) transition Ps(2s) → Ps(2p) in collisions with the ground state noble gases helium, argon and xenon are presented…”
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Relativistic distorted-wave Born calculations for (e,2e) processes on inner shells of heavy atoms by Keller, S, Whelan, CT, Ast, H, Walters, HR, Dreizler, RM

“…The theory and numerical methods required for extending the distorted-wave Born approximation to the description of relativistic ([ital e],2[ital e]) processes…”
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Relativistic (e, 2e) collisions on atomic inner shells in symmetric geometry by WALTERS, H. R. J, AST, H, WHELAN, C. T, DREIZLER, R. M, GRAF, H, SCHRÖTER, C. D, BONFERT, J, NAKEL, W

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Excited state positronium collisions with helium by Starrett, C., Walters, H.R.J., McAlinden, Mary T.

“…Calculations of the discrete positronium (Ps) transition Ps(2s)→Ps(2p) in collisions with ground state helium are reported. Results are presented at total and…”
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Distorted-wave Born approximation calculations of (e, 2e) reactions by ZHANG, X, WHELAN, C. T, WALTERS, H. R. J

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Differential ionization of Li(2 s ) and Li(2 p ) under proton and O 8 + impact by Walters, H. R. J., Whelan, Colm T.

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Energy-sharing ( e , 2 e ) collisions: Ionization of the inert gases in the perpendicular plane by Miller, F. K., Walters, H. R. J., Whelan, Colm T.

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Ionization in positronium collisions with noble gases by Starrett, C., Walters, H.R.J.

“…Calculations are reported for ionizing collisions of Ps(1s) with He and Xe with emphasis on processes in which the target atom is excited/ionized. The results…”
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Electron impact ionization of the noble gases in coplanar symmetric geometry over the energy range 100 to 1000 eV by ZHANG, X, WHELAN, C. T, WALTERS, H. R. J

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