Journal ArticleDOI
Electrons and photons colliding with atoms: development and application of the convergent close-coupling method
TLDR
In this article, a solution of a small-model three-body problem, using the convergent close-coupling method, has led to numerous applications involving real atomic collision systems.Abstract:
The substantial progress that has occurred during the 1990s in the field of electron-atom-collision theory is discussed. We show how a solution of a small-model three-body problem, using the convergent close-coupling method, has led to numerous applications involving real atomic collision systems. Consequently many fundamental electron-atom collision processes are considered as 'solved', and accurate collision data of interest to science and industry have become available. However, we suggest that the present has only just seen the birth of modern atomic collision theory. There are many more important collision problems to be tackled, with guidance coming from experiment being as important as ever.read more
Citations
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Journal ArticleDOI
Electron–molecule collision calculations using the R-matrix method
TL;DR: The R-matrix method is an embedding procedure which is based on the division of space into an inner region where the physics is complicated and an outer region for which greatly simplified equations can be solved.
Journal ArticleDOI
21-cm fluctuations from inhomogeneous X-ray heating before reionization
TL;DR: In this paper, the authors developed a framework for calculating fluctuations in the 21-cm brightness temperature that originate from this spatial variation in the heating rate, and disentangled temperature, density and Lyα flux fluctuations as functions of redshift.
Journal ArticleDOI
Electron impact dissociation of oxygen-containing molecules A critical review
J. W. McConkey,J. W. McConkey,Charles P. Malone,Paul V. Johnson,C. Winstead,Vincent McKoy,Isik Kanik +6 more
TL;DR: In this article, a wide range of oxygen-containing molecules following impact with electrons of carefully controlled energy is critically reviewed, ranging from diatomics, like O_2 and CO, to large molecules of biological and technological interest.
Journal ArticleDOI
The B-spline R-matrix method for atomic processes: application to atomic structure, electron collisions and photoionization
Oleg Zatsarinny,Klaus Bartschat +1 more
TL;DR: In this article, the basic ideas of the B-spline R-matrix approach are reviewed, and the use of the method is illustrated with a variety of applications to atomic structure, electron?atom collisions and photo-induced processes.
Journal ArticleDOI
The time-dependent close-coupling method for atomic and molecular collision processes
M. S. Pindzola,Francis Robicheaux,Stuart Loch,Julian C. Berengut,Turker Topcu,James Colgan,M. Foster,D. C. Griffin,Connor Ballance,David R. Schultz,Tatsuya Minami,N. R. Badnell,M. C. Witthoeft,D. R. Plante,Dario Marcelo Mitnik,J. A. Ludlow,Ulrich Kleiman +16 more
TL;DR: In this paper, the development of the time-dependent close-coupling method to study atomic and molecular few body dynamics is reviewed, and applications include electron and photon collisions with atoms, molecules, and their ions.
References
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Book ChapterDOI
The R-Matrix Theory of Atomic Processes
Philip G. Burke,W. D. Robb +1 more
TL;DR: The R-matrix concept of atomic processes was first introduced by Wigner and Eisenbud as mentioned in this paper with the fundamental idea that configuration space describes the scattered particle, and the target is divided into two regions.
Journal ArticleDOI
Collisional alignment and orientation of atomic outer shells I. Direct excitation by electron and atom impact
Nils Andersen,Nils Andersen,Jean W. Gallagher,Jean W. Gallagher,Ingolf V. Hertel,Ingolf V. Hertel +5 more
Journal ArticleDOI
Convergent close-coupling calculations of electron-hydrogen scattering.
Igor Bray,Andris T. Stelbovics +1 more
TL;DR: This work presents convergent elastic, 2s, and 2p differential cross sections, spin asymmetries, and angular-correlation parameters for the 2p excitation at 35, 54.4, and 100 eV.
Journal ArticleDOI
Collisional Breakup in a Quantum System of Three Charged Particles
TL;DR: A framework for solving ionization problems in many areas of chemistry and physics is finally provided by a mathematical transformation of the Schrodinger equation that makes the final state tractable, providing the key to a numerical solution of this problem that reveals its full dynamics.
Journal ArticleDOI
Calculation of electron-helium scattering.
Dmitry V. Fursa,Igor Bray +1 more
TL;DR: Generally, good agreement with experiment is obtained with the available differential, integrated, ionization, and total cross sections, as well as with the electron-impact coherence parameters up to and including the 3 {sup 3}{ital D}-state excitation.
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Collisional Breakup in a Quantum System of Three Charged Particles
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