Modified two-centre continuum wavefunction: application to the dissociative double ionization of H2 by electron impact
Identifieur interne : 004355 ( Main/Exploration ); précédent : 004354; suivant : 004356Modified two-centre continuum wavefunction: application to the dissociative double ionization of H2 by electron impact
Auteurs : O. Chuluunbaatar [Russie] ; B B Joulakian [France] ; I V Puzynin [Russie] ; Kh Tsookhuu [Mongolie] ; S I Vinitsky [Russie]Source :
- Journal of Physics B: Atomic, Molecular and Optical Physics [ 0953-4075 ] ; 2008.
English descriptors
- Teeft :
- Atomic units, Coincidence detection, Coulomb problem, Different wave vectors, Dinger equation, Double continuum, Double ionization, Double ionization experiments, Ejection, Ejection angle, Ejection direction, Ejection energy values, Electron impact, Equilibrium internuclear distance, Experimental curve, Experimental results, Gure, Hydrogen molecule, Incident electron, Incident energy value, Internuclear, Internuclear axis, Ionization, Krec, Momentum transfer, Opposite directions, Opposite ejection directions, Orsay group, Phys, Prolate spheroidal coordinates, Recoil momentum, Same energy values, Second electron, Theoretical results, Transition matrix element.
Abstract
The fully differential cross section (FDCS) of the double ionization of the hydrogen molecule by electron impact, with the coincidence detection of the two ejected and the scattered electrons, is determined by the application of a product of two modified two-centre Coulomb continuum (MTCC) wavefunctions describing the two ejected electrons. The MTCC, which fulfils the correct boundary conditions asymptotically up to the order O((kr)2), is obtained in a closed analytical form by solving the Schrdinger equation of an electron with wave vector k and position vector r in the Coulomb field of two fixed nuclei. After the study of the variation of the (FDCS) for some typical geometries the multiply differential cross section of the (e, 3 1e) process is determined and compared to the experimental values.
Url:
DOI: 10.1088/0953-4075/41/1/015204
Affiliations:
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Phys. B: At. Mol. Opt. 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The MTCC, which fulfils the correct boundary conditions asymptotically up to the order O((kr)2), is obtained in a closed analytical form by solving the Schrdinger equation of an electron with wave vector k and position vector r in the Coulomb field of two fixed nuclei. After the study of the variation of the (FDCS) for some typical geometries the multiply differential cross section of the (e, 3 1e) process is determined and compared to the experimental values.</div></front></TEI><affiliations><list><country><li>France</li><li>Mongolie</li><li>Russie</li></country><region><li>Grand Est</li><li>Lorraine (région)</li></region><settlement><li>Metz</li></settlement></list><tree><country name="Russie"><noRegion><name sortKey="Chuluunbaatar, O" sort="Chuluunbaatar, O" uniqKey="Chuluunbaatar O" first="O" last="Chuluunbaatar">O. 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