dc.creatorGasaneo, Gustavo
dc.creatorMitnik, Dario Marcelo
dc.creatorRandazzo, Juan Martin
dc.creatorAncarani, L. U.
dc.creatorColavecchia, Flavio Dario
dc.date.accessioned2015-09-23T17:22:54Z
dc.date.available2015-09-23T17:22:54Z
dc.date.created2015-09-23T17:22:54Z
dc.date.issued2013-04-29
dc.identifierGasaneo, Gustavo; Mitnik, Dario Marcelo; Randazzo, Juan Martin; Ancarani, L. U.; Colavecchia, Flavio Dario; S-model calculations for high-energy-electron-impact double ionization of helium; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 87; 4; 29-4-2013; 42707-42707
dc.identifier1050-2947
dc.identifierhttp://hdl.handle.net/11336/2053
dc.description.abstractIn this paper the double ionization of helium by high-energy electron impact is studied. The corresponding four-body Schr ̈ dinger equation is transformed into a set of driven equations containing successive orders in o the projectile-target interaction. The transition amplitude obtained from the asymptotic limit of the first-order solution is shown to be equivalent to the familiar first Born approximation. The first-order driven equation is solved within a generalized Sturmian approach for an S-wave (e,3e) model process with high incident energy and small momentum transfer corresponding to published measurements. Two independent numerical implementations, one using spherical and the other hyperspherical coordinates, yield mutual agreement. From our ab initio solution, the transition amplitude is extracted, and single differential cross sections are calculated and could be taken as benchmark values to test other numerical methods in a previously unexplored energy domain.
dc.languageeng
dc.publisherAmerican Physical Society
dc.relationinfo:eu-repo/semantics/altIdentifier/url/http://journals.aps.org/pra/abstract/10.1103/PhysRevA.87.042707
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevA.87.042707
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectGeneralized Sturmians
dc.subjectDouble Ionization of He
dc.subject(E,3e)
dc.subjectElectron-Atom Collision
dc.titleS-model calculations for high-energy-electron-impact double ionization of helium
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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