A Generalized Sturmian Treatment of (e, 3e) Processes Described as a Three-Body Coulomb Problem

被引：6

作者：

Ambrosio, M. J. ^{[2
]}

Ancarani, L. U. ^{[1
]}

Mitnik, D. M. ^{[3
]}

Colavecchia, F. D. ^{[4
]}

Gasaneo, G. ^{[2
]}

机构：

[1] Univ Lorraine, Equipe TMS, UMR CNRS 7565, F-57078 Metz, France

[2] Univ Nacl Sur, Dept Fis, RA-8000 Bahia Blanca, Buenos Aires, Argentina

[3] Univ Buenos Aires, Dept Fis, FCEyN, IAFE, Buenos Aires, DF, Argentina

[4] Consejo Nacl Invest Cient & Tecn, Div Colisiones Atom, Ctr Atom Bariloche, San Carlos De Bariloche, Rio Negro, Argentina

来源：

FEW-BODY SYSTEMS | 2014年 / 55卷 / 8-10期

关键词：

IMPACT DOUBLE-IONIZATION; BREAKUP; SYSTEM; HE;

D O I：

10.1007/s00601-014-0831-5

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The double ionization of helium by high energy electron impact is investigated. The pure four-body Coulomb problem may be reduced to a three-body one in accordance with the use of the first Born approximation. Even within this frame, major unexplained discrepancies subsist between several theoretical descriptions, and with available absolute experimental data. In this contribution we discuss an alternative formulation which allows to tackle the problem with a different methodology, the generalized Sturmian approach. We discuss some issues associated to the convergence of the calculated cross sections.

引用

页码：825 / 829

页数：5

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