Double ionization of He by electron impact at large momentum transfer

被引：12

作者：

Bolognesi, P ^{[1
]}

Jia, CC

Avaldi, L

Lahmam-Bennani, A

Kouzakov, KA

Popov, YV

机构：

[1] CNR, IMIP, Area Ricerca Roma 1, I-00016 Monterotondo, Italy

[2] Univ Paris 11, LCAM, UMR 8625, F-91405 Orsay, France

[3] Max Planck Inst Mikrostrukturphys, D-06120 Halle An Der Saale, Germany

[4] Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow 119899, Russia

[5] Univ Sci & Technol China, Dept Modern Phys, Lab Atom & Mol Phys, Open Lab Bond Select Chem, Hefei 230027, Anhui, Peoples R China

来源：

PHYSICAL REVIEW A | 2003年 / 67卷 / 03期

关键词：

D O I：

10.1103/PhysRevA.67.034701

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The double ionization of He by electron impact at 580 eV has been studied in a coplanar symmetric (e,(3-1)e) experiment, in which two fast electrons of 250 eV are detected. In this way a momentum transfer as large as 6 a.u. is achieved. The results are compared with the predictions of a theoretical model based on the impulse (knock-out) approximation. The calculations, which include radial correlation of electrons in the He ground state wave function, better describe the experiment than those with an uncorrelated wave function.

引用

页数：4

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