ELECTRON-CAPTURE IN HE2+ COLLISIONS WITH ALIGNED NA-ASTERISK (3P) ATOMS

被引：44

作者：

AUMAYR, F ^{[1
]}

GIELER, M ^{[1
]}

SCHWEINZER, J ^{[1
]}

WINTER, H ^{[1
]}

HANSEN, JP ^{[1
]}

机构：

[1] FYS INST,N-5000 BERGEN,NORWAY

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.68.3277

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

State-selective single-electron capture in slow (0.5-3 keV/amu) collisions of He2+ with laser-excited Na*(3p) atoms has been studied experimentally by means of translational energy spectroscopy, and theoretically by 38-state atomic orbital (AO) close-coupling calculations. The initial orbital alignment of the Na*(3p) state has been controlled via polarization of the exciting laser light. Electron capture into the dominant He+ (n = 4) state is strongly favored for linear light polarization perpendicular to the He2+ beam. The impact energy dependence of the observed alignment behavior can be quantitatively explained by the AO calculations.

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页码：3277 / 3280

页数：4

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