Absolute triply differential (e,2e) cross section measurements for H with comparison to theory

被引：62

作者：

Roder, J

Ehrhardt, H

Pan, C

Starace, AF

Bray, I

Fursa, DV

机构：

[1] UNIV NEBRASKA, DEPT PHYS & ASTRON, LINCOLN, NE 68588 USA

[2] FLINDERS UNIV S AUSTRALIA, ELECT STRUCT MAT CTR, ADELAIDE, SA 5001, AUSTRALIA

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.79.1666

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Absolute triply differential (e,2e) cross section measurements are presented for H (for incident energies, E(0), of 15.6 and 17.6 eV) for equal energy sharing and the theta(12) = pi configuration. Results of distorted partial wave calculations agree with the measurements; those of convergent close coupling calculations agree with the relative angular distributions, but are lower than experiment by factors of from 2 to 7. Relative experimental results for H for E(0) = 14.6 eV show a qualitative change in shape, which agrees with theory. Implications of the absolute experimental results for the range of validity of the Wannier threshold law are discussed.

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页码：1666 / 1669

页数：4

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