MULTIPLE WANNIER POWER LAWS FOR 3E ESCAPE

被引：28

作者：

FEAGIN, JM

FILIPCZYK, RD

机构：

[1] Department of Physics, California State University, Fullerton

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.64.384

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A pair of generalized coordinates is introduced to describe Wannier threshold effects in three- and four-particle systems. In the case of four-particle breakup, they indicate the presence of multiple unstable normal modes in the breakup configuration and thus reveal a new feature in the Wannier formalism: the occurrence of a secondary Wannier power law. This prediction is in accord with recent experimental observations of a break in the cross section near threshold for triple photoionization in oxygen and in neon. © 1990 The American Physical Society.

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页码：384 / 387

页数：4

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