Vibrationally selected O+-O+ fragmentation of O2 below the adiabatic double-ionization potential studied via electron-electron coincidence spectroscopy

被引：28

作者：

Bolognesi, P ^{[1
]}

Thompson, DB

Avaldi, L

MacDonald, MA

Lopes, MCA

Cooper, DR

King, GC

机构：

[1] Univ Manchester, Dept Phys, Manchester M13 9PL, Lancs, England

[2] CNR, IMAI, Area Ric Roma, I-00016 Monterotondo, Italy

[3] SERC, Daresbury Lab, Warrington WA4 4AD, Cheshire, England

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.82.2075

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Mechanisms for O-2 photofragmentation leading to the formation of the O+-O+ ion pairs, at photon energies below the adiabatic double-ionization threshold, have been investigated using a threshold-photoelectron-photoelectron coincidence technique. The selectivity and high efficiency of the experimental technique have allowed the process to be followed step by step. The measurements show that fast dissociation of a singly charged ion, followed by atomic autoionization, is the dominant decay route in this energy region.

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页码：2075 / 2078

页数：4

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