Resonance structure in the electron-impact detachment cross section of C-2(-) caused by the formation of C-2(2-)

被引：40

作者：

Andersen, LH ^{[1
]}

Hvelplund, P ^{[1
]}

Kella, D ^{[1
]}

Mokler, PH ^{[1
]}

Pedersen, HB ^{[1
]}

Schmidt, HT ^{[1
]}

VejbyChristensen, L ^{[1
]}

机构：

[1] GSI DARMSTADT,D-64291 DARMSTADT,GERMANY

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1996年 / 29卷 / 17期

关键词：

D O I：

10.1088/0953-4075/29/17/003

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Electrons have been scattered on C-2(-) in the energy range from 0-35 eV. A resonance structure in the e(-) + C-2(-) --> C-2 + 2(e)(-) detachment channel was observed at an energy of about 10 eV. To explain the structure, a C-2(2-) potential curve was constructed from the isoelectronic N-2 ground-state potential curve and the repulsive Coulomb potential, and it is argued that the structure may be related to the population of a C-2(2-) state. The state is predicted to decay primarily by electron emission since a large potential barrier prevents dissociation into C- + C-.

引用

页码：L643 / L649

页数：7

共 33 条

[1] STATE-SELECTIVE DIELECTRONIC-RECOMBINATION MEASUREMENTS FOR HE-LIKE AND LI-LIKE CARBON AND OXYGEN IONS [J].