Nuclear-stopping-induced fast multifragmentation in Ar+-C60 collisions -: art. no. 043201

被引：7

作者：

Chen, L ^{[1
]}

Wei, B ^{[1
]}

Bernard, J ^{[1
]}

Brédy, R ^{[1
]}

Martin, S ^{[1
]}

机构：

[1] Univ Lyon 1, CNRS, UMR 5579, Spectrometrie Ion & Mol Lab, F-69622 Villeurbanne, France

来源：

PHYSICAL REVIEW A | 2005年 / 71卷 / 04期

关键词：

D O I：

10.1103/PhysRevA.71.043201

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Ionization and multifragmentation of C-60 in Ar+ impact at 7 keV, 14 keV, and 20 keV have been investigated. Fragment mass spectra differentiated according to the C-60(r+) parent ion charge state are interpreted in terms of a transition from the nonstatistical fast multifragmentation in a time range of about 500 fs induced by nuclear interaction at low collision velocity (v < 0.1 a.u.) to the statistical multifragmentation induced by nuclear and electronic interaction at higher collision velocities. Prompt ejection of a carbon atom due to the direct momentum transfer is observed.

引用

页数：5

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