VELOCITY CORRELATIONS IN THE MULTIFRAGMENTATION SCENARIO

被引：15

作者：

BARZ, HW ^{[1
]}

BONDORF, JP ^{[1
]}

SNEPPEN, K ^{[1
]}

SCHULZ, H ^{[1
]}

机构：

[1] ZENT INST KERNFORSCH ROSSENDORF,O-8051 DRESDEN,GERMANY

来源：

PHYSICS LETTERS B | 1990年 / 244卷 / 02期

关键词：

D O I：

10.1016/0370-2693(90)90047-A

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

To investigate whether highly excited nuclei fragment instantaneously (multifragmentation) or undergo consecutive binary decays, we analyzed the velocity correlations of intermediate mass fragments (IMFs) by calculating the evaporating of the primordial hot fragments during the Coulomb expansion after a prompt multifragment breakup. Such a scenario can only explain the experimental data for the 18O + natAg at E/A = 84 MeV if a very low breakup density ρ{variant}breakup{reversed tilde equals} 1 10ρ{variant}0 is adopted. This leaves the question on the actual decay mechanism open and calls for more specific correlations studies involving several IMFs. © 1990.

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页码：161 / 164

页数：4

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