FRAGMENTATION, DISSIPATIVE EXPANSION, AND FREEZE-OUT IN MEDIUM ENERGY HEAVY-ION COLLISIONS

被引：0

作者：

GROSS, DHE ^{[1
]}

LI, BA ^{[1
]}

DEANGELIS, AR ^{[1
]}

机构：

[1] FREE UNIV BERLIN,FACHBEREICH PHYS,W-1000 BERLIN 33,GERMANY

来源：

ANNALEN DER PHYSIK | 1992年 / 1卷 / 06期

关键词：

NUCLEAR FRAGMENTATION; EFFECTIVE ONE-BODY DYNAMICS; COLLECTIVE FLOW; EQUILIBRATION;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The collision dynamics of Mo-96 + Mo-96 at 55 A MeV is simulated by solving numerically the Boltzmann-Uehling-Uhlenbeck (BUU) transport equation for the one-body phase-space distribution-function of nucleons with and without Coulomb interaction. A scatter-plot of the one-body density distribution shows an initial compression, subsequent homogeneous expansion, a breaking into "fragments", a very slow creeping expansion up to a freeze-out and in the case of included Coulomb-interaction a Coulomb-explosion. In the calculation which included Coulomb-interaction the overall shape of the ensemble of dense fragments is spherical. The fragments are created over the entire volume of the dense part of the source and not at the surface only. In the simulation without Coulomb interaction a doughnut-like shape may develop.

引用

页码：467 / 472

页数：6

共 50 条

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