FORMATION AND BREAKUP OF EXTRA-LARGE COMPOSITE SYSTEM IN CENTRAL AU+AU COLLISIONS

被引：43

作者：

BONDORF, JP

BOTVINA, AS

MISHUSTIN, IN

SOUZA, SR

机构：

[1] RUSSIAN ACAD SCI,INST NUCL RES,117312 MOSCOW,RUSSIA

[2] KURCHATOV INST,RUSSIAN SCI CTR,123182 MOSCOW,RUSSIA

[3] LAB NATL SATURNE,F-91191 GIF SUR YVETTE,FRANCE

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 73卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.73.628

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Recent data on multifragmentation in central Au+Au collisions at beam energy 100 MeV/nucleon are analyzed within the statistical and molecular dynamics models. The data are consistent with statistical breakup of a thermalized source with radius of 14 fm, mass number around 250, and excitation energy about 7 MeV/nucleon, in good agreement with molecular dynamics calculations. According to this model, fragment formation takes place within a time interval of 50 fm/c after the maximum compression. Intense preequilibrium emission of light particles and strong collective flow of fragments are predicted.

引用

页码：628 / 631

页数：4

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