FREEZE-OUT IN RELATIVISTIC HEAVY-ION COLLISIONS AT ACS ENERGIES

被引：49

作者：

BRAVINA, LV

MISHUSTIN, IN

AMELIN, NS

BONDORF, JP

CSERNAI, LP

机构：

[1] MOSCOW MV LOMONOSOV STATE UNIV,INST NUCL PHYS,MOSCOW 119899,RUSSIA

[2] UNIV BERGEN,DEPT PHYS,N-5007 BERGEN,NORWAY

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

[4] SUBATECH,F-44072 NANTES 03,FRANCE

来源：

PHYSICS LETTERS B | 1995年 / 354卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(95)00680-J

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The dynamics of the light (S+S) and heavy (Au+Au) colliding systems at 11.6 A GeV/c is analyzed on the basis of the microscopic Quark Gluon String Model (QGSM). The freeze-out picture, predicted by the QGSM, is quite different from the one adopted in fluid-dynamical models. Even for the most heavy systems particle emission takes place from the whole space-time domain available for the evolution of the system, but not from the thin ''freeze-out hypersurface''. Pions are continuously emitted from the whole volume of the reaction and reflect the main trends of the evolution of the system. Nucleons in Au+Au collisions initially come from the surface region. For both reactions there is a separation of the elastic and inelastic freeze-out.

引用

页码：196 / 201

页数：6

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