MASS DEPENDENCE OF THE DISAPPEARANCE OF FLOW IN NUCLEAR COLLISIONS

被引：201

作者：

WESTFALL, GD

BAUER, W

CRAIG, D

CRONQVIST, M

GUALTIERI, E

HANNUSCHKE, S

KLAKOW, D

LI, T

REPOSEUR, T

VANDERMOLEN, AM

WILSON, WK

WINFIELD, JS

YEE, J

YENNELLO, SJ

LACEY, R

ELMAANI, A

LAURET, J

NADASEN, A

NORBECK, E

机构：

[1] MICHIGAN STATE UNIV,DEPT PHYS & ASTRON,E LANSING,MI 48824

[2] SUNY,DEPT CHEM,STONY BROOK,NY 11794

[3] UNIV MICHIGAN,DEPT NAT SCI,DEARBORN,MI 48128

[4] UNIV IOWA HOSP & CLIN,DEPT PHYS & ASTRON,IOWA CITY,IA 52242

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.71.1986

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The disappearance of collective flow in nucleus-nucleus collisions occurs at an incident energy (E(bal)) where the attractive scattering dominant at low energies balances the repulsive scattering dominant at high energies. We have performed the first systematic study of the entrance-channel mass dependence of the disappearance of flow and hence E(bal). The new data presented for the C+C, Ne+Al, Ar+Sc, and Kr+Nb systems show that E(bal) scales as A-1/3 where A is the mass of the combined system. Boltzmann-Uehling-Uehlenbeck model calculations show trends which are in qualitative agreement with these new results.

引用

页码：1986 / 1989

页数：4

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