Determination of the reaction plane and collective flow in nucleus-nucleus interactions at 4.5 a GeV/c

被引：20

作者：

Abd-Allah, NN ^{[1
]}

机构：

[1] S Valley Univ, Fac Sci, Dept Phys, Sohag, Egypt

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2000年 / 69卷 / 04期

关键词：

angle of flow; transverse momentum; reaction plane; emulsion nuclei;

D O I：

10.1143/JPSJ.69.1068

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Nuclear emulsions are used to investigate spallations produced by 4.5 A GeV/c Mg-24 and Si-28 nuclei. The integral multiplicity distribution of disintegrated particles from target nuclei is used to separate the inelastic interactions with the free hydrogen (H), the light (CNO), and the heavy (AgBr) nuclei. Angle of flow, transverse momentum, angular characteristics, and azimuthal alignment data are analyzed for the presence collective fragments in Mg-24 + Ag(Br) and Si-28 + Ag(Br) collisions with emulsion nuclei at 4.5 A GeV/c. The determination of the reaction plane is powerful tool for investigating the nucleus-nucleus interactions. The analysis of the projection of the transverse momentum, angular characteristics, azimuthal alignment and range onto the reaction plane shows a significant side splash of the target fragment.

引用

页码：1068 / 1074

页数：7

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