高能核-核碰撞中末态产物的角分布(英文)

田俊龙; 赵红光; 郝红军

doi:10.11804/NuclPhysRev.28.03.263

高能核-核碰撞中末态产物的角分布(英文)

Angular Distributions of Finalstate Particles Produced in Nucleus-nucleus Collisions

摘要

摘要: 用各向同性的火球模型研究了能量为14.6 AGeV的¹⁶OEm碰撞中末态产物的发射角分布和能量为4.5 AGeV的28SiEm碰撞中靶核碎块中黑粒子的方位角分布。在这个模型中增加横向流可以描述能量为3.7 AGeV的C-Ne和C-Cu碰撞中靶核碎块π介子和质子的方位角分布。计算结果与实验数据符合得较好，表明改进了的火球模型能够描述高能核核碰撞的角分布。
The emission angular distributions of finalstate particles produced in ¹⁶OEmulsion (Em) collisions at 14.6 AGeV, and the azimuthal angular distributions for the black particles produced in 28SiEm at 4.5 AGeV have been studied by an isotropic fireball model. The model including transverse flow is used to describe the azimuthal distributions of midrapidity π- mesons and protons produced in CNe and CCu collisions at 3.7 AGeV. The calculated results are in agreement with the experimental angular distributions. It shows that the improved fireball model gives a good description of nucleusnucleus collisions at high energies.

Abstract: The emission angular distributions of finalstate particles produced in 16OEmulsion (Em) collisions at 14.6 AGeV, and the azimuthal angular distributions for the black particles produced in 28SiEm at 4.5 AGeV have been studied by an isotropic fireball model. The model including transverse flow is used to describe the azimuthal distributions of midrapidity π- mesons and protons produced in CNe and CCu collisions at 3.7 AGeV. The calculated results are in agreement with the experimental angular distributions. It shows that the improved fireball model gives a good description of nucleusnucleus collisions at high energies.

HTML全文

参考文献(0)

施引文献

资源附件(0)