摘要
在本文中我们用相对论流体力学方程描述了一个膨胀的夸克-胶子等离子体的演化。在此基础上考虑了相交和相变引起的温度效应后,用弛豫方程计算了不同初始温度的奇异粒子的时空分布以及总的奇异粒子数随时间的演化规律,为判定在极端相对论原子核碰撞中是否产生了夸克物质提供了一种理论依据。
The evolution of strangeness in an expanding quark-gluon plasma formed by ultrarelati-
vistic nucleus-nucleus collisions was studied by solving relaxation equations. In the calcula-
tion, the 3-dimensional expansion effect of the system was described by relativistic hydrodyna-
mic equations. The temperature effect of the latent heat released by the phase transition on
the evolution of strangeness was considered.
出处
《高能物理与核物理》
CSCD
北大核心
1991年第5期450-456,共7页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金资助
