一个膨胀的热夸克物质的双轻子谱的研究  

A Studying for the Dilepton Mass Spectrum from an Expanding Hot Quark Matter

作　　者：贺泽君[1] 李盘林[1] 张家驹[1] 邱锡钧[1] 

机构地区：[1]中国科学院上海原子核研究所,201800

出　　处：《高能物理与核物理》1991年第6期562-568,共7页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金资助

摘　　要：一个从能量-动量守恒导出的,用来描写一个膨胀的热夸克物质的相对论性的流体力学方程被普遍化,使之包括粒子数守恒。基于新的描述,我们研究了潜热和粒子分布在谱上的效应。计算表明,要获得一个合理的关于夸克物质形成的预言,这些效应是必须考虑的。The relativistic hydrodynamic equations derived from the energy-momentum conservation, are generalized to include the equation of the particle number. The influences of the latent heat and particle distribution on the spectrum are studied on the basis of the generalized fo- rmalism. It is shown that these influences should be included, in order to get a reasonable pre- diction for the formation of the quark matter.

关 键 词：膨胀 热夸克物质 双轻子谱 

分 类 号：O572.3[理学—粒子物理与原子核物理]