一个膨胀的热核物质的双轻子谱  

Dilepton Spectrum from An Expanding Hot Nuclear Matter

作　　者：贺泽君[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》1993年第8期731-733,共3页High Energy Physics and Nuclear Physics

摘　　要：本文研究了膨胀的热核物质的双轻子谱。将它与来自热夸克物质的谱相比,人们可以发现它们是十分不同的。特别是,前者随初始温度或粒子密度的变化是单调的,后者则是非单调的。这可为实验上判断夸克相变的发生提供理论上的预言。In this paper the dilepton spectrum from an expanding hot nuclear matter is studied. Comparing with the spectrum from hot quark matter, we find that they are quite different. Especially the former with respect to the initial temperature or particle density is monotonic. the latter is non-monotonic. This may serve as theoretical examination for the production of quark phase transition.

关 键 词：热核物质 双轻子谱 夸克 相变 

分 类 号：O571.4[理学—粒子物理与原子核物理]