Dilepton Production in the Central Rapidity Region  

作　　者：HE Zejun 

机构地区：[1]Institute of Nuclear Research,Academia Sinica,Shanghai 201800 [2]CCAST(World Laboratory),P.O.Box 8730,Beijing 100080

出　　处：《Chinese Physics Letters》1995年第11期657-660,共4页中国物理快报（英文版）

摘　　要：Generalized Boltzmann approximation of the phase-space distribution function of quarks in the quark phase and of pions in the hadron phase,adopted by previous authors,to a complete expression,the dilepton production in Bjorken's(1+1)dimensional scaling expansion system is studied.We find that the dilepton production is heightened,and the shape of the characteristic dilepton dietribution for the quark matter formation in ultrarelativistic nucleus-nucleus collisions is significantly changed.

关 键 词：QUARK LEPTON PHASE 

分 类 号：O57[理学—粒子物理与原子核物理]