金核与金核碰撞Drell-Yan过程QCD非微扰效应对K因子的影响  

Non-perturbative QCD effect on K-factor of the Drell-Yan process duringthe nucleus aurum-nucleus aurum collision

作　　者：智海素[1] 

机构地区：[1]石家庄职业技术学院基础部,石家庄050081

出　　处：《石家庄师范专科学校学报》2004年第6期9-13,共5页Journal of Shijiazhuang Teachers College

基　　金：河北省自然科学基金资助(100144)

摘　　要：在考虑QCD物理真空夸克凝聚非微扰效应下,详细计算了金核与金核碰撞Drell-Yan过程的K因子,并把计算结果与没有考虑夸克凝聚非微扰效应的K值进行了对比.结果表明,非微扰效应对K因子影响很小.In the paper,the nucleus aurum-nucleus aurum collision the K-factor for Drell-Yan process is computed by considering non-perturbative effect from the QCD vacuum under -order approximation.By comparing the results with non-perturbative QCD effect on K-factor which is not taken into account. Calculated results show that non-perturbative QCD effect has a tiny influence on K-factor for the Drell-Yan process.

关 键 词：金核碰撞 DRELL-YAN过程 夸克凝聚 QCD非微扰效应 K因子 核子结构函数 

分 类 号：O571[理学—粒子物理与原子核物理]