含QCD修正的P-A碰撞的Drell-Yan过程  

P-A Collision Drell-Yan Process with QCD Correction

作　　者：谢革英[1] 刘娜[2] 马丽红[1] 王树平[1] 

机构地区：[1]河北建筑工程学院数理系,河北张家口075024 [2]石家庄经济学院数理学院,河北石家庄050031

出　　处：《山西大学学报（自然科学版）》2010年第3期397-400,共4页Journal of Shanxi University(Natural Science Edition)

基　　金：国家自然科学基金(10575028)

摘　　要：采用EKS98,HKM01和HKN04三套部分子分布函数计算了在微扰QCDαs近似下的核Drell-Yan过程微分截面比RQCD,与不含QCD修正的朴素Drell-Yan微分截面比R,以及E866实验组的实验数据进行了比较,发现:RQCD与R和实验数据吻合的很好,从而验证了QCD理论的适用性.By the parton distributions function in EKS98,HKM01,HKM04,we calculate the differential cross section ratios RQCD with QCD correction.Comparing these results with the ratios R calculated without QCD correction and R the E886 experimental data,it is found that RQCD and R are depend on the parton distributions function of bound nucleon to some extent.The curve tendency of RQCD is consistent with R in Drell-Yan process.

关 键 词：DRELL-YAN过程 部分子分部 QCD修正 

分 类 号：O571[理学—粒子物理与原子核物理]