期刊信息
- 刊名： 河北师范大学学报（自然科学版）Journal of Hebei Normal University (Natural Science)
- 主办： 河北师范大学
- ISSN： 1000-5854
- CN： 13-1061/N
- 中国科技核心期刊
- 中国期刊方阵入选期刊
- 中国高校优秀科技期刊
- 华北优秀期刊
- 河北省优秀科技期刊
Nucleon Target's Effect to K Factor of Drell-Yan Process
摘要/Abstract
摘要：
在微扰QCDO（Ts）领头阶对数近似下，采用双重Q2-重标度模型，计算了P-A碰撞Drell-Yan过程K因子，并与P-N碰撞Drell-Yan过程K因子进行比较。计算结果表明K因子对核质量数A有很强的依赖性，且在XA<0.1区域，随XA的减小核效应越显着。与未来实验相对照，可以检验所用的核效应理论模型及微扰QCD理论
Abstract：
In the term of perturbative QCD andO(αs )'s leading order logarithmic ap- proximate, by useing double Q2rescaling model, K factor of Drell-Yan process in P-Acollision is calculated and compared with the counterpart of P- N collision. It shows that K factor depends strongly on nucleon number A, and in the range of xA < 0. 1, nuclear effect become more clear with xA become small. Compared with the funture experiments, the theory nuclear effect model that we have used and perturbative QCD may be exam- ed.
关键词
关键词：
Drell－Yan过程
;
核效应
;
K因子
Key words：
Drell-Yan process
;
nuclear effect
;
K factor