EMC效应对束缚核子内夸克横向动量分布的影响  

The Influence of EMC Effect on Parton Transverse Momentum in Bound Nucleon

作　　者：朱亚波[1] 

机构地区：[1]徐州师范大学物理系

出　　处：《南京师大学报（自然科学版）》1998年第4期27-29,共3页Journal of Nanjing Normal University(Natural Science Edition)

摘　　要：讨论了ＥＭＣ效应对束缚核子内夸克横向动量分布的影响．通过ＥＭＣ效应所显示的深度非弹结构函数的重标度公式，用Ｇｌｕｃｋ等人新近提出的自由核子夸克分布函数，计算了铁核与自由核子内夸克的横向动量分布之比。The influence of EMC effect on parton transverse momentum in bound nucleon is discussed. Adapting the Jaffe's rescaling formula which express the EMC effect on deep inelastic scattering off nuclei and making use of the parton distribution function fitted by Gluck,the ratio of parton transverse momentum from nuclei Fe and free nucleon is calculated. Our result shows that the influence of EMC effect is weak to parton transverse momentum in bound nucleon .

关 键 词：EMC效应 夸克 束缚核子 横向动量分布 

分 类 号：O572.33[理学—粒子物理与原子核物理] O571[理学—物理]