Quark distributions in nuclei and nuclear effects on nucleon structure functions  

作　　者：王艳召 张鸿飞 高永华 侯召宇 董建敏 段春贵 左维 

机构地区：[1]School of Nuclear Science and Technology, Lanzhou University [2]Department of Physics, Shijiazhuang College [3]Department of Mathematics and Physics, Shijiazhuang Railway College [4]Department of Physics, Hebei Normal University [5]Institute of Modern Physics, Chinese Academy of Sciences

出　　处：《Chinese Physics C》2009年第4期263-268,共6页中国物理C（英文版）

基　　金：Supported by Natural Science Foundation of China (100775061, 10505016, 10575119);CAS Knowledge Innovation Project(KJCX-SYW-N02);Major State Basic Research Developing Program of China (2007CB815004);Natural Science Foundationof Hebei Province in China (A2005000535, 103143)

摘　　要：Extended quark distribution functions are presented obtained by fitting a large amount of experimental data of the l-A DIS process on the basis of an improved nuclear density model. The experimental data of l-A DIS processes with A≥ 3 in the region 0.0010 ≤ x ≤ 0.9500 are quite satisfactorily described by using the extended formulae. Our knowledge of the influence of nuclear matter on the quark distributions is deepened.Extended quark distribution functions are presented obtained by fitting a large amount of experimental data of the l-A DIS process on the basis of an improved nuclear density model. The experimental data of l-A DIS processes with A≥ 3 in the region 0.0010 ≤ x ≤ 0.9500 are quite satisfactorily described by using the extended formulae. Our knowledge of the influence of nuclear matter on the quark distributions is deepened.

关 键 词：improved nuclear density model quark distributions in nuclei nuclear effects on nucleon structure functions 

分 类 号：O572.33[理学—粒子物理与原子核物理]