Nitrogen dilution effect for small angle GDH experiment in JLab Hall-A  

作　　者：吕海江 叶云秀 闫新虎 程和平 焦铮 何聚 刘仁臣 

机构地区：[1]Department of Physics, Huangshan University [2]Department of Modern Physics, University of Science and Technology of China

出　　处：《Chinese Physics C》2008年第8期653-656,共4页中国物理C（英文版）

基　　金：NSFC (10605022);China Postdoctoral Science Foundation and Natural Science Foundation of Anhui EducationalCommittee(KJ2007B028,2006kj272B)

摘　　要：In the GDH sum rule measurement in JLab Hall-A, to obtain the cross section of electron scattering on polarized 3^He and its asymmetry in different helicity states, the dilution effect from unpolarized nitrogen mixed in the polarized 3^He target were calculated at different kinematic settings.In the GDH sum rule measurement in JLab Hall-A, to obtain the cross section of electron scattering on polarized 3^He and its asymmetry in different helicity states, the dilution effect from unpolarized nitrogen mixed in the polarized 3^He target were calculated at different kinematic settings.

关 键 词：GDH sum rule dilution factor correction cross section asymmetry 

分 类 号：O562[理学—原子与分子物理]