Electric and Magnetic Form Factors of Proton in Relativistic Constituent QuarkModel  

作　　者：WANGHong-Min ZHANGBen-Ai 

机构地区：[1]GraduateSchool,theChineseAcademyofEngineeringPhysics,Beijing100088,China

出　　处：《Communications in Theoretical Physics》2004年第3期425-428,共4页理论物理通讯（英文版）

基　　金：The project supported by the Science Foundation of Chinese Academy of Engineering Physics under Contract No.42103 and for Research Doctor Subsidizes (2001)

摘　　要：Based on relativistic constituent quark (RCQ) model, the electric and magnetic form factors are analyzed. The ratio of the two form factors for the proton , which is an image of its charge and magnetization distributions, is calculated in the light-front formulism of RCQ model. Recently, this ratio was measured at the Thomas Jefferson National Accelerator Facility (JLab) using the polarization technique. The new data presented span the range and are well described by a linear Q<SUP>2</SUP> fit. Also, the ratio reaches a constant value while Q<SUP>2</SUP> becomes larger than 2 (GeV)<SUP>2</SUP>. Our calculation results are presented and appear to be consistent with the experimental ones.

关 键 词：form factors relativistic constituent quark model radial function 

分 类 号：O572.341[理学—粒子物理与原子核物理]