Proton Spin Structure Functions and Quark-Hadron Duality  

作　　者：董宇兵 

机构地区：[1]Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049

出　　处：《Chinese Physics Letters》2006年第9期2383-2386,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 90103020 and 10475088, the Knowledge Innovation Project of Chinese Academy of Sciences under Grant No KC2-SW-N02, and the Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator.

摘　　要：Quark-hadron duality of three proton spin structure functions g1, g2 and gT are discussed simultaneously. It is found that the onsets of the quark-hadron dualities of g1^p, g2^p and gT^p. are similar and they are expected to be at about Q2～2 GeV2. In addition, our results show that the elastic peak remarkably breaks local quark-hadron duality.Quark-hadron duality of three proton spin structure functions g1, g2 and gT are discussed simultaneously. It is found that the onsets of the quark-hadron dualities of g1^p, g2^p and gT^p. are similar and they are expected to be at about Q2～2 GeV2. In addition, our results show that the elastic peak remarkably breaks local quark-hadron duality.

关 键 词：TARGET-MASS CORRECTIONS SUM-RULES LOCAL DUALITY SCATTERING ELECTROPRODUCTION RESONANCES BEHAVIOR Q(2) 

分 类 号：O572.33[理学—粒子物理与原子核物理]