X（1835）： A Possible Baryonium？

作     者：ZHU Shi-Lin GAO Chong-Shou 

作者机构：Department of Physics Peking University Beijing 100871 China Research Center for Nuclear Physics Osaka University Japan 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2006年第46卷第2X期

页      面：291-293页

核心收录：

学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

基　　金：The project supported by National Natural Science Foundation of China under Grant Nos. 90103019  10375003 and 10421503  the Doctoral Program Foundation of Institution of Higher Education under Grant No. KJCX2-SW-N10. S.L. Zhu thanks B.A. Li for very helpful criticism and N. Kochelev and X.G. He for useful discussions 

主　　题：baryonium new hadron states 

摘      要：We point out that the large pp^- coupling of X（1835） and the suppression of the three-body strange final states strongly indicate that X（1835） may be a pp^- baryonium. We also point out that the branching ratio of X（1835） →ηππ should be bigger than that of X（1835） →η′ππ. We suggest BES search X（1835） in the ηππ channel Finally, X（1835） may be used a tetraquark generator if X（1835） is really established as a baryonium state.