How the X(5568) Challenges Our Understanding of QCD

作     者：郭奉困 Ulf-G.Mei?ner 邹冰松 

作者机构：Key Laboratory of Theoretical Physics Institute of Theoretical Physics Chinese Academy of Sciences Helmholtz-Institut fur Strahlen- und Kernphysik and Bethe Center for Theoretical PhysicsUniversitat Bonn Institute for Advanced Simulation Institut fur Kernphysik and Julich Center for Hadron PhysicsForschungszentrum Julich School of Physical Sciences University of Chinese Academy of Sciences 

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

年 卷 期：2016年第65卷第5期

页      面：593-595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：Supported by DFG and National Natural Science Foundation of China Through Funds Provided to the Sino-German CRC 110"Symmetries the Emergence of Structure in QCD"(National Natural Science Foundation of China under Grant No.11261130311) the Thousand Talents Plan for Young Professionals and the Chinese Academy of Sciences President’s International Fellowship Initiative under Grant No.2015VMA076 

主　　题：exotic hadrons tetraquark 

摘      要：We discuss the X(5568)particle recently announced by the D0 *** types of models were proposed to explain this structure in the *** pointed out by Burns and Swanson(ar Xiv:1603.04366),none of them provides a satisfactory description of the *** provide additional arguments using general properties of QCD,and conclude that the observation of the X(5568),if confirmed,poses serious challenges to our understanding of nonperturbative QCD.