Observation of pentaquark states and prospectives of further studies  

作　　者：Cheng-Ping Shen Chang-Zheng Yuan 

机构地区：[1]School of Physics and Nuclear Energy Engineering,Beihang University [2]Institute of High Energy Physics, Chinese Academy of Sciences

出　　处：《Science Bulletin》2015年第17期1549-1550,共2页科学通报（英文版）

摘　　要：The quark model based on quark–antiquark mesons and three-quark baryons has been very successful in classifying the hadrons.However,quantum chromodynamics(QCD)does not forbid the existence of exotic hadronic states with other quark–gluon configurations,such asThe quark model based on quark-antiquark mesons and three-quark baryons has been very successful in classifying the hadrons. However, quantum chromodynamics （QCD） does not forbid the existence of exotic hadronic states with other quark-gluon configurations, such as glueballs （with no quark）, hybrids （with quarks and excited gluon）, mul- tiquark states （with more than three quarks）, and hadron molecules （bound state of two or more hadrons）. It is a long history of searching for all these kinds of states; however, no solid conclusion was reached until the recent discovery of tetraquark and pentaquark states.

关 键 词：五夸克态 夸克胶子结构 量子色动力学 强子态 夸克模型 反夸克 QCD 杂交种 

分 类 号：O572.33[理学—粒子物理与原子核物理]