摘要
In the past 20 years,many new hadrons that are difficult to explain within the conventional quark model have been discovered in the quarkonium region;these are called exotic hadrons.The Belle I experiment,as the nextgeneration B factory,provides a good platform for exploring them.The charmonium-like states can be produced at Belle I in several ways,such as B meson decays,initial-state radiation processes,two-photon collisions and double charmonium production.Bottomonium-like states can be produced directly in e^(+)e^(-) colliding energies at Belle I with low continuum backgrounds.Belle I plans to perform a high-statistics energy scan from the BB threshold up to the highest possible energy of 11.24 GeV to search for new Y_(b)states with J^(PC)=1^(--),X_(b)[the bottom counterpart of χ_(c1)(3872),also known as X(3872)]and partners of Z_(b)states.We give a mini-review on the status and prospects of exotic hadrons at BelleⅡ.
作者
贾森
熊玮韬
沈成平
Sen Jia;Weitao Xiong;Chengping Shen(School of Physics,Southeast University,Nanjing 211189,China;Key Laboratory of Nuclear Physics and Ion-Beam Application(MOE)and Institute of Modern Physics,Fudan University,Shanghai 200443,China;School of Physics,Henan Normal University,Xinxiang 453007,China)
基金
supported by the National Natural Science Foundation of China(Grant Nos.12342024,12135005,12135005,11975076,and 12005040)
the Fundamental Research Funds for the Central Universities(Grant No.RF1028623046)。
