Experimental review of the T(1S,2S,3S)physics at e^(+)e^(-) colliders and the LHC  

作　　者：Sen Jia Xingyu Zhou Chengping Shen 

机构地区：[1]Key Laboratory of Nuclear Physics and Ion-beam Application(MOE)and Institute of Modem Physics,Fudan University,Shanghai 200443,China [2]School of Physics and Information Engineering,Shanxi Normal University,Linfen 041004,China

出　　处：《Frontiers of physics》2020年第6期47-81,共35页物理学前沿（英文版）

基　　金：We would like to thank Prof.Zhen Hu for fruitful discussions.This work was supported by the National Natural Science Foundation of China under Grant Nos.11575017,11761141009,11975076,and 11661141008;the National Key R&D Program of China under the contract No.2018YFA0403902;the CAS Center for Excellence in Particle Physics(CCEPP).

摘　　要：The three lowest-lying r states,ie,r(1S),T(2S),and r(35),composed of b pairs and below the BB threshold,provide a good platform for the researches of hadronic physics and physics beyond the Standard Model.They can be produced directly in ete--colliding experiments,such as CLEO,Babar,and Belle,with low continuum backgrounds.In these experiments,many measurements of the exclusive r(1S)and r(2S)decays into light hadrons,which shed light on the"80%rule"for the Okubo-Zweig-lizuka suppressed decays in the bottomonium sector,were carried out.Meanwhile,many studies of the charmonium and bottomonium productions in r(1S,2S,3S)decays were performed,to distinguish different Quantum Chromodynamics(QCD)models.Besides,exotic states and new physics were also extensively explored in r(1S,2S,3S)decays at CLEO,BaBar,and Bell.The r(1S,2S,3S)states can also be produced in p collisions and in ollisions involving heavy ions.The precision measurements of their cross sections and polarizations at the large hadron collider(LHC),especially in the CMS,ATLAS,and LHCb experiments,help to understand r production mechanisms in Pp collisions.The observation of the sequential r suppession in heavy ion collisions at CMS,LHCb,and ALICE is of great importance for verifying the quark-gluon plasma predicted by QCD.In this article,we review the experimental results on T(1S,2S,3S)at e+e-colliders and the LHC,and summarize their prospects at Belle II and the LHC.

关 键 词：r(1S 2S 3S) hadronic decay radiative decay exotic states new physics cross section polarization quark-gluon plasma 

分 类 号：O57[理学—粒子物理与原子核物理]