Improved Measurement Of The Branching Ratio Of J/Psi ->(Kskl0)-K-0 Jz Bai , Y Ban , Jg Bian , X Cai , Jf Chang , Hf Chen , Hs Chen , Hx Chen , J Chen , Jc Chen , J Chen , Ml Chen , Yb Chen , Sp Chi , Yp Chu , Xz Cui , Hl Dai , Ys Dai , Zy Deng , Ly Dong , Sx Du , Zz Du , J Fang , Ss Fang , Cd Fu , Hy Fu , Lp Fu , Cs Gao , Ml Gao , Yn Gao , My Gong , Wx Gong , Sd Gu , Yn Guo , Yq Guo , Zj Guo , Sw Han , Fa Harris , J He , Kl He , M He , X He , Yk Heng , Hm Hu , T Hu , Gs Huang , L Huang , Xp Huang , Xb Ji , Qy Jia , Ch Jiang , Xs Jiang , Dp Jin , S Jin , Y Jin , Yf Lai , F Li , G Li , Hh Li , J Li , Jc Li , Qj Li , Rb Li , Ry Li , Sm Li , W Li , Wg Li , Xl Li , Xq Li , Xs Li , Yf Liang , Hb Liao , Cx Liu , F Liu , F Liu , Hm Liu , Jb Liu , Jp Liu , Rg Liu , Y Liu , Za Liu , Zx Liu , Gr Lu , F Lu , Jg Lu , Cl Luo , Xl Luo , Fc Ma , Jm Ma , Ll Ma , Xy Ma , Zp Mao , Xc Meng , Xh Mo , J Nie , Zd Nie , Sl Olsen , Hp Peng , Nd Qi , Cd Qian , H Qin , Jf Qiu , Zy Ren , G Rong , Ly Shan , L Shang , Dl Shen , Xy Shen , Hy Sheng , F Shi , X Shi , Lw Song , Hs Sun , Ss Sun , Yz Sun , Zj Sun , X Tang , N Tao , Yr Tian , Gl Tong , Gs Varner , Dy Wang , Jz Wang , L Wang , Ls Wang , M Wang , M Wang , P Wang , Pl Wang , Sz Wang , Wf Wang , Yf Wang , Z Wang , Z Wang , Z Wang , Zy Wang , Cl Wei , N Wu , Ym Wu , Xm Xia , Xx Xie , B Xin , Gf Xu , H Xu , Y Xu , St Xue , Ml Yan , Wb Yan , F Yang , Hx Yang , J Yang , Sd Yang , Yx Yang , Lh Yi , Zy Yi , M Ye , Mh Ye , Yx Ye , Cs Yu , Gw Yu , Cz Yuan , Jm Yuan , Y Yuan , Q Yue , Sl Zang , Y Zeng , Bx Zhang , By Zhang , Cc Zhang , Dh Zhang , Hy Zhang , J Zhang , Jm Zhang , Jy Zhang , Jw Zhang , Ls Zhang , Qj Zhang , Sq Zhang , Xm Zhang , Xy Zhang , Yy Zhang , Yj Zhang , Yy Zhang , Zp Zhang , Zq Zhang , Dx Zhao , Jb Zhao , Jw Zhao , Pp Zhao , Wr Zhao , Xj Zhao , Yb Zhao , Zg Zhao , Hq Zheng , Jp Zheng , Ls Zheng , Zp Zheng , Xc Zhong , Bq Zhou , Gm Zhou , L Zhou , Nf Zhou , Kj Zhu , Qm Zhu , Yc Zhu , Yc Zhu , Ys Zhu , Za Zhu , Ba Zhuang , Bs Zou PHYSICAL REVIEW D（2004）
摘要
The branching ratio of J/psi-->(KSKL0)-K-0 is measured with improved precision to be B(J/psi-->(KSKL0)-K-0)=(1.82+/-0.04+/-0.13)x10(-4) using J/psi data collected with the Beijing Spectrometer (BESII) at the Beijing Electron-Positron Collider. This result is used to test the perturbative QCD prediction between psi(2S) and J/psi decays and to investigate the relative phase between the three-gluon and one-photon annihilation amplitudes in J/psi decays.
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ratio ofj/ψ→ks0kl0, improved measurement
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