Measurements of Psi(2s) Decays into Phi Pi(0), Phi Eta, Phi Eta ', Omega Eta, and Omega Eta '

M Ablikim,JZ Bai,Y Ban,JG Bian,X Cai,JF Chang,HF Chen,HS Chen,HX 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,CS Gao,YN Gao,MY Gong,WX Gong,SD Gu,YN Guo,YQ Guo, ZJ Guo,FA Harris,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,WG Li,XL Li,XQ Li,XS Li,YF Liang,HB Liao,CX Liu,F Liu,HM Liu,JB Liu,JP Liu,RG Liu,ZA Liu,ZX Liu,F Lu,GR Lu,JG Lu,CL Luo,XL Luo,FC Ma,JM Ma,LL Ma,QM Ma,XY Ma,ZP Mao,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,HS Sun,SS Sun,YZ Sun,ZJ Sun,X Tang,N Tao,YR Tian,GL Tong,GS Varner,DY Wang,JZ Wang,K Wang,L Wang,LS Wang,M Wang,P Wang,PL Wang,SZ Wang,WF Wang,YF Wang,Z Wang,ZY Wang,CL Wei,DH Wei,N Wu,YM Wu,XM Xia,XX Xie,B Xin,GF Xu,H Xu,Y Xu,ST Xue,ML Yan,F Yang,HX Yang,J Yang,SD Yang,YX Yang,M Ye,MH Ye,YX Ye,LH Yi, ZY Yi,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,JY Zhang,JW Zhang,LS Zhang,QJ Zhang,SQ Zhang,XM Zhang,XY Zhang, YJ Zhang,YY Zhang,ZP Zhang,ZQ Zhang,DX Zhao,JB Zhao,JW Zhao,MG 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, YS Zhu,ZA Zhu,BA Zhuang,BS Zou

arXiv (Cornell University)（2004）

Cited 12|Views99

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Abstract

Decays of the psi(2S) into vector plus pseudoscalar meson final states have been studied with 14x10(6) psi(2S) events collected with the BESII detector. Branching fractions of psi(2S)-->phieta, phieta('), and omegaeta('), and upper limits of psi(2S)-->phipi(0) and omegaeta are obtained: B(psi(2S)-->phieta)=(3.3+/-1.1+/-0.5)x10(-5), B(psi(2S)-->phieta('))=(3.1+/-1.4+/-0.7)x10(-5), and B(psi(2S)-->omegaeta')=(3.2(-2.0)(+2.4)+/-0.7)x10(-5); and B(psi(2S)-->phipi(0))<0.40x10(-5), and B(psi(2S)-->omegaeta)<3.1x10(-5) at the 90% C.L. These results are used to test the perturbative QCD "12% rule."

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Key words

mesons

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