Search forψ(3770)→ρπat the BESII detector at the Beijing Electron-Positron Collider

M Ablikim,H Qin,M G Zhao,H Y Zhang,J C Chen,Y P Chu,X Cai,S L Zang,Jin Chen,Z A Liu,Z P Zhang,C D Fu,H S Chen,H Y Sheng,X Tang,J Z Bai,G F Xu,J B Liu,J Fang,X B Ji,M H Ye,Fang Liu,Y T Gu,X T Huang,B A Zhuang,Y Yuan,L Y Dong,Z P Zheng,Y S Zhu,Z Y Deng,B S Zou,J Nie,C C Zhang,S S Fang,F Liu,Zhe Wang,C Z Yuan,X Y Zhang,Y Zeng,D P Jin,G Li,T Hu,N D Qi,Y F Liang,Y Ban,Yiyun Zhang,X Y Shen,D H Wei,Zheng Wang,H M Hu,X S Jiang,K L He,K J Zhu,J F Qiu,M He,Y S Dai,J B Jiao,Q M Zhu,S Jin,Y X Ye,Z J Sun,C S Gao,X H Mo,J G Lu,Z P Mao,X M Xia,G Rong,C L Luo,S X Du,Y K Heng,W F Wang ,L Y Shan ,L S Wang ,H Peng ,Feng Shi ,Y Zhu ,H X Yang ,Y N Guo ,X Zhuang ,R G Liu ,C Wei ,J P Liu ,B Y Zhang ,G L Tong ,J Liu ,Zhou Li ,X P Huang ,J Li ,R Y Li ,Yang Tian ,Y F Lai ,Zhengguo Tan ,G Yu ,H L ,W R Zhao ,S Gu ,L L ,J F Sun ,Yifan Yang ,H M Liu ,D L Shen ,X B ,H Sun ,W G Li ,Z Q Zhang ,Nengyou Wu ,Q J Zhang ,H J Lü ,J W Zhang ,X X Xie ,Qingshun Dong ,G R Lu ,Z Z Du ,W D Li ,B X Zhang ,Z Wang ,X Q Li ,P L Wang ,Q M ,J M Yuan ,X M Zhang ,Dongxu Zhao ,H X Chen ,Mu-Lin Yan ,X L Li ,Na Zhou ,X Shi ,S P ,L Shang ,Z A Zhu ,H F Chen ,S Sun ,S M Li ,Luohan Wang ,Y Z Sun ,M Wang ,F X Lu ,J Yang ,Y Q Guo ,Y Jin ,J P Zheng ,J G Bian ,D H Zhang ,C X Liu ,H H Li ,Zhao Yi ,H B Li ,H H Liu ,Z Y Wang ,D Y Wang ,F Yang ,Bin Xin ,P Wang ,J Y Zhang ,F C ,Y L Li ,Jiawei Zhao ,H Liao ,H Q Zheng ,Y B Chen ,Y F Wang ,Z Ren ,X Z Cui ,P P Zhao ,Yang Gao ,Y Xu

doi:10.1103/physrevd.72.072007

Search forψ(3770)→ρπat the BESII detector at the Beijing Electron-Positron Collider

M Ablikim, H Qin + Show 164 more

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https://doi.org/10.1103/physrevd.72.072007

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Journal: Physical Review D	Publication Date: Oct 27, 2005
Citations: 18

Affiliation: Institute of High Energy Physics, Nanjing Normal University, Nankai University, University of Science and Technology of China, China Center of Advanced Science and Technology, Guangxi University, Shandong University, Central China Normal University, Hunan University, Sichuan University, Peking University, Zhejiang University, Wuhan University, Tsinghua University, Guangxi Normal University, Henan Normal University, Liaoning University

#Ρπ Puzzle #Continuum Amplitude + Show 8 more

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Abstract

Non-DD¯ decay ψ(3770)→ρπ is searched for using a data sample of (17.3±0.5) pb−1 taken at the center-of-mass energy of 3.773 GeV by the BESII detector at the BEPC. No ρπ signal is observed, and the upper limit of the cross section is measured to be σ(e+e−→ρπ)<6.0 pb at 90% C. L. Considering the interference between the continuum amplitude and the ψ(3770) resonance amplitude, the branching fraction of ψ(3770) decays to ρπ is determined to be B(ψ(3770)→ρπ)∈(6.0×10−6,2.4×10−3) at 90% C. L. This is in agreement with the prediction of the S- and D-wave mixing scheme of the charmonium states for solving the “ρπ puzzle” between J/ψ and ψ(2S) decays.Received 21 July 2005DOI:https://doi.org/10.1103/PhysRevD.72.072007©2005 American Physical Society

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