R value measurements for [formula omitted] annihilation at 2.60, 3.07 and 3.65 GeV

M Ablikim,L Zhou,H.M Liu,J Liu,C.X Liu,Y Ban,X Wan,Y.X Ye,Z.Y Wang,J Nie,H.H Li,H.Q Zhang,Jin Chen,Y Jin,B Zheng,L.L Wang,X.D Chen,H.L Ma,Feng Liu,W.D Li,D.H Zhang,Z.P Zhang,L Wang,F.C Ma,C.C Zhang,L Shang,B Zhong,J.P Liu,Y Bai,Q Liu,Fang Liu,J.Y Zhang,H.S Chen,Z.A Liu,J Fang,Z.X Zhang,G Rong,X.Y Zhang,H.X Chen,M.H Ye,B.X Zhang,X Tang,M He,T Hu,H.B Liu,Y Weng,R.G Liu,H.Y Zhang,B.Y Zhang,Y Yuan,S Jin,P Wang,M Yang,H.B Li,J.C Chen,L Li,Y.Y Zhang,H.F Chen,Z.L Zhu,Y Zeng,J.W Zhang,Y.S Zhu,X.L Li,X.Q Li,G F Xu ,X Zhu ,Y Z Sun ,J P Zheng ,L Y Shan ,J G Lu ,M Q A Malik ,H Y Sheng ,N D Qi ,Xuefeng Yin ,Y N Guo ,Pu-Ze Wang ,S Gu ,Yue-Lu Chen ,G R Lu ,C D Fu ,H Sun ,Y K Heng ,Wenzhuo Li ,Dongxu Zhao ,C Z Yuan ,S S Sun ,X Y Shen ,Y Huang ,Han-Qing Zheng ,Q M Zhu ,J B Jiao ,X T Huang ,Y F Liang ,Z J Guo ,M G Zhao ,G Varner ,Y Q Guo ,K L He ,C S Gao ,Cai X ,Gangjian Li ,C L Luo ,Yifan Yang ,X H Mo ,Y Gao ,Zhi‐Wei Sun ,Z A Zhu ,Yifei Wang ,Xigang Li ,Y T Gu ,Louzhaohan Wang ,Z P Mao ,X M Xia ,G S Huang ,D H Wei ,H M Hu ,J F Qiu ,J Z Bai ,Z P Zheng ,J Tian ,Jiabao Li ,C X Yu ,D P Jin ,S X Du ,Xiangdong Ji ,Mu-Lin Yan ,F A Harris ,Z Y Deng ,J Zhao ,J H Hu ,B A Zhuang ,G L Tong ,R G Ping ,X P Xu ,Y S Dai ,K Zhu ,Suo Liu ,Bojun Liu ,Q M Ma ,S L Olsen ,Z.r Wang ,X D Ruan ,C Wei ,F X Lu ,Z Zhao ,X S Jiang ,Nengyou Wu ,Y P Chu ,C P Shen ,P P Zhao ,Ruolin Li ,H X Yang ,B S Zou

doi:10.1016/j.physletb.2009.05.055

R value measurements for [formula omitted] annihilation at 2.60, 3.07 and 3.65 GeV

M Ablikim, L Zhou + Show 151 more

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https://doi.org/10.1016/j.physletb.2009.05.055

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Journal: Physics Letters B	Publication Date: May 29, 2009
Citations: 67	License type: cc-by

Affiliation: Institute of High Energy Physics, Peking University, Henan Normal University, Central China Normal University, University of Hawaii System, Tsinghua University, University of Science and Technology of China, Zhejiang University

#Hadronic Final States #Statistical Errors + Show 8 more

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Abstract

Using a data sample with a total integrated luminosity of 10.0 pb−1 collected at center-of-mass energies of 2.6, 3.07 and 3.65 GeV with BESII, cross sections for e+e− annihilation into hadronic final states (R values) are measured with statistical errors that are smaller than 1%, and systematic errors that are about 3.5%. The running strong interaction coupling constants αs(3)(s) and αs(5)(MZ2) are determined from the R values.

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