Bibliographic Details
Title:
Measurements of ψ(2S) decays to octet baryon–antibaryon pairs
Authors:
Ablikim, M. , Bai, J.Z. , Ban, Y. , Cai, X. , Chen, H.F. , Chen, H.S. , Chen, H.X. , Chen, J.C. , Chen, Jin , Chen, Y.B. , Chu, Y.P. , Dai, Y.S. , Diao, L.Y. , Deng, Z.Y. , Dong, Q.F. , Du, S.X. , Fang, J. , Fang, S.S. , Fu, C.D. , Gao, C.S. , Gao, Y.N. , Gu, S.D. , Gu, Y.T. , Guo, Y.N. , Guo, Z.J. , Harris, F.A. , He, K.L. , He, M. , Heng, Y.K. , Hou, J. , Hu, H.M. , Hu, J.H. , Hu, T. , Huang, X.T. , Ji, X.B. , Jiang, X.S. , Jiang, X.Y. , Jiao, J.B. , Jin, D.P. , Jin, S. , Lai, Y.F. , Li, G. , Li, H.B. , Li, J. , Li, R.Y. , Li, S.M. , Li, W.D. , Li, W.G. , Li, X.L. , Li, X.N. , Li, X.Q. , Liang, Y.F. , Liao, H.B. , Liu, B.J. , Liu, C.X. , Liu, F. , Liu, Fang , Liu, H.H. , Liu, H.M. , Liu, J. , Liu, J.B. , Liu, J.P. , Liu, Jian , Liu, Q. , Liu, R.G. , Liu, Z.A. , Lou, Y.C. , Lu, F. , Lu, G.R. , Lu, J.G. , Luo, C.L. , Ma, F.C. , Ma, H.L. , Ma, L.L. , Ma, Q.M. , Mao, Z.P. , Mo, X.H. , Nie, J. , Olsen, S.L. , Ping, R.G. , Qi, N.D. , Qin, H. , Qiu, J.F. , Ren, Z.Y. , Rong, G. , Ruan, X.D. , Shan, L.Y. , Shang, L. , Shen, C.P. , Shen, D.L. , Shen, X.Y. , Sheng, H.Y. , Sun, H.S. , Sun, S.S. , Sun, Y.Z. , Sun, Z.J. , Tang, X. , Tong, G.L. , Varner, G.S. , Wang, D.Y. , Wang, L. , Wang, L.L. , Wang, L.S. , Wang, M. , Wang, P. , Wang, P.L. , Wang, Y.F. , Wang, Z. , Wang, Z.Y. , Wang, Zheng , Wei, C.L. , Wei, D.H. , Wiedner, U. , Weng, Y. , Wu, N. , Xia, X.M. , Xie, X.X. , Xu, G.F. , Xu, X.P. , Xu, Y. , Yan, M.L. , Yang, H.X. , Yang, Y.X. , Ye, M.H. , Ye, Y.X. , Yu, G.W. , Yuan, C.Z. , Yuan, Y. , Zang, S.L. , Zeng, Y. , Zhang, B.X. , Zhang, B.Y. , Zhang, C.C. , Zhang, D.H. , Zhang, H.Q. , Zhang, H.Y. , Zhang, J.W. , Zhang, J.Y. , Zhang, S.H. , Zhang, X.Y. , Zhang, Yiyun , Zhang, Z.X. , Zhang, Z.P. , Zhao, D.X. , Zhao, J.W. , Zhao, M.G. , Zhao, P.P. , Zhao, W.R. , Zhao, Z.G. , Zheng, H.Q. , Zheng, J.P. , Zheng, Z.P. , Zhou, L. , Zhu, K.J. , Zhu, Q.M. , Zhu, Y.C. , Zhu, Y.S. , Zhu, Z.A. , Zhuang, B.A. , Zhuang, X.A. , Zou, B.S.
Source:
Physics Letters B . (2-3):149-155
Publisher Information:
Elsevier B.V.
Description:
With a sample of 14×106ψ(2S) events collected by the BESII detector at the Beijing Electron Positron Collider (BEPC), the decay channels ψ(2S)→B8B¯8(pp¯,ΛΛ¯,Σ0Σ¯0,Ξ−Ξ¯+) are measured, and their branching ratios are determined to be (3.36±0.09±0.25)×10−4, (3.39±0.20±0.32)×10−4, (2.35±0.36±0.32)×10−4, (3.03±0.40±0.32)×10−4, respectively. In the decay ψ(2S)→pp¯, the angular distribution parameter α is determined to be 0.85±0.24±0.04.
Language:
English
ISSN:
0370-2693
DOI:
10.1016/j.physletb.2007.02.029
Access URL:
https://explore.openaire.eu/search/publication?articleId=core_ac_uk__::8ccb3f47ca8416e3eb8aaeb048174709
Rights:
OPEN
Accession Number:
edsair.core.ac.uk....8ccb3f47ca8416e3eb8aaeb048174709
Database:
OpenAIRE