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Radiative decay of the Ψ(2S) into two pseudoscalar mesons

  • J. Z. Bai
  • , Y. Ban
  • , J. G. Bian
  • , I. Blum
  • , A. D. Chen
  • , G. P. Chen
  • , H. F. Chen
  • , H. S. Chen
  • , J. Chen
  • , J. C. Chen
  • , X. D. Chen
  • , Y. Chen
  • , Y. B. Chen
  • , B. S. Cheng
  • , J. B. Choi
  • , X. Z. Cui
  • , H. L. Ding
  • , L. Y. Dong
  • , Z. Z. Du
  • , W. Dunwoodie
  • C. S. Gao, M. L. Gao, S. Q. Gao, P. Gratton, J. H. Gu, S. D. Gu, W. X. Gu, Y. N. Guo, Z. J. Guo, S. W. Han, Y. Han, F. A. Harris, J. He, J. T. He, K. L. He, M. He, Y. K. Heng, D. G. Hitlin, G. Y. Hu, H. M. Hu, J. L. Hu, Q. H. Hu, T. Hu, G. S. Huang, X. P. Huang, Y. Z. Huang, J. M. Izen, C. H. Jiang, Y. Jin, B. D. Jones, X. Ju, J. S. Kang, Z. J. Ke, M. H. Kelsey, B. K. Kim, H. J. Kim, S. K. Kim, T. Y. Kim, D. Kong, Y. F. Lai, P. F. Lang, A. Lankford, C. G. Li, D. Li, H. B. Li, J. Li, J. C. Li, P. Q. Li, W. Li, W. G. Li, X. H. Li, X. N. Li, X. Q. Li, Z. C. Li, B. Liu, F. Liu, Feng Liu, H. M. Liu, J. Liu, J. P. Liu, R. G. Liu, Y. Liu, Z. X. Liu, X. C. Lou, B. Lowery, G. R. Lu, F. Lu, J. G. Lu, X. L. Luo, E. C. Ma, J. M. Ma, R. Malchow, H. S. Mao, Z. P. Mao, X. C. Meng, X. H. Mo, J. Nie, S. L. Olsen, J. Oyang
  • CAS - Institute of High Energy Physics
  • Peking University
  • University of Texas at Dallas
  • University of Science and Technology of China
  • Colorado State University
  • Jeonbuk National University
  • Stanford Linear Accelerator Center, Stanford University
  • University of Hawai'i at Mānoa
  • Shandong University
  • California Institute of Technology
  • China Center of Advanced Science and Technology World Laboratory
  • Korea University
  • Seoul National University
  • University of California at Irvine
  • Nankai University
  • Central China Normal University
  • Wuhan University
  • Henan Normal University

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Radiative decays of the radially excited charmonium resonance, Ψ(2S), into ππ, KK̄ and ηη final states have been measured in a sample of 4.02×106 Ψ(2S) events collected by the BES Collaboration. The branching ratios B(Ψ(2S)→γf 2(1270))=(2.12±0.19±0.32) × 10-4 and B(Ψ(2S)→γf0(1710))×B(f0(1710) →K+K-=(3.02±0.45±0.66)×10 -5 are obtained. When compared to the corresponding radiative J/Ψ decays, the observed Ψ(2S) radiative decay rates into γf 2(1270) and γf00(1710) are consistent with the prediction of the "12%" rule.

Original languageEnglish
Article number032004
JournalPhysical Review D
Volume67
Issue number3
DOIs
StatePublished - 2003

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