Efficiency Correction in the Branching Fraction Determination of ψ′Hadronic Decays

  • The detection efficiency corrections for the particle identification and kinematic fit selection criteria are investigated for the branching fraction measurements in ψ′decays into ωπ+π, b1π,ωf2(1270), ωK+K, ωp, φπ+π, φf0(980),φK+K, φp final states using 4×106ψ′data sample collected at BEPC/BES. Based on the corrected efficiencies, the preliminary results of these decay channels have been obtained, and the "12%" rule predicted by perturbative QCD theory has been tested.
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WANG Wen-Feng, ZHU Yong-Sheng and ZHANG Xue-Yao. Efficiency Correction in the Branching Fraction Determination of ψ′Hadronic Decays[J]. Chinese Physics C, 2003, 27(2): 89-94.
WANG Wen-Feng, ZHU Yong-Sheng and ZHANG Xue-Yao. Efficiency Correction in the Branching Fraction Determination of ψ′Hadronic Decays[J]. Chinese Physics C, 2003, 27(2): 89-94. shu
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Received: 2002-04-12
Revised: 1900-01-01
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Efficiency Correction in the Branching Fraction Determination of ψ′Hadronic Decays

    Corresponding author: WANG Wen-Feng,
  • Institute of High Energy Physics, CAS, Beijing 100039, China2 Department of Physics, Shandong University, Ji′nan 250100, China

Abstract: The detection efficiency corrections for the particle identification and kinematic fit selection criteria are investigated for the branching fraction measurements in ψ′decays into ωπ+π, b1π,ωf2(1270), ωK+K, ωp, φπ+π, φf0(980),φK+K, φp final states using 4×106ψ′data sample collected at BEPC/BES. Based on the corrected efficiencies, the preliminary results of these decay channels have been obtained, and the "12%" rule predicted by perturbative QCD theory has been tested.

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