Chinese Physics C > 2000, Vol. 24 > Issue(3): 185-189

Event Generator for ψ′Decays of VP and PP Modes

Department of Modern Physics, University of Science & Technology of China, Hefei 230027, China

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Abstract：
A convenient generator, based on the existing framework of BES simulation, applicable generally to both ψ′ and J/ψ decays of VP and PP modes, is established. The corresponding angular distribution is taken into account. A similar generator is also established for the successive J/ψ decay in the process of ψ′→X+ J/ψ. In the measurement of branching ratios for ψ'→γη, γη′, ωπ ^o, π ⁺π ^－, K ⁺K ^－, this generator is used to determine the selection efficiency and estimate the background.

References

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[2]	HUANG Jin-Shu,SUN Jun-Feng,LU Gong-Ru,LI Hai-Bo. Properties of the coupling constants of J/ψ→VP decays. Chinese Physics C, 2013, 37(7): 073103.doi:10.1088/1674-1137/37/7/073103
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[4]	P. G. Ortega,D. R. Entem,F. Fernandez. ΛΛ production in pp collisions. Chinese Physics C, 2010, 34(9): 1462-1464.doi:10.1088/1674-1137/34/9/072
[5]	M. Ablikim (BESⅢ collaboration). Observation of a pp mass threshold enhancement in ψ′→π⁺π^－J/ψ(J/ψ→γpp) decay. Chinese Physics C, 2010, 34(4): 421-426.doi:10.1088/1674-1137/34/4/001
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[8]	JIAO Jian-Bin,ZHU Yong-Sheng,ZHANG Xue-Yao. Efficiency Correction in the Measurement of ψ′→pp Angular Distribution. Chinese Physics C, 2006, 30(10): 931-935.
[9]	JIANG Xing-Yu,FANG Shuang-Shi,ZHU Yu-Can,LU Gong-Ru. Pseudoscalar-Meson Mixing in ψ(2S)→VP Decays. Chinese Physics C, 2006, 30(8): 724-730.
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YE ShuWei, ZHAO JiaWei, CHEN HongFang and ZHANG ZiPing. Event Generator for ψ′Decays of VP and PP Modes[J]. Chinese Physics C, 2000, 24(3): 185-189.

YE ShuWei, ZHAO JiaWei, CHEN HongFang and ZHANG ZiPing. Event Generator for ψ′Decays of VP and PP Modes[J]. Chinese Physics C, 2000, 24(3): 185-189. shu

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Received: 1999-02-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Event Generator for ψ′Decays of VP and PP Modes

Corresponding author:YE ShuWei,

Department of Modern Physics, University of Science & Technology of China, Hefei 230027, China

Received Date:1999-02-01
Accepted Date:1900-01-01
Available Online:2000-03-05

Abstract:A convenient generator, based on the existing framework of BES simulation, applicable generally to both ψ′ and J/ψ decays of VP and PP modes, is established. The corresponding angular distribution is taken into account. A similar generator is also established for the successive J/ψ decay in the process of ψ′→X+ J/ψ. In the measurement of branching ratios for ψ'→γη, γη′, ωπ^o, π⁺π^－, K⁺K^－, this generator is used to determine the selection efficiency and estimate the background.