Event Generator for ψ′Decays of VP and PP Modes

YE ShuWei; ZHAO JiaWei; CHEN HongFang; ZHANG ZiPing

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《中国物理C》（英文）编辑部

2024年10月30日

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

[1]

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[3]	ZENG Zhuo-Quan , GUO Xin-Heng , SHEN Peng-Nian , DING Yi-Bing . pp final state interaction in J=/ψ→γpp. Chinese Physics C, 2012, 36(5): 399-402. doi: 10.1088/1674-1137/36/5/004
[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]	YANG Hong-Xun (for the BESⅡ collaboration) . Partial wave analysis of J/ψ→ppπ⁰ and measurement of J/ψ→ppη, ppη´. Chinese Physics C, 2009, 33(12): 1331-1335. doi: 10.1088/1674-1137/33/12/048
[6]	CAO Xu . N^*(1535) contribution in pp→ppη´ and pn→dφ. Chinese Physics C, 2009, 33(12): 1381-1384. doi: 10.1088/1674-1137/33/12/060
[7]	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.
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[10]	LIANG Wei-Hong , SHEN Peng-Nian , ZOU Bing-Song . Theoretical Formalism for N* Study via J/ψ→ppω Decay Process. Chinese Physics C, 2002, 26(S1): 93-97.
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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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1.
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.