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1. chinaXiv:201703.00607 [pdf]

Study of the ρπ Puzzle in Charmonium Decays

MO Xiao-Hu; YUAN Chang-Zheng; WANG Pingz
Subjects: Physics >> Condensed Matter: Structural, Mechanical and Thermal Properties

The theoretical explanations about the "ρπ puzzle" in charmonium decays are reviewed exten-sively, and the comparison of theoretical predications with experimental data is made whenever possible. Three methods to estimate the ratio of the branching fractions of J/ψ and ψ′decays are also discussed. It is pointed out that in order to understand the ρπ puzzle, and the dynamics of charmonium decays, systematic studies should be made in theory, phenomenology and experiment aspects.

submitted time 2017-03-26 Hits13558Downloads923 Comment 0

2. chinaXiv:201703.00600 [pdf]

Determination of ψ(2S) Total Number by Inclusive Hadronic Decay

MO Xiao-Hu; ZHU Yong-Sheng; YUAN Chang-Zheng; FU Cheng-Dong; Li Gang
Subjects: Physics >> Condensed Matter: Structural, Mechanical and Thermal Properties

On the basis of the study of inclusive hadronic events, two methods are adopted to determine the number of produced ψ(2S) events collected by BES in 2001-2002 run, which is 14:0 ? 106 with the uncertainty of 4%.

submitted time 2017-03-26 Hits1439Downloads798 Comment 0

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