Analysis of the charmonium-like states X<sup>*</sup>(3860), X(3872), X(3915), X(3930) and X(3940) according to their strong decay behaviors

Guo-Liang Yu; Zhi-Gang Wang; Zhen-Yu Li

doi:10.1088/1674-1137/42/4/043107

Chinese Physics C> 2018, Vol. 42> Issue(4) : 043107 DOI: 10.1088/1674-1137/42/4/043107

Analysis of the charmonium-like states X^*(3860), X(3872), X(3915), X(3930) and X(3940) according to their strong decay behaviors

1.
Department of Mathematics and Physics, North China Electric Power University, Baoding 071003, China
2.
School of Physics and Electronic Science, Guizhou Normal College, Guiyang 550018, China

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Abstract：
Inspired by the newly observed state X^*(3860), we analyze the strong decay behaviors of some charmonium-like states, X^*(3860), X(3872), X(3915), X(3930) and X(3940), with the ³P₀ model. We carry out our work based on the hypothesis that all of these states are charmonium systems. Our analysis indicates that, as a 0⁺⁺ charmonium state, X^*(3860) can reproduce the experimental data. As for X(3872), it can tentatively be interpreted as the mixture of a m cc system and a D^*0D⁰ molecular state. If we consider X(3940) as a 3¹S₀ state, its total width in the present work is much lower than the experimental result. Thus, the 3¹S₀ charmonium state seems not to be a good candidate for X(3940). Furthermore, our analysis implies that it is reasonable to assign X(3915) and X(3930) to be the same state, 2⁺⁺. However, combining our analysis with that in Refs.[14,71], we speculate that X(3915)/X(3930) might also be the mixture of a m cc system and a molecular state.
- 3P0 ,
- strong decay ,
- charmonia

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Guo-Liang Yu, Zhi-Gang Wang and Zhen-Yu Li. Analysis of the charmonium-like states X^*(3860), X(3872), X(3915), X(3930) and X(3940) according to their strong decay behaviors[J]. Chinese Physics C, 2018, 42(4): 043107. doi: 10.1088/1674-1137/42/4/043107

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沈阳化工大学材料科学与工程学院沈阳 110142

Analysis of the charmonium-like states X^*(3860), X(3872), X(3915), X(3930) and X(3940) according to their strong decay behaviors

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Analysis of the charmonium-like states X^*(3860), X(3872), X(3915), X(3930) and X(3940) according to their strong decay behaviors

Corresponding author: Guo-Liang Yu,

Corresponding author: Zhi-Gang Wang,

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Analysis of the charmonium-like states X*(3860), X(3872), X(3915), X(3930) and X(3940) according to their strong decay behaviors

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通讯作者: 陈斌, [email protected]

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Analysis of the charmonium-like states X*(3860), X(3872), X(3915), X(3930) and X(3940) according to their strong decay behaviors

Corresponding author: Guo-Liang Yu,

Corresponding author: Zhi-Gang Wang,

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Analysis of the charmonium-like states X^*(3860), X(3872), X(3915), X(3930) and X(3940) according to their strong decay behaviors

Analysis of the charmonium-like states X^*(3860), X(3872), X(3915), X(3930) and X(3940) according to their strong decay behaviors