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 ³ P ₀model. 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 c csystem and a D ^*0D ⁰molecular state. If we consider X(3940) as a 3 ¹ S ₀state, its total width in the present work is much lower than the experimental result. Thus, the 3 ¹ S ₀charmonium 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 c csystem 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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通讯作者:陈斌, bchen63@163.com

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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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