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arXiv · 2009.01406

The role of $X(4140)$ and $X(4160)$ in the reactions of $B^+ \to J/\psi \phi K^+$

En Wang·Ju-Jun Xie·Li-Sheng Geng·Eulogio Oset
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Abstract

We have studied the $J/\psi\phi$ mass distribution of the process $B^+\to J/\psi\phi K^+$ from the threshold to about 4250 MeV, by considering the contribution of the $X(4140)$ with a narrow width, together with the $X(4160)$ state. Our results show that the cusp structure at the $D^*_s\bar{D}^*_s$ threshold is tied to the molecular nature of the $X(4160)$ state.

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En Wang, Ju-Jun Xie, Li-Sheng Geng, Eulogio Oset. 2020-09-03. The role of $X(4140)$ and $X(4160)$ in the reactions of $B^+ \to J/\psi \phi K^+$. https://doi.org/10.1142/9789811219313_0017

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