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arXiv · 2410.14521

Nature of X(3872) from recent BESIII data: Considering the universal feature of an S-wave threshold resonance

Xian-Wei Kang·Jin-Zhe Zhang·Xin-Heng Guo
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Abstract

We analyze the recent data from the BESIII collaboration on the $X(3872)$ state in the $J/\psi\pi^+\pi^-$ and $D^0\bar{D}^0\pi^0$ decay channels. The quantum number and mass of the $X(3872)$ state allow us to exploit the universal feature of the very near-threshold $D\bar D^*$ scattering in the $S$ wave. The analysis of $J/\psi\pi^+\pi^-$ data and $D^0\bar{D}^0\pi^0$ data separately as well as the combined analysis of these data together, all support the conclusion that $X(3872)$ is an extremely weakly bound charm meson molecule.

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Xian-Wei Kang, Jin-Zhe Zhang, Xin-Heng Guo. 2024-10-18. Nature of X(3872) from recent BESIII data: Considering the universal feature of an S-wave threshold resonance. https://arxiv.org/abs/2410.14521

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