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arXiv · 2407.16316

Discovering an Unquenched Dynamics Mechanism for Charmonium Scattering

Qi Huang·Rui Chen·Jun He·Xiang Liu
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Abstract

In this work, we propose an unquenched mechanism for charmonium scattering that utilizes the internal structure of charmonium. By capturing light flavor quarks and anti-quarks from the vacuum, charm and anti-charm quarks form virtual charmed mesons, which mediate an effective one-boson exchange process. This approach accurately reproduces the di-$J/\psi$ invariant mass spectrum observed by CMS and LHCb, demonstrating its validity. Our mechanism offers a comprehensive framework for understanding charmonium scattering and is applicable to the scattering problems involving all fully heavy hadrons, an area of increasing interest.

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Qi Huang, Rui Chen, Jun He, Xiang Liu. 2024-07-23. Discovering an Unquenched Dynamics Mechanism for Charmonium Scattering. https://doi.org/10.1103/lgmp-h4tb

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