Discovering an Unquenched Dynamics Mechanism for Charmonium Scattering
High Energy Physics - Phenomenology
2026-04-08 v2
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- 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.
Keywords
Cite
@article{arxiv.2407.16316,
title = {Discovering an Unquenched Dynamics Mechanism for Charmonium Scattering},
author = {Qi Huang and Rui Chen and Jun He and Xiang Liu},
journal= {arXiv preprint arXiv:2407.16316},
year = {2026}
}