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15–19 Nov 2021
Institute of High Energy Physics (IHEP), CAS
Asia/Shanghai timezone

Possible bound states of J/ψJ/ψ

Not scheduled
15m
Institute of High Energy Physics (IHEP), CAS

Institute of High Energy Physics (IHEP), CAS

19B Yuquan Road, Shijingshan District, Beijing, China
Parallel-Hadron Structure

Speaker

相坤 董 (理论所)

Description

In a recent measurement LHCb reported pronounced structures in the $J/\psi J/\psi$ spectrum. One of the various possible explanations of those is that they emerge from non-perturbative interactions of vector charmonia. It is thus important to understand whether it is possible to form a bound state of two charmonia interacting through the exchange of gluons, which hadronise into two pions at the longest distance. In this paper, we demonstrate that, given our current understanding of hadron-hadron interactions, the exchange of correlated light mesons (pions and kaons) is able to provide sizeable attraction to the di-$J/\psi$ system, and it is possible for two $J/\psi$ mesons to form a bound state.

Primary author

相坤 董 (理论所)

Presentation materials

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