Newly observed $X(4630)$: a new charmoniumlike molecule

TL;DR

The paper interprets the recently observed $X(4630)$ resonance as a charmoniumlike molecule with hidden-strange quantum numbers, emphasizing its dominant decay mode and contributing to the understanding of exotic hadron states.

Contribution

It provides a theoretical interpretation of $X(4630)$ as a charmoniumlike molecule using the one boson exchange mechanism, highlighting its decay properties and quantum numbers.

Findings

$X(4630)$ is a charmoniumlike molecule with hidden-strange quantum number.

The dominant decay mode of $X(4630)$ is $J/\,\phi$.

Supports the classification of $X(4630)$ as part of the charmoniumlike molecule zoo.

Abstract

Very recently, the LHCb Collaboration at the Large Hadron Collider at CERN observed new resonance $X(4630)$. The $X(4630)$ is decoded as a charmoniumlike molecule with hidden-strange quantum number well in the one boson exchange mechanism. Especially, the study of its hidden-charmed decays explicitly shows the dominant role of $J/\psi\phi$ among all allowed hidden-charmed decays of $X(4630)$, which enforces the conclusion of $X(4630)$ as a charmoniumlike molecule. The discovery of the $X(4630)$ is a crucial step of constructing charmoniumlike molecule zoo.