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

Xin-Dian Yang; Fu-Lai Wang; Zhan-Wei Liu; Xiang Liu

doi:10.1140/epjc/s10052-021-09606-7

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

High Energy Physics - Phenomenology 2021-09-16 v2

Authors: Xin-Dian Yang , Fu-Lai Wang , Zhan-Wei Liu , Xiang Liu

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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.

Keywords

x(4630) charmoniumlike molecule hidden-strange one boson exchange hidden-charmed decays lhc

Cite

@article{arxiv.2103.03127,
  title  = {Newly observed $X(4630)$: a new charmoniumlike molecule},
  author = {Xin-Dian Yang and Fu-Lai Wang and Zhan-Wei Liu and Xiang Liu},
  journal= {arXiv preprint arXiv:2103.03127},
  year   = {2021}
}

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8 pages, 5 figures; accepted by Euro. Phys. J. C

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

Abstract

Keywords

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