Regular Article - Theoretical Physics
Newly observed X(4630): a new charmoniumlike molecule
School of Physical Science and Technology, Lanzhou University, 730000, Lanzhou, China
2 Research Center for Hadron and CSR Physics, Institute of Modern Physics of CAS, Lanzhou University, 730000, Lanzhou, China
3 Lanzhou Center for Theoretical Physics, Key Laboratory of Theoretical Physics of Gansu Province, Frontiers Science Center for Rare Isotopes, Lanzhou University, 730000, Lanzhou, China
Accepted: 28 August 2021
Published online: 12 September 2021
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 among all allowed hidden-charmed decays of the 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.
© The Author(s) 2021
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