Newly observed X(4630): a new charmoniumlike molecule

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...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2021-09, Vol.81 (9), p.1-8, Article 807
Main Authors: Yang, Xin-Dian, Wang, Fu-Lai, Liu, Zhan-Wei, Liu, Xiang
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics and Cosmology
Collaboration
Elementary Particles
Hadrons
Heavy Ions
Large Hadron Collider
Measurement Science and Instrumentation
Nuclear Energy
Nuclear Physics
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Regular Article - Theoretical Physics
Spectrum analysis
String Theory
Symmetry
Theoretical physics
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Summary: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 / ψ ϕ 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.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-021-09606-7