期刊
EUROPEAN PHYSICAL JOURNAL C
卷 81, 期 9, 页码 -出版社
SPRINGER
DOI: 10.1140/epjc/s10052-021-09606-7
关键词
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资金
- China National Funds for Distinguished Young Scientists [11825503]
- National Key Research and Development Program of China [2020YFA0406400]
- 111 Project [B20063]
- National Natural Science Foundation of China [12047501, 12175091, 11965016]
- CAS Interdisciplinary Innovation Team
- Fundamental Research Funds for the Central Universities [lzujbky-2021-sp24]
The LHCb Collaboration at the Large Hadron Collider at CERN recently observed a new resonance X(4630), identified as a charmoniumlike molecule with hidden-strange quantum number. The study of its hidden-charmed decays highlighted the dominant role of J/psi phi among all allowed hidden-charmed decays, providing further evidence for X(4630) as a charmoniumlike molecule. This discovery marks a significant step in the construction of the charmoniumlike molecule zoo.
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 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.
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