X(1870) and η₂(1870): Which can be assigned as a hybrid state?
Bing, Chen · Wei, Ke-Wei · Zhang, Ailin
Original · EN
The mass spectrum and strong decays of the X(1870) and η₂(1870) are analyzed. Our results indicate that X(1870) and η₂(1870) are the two different resonances. The narrower X(1870) seems likely a good hybrid candidate. We support the η₂(1870) as the η₂(2¹D₂) quarkonium. We suggest to search the isospin partner of X(1870) in the channels of J/ψ→ρf₀(980)π and J/ψ→ρb₁(1235)π in the future. The latter channel is very important for testing the hybrid scenario.
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