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Observation of J/ψϕ Structures Consistent with Exotic States from Amplitude Analysis of B+→J/ψϕK+ Decays
49-mathematical-sciences-for-202051-physical-sciences-for-20205106-nuclear-and-plasma-physics-for-2020
The first full amplitude analysis of B^{+}→J/ψϕK^{+} with J/ψ→μ^{+}μ^{-}, ϕ→K^{+}K^{-} decays is performed with a data sample of 3 fb^{-1} of pp collision data collected at sqrt[s]=7 and 8 TeV with the LHCb detector. The data cannot be described by a model that contains only excited kaon state
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