The observation of the Y (4140) structure in B± → J/ψφK± decays produced sqrt(s) = 1.96 TeV is reported with a statistical significance greater than 5 standard deviations.
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eng
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Modern physics Letters A
dc.title
Observation of the Y(4140) structure in the J/ψϕ mass spectrum in B±→J/ψϕK± decays