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Q57704024-E440A54A-609C-443F-8625-11C4E6665BBB
Q57704024-E440A54A-609C-443F-8625-11C4E6665BBB
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http://www.wikidata.org/entity/statement/Q57704024-E440A54A-609C-443F-8625-11C4E6665BBB
Measurement of the branching fractions forJ/ψ→ℓ+ℓ−
P2860
Q57704024-E440A54A-609C-443F-8625-11C4E6665BBB
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http://www.wikidata.org/entity/statement/Q57704024-E440A54A-609C-443F-8625-11C4E6665BBB
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e03b45d7b8df7e3622f94e82cec04ec2c88f30c2
P2860
Determination ofJ/ψleptonic branching fraction viaψ(2S)→π+π−J/ψ