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Search for the lepton flavor violation process J/psi -> e mu at BESIII
(American Physical Society, 2013-06-17)
We search for the lepton-flavor-violating decay of the J/psi into an electron and a muon using (225.3 +/- 2.8) x 10(6) J/psi events collected with the BESIII detector at the BEPCII. Four candidate events are found in the ...