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Sandilya, S.*; 谷田 聖; Belle Collaboration*; 他211名*
Physical Review D, 98(7), p.071101_1 - 071101_8, 2018/10
被引用回数:5 パーセンタイル:27.79(Astronomy & Astrophysics)We have searched for the lepton-flavor-violating decay using a data sample of 711 fb that contains pairs. The data were collected near the resonance with the Belle detector at the KEKB asymmetric-energy collider. No signals were observed, and we set 90% confidence level upper limits on the branching fractions of , , and, for both decays combined, . These are the most stringent limits on these decays to date.