Example：10.1021/acsami.1c06204 or Chem. Rev., 2007, 107, 2411-2502
Upper limits on branching ratios of the lepton-flavor-violating decaysτ→ℓγγandτ→ℓX Physical Review D (IF5.296), Pub Date : 2021-10-25, DOI: 10.1103/physrevd.104.075032 Douglas Bryman, Shintaro Ito, Robert Shrock
From analysis of data produced by the BABAR experiment, the first upper bounds (90% C.L.) were obtained on the branching ratios and . In addition, improved upper bounds (95% C.L.) were found on branching ratios and , where is an undetected weakly interacting boson with mass .