@article{8c8c0655768c4eee9983b63eef39ea6c,
title = "Tau Decays into Three Charged Leptons and Two Neutrinos",
abstract = "We search for the radiative leptonic tau decays τ→ee+e−ντνe and τ→μe+e−ντνμ using 3.60fb−1 of data collected by the CLEO-II experiment at the Cornell Electron Storage Ring. We present a first observation of the τ→ee+e−ντνe process. For this channel we measure the branching fraction B(τ→ee+e−ντνe) = (2.7+1.5+0.4+0.1−1.1−0.4−0.3)×10−5. An upper limit is established for the second channel: B(τ→μe+e−ντνμ) < 3.2 × 10−5 at 90% C.L. Both results are consistent with the rates expected from standard model predictions.",
author = "{CLEO Collaboration} and Alam, {M. S.} and Kim, {I. J.} and Z. Ling and Mahmood, {A. H.} and O{\textquoteright}neill, {J. J.} and H. Severini and Sun, {C. R.} and S. Timm and F. Wappler and Duboscq, {J. E.} and R. Fulton and D. Fujino and Gan, {K. K.} and K. Honscheid and H. Kagan and R. Kass and J. Lee and M. Sung and C. White and R. Wanke and A. Wolf and Zoeller, {M. M.} and X. Fu and B. Nemati and Richichi, {S. J.} and Ross, {W. R.} and P. Skubic and M. Wood and M. Bishai and J. Fast and E. Gerndt and Hinson, {J. W.} and T. Miao and Miller, {D. H.} and M. Modesitt and Shibata, {E. I.} and Shipsey, {I. P.J.} and Wang, {P. N.} and L. Gibbons and Johnson, {S. D.} and Y. Kwon and S. Roberts and Thorndike, {E. H.} and Jessop, {C. P.} and K. Lingel and H. Marsiske and Perl, {M. L.} and M. Artuso and T. Skwarnicki and S. Stone",
year = "1996",
doi = "10.1103/PhysRevLett.76.2637",
language = "English (US)",
volume = "76",
pages = "2637--2641",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "15",
}