Phys. Rev. Lett.
73,
1890–1894
(1994)
Search for Neutrinoless Decays of the Tau Lepton
J. Bartelt et al.
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J. Bartelt1, S. E. Csorna1, Z. Egyed1, V. Jain1, K. Kinoshita2, B. Barish3, M. Chadha3, S. Chan3, D. F. Cowen3, G. Eigen3, J. S. Miller3, C. O'Grady3, J. Urheim3, A. J. Weinstein3, D. Acosta4, M. Athanas4, G. Masek4, H. P. Paar4, M. Sivertz4, J. Gronberg5, R. Kutschke5, S. Menary5, R. J. Morrison5, S. Nakanishi5, H. N. Nelson5, T. K. Nelson5, C. Qiao5, J. D. Richman5, A. Ryd5, H. Tajima5, D. Sperka5, M. S. Witherell5, M. Procario6, R. Balest7, K. Cho7, M. Daoudi7, W. T. Ford7, D. R. Johnson7, K. Lingel7, M. Lohner7, P. Rankin7, J. G. Smith7, J. P. Alexander8, C. Bebek8, K. Berkelman8, K. Bloom8, T. E. Browder8,*, D. G. Cassel8, H. A. Cho8, D. M. Coffman8, D. S. Crowcroft8, P. S. Drell8, R. Ehrlich8, P. Gaidarev8, R. S. Galik8, M. Garcia-Sciveres8, B. Geiser8, B. Gittelman8, S. W. Gray8, D. L. Hartill8, B. K. Heltsley8, C. D. Jones8, S. L. Jones8, J. Kandaswamy8, N. Katayama8, P. C. Kim8, D. L. Kreinick8, G. S. Ludwig8, J. Masui8, J. Mevissen8, N. B. Mistry8, C. R. Ng8, E. Nordberg8, J. R. Patterson8, D. Peterson8, D. Riley8, S. Salman8, M. Sapper8, F. Würthwein8, P. Avery9, A. Freyberger9, J. Rodriguez9, R. Stephens9, S. Yang9, J. Yelton9, D. Cinabro10, S. Henderson10, T. Liu10, M. Saulnier10, R. Wilson10, H. Yamamoto10, T. Bergfeld11, B. I. Eisenstein11, G. Gollin11, B. Ong11, M. Palmer11, M. Selen11, J. J. Thaler11, K. W. Edwards12, M. Ogg12, A. Bellerive13, D. I. Britton13, E. R. F. Hyatt13, D. B. MacFarlane13, P. M. Patel13, B. Spaan13, A. J. Sadoff14, R. Ammar15, S. Ball15, P. Baringer15, A. Bean15, D. Besson15, D. Coppage15, N. Copty15, R. Davis15, N. Hancock15, M. Kelly15, S. Kotov15, I. Kravchenko15, N. Kwak15, H. Lam15, Y. Kubota16, M. Lattery16, M. Momayezi16, J. K. Nelson16, S. Patton16, D. Perticone16, R. Poling16, V. Savinov16, S. Schrenk16, R. Wang16, M. S. Alam17, I. J. Kim17, B. Nemati17, J. J. O'Neill17, H. Severini17, C. R. Sun17, M. M. Zoeller17, G. Crawford18, C. M. Daubenmier18, R. Fulton18, D. Fujino18, K. K. Gan18, K. Honscheid18, H. Kagan18, R. Kass18, J. Lee18, R. Malchow18, Y. Skovpen18,†, M. Sung18, C. White18, F. Butler19, X. Fu19, G. Kalbfleisch19, W. R. Ross19, P. Skubic19, M. Wood19, J. Fast20, R. L. McIlwain20, T. Miao20, D. H. Miller20, M. Modesitt20, D. Payne20, E. I. Shibata20, I. P. J. Shipsey20, P. N. Wang20, M. Battle21, J. Ernst21, L. Gibbons21, Y. Kwon21, S. Roberts21, E. H. Thorndike21, C. H. Wang21, J. Dominick22, M. Lambrecht22, S. Sanghera22, V. Shelkov22, T. Skwarnicki22, R. Stroynowski22, I. Volobouev22, G. Wei22, P. Zadorozhny22, M. Artuso23, M. Goldberg23, D. He23, N. Horwitz23, R. Kennett23, R. Mountain23, G. C. Moneti23, F. Muheim23, Y. Mukhin23, S. Playfer23, Y. Rozen23, S. Stone23, M. Thulasidas23, G. Vasseur23, X. Xing23, and G. Zhu23
1Vanderbilt University, Nashville, Tennessee 37235
2Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
3California Institute of Technology, Pasadena, California 91125
4University of California, San Diego, La Jolla, California 92093
5University of California, Santa Barbara, California 93106
6Carnegie Mellon University, Pittsburgh, Pennsylvania 15213
7University of Colorado, Boulder, Colorado 80309-0390
8Cornell University, Ithaca, New York 14853
9University of Florida, Gainesville, Florida 32611
10Harvard University, Cambridge, Massachusetts 02138
11University of Illinois, Champaign-Urbana, Illinois 61801
12Carleton University, Ottawa, Ontario K1S 5B6 and the Institute of Particle Physics, Canada
13McGill University, Montréal, Québec H3A 2T8 and the Institute of Particle Physics, Canada
14Ithaca College, Ithaca, New York 14850
15University of Kansas, Lawrence, Kansas 66045
16University of Minnesota, Minneapolis, Minnesota 55455
17State University of New York at Albany, Albany, New York 12222
18The Ohio State University, Columbus, Ohio 43210
19University of Oklahoma, Norman, Oklahoma 73019
20Purdue University, West Lafayette, Indiana 47907
21University of Rochester, Rochester, New York 14627
22Southern Methodist University, Dallas, Texas 75275
23Syracuse University, Syracuse, New York 13244
Received 6 June 1994; published in the issue dated 3 October 1994
A search for lepton flavor violating decays of the tau into either three charged leptons or one charged lepton and two charged hadrons was performed using 2.05 fb-1 of data collected by the CLEO-II experiment at the Cornell Electron Storage Ring. The upper limits obtained for 22 decay branching fractions are several times more stringent than those set previously.
© 1994 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.73.1890
DOI:
10.1103/PhysRevLett.73.1890
*Permanent address: University of Hawaii at Manoa, Hawaii. †Permanent address: INP, Novosibirsk, Russia.
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