Phys. Rev. Lett.
93,
241802
(2004)
[5 pages]
Search for the Lepton-Flavor-Violating Leptonic B0→μ±τ∓ and B0→e±τ∓
A. Bornheim et al. CLEO Collaboration
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A. Bornheim1, E. Lipeles1, S. P. Pappas1, A. J. Weinstein1, R. A. Briere2, G. P. Chen2, T. Ferguson2, G. Tatishvili2, H. Vogel2, M. E. Watkins2, N. E. Adam3, J. P. Alexander3, K. Berkelman3, D. G. Cassel3, J. E. Duboscq3, K. M. Ecklund3, R. Ehrlich3, L. Fields3, R. S. Galik3, L. Gibbons3, B. Gittelman3, R. Gray3, S. W. Gray3, D. L. Hartill3, B. K. Heltsley3, D. Hertz3, L. Hsu3, C. D. Jones3, J. Kandaswamy3, D. L. Kreinick3, V. E. Kuznetsov3, H. Mahlke-Krüger3, T. O. Meyer3, P. U. E. Onyisi3, J. R. Patterson3, D. Peterson3, J. Pivarski3, D. Riley3, J. L. Rosner3,*, A. Ryd3, A. J. Sadoff3, H. Schwarthoff3, M. R. Shepherd3, W. M. Sun3, J. G. Thayer3, D. Urner3, T. Wilksen3, M. Weinberger3, S. B. Athar4, P. Avery4, L. Breva-Newell4, R. Patel4, V. Potlia4, H. Stoeck4, J. Yelton4, P. Rubin5, C. Cawlfield6, B. I. Eisenstein6, G. D. Gollin6, I. Karliner6, D. Kim6, N. Lowrey6, P. Naik6, C. Sedlack6, M. Selen6, J. J. Thaler6, J. Williams6, J. Wiss6, K. W. Edwards7, D. Besson8, K. Y. Gao9, D. T. Gong9, Y. Kubota9, S. Z. Li9, R. Poling9, A. W. Scott9, A. Smith9, C. J. Stepaniak9, J. Urheim9, Z. Metreveli10, K. K. Seth10, A. Tomaradze10, P. Zweber10, J. Ernst11, K. Arms12, K. K. Gan12, H. Severini13, P. Skubic13, D. M. Asner14, S. A. Dytman14, S. Mehrabyan14, J. A. Mueller14, V. Savinov14, Z. Li15, A. Lopez15, H. Mendez15, J. Ramirez15, G. S. Huang16, D. H. Miller16, V. Pavlunin16, B. Sanghi16, E. I. Shibata16, I. P. J. Shipsey16, G. S. Adams17, M. Chasse17, J. P. Cummings17, I. Danko17, J. Napolitano17, D. Cronin-Hennessy18, C. S. Park18, W. Park18, J. B. Thayer18, E. H. Thorndike18, T. E. Coan19, Y. S. Gao19, F. Liu19, R. Stroynowski19, M. Artuso20, C. Boulahouache20, S. Blusk20, J. Butt20, E. Dambasuren20, O. Dorjkhaidav20, N. Menaa20, R. Mountain20, H. Muramatsu20, R. Nandakumar20, R. Redjimi20, R. Sia20, T. Skwarnicki20, S. Stone20, J. C. Wang20, K. Zhang20, A. H. Mahmood21, S. E. Csorna22, G. Bonvicini23, D. Cinabro23, and M. Dubrovin23 (CLEO Collaboration)
1California Institute of Technology, Pasadena, California 91125, USA
2Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
3Cornell University, Ithaca, New York 14853, USA
4University of Florida, Gainesville, Florida 32611, USA
5George Mason University, Fairfax, Virginia 22030, USA
6University of Illinois, Urbana-Champaign, Illinois 61801, USA
7Carleton University, Ottawa, Ontario, Canada K1S 5B6 and the Institute of Particle Physics, Canada
8University of Kansas, Lawrence, Kansas 66045, USA
9University of Minnesota, Minneapolis, Minnesota 55455, USA
10Northwestern University, Evanston, Illinois 60208, USA
11State University of New York at Albany, Albany, New York 12222, USA
12Ohio State University, Columbus, Ohio 43210, USA
13University of Oklahoma, Norman, Oklahoma 73019, USA
14University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
15University of Puerto Rico, Mayaguez, Puerto Rico 00681
16Purdue University, West Lafayette, Indiana 47907, USA
17Rensselaer Polytechnic Institute, Troy, New York 12180, USA
18University of Rochester, Rochester, New York 14627, USA
19Southern Methodist University, Dallas, Texas 75275, USA
20Syracuse University, Syracuse, New York 13244, USA
21University of Texas-Pan American, Edinburg, Texas 78539, USA
22Vanderbilt University, Nashville, Tennessee 37235, USA
23Wayne State University, Detroit, Michigan 48202, USA
Received 6 August 2004; published 8 December 2004
We have searched a sample of 9.6×106 BB̅ events for the lepton-flavor-violating leptonic B decays, B0→μ±τ∓ and B0→e±τ∓. The τ lepton was detected through the decay modes τ→ℓνν̅ , where ℓ=e,μ. There is no indication of a signal, and we obtain the 90% confidence level upper limits B(B0→μ±τ∓)<3.8×10-5 and B(B0→e±τ∓)<1.3×10-4.
© 2004 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.93.241802
DOI:
10.1103/PhysRevLett.93.241802
PACS:
13.20.He, 11.30.Hv, 14.40.Nd
*On leave of absence from University of Chicago.
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