Phys. Rev. Lett.
90,
181802
(2003)
[5 pages]
Branching Fractions of τ Leptons to Three Charged Hadrons
R. A. Briere et al. CLEO Collaboration
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R. A. Briere1, G. P. Chen1, T. Ferguson1, G. Tatishvili1, H. Vogel1, N. E. Adam2, J. P. Alexander2, K. Berkelman2, V. Boisvert2, D. G. Cassel2, P. S. Drell2, J. E. Duboscq2, K. M. Ecklund2, R. Ehrlich2, R. S. Galik2, L. Gibbons2, B. Gittelman2, S. W. Gray2, D. L. Hartill2, B. K. Heltsley2, L. Hsu2, C. D. Jones2, J. Kandaswamy2, D. L. Kreinick2, A. Magerkurth2, H. Mahlke-Krüger2, T. O. Meyer2, N. B. Mistry2, J. R. Patterson2, D. Peterson2, J. Pivarski2, S. J. Richichi2, D. Riley2, A. J. Sadoff2, H. Schwarthoff2, M. R. Shepherd2, J. G. Thayer2, D. Urner2, T. Wilksen2, A. Warburton2, M. Weinberger2, S. B. Athar3, P. Avery3, L. Breva-Newell3, V. Potlia3, H. Stoeck3, J. Yelton3, K. Benslama4, B. I. Eisenstein4, G. D. Gollin4, I. Karliner4, N. Lowrey4, C. Plager4, C. Sedlack4, M. Selen4, J. J. Thaler4, J. Williams4, K. W. Edwards5, D. Besson6, X. Zhao6, S. Anderson7, V. V. Frolov7, D. T. Gong7, Y. Kubota7, S. Z. Li7, R. Poling7, A. Smith7, C. J. Stepaniak7, J. Urheim7, Z. Metreveli8, K. K. Seth8, A. Tomaradze8, P. Zweber8, S. Ahmed9, M. S. Alam9, J. Ernst9, L. Jian9, M. Saleem9, F. Wappler9, K. Arms10, E. Eckhart10, K. K. Gan10, C. Gwon10, K. Honscheid10, D. Hufnagel10, H. Kagan10, R. Kass10, T. K. Pedlar10, E. von Toerne10, M. M. Zoeller10, H. Severini11, P. Skubic11, S. A. Dytman12, J. A. Mueller12, S. Nam12, V. Savinov12, J. W. Hinson13, J. Lee13, D. H. Miller13, V. Pavlunin13, B. Sanghi13, E. I. Shibata13, I. P. J. Shipsey13, D. Cronin-Hennessy14, A. L. Lyon14, C. S. Park14, W. Park14, J. B. Thayer14, E. H. Thorndike14, T. E. Coan15, Y. S. Gao15, F. Liu15, Y. Maravin15, R. Stroynowski15, M. Artuso16, C. Boulahouache16, S. Blusk16, K. Bukin16, E. Dambasuren16, R. Mountain16, H. Muramatsu16, R. Nandakumar16, T. Skwarnicki16, S. Stone16, J. C. Wang16, A. H. Mahmood17, S. E. Csorna18, I. Danko18, G. Bonvicini19, D. Cinabro19, M. Dubrovin19, S. McGee19, A. Bornheim20, E. Lipeles20, S. P. Pappas20, A. Shapiro20, W. M. Sun20, and A. J. Weinstein20 (CLEO Collaboration)
1Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
2Cornell University, Ithaca, New York 14853, USA
3University of Florida, Gainesville, Florida 32611, USA
4University of Illinois, Urbana-Champaign, Illinois 61801, USA
5Carleton University, Ottawa, Ontario, Canada K1S 5B6 and the Institute of Particle Physics, Canada M5S 1A7
6University of Kansas, Lawrence, Kansas 66045, USA
7University of Minnesota, Minneapolis, Minnesota 55455, USA
8Northwestern University, Evanston, Illinois 60208, USA
9State University of New York at Albany, Albany, New York 12222, USA
10The Ohio State University, Columbus, Ohio 43210, USA
11University of Oklahoma, Norman, Oklahoma 73019, USA
12University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
13Purdue University, West Lafayette, Indiana 47907, USA
14University of Rochester, Rochester, New York 14627, USA
15Southern Methodist University, Dallas, Texas 75275, USA
16Syracuse University, Syracuse, New York 13244, USA
17University of Texas–Pan American, Edinburg, Texas 78539, USA
18Vanderbilt University, Nashville, Tennessee 37235, USA
19Wayne State University, Detroit, Michigan 48202, USA
20California Institute of Technology, Pasadena, California 91125, USA
Received 20 February 2003; published 6 May 2003
From electron-positron collision data collected with the CLEO detector operating at Cornell Electron Storage Ring near √s=10.6 GeV, improved measurements of the branching fractions for τ decays into three explicitly identified hadrons and a neutrino are presented as B(τ-→π-π+π-ντ)=(9.13±0.05±0.46)%, B(τ-→K-π+π-ντ)=(3.84±0.14±0.38)×10-3, B(τ-→K-K+π-ντ)=(1.55±0.06±0.09)×10-3, and B(τ-→K-K+K-ντ)<3.7×10-5 at 90% C.L., where the uncertainties are statistical and systematic, respectively.
© 2003 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.90.181802
DOI:
10.1103/PhysRevLett.90.181802
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