Phys. Rev. Lett.
75,
3809–3813
(1995)
Measurements of the Decays τ-→h-h+h-ντ and τ-→h-h+h-π0ντ
R. Balest et al. (CLEO Collaboration)
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R. Balest1, K. Cho1, W. T. Ford1, M. Lohner1, H. Park1, P. Rankin1, J. G. Smith1, J. P. Alexander2, C. Bebek2, B. E. Berger2, K. Berkelman2, K. Bloom2, T. E. Browder2,*, D. G. Cassel2, H. A. Cho2, D. M. Coffman2, D. S. Crowcroft2, M. Dickson2, P. S. Drell2, D. J. Dumas2, R. Ehrlich2, R. Elia2, P. Gaidarev2, M. Garcia-Sciveres2, B. Gittelman2, S. W. Gray2, D. L. Hartill2, B. K. Heltsley2, S. Henderson2, C. D. Jones2, S. L. Jones2, J. Kandaswamy2, N. Katayama2, P. C. Kim2, D. L. Kreinick2, T. Lee2, Y. Liu2, G. S. Ludwig2, J. Masui2, J. Mevissen2, N. B. Mistry2, C. R. Ng2, E. Nordberg2, J. R. Patterson2, D. Peterson2, D. Riley2, A. Soffer2, P. Avery3, A. Freyberger3, K. Lingel3, C. Prescott3, J. Rodriguez3, S. Yang3, J. Yelton3, G. Brandenburg4, D. Cinabro4, T. Liu4, M. Saulnier4, R. Wilson4, H. Yamamoto4, T. Bergfeld5, B. I. Eisenstein5, J. Ernst5, G. E. Gladding5, G. D. Gollin5, M. Palmer5, M. Selen5, J. J. Thaler5, K. W. Edwards6, K. W. McLean6, M. Ogg6, A. Bellerive7, D. I. Britton7, E. R. F. Hyatt7, R. Janicek7, D. B. MacFarlane7, P. M. Patel7, B. Spaan7, A. J. Sadoff8, R. Ammar9, P. Baringer9, A. Bean9, D. Besson9, D. Coppage9, N. Copty9, R. Davis9, N. Hancock9, S. Kotov9, I. Kravchenko9, N. Kwak9, Y. Kubota10, M. Lattery10, M. Momayezi10, J. K. Nelson10, S. Patton10, R. Poling10, V. Savinov10, S. Schrenk10, R. Wang10, M. S. Alam11, I. J. Kim11, Z. Ling11, A. H. Mahmood11, J. J. O'Neill11, H. Severini11, C. R. Sun11, F. Wappler11, G. Crawford12, R. Fulton12, D. Fujino12, K. K. Gan12, K. Honscheid12, H. Kagan12, R. Kass12, J. Lee12, M. Sung12, C. White12, A. Wolf12, M. M. Zoeller12, X. Fu13, B. Nemati13, W. R. Ross13, P. Skubic13, M. Wood13, M. Bishai14, J. Fast14, E. Gerndt14, J. W. Hinson14, T. Miao14, D. H. Miller14, M. Modesitt14, E. I. Shibata14, I. P. J. Shipsey14, P. N. Wang14, L. Gibbons15, S. D. Johnson15, Y. Kwon15, S. Roberts15, E. H. Thorndike15, T. E. Coan16, J. Dominick16, V. Fadeyev16, I. Korolkov16, M. Lambrecht16, S. Sanghera16, V. Shelkov16, T. Skwarnicki16, R. Stroynowski16, I. Volobouev16, G. Wei16, M. Artuso17, M. Gao17, M. Goldberg17, D. He17, N. Horwitz17, S. Kopp17, G. C. Moneti17, R. Mountain17, F. Muheim17, Y. Mukhin17, S. Playfer17, S. Stone17, X. Xing17, J. Bartelt18, S. E. Csorna18, V. Jain18, S. Marka18, D. Gibaut19, K. Kinoshita19, P. Pomianowski19, B. Barish20, M. Chadha20, S. Chan20, D. F. Cowen20, G. Eigen20, J. S. Miller20, C. O'Grady20, J. Urheim20, A. J. Weinstein20, F. Würthwein20, D. M. Asner21, M. Athanas21, D. W. Bliss21, W. S. Brower21, G. Masek21, H. P. Paar21, J. Gronberg22, C. M. Korte22, R. Kutschke22, S. Menary22, R. J. Morrison22, S. Nakanishi22, H. N. Nelson22, T. K. Nelson22, C. Qiao22, J. D. Richman22, D. Roberts22, A. Ryd22, H. Tajima22, and M. S. Witherell22 (CLEO Collaboration)
1University of Colorado, Boulder, Colorado 80309-0390 2Cornell University, Ithaca, New York 14853 3University of Florida, Gainesville, Florida 32611 4Harvard University, Cambridge, Massachusetts 02138 5University of Illinois, Champaign-Urbana, Illinois 61801 6Carleton University, Ottawa, Ontario, Canada K1S 5B6 and the Institute of Particle Physics, Montréal, Canada 7McGill University, Montréal, Québec, Canada H3A 2T8 and the Institute of Particle Physics, Montréal, Canada 8Ithaca College, Ithaca, New York 14850 9University of Kansas, Lawrence, Kansas 66045 10University of Minnesota, Minneapolis, Minnesota 55455 11State University of New York at Albany, Albany, New York 12222 12The Ohio State University, Columbus, Ohio 43210 13University of Oklahoma, Norman, Oklahoma 73019 14Purdue University, West Lafayette, Indiana 47907 15University of Rochester, Rochester, New York 14627 16Southern Methodist University, Dallas, Texas 75275 17Syracuse University, Syracuse, New York 13244 18Vanderbilt University, Nashville, Tennessee 37235 19Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061 20California Institute of Technology, Pasadena, California 91125 21University of California, San Diego, La Jolla, California 92093 22University of California, Santa Barbara, California 93106
Received 14 July 1995; published in the issue dated 20 November 1995
We use a data sample of 2.8 × 106 produced τ-pair events, obtained with the CLEO II detector, to measure B(τ-→h-h+h-(π0)ντ), where h refers to either a charged π or K. These branching fractions are measured with samples of lepton-tagged and 3 vs 3 events. We find B(τ-→h-h+h-ντ)=0.0951±0.0007±0.0020 and B(τ-→h-h+h-π0ντ)=0.0423±0.0006±0.0022. We also measure B(τ-→ωh-ντ)=0.0195±0.0007±0.0011.
© 1995 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.75.3809
DOI:
10.1103/PhysRevLett.75.3809
*Permanent address: University of Hawaii at Manoa, Honolulu, HI 96801.
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