51. Measurement of the tau lepton electronic branching fraction
- Author
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H. Yamamoto, M. Worris, D. Z. Besson, C. O'Grady, J. Whitmore, Jungil Lee, M. Daoudi, M. M. Zoeller, R. Wang, Robert K. Kutschke, D. R. Johnson, M. Kelly, W. M. Yao, H. N. Nelson, Shawn W. Henderson, Karl Berkelman, E. H. Thorndike, J. Mevissen, X. Fu, J. Kandaswamy, P. Skubic, S. Menary, N. Hancock, D. L. Hartill, D. Coppage, Ron Poling, J. A. Ernst, J. Masui, Daniel Schmidt, T. Liu, Yoram Rozen, J. G. Smith, Daniela Bortoletto, J. P. Alexander, M. Modesitt, D. Peterson, D. Cinabro, R. Kennett, D. H. Miller, J. Gronberg, M. Sapper, H. P. Paar, R. Fulton, Philip Baringer, S. Ball, S. Schrenk, A. P. Freyberger, Alice Bean, N. Copty, B. Gittelman, J. Urheim, E. Nordberg, F. Muheim, S. Sanghera, R. S. Galik, H. Tajima, Pu Wang, G. S. Ludwig, I. J. Kim, Robert Wilson, J. L. Rodriguez, Darin Acosta, Sheldon Stone, K. Lingel, Paul Avery, C. R. Ng, Glen D. Crawford, M. Sivertz, J. Snow, Frank Würthwein, David Sperka, H. Worden, K. Sparks, R. Ammar, R. Ehrlich, Michael S. Witherell, D. M. Coffman, T. Miao, M.K. Sung, S. J. Patton, N. B. Mistry, S. W. Gray, Ha Lam, J. D. Richman, H. Kagan, B. Nemati, B. K. Heltsley, W. R. Ross, V. Romero, E. I. Shibata, D. Perticone, G. Masek, N. Horwitz, M. Chadha, S. Playfer, M. Lambrecht, D. N. Brown, Marina Artuso, Juliet Ritchie Patterson, I. P. J. Shipsey, K. Honscheid, N. Katayama, D. S. Akerib, G. Eigen, M. Lattery, Janice Nelson, C. D. Jones, R. Davis, John E. Bartelt, G.R. Kalbfleisch, B. C. Barish, M. Battle, A. J.R. Weinstein, M. Procario, Horst Severini, S. Roberts, R. J. Morrison, R. L. Malchow, Christopher G. White, P. S. Drell, Mats A Selen, J. S. Miller, D. G. Cassel, A. J. Sadoff, C. R. Sun, Hubert Kroha, M. Thulasidas, M. Saulnier, P. Wilson, D. L. Kreinick, C. Bebek, W. T. Ford, R. D. Kass, T. E. Browder, Cong Wang, J. Dominick, V. Savinov, John Yelton, B. Geiser, P. L. Wang, M. Lohner, J. J. O'Neill, B. Ong, M. S. Alam, N. Kwak, Z. Egyed, M. Garcia-Sciveres, Vipul Jain, Ryszard Stroynowski, R. L. McIlwain, P. Rankin, A. V. Barnes, Shengfeng Yang, D. F. Cowen, D. Riley, Paul Sheldon, Yuichi Kubota, R. Stephens, S. E. Csorna, F. Butler, K. Kinoshita, P. Rubin, F. Morrow, K. K. Gan, T. Skwarnicki, P. C. Kim, M. Goldberg, G. C. Moneti, S.F. Schaffner, and G. Zhu
- Subjects
Physics ,Nuclear physics ,Particle decay ,Particle physics ,Annihilation ,Luminosity (scattering theory) ,Branching fraction ,Electron–positron annihilation ,General Physics and Astronomy ,High Energy Physics::Experiment ,Elementary particle ,Cornell Electron Storage Ring ,Lepton - Abstract
The tau lepton electron branching fraction has been measured with the CLEO II detector at the Cornell Electron Storage Ring as [ital B][sub [ital e]]=0.1749[plus minus]0.0014[plus minus]0.0022, with the first error statistical and the second systematic. The measurement involves counting electron-positron annihilation events in which both taus decay to electrons, and normalizing to the number of tau-pair decays expected from the measured luminosity. Detected photons in these events constitute a definitive observation of tau decay radiation.
- Published
- 1992