Electronic branching ratio of the lepton

R. Ammar, P. Baringer, D. Coppage, R. Davis, M. Kelly, N. Kwak, H. Lam, S. Ro, Y. Kubota, M. Lattery, J. K. Nelson, D. Perticone, R. Poling, S. Schrenk, R. Wang, M. S. Alam, I. J. Kim, B. Nemati, V. Romero, C. R. SunP. N. Wang, M. M. Zoeller, G. Crawford, R. Fulton, K. K. Gan, H. Kagan, R. Kass, J. Lee, R. Malchow, F. Morrow, M. K. Sung, J. Whitmore, P. Wilson, F. Butler, X. Fu, G. Kalbfleisch, M. Lambrecht, P. Skubic, J. Snow, P. L. Wang, D. Bortoletto, D. N. Brown, J. Dominick, R. L. McIlwain, D. H. Miller, M. Modesitt, E. I. Shibata, S. F. Schaffner, I. P.J. Shipsey, M. Battle, J. Ernst, H. Kroha, S. Roberts, K. Sparks, E. H. Thorndike, C. H. Wang, R. Stroynowski, M. Artuso, M. Goldberg, T. Haupt, N. Horwitz, R. Kennett, G. C. Moneti, S. Playfer, Y. Rozen, P. Rubin, T. Skwarnicki, S. Stone, M. Thulasidas, W. M. Yao, G. Zhu, A. V. Barnes, J. Bartelt, S. E. Csorna, V. Jain, T. Letson, M. D. Mestayer, D. S. Akerib, B. Barish, M. Chadha, D. F. Cowen, G. Eigen, J. S. Miller, J. Urheim, A. J. Weinstein, R. J. Morrison, H. Tajima, D. Schmidt, D. Sperka, M. Procario, M. Daoudi, W. T. Ford, D. R. Johnson, K. Lingel, M. Lohner, P. Rankin, J. G. Smith, J. Alexander, C. Bebek, al et al

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6 Scopus citations


Using data accumulated by the CLEO I detector operating at the Cornell Electron Storage Ring, we have measured the ratio R=( e» e ) 1 where " 1 is the decay rate to final states with one charged particle. We find R=0.2231 0.0044 0.0073 where the first error is statistical and the second is systematic. Together with the measured topological one-charged-particle branching fraction, this yields the branching fraction of the lepton to electrons, Be=0.192 0.004 0.006.

Original languageEnglish (US)
Pages (from-to)3976-3985
Number of pages10
JournalPhysical Review D
Issue number11
StatePublished - 1992

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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