1. Precise measurement of the branching fraction for the decay τ→ντπ
- Author
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R. W. Zdarko, H. N. Nelson, R. Messner, M. W. Gettner, T. Maruyama, Johnson, R. E. Leedy, H. R. Band, R. B. Hurst, M. C. Delfino, R. Prepost, Peruzzi I I, D. E. Wiser, J. R. Smith, Roy Weinstein, J. P. Venuti, W. W. Ash, F. Muller, Piero Giorgio Verdini, Alexander Lincoln Read, Kwong Lau, D. M. Ritson, G. B. Chadwick, D. E. Groom, J. Pyrlik, J. C. Sleeman, von Goeler E, W. T. Ford, J. H. Moromisato, G. P. Goderre, L. J. Moss, M. Piccolo, H. B. Wald, T. L. Lavine, L. J. Rosenberg, W. D. Shambroom, N. Qi, and Tiziano Camporesi
- Subjects
Physics ,Nuclear physics ,Semileptonic decay ,Particle decay ,Particle physics ,Pion ,Meson ,Branching fraction ,Hadron ,Neutrino ,Lepton - Abstract
A sample of events from the process e/sup +/e/sup -/..-->..tau/sup +/tau/sup -/ observed with the MAC detector operating at the SLAC storage ring PEP is used for a precise measurement of B/sub ..pi../, the branching fraction for the decay tau..--> nu../sub tau/..pi... The result B/sub ..pi../ = 0.107 +- 0.005 +- 0.008 is obtained from a sample of events with 798 identified pions.
- Published
- 1987
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