Measurement of the tau lifetime
Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields1987Vol. 36(3), pp. 690–701
C. Bebek, K. Berkelman, L. Bezrukov, D. G. Cassel, T. Copie, R. DeSalvo, J. W. DeWire, R. Ehrlich, R. S. Galik, M. G. D. Gilchriese, B. Gittelman, S. W. Gray, A. M. Halling, D. L. Hartill, B. K. Heltsley, S. Holzner, J. Kandaswamy, R. Kowalewski, D. L. Kreinick, Y. Kubota, N. B. Mistry, J. Mueller, R. Namjoshi, E. Nordberg, D. Perticone, D. Peterson, M. Pisharody, K. F. Read, D. Riley, A. Silverman, S. Stone, A. J. Sadoff, P. Avery, D. Besson, L. Garren, T. J. V. Bowcock, K. Kinoshita, F. M. Pipkin, M. Procario, Richard Wilson, J. Wolinski, D. Xiao, T. Gentile, Peter J. Haas, M. Hempstead, T. Jensen, H. Kagan, R. Kass, S. Behrends, Jan M. Guida, J. A. Guida, F. Morrow, R. Poling, E. H. Thorndike, P. Tipton, M. S. Alam, N. Katayama, I. J. Kim, W. C. Li, X. C. Lou, C. R. Sun, V. Tanikella, D. Bortoletto, A. Chen, Martin W. Goldberg, R. Holmes, N. Horwitz, A. Jawahery, P. Lubrano, G. C. Moneti, V. Sharma, I. P. J. Shipsey, P. Thoma, S. E. Csorna, M. D. Mestayer, R. S. Panvini, G. B. Word, A. Bean, G. J. Bobbink, I. Brock, A. Engler, T. Ferguson, R.W. Kraemer, C. Rippich, H. Vogel
Abstract
Using a high-statistics sample of \ensuremath{\tau}-pair events collected with the CLEO detector operating at the Cornell Electron Storage Ring at \ensuremath{\surd}s =10.5 GeV, we have measured ${\ensuremath{\tau}}_{\ensuremath{\tau}}$=(3.25\ifmmode\pm\else\textpm\fi{}0.14\ifmmode\pm\else\textpm\fi{}0.18) \ifmmode\times\else\texttimes\fi{}${10}^{\mathrm{\ensuremath{-}}13}$ sec. The experimental method for determining the lifetime includes both the reconstruction of decay vertices and the impact-parameter technique.
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