Branching fractions of τ Leptons to three charged Hadrons

R. A. Briere*, G. P. Chen, T. Ferguson, G. Tatishvili, H. Vogel, N. E. Adam, J. P. Alexander, K. Berkelman, V. Boisvert, D. G. Cassel, P. S. Drell, J. E. Duboscq, K. M. Ecklund, R. Ehrlich, R. S. Galik, L. Gibbons, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. HeltsleyL. Hsu, C. D. Jones, J. Kandaswamy, D. L. Kreinick, A. Magerkurth, H. Mahlke-Krüger, T. O. Mever, N. B. Mistry, J. R. Patterson, D. Peterson, J. Pivarski, S. J. Richichi, D. Riley, A. J. Sadoff, H. Schwarthoff, M. R. Shepherd, J. G. Thayer, D. Urner, T. Wilksen, A. Warburton, M. Weinberger, S. B. Athar, P. Avery, L. Breva-Newell, V. Potlia, H. Stoeck, J. Yelton, K. Benslama, B. I. Eisenstein, G. D. Gollin, I. Karliner, N. Lowrey, C. Plager, C. Sedlack, M. Selen, J. J. Thaler, J. Williams, K. W. Edwards, D. Besson, X. Zhao, S. Anderson, V. V. Frolov, D. T. Gong, Y. Kubota, S. Z. Li, R. Poling, A. Smith, C. J. Stepaniak, J. Urheim, Z. Metreveli, K. K. Seth, A. Tomaradze, P. Zweber, S. Ahmed, M. S. Alam, J. Ernst, L. Jian, M. Saleem, F. Wappler, K. Arms, E. Eckhart, K. K. Gan, C. Gwon, K. Honscheid, D. Hufnagel, H. Kagan, R. Kass, T. K. Pedlar, E. Von Toerne, M. M. Zoeller, H. Severini, P. Skubic, S. A. Dytman, J. A. Mueller, S. Nam, V. Savinov, J. W. Hinson, J. Lee

*Corresponding author for this work

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Abstract

An overview is given of the improved measurements of branching fractions for τ- → π-π+π-vτ, K-π+π-vτ decays, and an improved upper limit for the phase space suppressed and Cabibbo-suppressed decay τ- → K-K+K-vτ. The decay mode τ- → K-π+π-vτ has a significant contribution to the overall strange spectral function which can provide a direct determination of the strange quark mass and, potentially, precision extraction of the Cabibbo-Kobayashi-Maskawa element Vus. The decay τ- → K-K+π-vτ can proceed via both the vector and axial-vector currents.

Original languageEnglish (US)
Article number181802
Pages (from-to)181802/1-181802/5
JournalPhysical review letters
Volume90
Issue number18
StatePublished - May 9 2003

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Briere, R. A., Chen, G. P., Ferguson, T., Tatishvili, G., Vogel, H., Adam, N. E., Alexander, J. P., Berkelman, K., Boisvert, V., Cassel, D. G., Drell, P. S., Duboscq, J. E., Ecklund, K. M., Ehrlich, R., Galik, R. S., Gibbons, L., Gittelman, B., Gray, S. W., Hartill, D. L., ... Lee, J. (2003). Branching fractions of τ Leptons to three charged Hadrons. Physical review letters, 90(18), 181802/1-181802/5. [181802].