Wess-zumino current and the structure of the decay τ- → K-π-K+vτ

T. E. Coan, Y. S. Gao, F. Liu, R. Stroynowski, M. Artuso, C. Boulahouache, S. Blusk, J. Butt, E. Dambasuren, O. Dorjkhaidav, J. Haynes, N. Menaa, R. Mountain, H. Muramatsu, R. Nandakumar, R. Redjimi, R. Sia, T. Skwarnicki, S. Stone, J. C. WangKevin Zhang, A. H. Mahmood, S. E. Csorna, G. Bonvicini, D. Cinabro, M. Dubrovin, A. Bornheim, E. Lipeles, S. P. Pappas, A. Shapiro, A. J. Weinstein, R. A. Briere, G. P. Chen, T. Ferguson, G. Tatishvili, H. Vogel, M. E. Watkins, N. E. Adam, J. P. Alexander, K. Berkelman, V. Boisvert, D. G. Cassel, J. E. Duboscq, K. M. Ecklund, R. Ehrlich, R. S. Galik, L. Gibbons, B. Gittelman, S. W. Gray, D. L. Hartill

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Abstract

The vector (Wess-Zumino) current in τ- → K -π-K+ντ decay was analyzed using data collected with the CLEO III detector at the Cornell Electron Storage Ring. The quantitative contributions to the decay width from the vector and axial vector currents were determined. The quantitative contributions to the total decay rate from the intermediate states were identified within the framework of a model by Kühn and Mirkes. It was shown that the decay is dominated by the vector and axial vector current processes.

Original languageEnglish (US)
Article number232001
Pages (from-to)232001-1-232001-5
JournalPhysical review letters
Volume92
Issue number23
DOIs
StatePublished - Jun 11 2004

Bibliographical note

Funding Information:
We gratefully acknowledge the effort of the CESR staff in providing us with excellent luminosity and running conditions. This work was supported by the National Science Foundation, by the U.S. Department of Energy, by the Research Corporation, and by the Texas Advanced Research Program.

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