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arXiv · hep-ph/9505327

Constraining new interactions with leptonic tau decays

A. Pich·J. P. Silva
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Abstract

The recent measurements of the Michel parameters in tau decays enable, for the first time, a thorough analysis of the leptonic sector. In general, in models beyond the Standard Model, these parameters will be altered through changes in the W and Z couplings, and/or through interactions mediated by new gauge bosons. We perform a complete, model independent analysis of the constraints imposed by the present data on such boson-mediated interactions, and point out the existence of useful relations among the couplings.

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A. Pich, J. P. Silva. 1995-05-17. Constraining new interactions with leptonic tau decays. https://doi.org/10.1103/physrevd.52.4006

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