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arXiv · hep-ph/9408400

Structure Functions and Distributions in Semileptonic Tau Decays

J. H. K"uhn·E. Mirkes
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Abstract

Semileptonic decays of polarized $τ$ leptons are investigated. The most general angular distribution of three meson final states ($τ\rightarrow ππν,\,Kπν,\, πππν,\\ \,Kππν,\, KKπν,\, KKKν,\, ηππν,\,\ldots{}$) is discussed. It is shown, that the most general distribution can be characterized by 16 structure functions, most of which can be determined in currently ongoing high statistics experiments. Emphasis is put on $τ$ decays in $e^{+}e^{-}$ experiments where the neutrino escapes detection and the $τ$ rest frame cannot be reconstructed. The structure of the hadronic matrix elements, based on CVC and chiral lagrangians, is discussed.

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J. H. K"uhn, E. Mirkes. 1994-08-31. Structure Functions and Distributions in Semileptonic Tau Decays. https://arxiv.org/abs/hep-ph/9408400

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