ar X iv : h ep - p h / 96 06 40 2 v 3 4 N ov 1 99 6 Theory of τ mesonic decays
نویسنده
چکیده
Studies of τ mesonic decays are presented. A mechanism for axial-vector current at low energies is proposed. The VMD is used to treat the vector current. All the meson vertices of both normal parity and abnormal parity (Wess-Zumino-Witten anomaly) are obtained from an effective chiral theory of mesons. a 1 dominance is found in the decay modes of τ lepton: 3π, f (1285)π. Both the ρ and the a 1 meson contribute to the
منابع مشابه
ar X iv : h ep - p h / 97 11 36 4 v 1 1 8 N ov 1 99 7 903 : CP Violation from Charged Higgs Exchange in Hadronic Tau Decays with Unpolarized Beams
CP violating signals in semileptonic τ decays induced by an exotic scalar exchange are studied in a completely model-independent way. These can be observed in decays of unpolarized single τ 's even if their rest frame cannot be reconstructed. No beam polarization is required. The importance of the two-meson channel, in particular the Kπ final state is emphasized.
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