Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1993-10-12
Phys.Rev. D50 (1994) 6863-6871
Physics
High Energy Physics
High Energy Physics - Phenomenology
14 pages, 7 figures (not included, available as *.PS files on request), Latex, Universitaet Karlsruhe preprint TTP93-28
Scientific paper
10.1103/PhysRevD.50.6863
We study the effects of non-vanishing pseudoscalar masses in $\tau$ decays into three mesons. The hadronic matrix elements are obtained by using the generalized structure of the chiral currents with nonvanishing pseudoscalar masses and implementing the low-lying resonances in the different channels. We demonstrate that suitable angular distributions are sensitive to the mass effects in the chiral Langrangian. Numerical results for the rele\-% vant structure functions are given for the decay modes $\tau\rightarrow \nu\pi^-\pi^-\pi^+$, $\nu K^-\pi^-\pi^+$ and $\nu K^-\pi^-K^+$.
Decker Roger
Finkemeier Markus
Mirkes Erwin
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