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+ | ====== TTP95-44 The Scalar Contribution to $\tau\to K\pi\nu_\tau$ ====== | ||

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+ | <hidden TTP95-44 The Scalar Contribution to $\tau\to K\pi\nu_\tau$ > We consider the scalar form factor in $\tau \to K\pi \nu_\tau$ | ||

+ | decays. It receives contributions both from the scalar resonance | ||

+ | $K_0^*(1430)$ and from the scalar projection of off-shell vector resonances. | ||

+ | We construct a model for the hadronic current which includes the vector | ||

+ | resonances $K^*(892)$ and $K^*(1410)$ and the scalar resonance | ||

+ | $K_0^*(1430)$. The parameters of the model are fixed | ||

+ | by matching to the $O(p^4)$ predictions of chiral perturbation theory. | ||

+ | Suitable angular correlations of the $K\pi$ system | ||

+ | allow for a model independent separation of the vector and scalar | ||

+ | form factor. Numerical results for the relevant | ||

+ | structure functions are presented. | ||

+ | </hidden> | ||

+ | |**Markus Finkemeier and Erwin Mirkes** | | ||

+ | |** Z. Phys. C 72 619-226 1996 ** | | ||

+ | | {{preprints:1995:ttp95-44.pdf|PDF}} {{preprints:1995:ttp95-44.ps|PostScript}} [[http://arxiv.org/abs/hep-ph/9601275|arXiv]] | | ||

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