Institute for Theoretical Particle Physics (TTP)


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preprints:1995:ttp95-44 [2016/03/17 11:03] (current)
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 +====== TTP95-44 The Scalar Contribution to $\tau\to K\pi\nu_\tau$ ====== 
 +   <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}} {{|PostScript}} [[|arXiv]]   | 
 +| |