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arXiv · hep-ph/0012023

Comparison of Pion-Kaon Scattering in SU(3) Chiral Perturbation Theory and Dispersion Relations

B. Ananthanarayan·P. Büttiker
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Abstract

We establish the framework for the comparison of $πK$ scattering amplitudes from SU(3) chiral perturbation theory with suitable dispersive representations which result from the combination of certain fixed-t dispersion relations with dispersion relations on hyperbolic curves. This allows for predictions for some combinations of low energy constants appearing in higher order calculations of chiral perturbation theory. Using a simple parametrization for the lowest partial waves, first estimates for some combinations are presented.

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B. Ananthanarayan, P. Büttiker. 2001-03-02. Comparison of Pion-Kaon Scattering in SU(3) Chiral Perturbation Theory and Dispersion Relations. https://doi.org/10.1007/s100520100629

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