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

Ananthanarayan, B and Büttiker, P (2001) Comparison of Pion-Kaon Scattering in SU(3) Chiral Perturbation Theory and Dispersion Relations. [Preprint]

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Abstract

We establish the framework for the comparison of $\pi K$ 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.

Item Type:	Preprint
Additional Information:	Eur.Phys.J. C19 (2001) 517-528
Keywords:	Chiral Perturbation Theory;Dispersion Relations;pi K Scattering
Department/Centre:	Division of Physical & Mathematical Sciences > Centre for Theoretical Studies
Date Deposited:	30 Jul 2004
Last Modified:	19 Sep 2010 04:13
URI:	http://eprints.iisc.ernet.in/id/eprint/819

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