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arXiv · 1208.2568

Chiral dynamics with vector fields: an application to $ππ$ and $πK$ scattering

I. V. Danilkin·M. F. M. Lutz
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Abstract

A theoretical study of Goldstone boson scattering based on the chiral Lagrangian with vector meson fields is presented. In application of a recently developed novel approach we extrapolate subthreshold partial-wave amplitudes into the physical region. The constraints set by micro-causality and coupled-channel unitarity are kept rigourously. It is shown that already the leading order subthreshold amplitudes lead to s- and p-wave $ππ$ and $πK$ phase shifts are in agreement with the experimental data up to about 1.2 GeV.

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I. V. Danilkin, M. F. M. Lutz. 2012-08-13. Chiral dynamics with vector fields: an application to $ππ$ and $πK$ scattering. https://doi.org/10.1051/epjconf%2F20123708007

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