Unitarity corrections to current algebra versus chiral perturbation calculations in kaon-pion scattering
- 1 May 1996
- journal article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 53 (9) , 4806-4810
- https://doi.org/10.1103/physrevd.53.4806
Abstract
We compare chiral perturbation theory (ChPT) and the unitarization program of current algebra. In this paper, we compare the analytic structure these methods imply for low-energy, kaon-pion scattering and discuss their similarities. We also reproduce in this article a three-parameter fit of experimental kaon-pion S- and P-wave phase shifts with a current algebra quasiunitarized amplitude, published long ago, and we make a comparison with the recent results of ChPT. © 1996 The American Physical Society.Keywords
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