Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1846827 | Nuclear Physics B - Proceedings Supplements | 2009 | 4 Pages |
Abstract
We review two previous approaches to studying pseudoscalar meson-meson scattering amplitudes to beyond 1 GeV using non-linear and linear chiral Lagrangians. In these approaches we use two different unitarisation techniques - a generalised Breit Wigner prescription and K-matrix unitarization respectively. We report some new findings on K-matrix unitarisation of ππ and πK scattering in the non-linear chiral Lagrangian approach and make some related remarks about the light scalar mesons.
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