Study of Scalar Mesons in Chiral Lagrangian Frameworks
نویسنده
چکیده
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 also report some preliminary findings on K-matrix unitarisation of the I=J=0 ππ scattering in a non-linear chiral Lagrangian approach and make some remarks about the light scalar mesons.
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تاریخ انتشار 2008