SU(3), Meson-Baryon Scattering, and Asymptotic Limits

Abstract

The meson-baryon total cross sections and elastic-scattering data in the forward direction are fitted using SU(3)-invariant $t$-channel amplitudes. The analysis implies that (1) $0<~{\sigma }_{\mathrm{tot}}(s\to \infty )<~15.5$ mb, and (2) $-0.11\mathrm{}<~\frac{\mathrm{Re}T(s, t=0)}{\mathrm{Im}T(s, t=0)}<~0$ as $s\to \infty$.