Meson-Baryon Scattering in QCD2 for any Coupling
John Ellis, Yitzhak Frishman, Marek Karliner
Abstract
Extending earlier work on strong-coupling meson-baryon scattering in QCD2, we derive the effective meson-baryon action for any value of the coupling constant, in the large-Nc limit. Colour degrees of freedom play an important role, and we show that meson-baryon scattering can be formulated as a relativistic potential problem. We distinguish two cases that are non-trivial for unequal quark masses, and present the resulting equations for meson-baryon scattering amplitudes.
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