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arXiv · hep-ph/0612267

1/N_c Corrections in Meson-Baryon Scattering

Herry J. Kwee·Richard F. Lebed
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Abstract

Corrections to meson/ground-state baryon scattering amplitudes in the 1/N_c expansion of QCD have previously been shown to be controlled by the t-channel difference |I_t - J_t| of isospin and angular momentum and by the change of hypercharge Y_t. Here we derive the corresponding expressions in the original scattering s channel, allowing for nonzero meson spin and nontrivial SU(3) flavor quantum numbers, and provide explicit examples of the crossing relevant for pi N --> rho N and K N scattering.

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Herry J. Kwee, Richard F. Lebed. 2007-08-21. 1/N_c Corrections in Meson-Baryon Scattering. https://doi.org/10.1088/1126-6708%2F2007%2F10%2F046

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