For meson-baryon interactions at chiral order Q^3, the 24 counterterms obey 22 large-N_c sum rules, leaving only 2 independent parameters at leading order.
An analogous computation consolida tes our claim about the smallest set of independent terms in the decuplet sector
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Constraints from a large-N_c analysis on meson-baryon interactions at chiral order Q^3
For meson-baryon interactions at chiral order Q^3, the 24 counterterms obey 22 large-N_c sum rules, leaving only 2 independent parameters at leading order.