Abstract:We study the light quark-mass dependence of charmed baryon masses as measured by various QCD lattice collaborations. A global fit to such data based on the chiral SU(3) Lagrangian is reported on. All low-energy constants that are relevant at next-to-next-to-next-to-leading order (N 3 LO) are determined from the lattice data sets where constraints from sum rules as they follow from large-N c QCD at subleading order are considered. The expected hierarchy for the low-energy constants in the 1/N c expansion is con… Show more
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