Model-independent predictions for low energy isoscalar heavy baryon observables in the combined heavy quark and large N-c expansion

Model-independent predictions for excitation energies, semileptonic form fa ctors and electromagnetic decay rates of isoscalar heavy baryons and their low energy excited states are discussed in terms of the combined heavy quar k and large Nc expansion. At leading order, the observables are completely determined in terms of the known excitation energy of the first excited sta te of A(c). At next-to-leading order in the combined expansion all heavy ba ryon observables can be expressed in a model-independent way in terms of tw o experimentally measurable quantities. We list predictions at leading and next-to-leading order. (C) 2001 Elsevier Science B.V. All rights reserved.