PROPERTIES OF BARYONS CONTAINING A HEAVY QUARK IN THE SKYRME MODEL

The properties of baryons containing one heavy quark are studied in the Skyrme model, where they are treated as bound states of a heavy meson with an SU(2) chiral soliton. In the large-N(c) limit, the baryon spectrum is an infinite tower of degenerate states with isospin and spin of the light degrees of freedom I = s(l) = 0, 1, 2,..., and total spin s = \s(l) +/- 1/2\. Exotic states with no quark model analogues in the large-N(c) limit are found to be unbound. The SIGMA(C)-LAMBDA(c) mass difference is computed and found to be in good agreement with experiment. The SIGMA(c)SIGMA(c)pi and SIGMA(c)LAMBDA(c)pi coupling constants are calculated to leading order in N(c) in terms of g(A), the axial coupling constant of the nucleon. We discuss the extension of our results to SU(3) chiral solitons.