ar X iv : h ep - p h / 92 08 22 1 v 1 1 1 A ug 1 99 2 Properties of Baryons Containing a Heavy Quark in the Skyrme Model
نویسنده
چکیده
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 Nc limit, the baryon spectrum is an infinite tower of degenerate states with isospin and spin of the light degrees of freedom I = sl = 0, 1, 2, . . ., and total spin s = |sl ± 1/2|. Exotic states with no quark model analogues in the large Nc limit are found to be unbound. The Σc − Λc mass difference is computed and found to be in good agreement with experiment. The Σc Σc π and Σc Λc π coupling constants are calculated to leading order in Nc in terms of gA, the axial coupling constant of the nucleon. We discuss the extension of our results to SU(3) chiral solitons. UCSD/PTH 92-24 hep-ph/9208221 August 1992 1
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