Heavy Baryon Masses in Large N_c HQET

Abstract

We argue that in the large N_c HQET, the masses of the s-wave low-spin heavy baryons equal to the heavy quark mass plus proton mass approximately. To the subleading order, the heavy baryon mass 1/N_c expansion not only has the same form, but also has the same coefficients as that of the light baryon. Based on this, numerical analysis is made.Comment: 7 pages, latex, no figures, to appear in Phys. Lett.