1/Nc Expansion of the Heavy Baryon Isgur-Wise Functions
Chun Liu
Abstract
The 1/Nc expansion of the heavy baryon Isgur-Wise functions is discussed. Because of the contracted SU(2Nf) light quark spin-flavor symmetry, the universality relations among the Isgur-Wise functions of Λb to Λc and Σb(*) to Σc(*) are valid up to the order of 1/Nc2.
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