Excited Heavy Baryon Spectrum in Large Nc Heavy Quark Effective Theory
Jong-Phil Lee, Chun Liu, H. S. Song
Abstract
L=1 excited heavy baryon masses are analyzed by heavy quark and large Nc expansions. In heavy quark limit, mass is parameterized by Λ-bar and it is expanded further by spin-flavor breaking operators to the zeroth order of 1/Nc. Expanding coefficients will be fixed by more data on the excited baryons in the near future.
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