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arXiv · hep-ph/0204044

Orbitally Excited Baryon Spectroscopy in the 1/Nc Expansion

Carlos L. Schat
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Abstract

The discussion of the 70-plet of negative parity baryons illustrates the large Nc QCD approach to orbitally excited baryons. In the case of the l=1 baryons the existing data allows to make numerous predictions to first order in the SU(3) symmetry breaking. New relations between splittings are found that follow from the spin-flavor symmetry breaking. The Lambda(1405) is well described as a three-quark state and a spin-orbit partner of the Lambda(1520). Singlet states with higher orbital angular momentum are briefly discussed.

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Carlos L. Schat. 2002-04-04. Orbitally Excited Baryon Spectroscopy in the 1/Nc Expansion. https://doi.org/10.1142/9789812776914_0017

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