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The $[{\bf 70},1^-]$ baryon multiplet in the $1/N_c$ expansion revisited

N. Matagne·Fl. Stancu
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Abstract

The mass splittings of the baryons belonging to the $[{\bf 70},1^-]$-plet are derived by using a simple group theoretical approach to the matrix elements of the mass formula. The basic conclusion is that the first order correction to the baryon masses is of order $1/N_c$ instead of order $N^0_c$, as previously found. The conceptual difference between the ground state and the excited states is therefore removed.

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N. Matagne, Fl. Stancu. 2006-10-31. The $[{\bf 70},1^-]$ baryon multiplet in the $1/N_c$ expansion revisited. https://doi.org/10.1063/1.2714396

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