Analysis of the [56,2^+] Baryon Masses in the 1/Nc Expansion

Details Analysis of the [56,2^+] Baryon Masses in the 1/Nc Expansion Analysis of the [56,2^+] Baryon Masses in the 1/Nc Expansion

2003-04-16

arxiv.org/abs/hep-ph/0304167v1

Phys.Lett. B564 (2003) 83-89

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages

Scientific paper

10.1016/S0370-2693(03)00700-7

The mass spectrum of the positive parity [56,2^+] baryons is studied in the 1/Nc expansion up to and including O(1/Nc) effects with SU(3) symmetry breaking implemented to first order. A total of eighteen mass relations result, several of which are tested with the available data. The breaking of spin-flavor symmetry is dominated by the hyperfine interactions, while spin-orbit effects are found to be small.

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