Abstract
We present a phenomenological analysis of the strong couplings of the negative-parity (Formula presented) baryons from the perspective of the large-(Formula presented) expansion. In the large-(Formula presented) limit the mass spectrum and mixing pattern of these states are constrained in a very specific way. The mixing angles are completely determined in this limit, with predictions in good agreement with experiment. In the combined large-(Formula presented) and SU(3) limits the pion couplings of the five negative-parity octets to the ground state baryons are given in terms of only 3 independent couplings. The large-(Formula presented) predictions for the ratios of strong couplings are tested against experimental data.
| Original language | English |
|---|---|
| Pages (from-to) | 5434-5443 |
| Number of pages | 10 |
| Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
| Volume | 57 |
| Issue number | 9 |
| DOIs | |
| State | Published - 1998 |
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