Partial Decay Widths of Negative Parity Baryons in the 1/Nc Expansion

Details Partial Decay Widths of Negative Parity Baryons in the 1/Nc Expansion Partial Decay Widths of Negative Parity Baryons in the 1/Nc Expansion

2011-08-09

arxiv.org/abs/1108.2042v1

Physics

Nuclear Physics

Nuclear Theory

35 pages, 20 tables

Scientific paper

The partial decay widths of lowest lying negative parity baryons belonging to the 70-plet of SU(6) are analyzed in the framework of the 1/Nc expansion The channels considered are those with single pseudo-scalar meson emission. The analysis is carried out to sub-leading order in 1/Nc and to first order in SU(3) symmetry breaking. Conclusions about the magnitude of SU(3) breaking effects along with predictions for some unknown or poorly determined partial decay widths of known resonances are obtained.

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