Strong decays of P wave baryons in the $1/N_c$ expansion

Details Strong decays of P wave baryons in the $1/N_c$ expansion Strong decays of P wave baryons in the $1/N_c$ expansion

2005-04-18

arxiv.org/abs/hep-ph/0504150v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages. Contribution to Large Nc QCD 2004 workshop, July 2004, ECT*, Trento, Italy

Scientific paper

The hadronic decays of non-strange negative parity baryons are analyzed in the framework of the 1/Nc expansion. A complete basis of spin-flavor operators for the pseudoscalar meson S and D partial wave amplitudes is established to order 1/Nc and the unknown effective coefficients are determined by fitting to the empirically known widths. A set of relations between widths that result at the leading order, i.e. order Nc^0, is given and tested with the available data.

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