Abstract
From a partial wave analysis of the reaction πN→ππN we extract 50 cuoplings and partial widths for N * resonance decaying into Δπ, ϱN and εN. Three different methods of determining the resonance parameters are compared. The signs of the πΔ couplings are found to be consistent with the predictions of l-broken SU(6) w, if one assigns P′ 11(1415), P″ 11(1730) and P 33(1700) to [56, L=0 +] supermultiplets. The signs of the ϱN couplings are inconsistent with SU(6) w symmetry in its l-broken form, but in good agreement with the observed photon couplings.
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