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"Consistent analysis of the [70,1-] baryon properties in the 1/Nc expansion"
E.J. González de Urreta and N.N. Scoccola
Proc. of the "IX International Conference on Quark Confinement and the Hadron Spectrum" (QCHS IX), Madrid, Spain, August 30-September 3, 2010. Ed. F.J. Llanes-Estrada and J.R. Peláez
AIP Conf. Proc., Vol.1343 (2011) 250-252
We report on the application of the 1/Nc expansion of QCD to the description of the properties of non-strange excited baryons belonging to the [70,1-]-plet. In particular, we present the results of an improved determination of the corresponding mixing angles obtained by performing a simultaneous fit of masses, strong decay widths and e.m. helicity amplitudes. We find θ1 = 0.40(8) and θ3 = 2.81(10). These values are compatible with those determined in previous non-global analyses but have smaller uncertainties.
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