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"Aspects of excited baryon phenomenology in the 1/Nc expansion of QCD"
E.J. González de Urreta and N.N. Scoccola
Proc. of the "XI Hadron Physics", Maresias, São Paulo, Brazil, March 21-26, 2010. Ed. M. Nielsen, F.S. Navarra and M.E. Bracco
AIP Conf. Proc., Vol.1296 (2010) 201-206
Abstract
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 and strong decay widths. We find θ1=0.47±0.06 and θ3=2.74±0.07. These values are within the range of those determined in previous non.global analyses but have smaller uncertainties.
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