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"Consistent analysis of the masses and decays of the [70,1-] baryons in the 1/Nc expansion"
E.J. González de Urreta and N.N. Scoccola
Proc. of the "8thInternational Workshop on the Physics of Excited Nucleons" (NSTAR2011), Thomas Jefferson National Accelerator Facility, Newport News, Virginia, USA, May 17-20, 2011.
AIP Conf. Proc., Vol.1432 (2012) 265-268
We apply the 1/Nc expansion of QCD to the description of the properties of the masses and decays 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 these quantities. 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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