https://doi.org/10.1140/epja/i2011-11162-8
Regular Article - Theoretical Physics
Effects of a spin-flavour-dependent interaction on the baryon mass spectrum
Helmholtz Institut für Strahlen- und Kernphysik (Theorie), Universität Bonn, Nußallee 14-16, D-53115, Bonn, Germany
* e-mail: ronniger@hiskp.uni-bonn.de
Received:
16
November
2011
Accepted:
30
November
2011
Published online:
23
December
2011
The effective quark interaction in a relativistically covariant constituent quark model based on the Salpeter equation is supplemented by an extra-phenomenological flavour-dependent force in order to account for some discrepancies mainly in the description of excited negative-parity Δ resonances. Simultaneously an improved description of some other features of the light-flavoured baryon mass spectrum and of some electromagnetic form factors is obtained.
© SIF, Springer-Verlag Berlin Heidelberg, 2011
