Engineering topics
Alkofer, Reinhard
Publications and source records attributed to Alkofer, Reinhard.
Delta and Omega masses in a three-quark covariant Faddeev approach
We present the solution of the Poincare-covariant Faddeev equation for the {Delta}(1232) and {Omega}(1672) baryons. The covariant structure of the corresponding baryon amplitudes and their decomposition in terms of internal spin and orbital angular momentum is explicitly derived. The interaction kernel is truncated to a rainbow-ladder dressed-gluon exchange such that chiral symmetry and its dynamical breaking are correctly implemented. The resulting physical masses agree reasonably with experiment and their evolution with the pion mass compares favorably with lattice calculations. Evidence for the nonsphericity of the {Delta} resonance is discussed as well.
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS↗