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Article overview
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Delta and Omega masses in a three-quark covariant Faddeev approach | Helios Sanchis-Alepuz
; Gernot Eichmann
; Selym Villalba-Chavez
; Reinhard Alkofer
; | Date: |
1 Sep 2011 | Abstract: | 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
non-sphericity of the Delta-resonance is discussed as well. | Source: | arXiv, 1109.0199 | Services: | Forum | Review | PDF | Favorites |
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