Delta properties in the rainbow-ladder truncation of Dyson-Schwinger equations

Details Delta properties in the rainbow-ladder truncation of Dyson-Schwinger equations Delta properties in the rainbow-ladder truncation of Dyson-Schwinger equations

2010-08-24

arxiv.org/abs/1008.4149v1

Few Body Syst.49:255-261,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 3 figures. Contributed to the International Workshop on Relativistic Description of Two- and Three-body Systems in Nu

Scientific paper

10.1007/s00601-010-0194-5

We present a calculation of the three-quark core contribution to nucleon and Delta-baryon masses and Delta electromagnetic form factors in a Poincare-covariant Faddeev approach. A consistent setup for the dressed-quark propagator, the quark-quark, quark-'diquark' and quark-photon interactions is employed, where all ingredients are solutions of their respective Dyson-Schwinger or Bethe-Salpeter equations in a rainbow-ladder truncation. The resulting Delta electromagnetic form factors concur with present experimental and lattice data.

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