Structure of the orbital excited $N^{\ast }$ from the Schwinger-Dyson equations

Abstract

We present progress in the evaluation of ${\gamma }^{\ast }N\to N^{\ast }(1535)$ transition form factors in a quark-diquark picture of these baryons. Our analysis is based upon the fully-consistent treatment of a vector $\times$ vector contact interaction, embedded in the interlaced formalism of Schwinger-Dyson and Bethe-Salpeter equations.

9 pages, 3 figures

References in corpus (12)

• Lattice gluodynamics computation of Landau-gauge Green's functions in the deep infrared
• Unitary Isobar Model - MAID2007
• Bridging a gap between continuum-QCD and ab initio predictions of hadron observables
• Dressed-quark anomalous magnetic moments
• Abelian anomaly and neutral pion production
• Nucleon electromagnetic form factors from the covariant Faddeev equation
• Pion form factor from a contact interaction
• Building the Full Fermion-Photon Vertex of QED by Imposing Multiplicative Renormalizability of the Schwinger-Dyson Equations for the Fermion and Photon Propagators
• Parity partners in the baryon resonance spectrum
• Measurements of $ep\to e^{\prime }{\pi }^{+}{\pi }^{-}{p}^{\prime }$ Cross Sections with CLAS at $1.40<W<2.0$ GeV and $2.0<Q^2<5.0$ GeV${}^2$
• Semirelativistic approximation to the ${\gamma }^{\ast }N\to N(1520)$ and ${\gamma }^{\ast }N\to N(1535)$ transition form factors
• Nucleon viewed as a Borromean Bound-State

Cited by in corpus (4)

• Masses of ground-state mesons and baryons, including those with heavy quarks
• Electromagnetic Form Factors and Charge Radii of Pseudoscalar and Scalar Mesons: A Comprehensive Contact Interaction Analysis
• Effect of the Quark-Gluon Vertex on Dynamical Chiral Symmetry Breaking
• Quark anomalous magnetic moment and its effects on the $\rho$ meson properties