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Completing the Picture of the Roper Resonance.
We employ a continuum approach to the three valence-quark bound-state problem in relativistic quantum field theory to predict a range of properties of the proton's radial excitation and thereby unify
Structure of the nucleon’s low-lying excitations
A continuum approach to the three valence-quark bound-state problem in quantum field theory is used to perform a comparative study of the four lightest
Collective Perspective on Advances in Dyson—Schwinger Equation QCD
We survey contemporary studies of hadrons and strongly interacting quarks using QCD's Dyson—Schwinger equations, addressing the following aspects: confinement and dynamical chiral symmetry breaking;
Studies of the structure of excited baryons are key factors to the N* program at Jefferson Lab (JLab). Within the first year of data taking with the Hall B CLAS12 detector following the 12 GeV
Survey of Nucleon Electromagnetic Form Factors
A dressed-quark core contribution to nucleon electromagnetic form factors is calculated. It is defined by the solution of a Poincaré covariant Faddeev equation in which dressed-quarks provide the
On the quark-gluon vertex and quark-ghost kernel: combining lattice simulations with Dyson-Schwinger equations
A bstractWe investigate the dressed quark-gluon vertex combining two established non-perturbative approaches to QCD: the Dyson-Schwinger equation (DSE) for the quark propagator and
Paris N N ¯ potential constrained by recent antiprotonic-atom data and n ¯ p total cross sections
We report on an updated Paris NN optical potential. The long- and intermediate-range real parts are obtained by G-parity transformation of the Paris NN potential based on a theoretical
On the structure of the X(1835) baryonium
The measurement by the BES Collaboration of J/{psi} {yields} {gamma}p{bar p} decays indicates an enhancement at the p{bar p} threshold. In another experiment, BES finds a peak in the invariant mass
Pion and kaon elastic form factors in a refined light-front model
Within the framework of light-front field theory, we reassess the electromagnetic form factors of the pion and kaon. Comparison with experiment is made for the full range of momentum transfer, q^2<0,
Charmed mesons with a symmetry-preserving contact interaction
A symmetry-preserving treatment of a vector-vector contact interaction is used to study charmed heavy-light mesons. The contact interaction is a representation of nonperturbative kernels used in