213 citations · 989 across the 36 of their papers we have counts for
5 papers · 1 filter
Nucleon form factors from a covariant quark core: limits in their description
M. Oettel, R. Alkofer
In treating the relativistic three-quark problem, a dressed-quark propagator parameterization is used which is compatible with recent lattice data and pion observables. Furthermore…
Relativistic Three-Quark Bound States in Separable Two-Quark Approximation
M. Oettel, L. von Smekal, R. Alkofer
Baryons as relativistic bound states in 3-quark correlations are described by an effective Bethe-Salpeter equation when irreducible 3-quark interactions are neglected and separable…
Production Processes as a Tool to Study Parameterizations of Quark Confinement
S. Ahlig, R. Alkofer, C. Fischer +3
We introduce diquarks as separable correlations in the two-quark Green's function to facilitate the description of baryons as relativistic three-quark bound states. These states th…
A Comparison between Relativistic and Semi-Relativistic Treatment in the Diquark-Quark Model
M. Oettel, R. Alkofer
In the diquark-quark model of the nucleon including scalar and axialvector diquarks we compare solutions of the ladder Bethe-Salpeter equation in the instantaneous Salpeter approxi…
Octet and Decuplet Baryons in a Confining and Covariant Diquark-Quark Model
R. Alkofer, S. Ahlig, C. Fischer +2
We treat baryons as bound states of scalar or axialvector diquarks and a constituent quark which interact through quark exchange. We obtain fully four-dimensional wave functions fo…