133 citations · 209 across the 3 of their papers we have counts for
7 papers
Bethe-Salpeter equation and a nonperturbative quark-gluon vertex
A. Bender, W. Detmold, C. D. Roberts +1
A Ward-Takahashi identity preserving Bethe-Salpeter kernel can always be calculated explicitly from a dressed-quark-gluon vertex whose diagrammatic content is enumerable. We illust…
Dependence of the Chiral Symmetry Restoration Transition on the Quark Self-Energy Kernel
A. Bender, W. Detmold, A. W. Thomas
The dependence of the dressed quark propagator on the quark chemical potential is investigated in various models based on the Dyson-Schwinger equations. We find that the critical c…
Nucleon form factors and a nonpointlike diquark
J. C. R. Bloch, C. D. Roberts, S. M. Schmidt +2
Nucleon form factors are calculated on q^2 in [0,3] GeV^2 using an Ansatz for the nucleon's Fadde'ev amplitude motivated by quark-diquark solutions of the relativistic Fadde'ev equ…
Deconfinement at finite chemical potential
A. Bender, G. I. Poulis, C. D. Roberts +2
In a confining, renormalisable, Dyson-Schwinger equation model of two-flavour QCD we explore the chemical-potential dependence of the dressed-quark propagator, which provides a mea…
Goldstone Theorem and Diquark Confinement Beyond Rainbow-Ladder Approximation
A. Bender, C. D. Roberts, L. v. Smekal
The quark Dyson-Schwinger equation and meson Bethe-Salpeter equation are studied in a truncation scheme that extends the rainbow-ladder approximation such that, in the chiral limit…
Analytic Structure of the Quark Propagator in a Model with an infrared vanishing Gluon Propagator
Axel Bender, Reinhard Alkofer
The Dyson-Schwinger equation for the quark self energy is solved in rainbow approximation using an infrared (IR) vanishing gluon propagator that introduces an IR mass scale . Th…