539 citations · 2k across the 43 of their papers we have counts for
16 papers · 1 filter
QCD and strongly coupled gauge theories: challenges and perspectives
N. Brambilla, S. Eidelman, P. Foka +46
We highlight the progress, current status, and open challenges of QCD-driven physics, in theory and in experiment. We discuss how the strong interaction is intimately connected to…
The Quark-Gluon Vertex in Landau gauge QCD
Markus Hopfer, Andreas Windisch, Reinhard Alkofer
The coupled system of the quark-gluon vertex and quark propagator Dyson-Schwinger equations (DSEs) is investigated within Landau gauge QCD. The aim is to get a deeper insight into…
Infrared Behavior of 3-Point Functions in Landau Gauge Yang-Mills Theory
Markus Q. Huber, Reinhard Alkofer, Kai Schwenzer
The three-gluon and ghost-gluon vertices of Landau gauge Yang-Mills theory are investigated in the low momentum regime. Due to ghost dominance in the infrared we can use the known…
A dynamical mechanism for quark confinement
Kai Schwenzer
Recently there has been progress in the understanding of the confinement mechanism in Landau gauge QCD. The emerging dynamical description in terms of the underlying gauge dependen…
Confinement and Green functions in Landau-gauge QCD
Reinhard Alkofer, Christian S. Fischer, Markus Q. Huber +2
In a functional approach to QCD the infrared behaviour of Landau gauge Green functions is investigated. Positivity violation for, and thus confinement of, gluons is demonstrated, a…
Infrared Behavior of Three-Point Functions in Landau Gauge Yang-Mills Theory
Reinhard Alkofer, Markus Q. Huber, Kai Schwenzer
Analytic solutions for the three-gluon and ghost-gluon vertices in Landau gauge Yang-Mills theory at low momenta are presented in terms of hypergeometric series. They do not only s…
Aspects of the confinement mechanism in Landau gauge QCD
Kai Schwenzer
I analyze the IR fixed point structure of Landau gauge QCD. Precisely the fixed point with a strong kinematic singularity of the quark-gluon vertex that proved crucial for the rece…
The quark-gluon vertex in Landau gauge QCD: Its role in dynamical chiral symmetry breaking and quark confinement
Reinhard Alkofer, Christian S. Fischer, Felipe J. Llanes-Estrada +1
The infrared behavior of the quark-gluon vertex of quenched Landau gauge QCD is studied by analyzing its Dyson-Schwinger equation. Building on previously obtained results for Green…
Nonperturbative quark-gluon dynamics
Christian S. Fischer, Reinhard Alkofer, Felipe J. Llanes-Estrada +1
We summarize recent results on the nonperturbative quark-gluon interaction in Landau gauge QCD. Our analytical analysis of the infrared behaviour of the quark-gluon vertex reveals…
Dynamically induced scalar quark confinement: A link between chiral symmetry breaking and confinement
Reinhard Alkofer, Christian S. Fischer, Felipe J. Llanes-Estrada +1
Employing functional approaches the infrared behaviour of Landau gauge QCD vertex functions is investigated. Results for the ghost-gluon, three-gluon and quark-gluon vertex functio…
Lower dimensional Yang-Mills theory as a laboratory to study the infrared regime
Reinhard Alkofer, Christian S. Fischer, Markus Q. Huber +1
Lattice studies of the infrared regime of gauge theories are complicated by the required extensive limits, the performed gauge fixing and the demand for high statistics. Using a ge…
What the Infrared Behaviour of QCD Vertex Functions in Landau gauge can tell us about Confinement
R. Alkofer, C. S. Fischer, F. Llanes-Estrada +1
The infrared behaviour of Landau gauge QCD vertex functions is investigated employing a skeleton expansion of the Dyson-Schwinger and Renormalization Group equations. Results for t…
The infrared behavior of Landau gauge Yang-Mills theory in d=2, 3 and 4 dimensions
Markus Q. Huber, Reinhard Alkofer, Christian S. Fischer +1
We develop a general power counting scheme for the infrared limit of Landau gauge SU(N) Yang-Mills theory in arbitrary dimensions. Employing a skeleton expansion, we find that the…
Low Energy Dynamics in Ultradegenerate QCD Matter
Thomas Schafer, Kai Schwenzer
We study the low energy behavior of QCD Green functions in the limit that the baryon chemical potential is much larger than the QCD scale parameter . We show that there is a…
Non-Fermi Liquid Effects in QCD at High Density
Thomas Schaefer, Kai Schwenzer
We study non-Fermi liquid effects due to the exchange of unscreened magnetic gluons in high density QCD by using an effective field theory. A one-loop calculation gives the well kn…
Linking the Quark Meson Model with QCD at High Temperature
Jens Braun, Kai Schwenzer, Hans-Jürgen Pirner
We model the transition of a system of quarks and gluons at high energies to a system of quarks and mesons at low energies in a consistent renormalization group approach. Flow equa…