109 citations · 665 across the 27 of their papers we have counts for
12 papers · 1 filter
Physics of the gluon mass gap
Mauricio N. Ferreira, Joannis Papavassiliou, Jan M. Pawlowski +1
It has long been known that the gluon propagator in Landau-gauge QCD exhibits a mass gap; and its emergence has been ascribed to the action of the Schwinger mechanism in the gauge…
Towards quantitative precision in functional QCD I
Friederike Ihssen, Jan M. Pawlowski, Franz R. Sattler +1
Functional approaches are the only first principle QCD setup that allow for direct computations at finite density. Predictive power and quantitative reliability of the respective r…
Bound states from the spectral Bethe-Salpeter equation
Gernot Eichmann, Andrés Gómez, Jan Horak +3
We compute the bound state properties of three-dimensional scalar theory in the broken phase. To this end, we extend the recently developed technique of spectral Dyson-Schwin…
Non-perturbative strong coupling at timelike momenta
Jan Horak, Jan M. Pawlowski, Jonas Turnwald +3
We compute the strong coupling constant of Landau gauge QCD in the full complex momentum plane, both directly and via spectral reconstruction. In particular, we consider the Taylor…
Yang-Mills glueball masses from spectral reconstruction
Jan M. Pawlowski, Coralie S. Schneider, Jonas Turnwald +2
We compute masses of the two lightest glueballs from spectral reconstructions of timelike interaction channels of the four-gluon vertex in Landau gauge Yang-Mills theory. The Eucli…
On the quark spectral function in QCD
Jan Horak, Jan M. Pawlowski, Nicolas Wink
We calculate the spectral function of light quark flavours in 2+1 flavour vacuum QCD in the isospin-symmetric approximation. We employ spectral Dyson-Schwinger equations and comput…
Reconstructing QCD Spectral Functions with Gaussian Processes
Jan Horak, Jan M. Pawlowski, José Rodríguez-Quintero +4
We reconstruct ghost and gluon spectral functions in 2+1 flavor QCD with Gaussian process regression. This framework allows us to largely suppress spurious oscillations and other c…
Shocks and quark-meson scatterings at large density
Eduardo Grossi, Friederike J. Ihssen, Jan M. Pawlowski +1
We discuss the phase structure of the two-flavour quark-meson model including quantum, thermal, density and critical fluctuations with the functional renormalisation group. This st…
QMeS-Derivation: Mathematica package for the symbolic derivation of functional equations
Jan M. Pawlowski, Coralie S. Schneider, Nicolas Wink
We present the Mathematica package QMeS-Derivation. It derives symbolic functional equations from a given master equation. The latter include functional renormalisation group equat…
Bound state properties from the Functional Renormalisation Group
Reinhard Alkofer, Axel Maas, Walid Ahmed Mian +4
We discuss an approach for accessing bound state properties, like mass and decay width, of a theory within the functional renormalisation group approach. An important cornerstone i…
Time-evolution of fluctuations as signal of the phase transition dynamics in a QCD-assisted transport approach
M. Bluhm, Y. Jiang, M. Nahrgang +3
For the understanding of fluctuation measurements in heavy-ion collisions it is crucial to develop quantitatively reliable dynamical descriptions which take the non-perturbative na…
Reconstructing the gluon
Anton K. Cyrol, Jan M. Pawlowski, Alexander Rothkopf +1
We reconstruct the gluon spectral function in Landau gauge QCD from numerical data for the gluon propagator. The reconstruction relies on two novel ingredients: Firstly we derive a…