Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- GSI Helmholtz Centre for Heavy Ion ResearchDE1k papers
- Centre National de la Recherche ScientifiqueFR363 papers
- ExtreMe Matter Institute EMMIDE361 papers
- Heidelberg UniversityDE283 papers
- Goethe University FrankfurtDE260 papers
- Michigan State UniversityUS258 papers
- Joint Institute for Nuclear ResearchRU238 papers
- Max Planck Institute for Nuclear PhysicsDE227 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR222 papers
- European Organization for Nuclear ResearchCH212 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR211 papers
- Lawrence Berkeley National LaboratoryUS211 papers
27 papers · 2 filters
Bethe-Salpeter equations: mesons beyond the rainbow-ladder truncation
Richard Williams, Christian S. Fischer
We investigate masses of light mesons from a coupled system of Dyson--Schwinger (DSE) and Bethe--Salpeter equations (BSE), taking into account dominant non-Abelian, sub-leading Abe…
Bethe-Salpeter studies of mesons beyond rainbow-ladder
Richard Williams
We investigate the masses of light mesons from a coupled system of Dyson-Schwinger and Bethe-Salpeter equations. The dominant non-Abelian and sub-leading Abelian contributions to t…
Hadron properties from QCD bound-state equations: A status report
Reinhard Alkofer, Gernot Eichmann, Andreas Krassnigg +1
Employing an approach based on the Green functions of Landau-gauge QCD, some selected results from a calculation of meson and baryon properties are presented. A rainbow-ladder trun…
Covariant solution of the three-quark problem in quantum field theory: the nucleon
G. Eichmann, R. Alkofer, A. Krassnigg +1
We provide details on a recent solution of the nucleon's covariant Faddeev equation in an explicit three-quark approach. The full Poincare-covariant structure of the three-quark am…
Nucleon mass from a covariant three-quark Faddeev equation
G. Eichmann, R. Alkofer, A. Krassnigg +1
We report the first study of the nucleon where the full Poincare-covariant structure of the three-quark amplitude is implemented in the Faddeev equation. We employ an interaction k…
On the efficient computation of high-order derivatives for implicitly defined functions
Mathias Wagner, Andrea Walther, Bernd-Jochen Schaefer
Scientific studies often require the precise calculation of derivatives. In many cases an analytical calculation is not feasible and one resorts to evaluating derivatives numerical…
Volume behaviour of quark condensate, pion mass and decay constant from Dyson-Schwinger equations
Jan Luecker, Christian S. Fischer, Richard Williams
We solve the coupled system of Dyson-Schwinger and Bethe-Salpeter equations for the quark propagator and the pion Bethe-Salpeter amplitude on a finite volume. To this end we use a…
NJL model of homogeneous neutral quark matter: Pseudoscalar diquark condensates revisited
Hannes Basler, Michael Buballa
We use a Nambu-Jona Lasinio type model to investigate the phase diagram of dense quark matter under neutron star conditions in mean field approximation. The model contains selfcons…
Inhomogeneous phases of strongly interacting matter
Michael Buballa, Dominik Nickel
We discuss possible inhomogeneous phases in two regions of the QCD phase diagram: We begin with color superconducting quark matter at moderately high densities, which is an imbalan…
Strangeness Excitation Functions and Transition from Baryonic to Mesonic Freeze-Out
J. Cleymans, H. Oeschler, K. Redlich +1
The sharp peak in the K+/pi+ ratio in relativistic heavy-ion collisions is discussed in the framework of the Statistical Model. In this model a rapid change is expected as the hadr…
Hadron Production in Ultra-relativistic Nuclear Collisions: Quarkyonic Matter and a Triple Point in the Phase Diagram of QCD
A. Andronic, D. Blaschke, P. Braun-Munzinger +9
We argue that features of hadron production in relativistic nuclear collisions, mainly at CERN-SPS energies, may be explained by the existence of three forms of matter: Hadronic Ma…
Nonlocal quark model beyond mean field and QCD phase transition
D. Blaschke, M. Buballa, A. E. Radzhabov +1
A nonlocal chiral quark model is consistently extended beyond mean field using a strict 1/Nc expansion scheme. The parameters of the nonlocal model are refitted to the physical val…
Particle production in p-p collisions at sqrt(s) = 17 GeV within the statistical model
I. Kraus, J. Cleymans, H. Oeschler +1
A thermal-model analysis of particle production of p-p collisions at sqrt(s) = 17 GeV using the latest available data is presented. The sensitivity of model parameters on data sele…
The canonical partition function for relativistic hadron gases
F. Beutler, A. Andronic, P. Braun-Munzinger +2
Particle production in high-energy collisions is often addressed within the framework of the thermal (statistical) model. We present a method to calculate the canonical partition f…
Thermodynamics of (2+1)-flavor QCD: Confronting Models with Lattice Studies
Bernd-Jochen Schaefer, Mathias Wagner, Jochen Wambach
The Polyakov-quark-meson (PQM) model, which combines chiral as well as deconfinement aspects of strongly interacting matter is introduced for three light quark flavors. An analysis…
Quark condensates and the deconfinement transition
Christian S. Fischer, Jens A. Mueller
In this talk we present results on the chiral and the deconfinement transition of quenched QCD from Dyson-Schwinger equations. We determine the ordinary quark condensate signaling…
Chiral and deconfinement transition from Dyson-Schwinger equations
Christian S. Fischer, Jens A. Mueller
We determine the quark condensate and the dressed Polyakov loop from the finite temperature Landau gauge quark propagator evaluated with U(1)-valued boundary conditions in an appro…
Probing the gluon self-interaction in light mesons
Christian S. Fischer, Richard Williams
We investigate masses and decay constants of light mesons from a coupled system of Dyson--Schwinger and Bethe--Salpeter equations. We explicitly take into account dominant non-Abel…
The Functional Renormalization Group and O(4) scaling
B. Stokic, B. Friman, K. Redlich
The critical behavior of the chiral quark-meson model is studied within the Functional Renormalization Group (FRG). We derive the flow equation for the scale dependent thermodynami…
Instability-induced fermion production in quantum field theory
J. Berges, J. Pruschke, A. Rothkopf
Nonequilibrium instabilities are known to lead to exponential amplification of boson occupation numbers for low momentum modes on time scales much shorter than the asymptotic therm…
Deconfinement phase transition and the quark condensate
Christian S. Fischer
We study the dual quark condensate as a signal for the confinement-deconfinement phase transition of QCD. This order parameter for center symmetry has been defined recently by Bilg…
Statistical hadronization of heavy flavor quarks in elementary collisions: successes and failures
A. Andronic, F. Beutler, P. Braun-Munzinger +2
We analyze recently compiled data on the production of open heavy flavor hadrons and quarkonia in e+e- as well as pp and p-nucleus collisions in terms of the statistical hadronizat…
Canonical Statistical Model and hadron production in annihilations
K. Redlich, A. Andronic, F. Beutler +2
We discuss the production of hadrons in collisions at GeV. We address the question wether the particle yields measured in the final states are consistent with…
The strong coupling and its running to four loops in a minimal MOM scheme
Lorenz von Smekal, Kim Maltman, Andre Sternbeck
We introduce the minimal momentum subtraction (MiniMOM) scheme for QCD. Its definition allows the strong coupling to be fixed solely through a determination of the gluon and ghost…