439 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of GrazAT211 papers
- Graz University of TechnologyAT46 papers
- Austrian Academy of SciencesAT17 papers
- Centre National de la Recherche ScientifiqueFR16 papers
- University of ViennaAT16 papers
- Institute of High Energy PhysicsCN13 papers
- Justus-Liebig-Universität GießenDE13 papers
- Heidelberg UniversityDE11 papers
- European Southern ObservatoryCL8 papers
- GSI Helmholtz Centre for Heavy Ion ResearchDE7 papers
- Helmholtz-Zentrum Dresden-RossendorfDE7 papers
- Jožef Stefan InstituteSI7 papers
32 papers · 1 filter
Hunting for Stellar Coronal Mass Ejections
Heidi Korhonen, Krisztian Vida, Martin Leitzinger +2
Coronal mass ejections (CMEs) are explosive events that occur basically daily on the Sun. It is thought that these events play a crucial role in the angular momentum and mass loss…
The quark propagator in QCD and QCD
Romain Contant, Markus Q. Huber
QCD-like theories provide testing grounds for truncations of functional equations at non-zero density, since comparisons with lattice results are possible due to the absence of the…
Modulation of elasticity and interactions in charged lipid multibilayers: monovalent salt solutions
Bing-Sui Lu, Santosh Gupta, Michal Belička +2
We have studied the electrostatic screening effect of NaCl solutions on the interactions between anionic lipid bilayers in the fluid lamellar phase using a Poisson-Boltzmann based…
Influence of broken flavor and C and P symmetry on the quark propagator
Axel Maas, Walid Ahmed Mian
Embedding QCD into the standard model breaks various symmetries of QCD explicitly, especially C and P. While these effects are usually perturbatively small, they can be amplified i…
An exploratory study of Yang-Mills three-point functions at non-zero temperature
Markus Q. Huber
Results for three-point functions of Landau gauge Yang-Mills theory at non-vanishing temperature are presented and compared to lattice results. It is found that the three-gluon ver…
Three-point vertex functions in Yang-Mills Theory and QCD in Landau gauge
Adrian L. Blum, Reinhard Alkofer, Markus Q. Huber +1
Solutions for the three-gluon and quark-gluon vertices from Dyson-Schwinger equations and the three-particle irreducible formalism are discussed. Dynamical quarks (``unquenching'')…
Charming quasi-exotic open-flavor mesons
Thomas Hilger, Andreas Krassnigg
We discuss charmed mesons in the covariant Dyson-Schwinger-Bethe-Salpeter-equation approach. In particular we computed masses, leptonic decay constants, and an orbital-angular-mome…
Dyson--Schwinger Approach to Hamiltonian QCD
Davide R. Campagnari, Hugo Reinhardt, Markus Q. Huber +2
Dyson--Schwinger equations are an established, powerful non-perturbative tool for QCD. In the Hamiltonian formulation of a quantum field theory they can be used to perform variatio…
Gauge engineering and propagators
Axel Maas
Beyond perturbation theory gauge-fixing becomes more involved due to the Gribov-Singer ambiguity: The appearance of additional gauge copies requires to define a procedure how to ha…
Quark Propagator with electroweak interactions in the Dyson-Schwinger approach
Walid Ahmed Mian, Axel Maas
Motivated by the non-negligible dynamical backcoupling of the electroweak interactions with the strong interaction during neutron star mergers, we study the effects of the explicit…
Indications of stellar prominence oscillations on fast rotating stars: the cases of HK Aqr and PZ Tel
M. Leitzinger, P. Odert, T. V. Zaqarashvili +3
We present the analysis of six nights of spectroscopic monitoring of two young and fast rotating late-type stars, namely the dMe star HK Aqr and the dG/dK star PZ Tel. On both star…
Verification of high-speed solar wind stream forecasts using operational solar wind models
Martin A. Reiss, Manuela Temmer, Astrid M. Veronig +4
High-speed solar wind streams emanating from coronal holes are frequently impinging on the Earth's magnetosphere causing recurrent, medium-level geomagnetic storm activity. Modelin…
Baryons as relativistic three-quark bound states
Gernot Eichmann, Helios Sanchis-Alepuz, Richard Williams +2
We review the spectrum and electromagnetic properties of baryons described as relativistic three-quark bound states within QCD. The composite nature of baryons results in a rich ex…
On light baryons and their excitations
Gernot Eichmann, Christian S. Fischer, Helios Sanchis-Alepuz
We study ground states and excitations of light octet and decuplet baryons within the framework of Dyson-Schwinger and Faddeev equations. We improve upon similar approaches by expl…
Predicting the singlet vector channel in a partially Higgsed gauge theory
A. Maas, P. Törek
We study a toy version of a grand-unified theory on the lattice: An gauge theory, which experiences a Brout-Englert-Higgs effect due to a single Higgs field in the fundamen…
Sets of minimal distances and characterizations of class groups of Krull monoids
Qinghai Zhong
Let be a Krull monoid with finite class group such that every class contains a prime divisor. Then every non-unit can be written as a finite product of atoms, say…
Search for high-Tc conventional superconductivity at megabar pressures in the lithium-sulfur system
Christian Kokail, Christoph Heil, Lilia Boeri
Motivated by the recent report of superconductivity above 200 K in ultra-dense hydrogen sulfide, we search for high-\tc\ conventional superconductivity in the phase diagram of the…
Factorizations in bounded hereditary Noetherian prime rings
Daniel Smertnig
If is a monoid and with atoms (irreducible elements) , then is a length of , the set of lengths of is denoted by $\mathsf…
Topological insulator on honeycomb lattices and ribbons without inversion symmetry
Robert Triebl, Markus Aichhorn
We study the Kane-Mele-Hubbard model with an additional inversion-symmetry-breaking term. Using the topological Hamiltonian approach, we calculate the invariant of t…
Quasi-exotic open-flavor mesons
T. Hilger, A. Krassnigg
Meson states with exotic quantum numbers arise naturally in a covariant bound-state framework in QCD. We investigate the consequences of shifting quark masses such that the states…
The set of distances in seminormal weakly Krull monoids
Alfred Geroldinger, Qinghai Zhong
The set of distances of a monoid or of a domain is the set of all with the following property: there are irreducible elements $u_1, \ldots, u_k, v_1, \ldots, v_{k…
Leptonic decays of D-wave vector quarkonia
A. Krassnigg, M. Gomez-Rocha, T. Hilger
We give a short and basic introduction to our covariant Dyson-Schwinger-Bethe-Salpeter-equation approach using a rainbow-ladder truncated model of QCD, in which we investigate the…
Investigating magnetic activity in very stable stellar magnetic fields: long-term photometric and spectroscopic study of the fully convective M4 dwarf V374 Peg
K. Vida, L. Kriskovics, K. Oláh +8
The ultrafast-rotating () fully convective single M4 dwarf V374 Peg is a well-known laboratory for studying intense stellar activity in a stable magnet…
Effects of a dressed quark-gluon vertex in vector heavy-light mesons and theory average of B(c)* meson mass
M. Gomez-Rocha, T. Hilger, A. Krassnigg
We extend earlier investigations of heavy-light pseudoscalar mesons to the vector case, using a simple model in the context of the Dyson-Schwinger-Bethe-Salpeter approach. We inves…