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
29 papers · 1 filter
Factoriality and class groups of cluster algebras
Ana Garcia Elsener, Philipp Lampe, Daniel Smertnig
Locally acyclic cluster algebras are Krull domains. Hence their factorization theory is determined by their (divisor) class group and the set of classes containing height-1 prime i…
Brout-Englert-Higgs physics: From foundations to phenomenology
Axel Maas
The aim of this review is to describe the field-theoretical foundations of Brout-Englert-Higgs (BEH) physics, and to show how the usual phenomenology arises from it. This requires…
Ponderomotive effects in multiphoton pair production
Christian Kohlfürst, Reinhard Alkofer
The Dirac-Heisenberg-Wigner formalism is employed to investigate electron-positron pair production in cylindrically symmetric but otherwise spatially inhomogeneous, oscillating ele…
280 one-opposition near-Earth asteroids recovered by the EURONEAR with the Isaac Newton Telescope
O. Vaduvescu, L. Hudin, T. Mocnik +80
One-opposition near-Earth asteroids (NEAs) are growing in number, and they must be recovered to prevent loss and mismatch risk, and to improve their orbits, as they are likely to b…
Gluon and ghost correlation functions of 2-color QCD at finite density
Ouraman Hajizadeh, Tamer Boz, Axel Maas +1
2-color QCD, i. e. QCD with the gauge group SU(2), is the simplest non-Abelian gauge theory without sign problem at finite quark density. Therefore its study on the lattice is a be…
Recent developments in bound-state calculations using the Dyson-Schwinger and Bethe-Salpeter equations
Helios Sanchis-Alepuz, Richard Williams
We review in detail modern numerical methods used in the determination and solution of Bethe-Salpeter and Dyson--Schwinger equations. The algorithms and techniques described are ap…
On non-primitively divergent vertices of Yang-Mills theory
Markus Q. Huber
Two correlation functions of Yang-Mills beyond the primitively divergent ones, the two-ghost-two-gluon and the four-ghost vertices, are calculated and their influence on lower vert…
Generation mechanisms of quasi-parallel and quasi-circular flare ribbons in a confined flare
Aaron Hernandez-Perez, Julia K. Thalmann, Astrid M. Veronig +3
We analyze a confined multiple-ribbon M2.1 flare (SOL2015-01-29T11:42) that originated from a fan-spine coronal magnetic field configuration, within active region NOAA 12268. The o…
S- and D-wave vector charmonia
A. Krassnigg, T. Hilger
We revisit earlier calculations of leptonic decay constants of vector charmonia and present and illustrate our decomposition of the corresponding covariant Bethe-Salpeter amplitude…
On the observable spectrum of theories with a Brout-Englert-Higgs effect
Axel Maas, René Sondenheimer, Pascal Törek
The physical, observable spectrum in gauge theories is made up from gauge-invariant states. The Fröhlich-Morchio-Strocchi mechanism allows in the standard model to map these states…
Non-perturbative finite-temperature Yang-Mills theory
Anton K. Cyrol, Mario Mitter, Jan M. Pawlowski +1
We present non-perturbative correlation functions in Landau-gauge Yang-Mills theory at finite temperature. The results are obtained from the functional renormalisation group within…
Electromagnetic transition form factors of baryons in the space-like momentum region
Helios Sanchis-Alepuz, Reinhard Alkofer, Christian S. Fischer
We present results from a calculation of the electromagnetic transition form factors between ground-state octet and decuplet baryons as well as the octet-only to transiti…
Non-perturbative quark, gluon and meson correlators of unquenched QCD
Anton K. Cyrol, Mario Mitter, Jan M. Pawlowski +1
We present non-perturbative first-principle results for quark-, gluon- and meson PI correlation functions of two-flavour Landau-gauge QCD in the vacuum. These correlation functi…
Long sets of lengths with maximal elasticity
Alfred Geroldinger, Qinghai Zhong
We introduce a new invariant describing the structure of sets of lengths in atomic monoids and domains. For an atomic monoid , let be the set of all positive integers…
Structural properties of subadditive families with applications to factorization theory
Salvatore Tringali
Let be a multiplicatively written monoid. Given , we denote by the set of all such that for so…
Phase structure and propagators at nonvanishing temperature for QCD and QCD-like theories
Romain Contant, Markus Q. Huber
We investigate the universality of truncation schemes for Dyson-Schwinger equations developed for quantum chromodynamics in theories which differ from quantum chromodynamics only i…
Arithmetical invariants of local quaternion orders
Nicholas R. Baeth, Daniel Smertnig
Let be a DVR, let be its quotient field, and let be a -order in a quaternion algebra over . The elasticity of is $ρ(R^\bullet) = \sup\{\, k/l : u_…
Maximum entropy formalism for the analytic continuation of matrix-valued Green's functions
Gernot J. Kraberger, Robert Triebl, Manuel Zingl +1
We present a generalization of the maximum entropy method to the analytic continuation of matrix-valued Green's functions. To treat off-diagonal elements correctly based on Bayesia…
Dependence of the propagators on the sampling of Gribov copies inside the first Gribov region of Landau gauge
Axel Maas
Beyond perturbation theory the number of gauge copies drastically increases due to the Gribov-Singer ambiguity. Any way of treating them defines, in principle, a new, non-perturbat…
Mid-infrared interferometric variability of DG Tau: implications for the inner-disk structure
J. Varga, K. É. Gabányi, P. Ábrahám +12
Context. DG Tau is a low-mass pre-main sequence star, whose strongly accreting protoplanetary disk exhibits a so-far enigmatic behavior: its mid-infrared thermal emission is strong…
Commutativity of integral quasi-arithmetic means on measure spaces
Dorota Głazowska, Paolo Leonetti, Janusz Matkowski +1
Let and be finite measure spaces for which there exist and with and $0 < μ(B)…
Elemental Phosphorus: structural and superconducting phase diagram under pressure
José A. Flores-Livas, Antonio Sanna, Alexander P. Drozdov +4
Pressure-induced superconductivity and structural phase transitions in phosphorous (P) are studied by resistivity measurements under pressures up to 170 GPa and fully c…
Mid-infrared characterization of the planetary-mass companion ROXs 42B b
Sebastian Daemgen, Kamen Todorov, Jasmin Silva +10
We present new Keck/NIRC2 35 m infrared photometry of the planetary-mass companion to ROXS 42B in , and for the first time in Brackett- (Br) and in $M_\mathrm…
Ab-initio prediction of the high-pressure phase diagram of BaBiO3
Andriy Smolyanyuk, Lilia Boeri, Cesare Franchini
BaBiO3 is a well-known example of a 3D charge density wavecompound, in which the CDW behavior is induced by charge disproportionation at the Bi site. At ambient pressure, this comp…