329 citations · 806 across the 12 of their papers we have counts for
18 papers
Non-Gaussianities in the topological charge distribution of the SU(3) Yang--Mills theory
Marco Cè, Cristian Consonni, Georg P. Engel +1
We study the topological charge distribution of the SU(3) Yang--Mills theory with high precision in order to be able to detect deviations from Gaussianity. The computation is carri…
Chiral condensate in nf=2 QCD from the Banks-Casher relation
Georg P. Engel
Exploiting the Banks-Casher relation, we present a direct determination of the chiral condensate in two-flavor QCD, computing the mode number of the O(a)-improved Wilson-Dirac oper…
Spectral density of the Dirac operator in two-flavour QCD
Georg P. Engel, Leonardo Giusti, Stefano Lottini +1
We compute the spectral density of the (Hermitean) Dirac operator in Quantum Chromodynamics with two light degenerate quarks near the origin. We use CLS/ALPHA lattices generated wi…
Simulation of QCD with N_f=2+1 flavors of non-perturbatively improved Wilson fermions
Mattia Bruno, Dalibor Djukanovic, Georg P. Engel +11
We describe a new set of gauge configurations generated within the CLS effort. These ensembles have N_f=2+1 flavors of non-perturbatively improved Wilson fermions in the sea with t…
Testing the Witten-Veneziano mechanism with the Yang-Mills gradient flow on the lattice
Marco Cè, Cristian Consonni, Georg P. Engel +1
We present a precise computation of the topological charge distribution in the Yang-Mills theory. It is carried out on the lattice with high statistics Monte Carlo simulati…
Chiral symmetry breaking in QCD Lite
Georg P. Engel, Leonardo Giusti, Stefano Lottini +1
A distinctive feature of the presence of spontaneous chiral symmetry breaking in QCD is the condensation of low modes of the Dirac operator near the origin. The rate of condensatio…
Excited light and strange hadrons from the lattice with two Chirally Improved quarks
Georg P. Engel, C. B. Lang, Daniel Mohler +1
Results for excited light and strange hadrons from the lattice with two flavors of Chirally Improved sea quarks are presented. We perform simulations at several values of the pion…
Chiral condensate from the Banks-Casher relation
Georg P. Engel, Leonardo Giusti, Stefano Lottini +1
We report on our ongoing project of determining the chiral condensate of two-flavor QCD from the Banks-Casher relation. We compute the mode number of the O(a)-improved Wilson-Dirac…
QCD with Two Light Dynamical Chirally Improved Quarks
Georg P. Engel, C. B. Lang, Daniel Mohler +1
Results for the excited meson and baryon spectrum with two flavors of Chirally Improved sea quarks are presented. We simulate several ensembles with pion masses ranging from 250 to…
Low-lying Lambda Baryons from the Lattice
Georg P. Engel, C. B. Lang, Andreas Schäfer
In a lattice QCD calculation with two light dynamical Chirally Improved (CI) quarks we determine ground state and some excited state masses in all four Lambda baryon channels 1/2^\…
QCD with Two Light Dynamical Chirally Improved Quarks: Baryons
Georg P. Engel, C. B. Lang, Daniel Mohler +1
We present a study of baryon ground states and low lying excitations of non-strange and strange baryons. The results are based on seven gauge field ensembles with two dynamical lig…
Excited meson spectroscopy with two chirally improved quarks
Georg P. Engel, C. B. Lang, Markus Limmer +2
The excited isovector meson spectrum is explored using two chirally improved dynamical quarks. Seven ensembles, with pion masses down to \approx 250 MeV are discussed and used for…
QCD with two light dynamical chirally improved quarks: Mesons
Georg P. Engel, C. B. Lang, Markus Limmer +2
We present results for the spectrum of light and strange mesons on configurations with two flavors of mass-degenerate Chirally Improved sea quarks. The calculations are performed o…
Testing trivializing maps in the Hybrid Monte Carlo algorithm
Georg P. Engel, Stefan Schaefer
We test a recent proposal to use approximate trivializing maps in a field theory to speed up Hybrid Monte Carlo simulations. Simulating the CP^{N-1} model, we find a small improvem…
Some results on excited hadrons in 2-flavor QCD
Georg P. Engel, C. B. Lang, Markus Limmer +2
Results of hadron spectroscopy with two dynamical mass-degenerate chirally improved quarks are presented. Three ensembles with pion masses of 322(5), 470(4) and 525(7) MeV, lattice…
Meson and baryon spectrum for QCD with two light dynamical quarks
Georg P. Engel, C. B. Lang, Markus Limmer +2
We present results of meson and baryon spectroscopy using the Chirally Improved Dirac operator on lattices of size 16**3 x 32 with two mass-degenerate light sea quarks. Three ensem…
Baryon axial charges from Chirally Improved fermions - first results
Georg Engel, Christof Gattringer, Leonid Ya. Glozman +4
We present first results from dynamical Chirally Improved (CI) fermion simulations for the axial charge of various hadrons. We work with 16^3x32 lattices of spatial extent 2.…
Excited hadrons in n_f=2 QCD
G. Engel, C. Gattringer, C. B. Lang +3
The chirally improved (CI) fermion action allows us to obtain results for pion masses down to 320 MeV on (in lattice units) comparatively small lattices with physical extent of 2.4…