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The phase structure of a chirally invariant lattice Higgs-Yukawa model
Philipp Gerhold, Karl Jansen
We consider a chirally invariant lattice Higgs-Yukawa model based on the Neuberger overlap operator. As a first step towards the eventual determination of Higgs mass bounds we pres…
The phase structure of a chirally invariant lattice Higgs-Yukawa model - numerical simulations
P. Gerhold, K. Jansen
The phase diagram of a chirally invariant lattice Higgs-Yukawa model is explored by means of numerical simulations. The results revealing a rich phase structure are compared to ana…
Exploring Topology Conserving Gauge Actions for Lattice QCD
W. Bietenholz, K. Jansen, K. -I. Nagai +3
We explore gauge actions for lattice QCD, which are constructed such that the occurrence of small plaquette values is strongly suppressed. By choosing strong bare gauge couplings w…
Comparing iterative methods for overlap and twisted mass fermions
T. Chiarappa, K. Jansen, K. -I. Nagai +6
We present a systematic comparison of various iterative methods to obtain the fermion propagator with both overlap and twisted mass fermions at fixed pion mass in the quenched appr…
Meson Correlation Functions in the epsilon-Regime
T. Chiarappa, W. Bietenholz, K. Jansen +2
We present a numerical pilot study of the meson correlation functions in the epsilon-regime of chiral perturbation theory. Based on simulations with overlap fermions we measured th…
Spectral Properties of the Overlap Dirac Operator in QCD
W. Bietenholz, K. Jansen, S. Shcheredin
We discuss the eigenvalue distribution of the overlap Dirac operator in quenched QCD on lattices of size 8^{4}, 10^{4} and 12^{4} at β= 5.85 and β= 6. We distinguish the topologica…