4 papers
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…
Twisted mass fermions: neutral pion masses from disconnected contributions
F. Farchioni, K. Jansen, C. McNeile +12
Twisted mass fermions allow light quarks to be explored but with the consequence that there are mass splittings, such as between the neutral and charged pion. Using a direct calcul…
Flavour Breaking Effects of Wilson twisted mass fermions
K. Jansen, C. McNeile, C. Michael +6
We study the flavour breaking effects appearing in the Wilson twisted mass formulation of lattice QCD. In this quenched study, we focus on the mass splitting between the neutral an…
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…