72 citations · 83 across the 6 of their papers we have counts for
5 papers · 1 filter
The step scaling function of QCD at negative flavor number
Bernd Gehrmann
As a computationally less costly test case for full QCD, we investigate an SU(3) Yang-Mills theory coupled to a bosonic spinor field. This theory corresponds to QCD with minus two…
Schrödinger functional at N_f=-2
Bernd Gehrmann, Stefan Kurth, Juri Rolf +1
We study the Schrödinger functional coupling for lattice Yang-Mills theory coupled to an improved bosonic spinor field, which corresponds to QCD with minus two light flavors. This…
Schr"odinger functional at negative flavour number
Bernd Gehrmann, Juri Rolf, Stefan Kurth +1
The scaling of the Schr"odinger functional coupling is studied numerically and perturbatively for an SU(3) lattice gauge field coupled to an O(a) improved bosonic spinor field. Thi…
First results on the running coupling in QCD with two massless flavours
Achim Bode, Roberto Frezzotti, Bernd Gehrmann +11
We report on the non-perturbative computation of the running coupling of two-flavour QCD in the Schr"odinger functional scheme. The corresponding Lambda-parameter, which describes…
Efficiencies and optimization of HMC algorithms in pure gauge theory
Bernd Gehrmann, Ulli Wolff
As a prerequisite to dynamical fermion simulations a detailed study of optimal parameters and scaling behavior is conducted for the quenched Schrödinger functional at fixed renorma…