QCD Coupling from a Nonperturbative Determination of the Three-Flavor Λ Parameter
Not Available
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS↗
Engineering topics
Schaefer, Stefan
Publications and source records attributed to Schaefer, Stefan.
Setting the scale for the CLS 2 + 1 flavor ensembles
Here, we present measurements of a combination of the decay constants of the light pseudoscalar mesons and the gradient flow scale t 0 , which allow us to set the scale of the lattices generated by CLS with 2 + 1 flavors of nonperturbatively improved Wilson fermions. Furthermore, we correct for mistunings of the quark masses by measuring the derivatives of observables with respect to the bare quark masses.
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS↗
Algorithms for lattice QCD: progress and challenges
The development of improved algorithms for QCD on the lattice has enabled us to do calculations at small quark masses and get control over the chiral extrapolation. Also finer lattices have become possible, however, a severe slowing down associated with the topology of the gauge fields has been observed. This may prevent simulations of lattices fine enough for controlling the continuum extrapolation. This conference contribution introduces the basic concepts behind contemporary lattice algorithms, the current knowledge about their slowing down towards the continuum and its consequences for future lattice simulations.
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS↗