161 citations · 265 across the 10 of their papers we have counts for
6 papers · 1 filter
Topological susceptibility in two-flavor QCD
Thomas DeGrand, Stefan Schaefer
We compute the topological susceptibility in QCD with two flavors of dynamical fermions using numerical simulation with overlap fermions.
Diquark effects in light baryon correlators from lattice QCD
Thomas DeGrand, Zhaofeng Liu, Stefan Schaefer
We study the role of diquarks in light baryons through point to point baryon correlators. We contrast results from quenched simulations with ones with two flavors of dynamical over…
More about QCD on compact spaces
Thomas DeGrand, Roland Hoffmann, Johannes Najjar
We present some results about spontaneous breaking of global symmetries for four-flavor, three color QCD on compact spaces with two short directions. When the two short directions…
Finite-volume Correction to the Pion Decay Constant in the Epsilon-Regime
Poul H. Damgaard, Thomas DeGrand, Hidenori Fukaya
In the chiral limit of QCD, the pion decay constant F can be extracted from lattice gauge theory by means of a coupling to isospin chemical potential. Here we compute the leading c…
The complete lowest order chiral Lagrangian from a little box
Thomas DeGrand, Stefan Schaefer
We recently performed a pilot study determining the parameters of the leading order chiral Lagrangian from distributions of the eigenvalues of a quenched Dirac operator coupled to…
Parameters of the lowest order chiral Lagrangian from fermion eigenvalues
Thomas DeGrand, Stefan Schaefer
Recent advances in Random Matrix Theory enable one to determine the pseudoscalar decay constant from the response of eigenmodes of quenched fermions to an imaginary isospin chemica…