11 papers
Localization properties of the topological charge density and the low lying eigenmodes of overlap fermions
Y. Koma, E. -M. Ilgenfritz, K. Koller +3
Overlap fermions, which preserve exact chiral symmetry on the lattice, provide a powerful tool for investigating the topological structure of the vacuum. Applying this formulation…
Critical temperature in QCD with two flavors of dynamical quarks
V. G. Bornyakov, M. N. Chernodub, Y. Mori +7
We present results obtained in QCD with two flavors of non-perturbatively improved Wilson fermions at finite temperature on and lattices. We determ…
On the eta-invariant in the 4D chiral U(1) theory
V. Bornyakov, A. Hoferichter, G. Schierholz +1
In contrast to its counterpart in a vector theory, the effective action of a chiral gauge theory may have a non-vanishing imaginary part. It consists of the so-called Chern-Simons…
Quenched QCD near the chiral limit
M. Gockeler, R. Horsley, D. Petters +3
A numerical study of quenched QCD for light quarks is presented using O(a) improved fermions. Particular attention is paid to the possible existence and determination of quenched c…
The Polarized Structure Function g_2: A Lattice Study Revisited
M. Göckeler, R. Horsley, W. Kürzinger +3
A recent lattice calculation of the spin-dependent structure function g_2 is revisited. It has been recognized that the twist-three operator, which gives rise to d_2, mixes non-per…
Lattice Chiral Schwinger Model: Selected Results
V. Bornyakov, G. Schierholz, A. Thimm
We discuss a method for regularizing chiral gauge theories. The idea is to formulate the gauge fields on the lattice, while the fermion determinant is regularized and computed in t…