42 citations · 80 across the 14 of their papers we have counts for
6 papers · 1 filter
Resummation of Cactus Diagrams in Lattice QCD, to all Orders
H. Panagopoulos, E. Vicari
We show how to perform a resummation, to all orders in perturbation theory, of a certain class of gauge invariant tadpole-like diagrams in Lattice QCD. These diagrams are often lar…
Resummation of Cactus Diagrams in Lattice QCD
H. Panagopoulos, E. Vicari
We show how to perform a resummation, to all orders in perturbation theory, of a certain class of gauge invariant diagrams in Lattice QCD. These diagrams are often largely responsi…
The 3-loop Beta Function of QCD
B. Alles, C. Christou, A. Feo +2
Using the background field technique, we calculate the 3-loop beta function of lattice gauge theories. In the pure gluonic case, we present our results, comparing to those…
Improved lattice operators: the case of the topological charge density
C. Christou, A. Di Giacomo, H. Panagopoulos +1
We analyze the properties of a class of improved lattice topological charge density operators, constructed by a smearing-like procedure. By optimizing the choice of the parameters…
Improving the topological charge density operator on the lattice
C. Christou, A. Di Giacomo, H. Panagopoulos +1
We analyze the properties of a class of improved lattice topological charge density operators, constructed by a smearing-like procedure. By optimizing the choice of the parameters…
Topological charge density renormalization in the presence of dynamical fermions
B. Alles, A. Di Giacomo, H. Panagopoulos +1
We study the renormalization group behaviour of the topological charge density in full QCD on the lattice. We propose a way of extracting the necessary renormalization functions fr…