Francesco Knechtli
(University of Wuppertal)
18/06/2010, 16:40
Applications beyond QCD
We study non-perturbatively five-dimensional gauge theories by means of
the mean-field expansion on the lattice. On the anisotropic torus we show
that a continuum limit can be defined where the anisotropy is a relevant
parameter. The analysis of the static force supports the fact that the
four-dimensional hyperplanes decouple from each other in the continuum limit.
Clear signs of...
Richard Galvez
(Syracuse University)
18/06/2010, 17:00
Applications beyond QCD
We report on the restoration of center symmetry in two flavor large N Yang Mills lattice field theory with dynamical
fermions in the adjoint representation. Numerical evidence is given to show correlators of $P_\mu$ tend to zero in the large N limit. Wilson fermions were employed on a $2^4$ sized lattice for a variety of bare quark masses and coupling strength. We argue that this model may...
Biagio Lucini
(Swansea University)
18/06/2010, 17:20
Applications beyond QCD
Orientifold Planar Equivalence is a powerful analytical tool that allows us to relate certain observables (among which, meson masses) in SU($N$) gauge theory with one (anti-)symmetric Dirac flavour and ${\cal N}=1$ SU($N$) SUSY in the limit in which the number of colours $N$ goes to infinity. This enables us in principle to transcribe SUSY results to QCD, provided that the latter is close (in...
Joel Giedt
(RPI)
18/06/2010, 17:40
Applications beyond QCD
We describe our studies of the lattice Wess-Zumino model with overlap type operators, using GPUs. We have checked that at one loop there is a nonrenormalization of the superpotential, and that in the simulations the simplest Ward identity of the continuum theory is satisfied to a good approximation at weak coupling.
