Lattice Artifacts in Strongly Interacting Theories

Viable candidate models of Dynamical Electroweak Symmetry Breaking must display a quasi-conformal scaling behaviour in order to accommodate experimental constraints. The scaling properties of a theory can be studied using finite volume renormalization schemes. From these, the most practical ones are based on the Schrodinger Functional (SF). However, SF schemes suffer from potentially large O(a) effects and special care has to be taken to remove these effects. Here we will compare the standard setup of the SF with Wilson quarks to a setup with chirally rotated boundary conditions (χSF). We study the O(a)-improvement of both setups at 1-loop in perturbation theory, and we prescribe a way of minimizing higher order cut-off effects.