Speaker
A Hietanen
Description
We study the gauge dynamics of Orthogonal Technicolor on the lattice. It is an SO(4)-gauge theory with two Dirac Wilson fermions transforming according to the vector representation of the gauge group. When used to break the electroweak symmetry dynamically the model leads to a natural dark matter candidate. We determine the lattice phase diagram by locating the strong coupling bulk phase transition line and the zero PCAC mass line. We present results for the spectrum of the theory. In particular, we measure the pseudoscalar, vector, and axial meson masses. The data favour strongly a chiral symmetry breaking scenario over a conformal one.
