We study the gauge dynamics of an SO(4)-gauge theory with two Dirac Wilson fermions transforming according to the vector representation of the gauge group. We determine the lattice phase diagram by locating the strong coupling bulk phase transition line and the zero quark mass line. We present results for the spectrum of the theory obtained at a fixed value of the lattice spacing. In particular we measure the pseudoscalar, vector and axial meson masses. The data are consistent with a chiral symmetry breaking scenario rather than a conformal one. When used to break the electroweak symmetry dynamically the model leads to a natural dark matter candidate. © 2013 American Physical Society.
Orthogonal technicolor with isotriplet dark matter on the lattice / Hietanen, A.; Pica, C.; Sannino, F.; Sondergaard, U. I.. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 87:3(2013). [10.1103/PhysRevD.87.034508]
Orthogonal technicolor with isotriplet dark matter on the lattice
Sannino F.;
2013
Abstract
We study the gauge dynamics of an SO(4)-gauge theory with two Dirac Wilson fermions transforming according to the vector representation of the gauge group. We determine the lattice phase diagram by locating the strong coupling bulk phase transition line and the zero quark mass line. We present results for the spectrum of the theory obtained at a fixed value of the lattice spacing. In particular we measure the pseudoscalar, vector and axial meson masses. The data are consistent with a chiral symmetry breaking scenario rather than a conformal one. When used to break the electroweak symmetry dynamically the model leads to a natural dark matter candidate. © 2013 American Physical Society.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
