Lattice Studies on 8-Flavor QCD in The Light of Physics Beyond The Standard Model


© 2016.We report the latest results of the LatKMI collaboration on 8-flavor QCD using Monte Carlo simulations of the lattice gauge theory. The subject receives growing interest with regards to physics beyond the Standard Model (BSM). We show that a flavor-singlet scalar meson ($σ$) emerges as one of the lightest bound states and can be a composite Higgs boson with mass 125 GeV. The light $σ$ may be a technidilaton, a pseudo Nambu-Goldstone boson of the approximate scale symmetry, which results from a slowly running (walking) coupling constant associated with an infra-red fixed point. Consistently to this reasoning, a mass anomalous dimension $γ$ is found to be large $γ$ ̃ 1. We discuss the applicability of 8-flavor QCD to the BSM model building.

Nuclear and Particle Physics Proceedings
Enrico Rinaldi
Enrico Rinaldi
Research Scientist

My research interests include artificial intelligence and quantum computing applied to particle physics and quantum many-body systems.