Running coupling of the sextet composite Higgs model
High Energy Physics - Lattice
2015-11-17 v1
Abstract
The scale-dependent renormalized coupling of SU(3) gauge theory coupled to Nf = 2 flavors of massless Dirac flavors in the sextet representation is presented in the range 0 < g^2 < 6.5. This range includes the location where the beta-function turns zero in the MSbar scheme to 3-loop and 4-loop approximations, however our non-perturbative result shows a monotonically increasing beta-function. Our lattice calclulations are carried out at several lattice spacings allowing for a controlled continuum extrapolation. We also comment on a recent similar calculation by Hasenfratz tet al.
Cite
@article{arxiv.1511.04890,
title = {Running coupling of the sextet composite Higgs model},
author = {Zoltan Fodor and Kieran Holland and Julius Kuti and Santanu Mondal and Daniel Nogradi and Chik Him Wong},
journal= {arXiv preprint arXiv:1511.04890},
year = {2015}
}
Comments
Proceedings of the 33rd International Symposium on Lattice Field Theory - Lattice 2015 - July 14-18 2015, Kobe, Japan