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arXiv · 1511.04890

Running coupling of the sextet composite Higgs model

Zoltan Fodor·Kieran Holland·Julius Kuti·Santanu Mondal·Daniel Nogradi·Chik Him Wong
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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.

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Zoltan Fodor, Kieran Holland, Julius Kuti, Santanu Mondal, Daniel Nogradi, Chik Him Wong. 2015-11-16. Running coupling of the sextet composite Higgs model. https://arxiv.org/abs/1511.04890

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