Volume 334 - The 36th Annual International Symposium on Lattice Field Theory (LATTICE2018) - Physics beyond the Standard Model
Fate of a recent conformal fixed point and $\beta$-function in the SU(3) BSM gauge theory with ten massless flavors
Z. Fodor, K. Holland, J. Kuti, D. Nogradi,* C. Him Wong
*corresponding author
Full text: pdf
Published on: 2019 May 29
Abstract
$SU(3)$ gauge theory with $N_f$ fermions in the fundamental representation serves as a theoretical testing ground for possible infrared conformal behavior, which could play a role in BSM composite Higgs models. We use lattice simulations to study the 10-flavor model, for which it has been claimed there is an infrared fixed point in the gauge coupling beta-function. Our results suggest the opposite conclusion, namely we find no beta-function fixed point in the explored range, with qualitative agreement with the 5-loop MSbar prediction. We comment on the inconsistency between
our findings and other studies.
DOI: https://doi.org/10.22323/1.334.0199
Open Access