Jul 26 – 30, 2021
US/Eastern timezone

Testing dilaton potentials for near conformal gauge theories

Jul 29, 2021, 2:45 PM
Oral presentation Particle physics beyond the Standard Model Particle physics beyond the Standard Model


chik him wong (University of Wuppertal)


In the context of possible dilaton behavior in near conformal gauge theories, it has recently been proposed that a parametrized potential $V_\Delta$, interpolating between two limiting forms, might effectively describe the light particle spectrum. We tested two models, namely SU(3) gauge theory with $N_f = 8$ fermions in the fundamental rep or $N_f = 2$ fermions in the sextet rep, against this hypothesis. The data are found to be consistent with the $V_\Delta$ potential across a broad parametrization range, in contrast to claims by other groups that the $N_f = 8$ model prefers one limit over the other.

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