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Perturbative Asymptotic Safety and Its Phenomenological Applications

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abstract

Asymptotic safety is a remarkable example when fruitful ideas borrowed from statistical physics proliferate to high-energy physics. The concept of asymptotic safety is tightly connected to fixed points (FPs) of the renormalization-group (RG) flow, and generalize well-known asymptotic freedom to a scale-invariant ultraviolet completion with non-vanishing interactions. In this review, we discuss the key ideas behind asymptotic safety, a mechanism for achieving it, and the conditions it imposes on general gauge-Yukawa field theories. We also pay special attention to possible phenomenological applications and provide an overview of standard model (SM) extensions potentially exhibiting asymptotic safety.

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2024 1

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  • Single production of singlet vector-like leptons at the ILC hep-ph · 2024-12-10 · conditional · none · ref 47 · internal anchor

    Projected 5-sigma discovery regions for singlet vector-like leptons at the 1 TeV ILC are derived, covering masses 300-700 GeV and coupling kappa down to about 0.026.