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arXiv · 2512.04270

Powerful Yukawas

Timothy Cohen·Matthew McCullough·Neal Weiner
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Abstract

We introduce a class of models where the masses of the light Standard Model fermions are due to an Effective Field Theory operator that appears beyond dimension-4 in the power counting expansion, resulting in a `Powerful Yukawa'. The effective Yukawa coupling structure is UV-completed using a collective symmetry breaking pattern in the flavour sector, which we dub `Sprouted Symmetry Breaking.' The irreducible signature is an enhanced Higgs coupling to the light Standard Model fermions.

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Timothy Cohen, Matthew McCullough, Neal Weiner. 2025-12-03. Powerful Yukawas. https://arxiv.org/abs/2512.04270

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