English

Hierarchies from Higher Flavor Spin

High Energy Physics - Phenomenology 2026-05-18 v1 High Energy Physics - Experiment High Energy Physics - Theory

Abstract

We develop a framework in which Yukawa hierarchies arise from powers of fully anarchic spurions transforming in higher representations of the flavor symmetry group SU(2)n2×SU(3)n3SU(2)^{n_2}\times SU(3)^{n_3}. The core mechanism is the progressive lifting of Yukawa ranks through successive outer products of composite doublets and triplets. We formulate the general construction in detail and build explicit models realizing it. We then investigate whether renormalizable scalar potentials for higher SU(2)SU(2) representations can dynamically generate anarchic spurions with non-vanishing composites. The framework predicts distinctive patterns in flavor-changing neutral currents and potentially observable stochastic gravitational-wave backgrounds.

Cite

@article{arxiv.2605.15267,
  title  = {Hierarchies from Higher Flavor Spin},
  author = {Admir Greljo and Alessandro Valenti},
  journal= {arXiv preprint arXiv:2605.15267},
  year   = {2026}
}

Comments

41 pages + appendices, 10 figures

R2 v1 2026-07-22T07:13:06.714Z