Flavor hierarchies, flavor anomalies, and Higgs mass from a warped extra dimension

The recent B-meson anomalies are coherently explained at the TeV scale by 4321 gauge models with hierarchical couplings reminiscent of the Standard Model Yukawas. We show that such models arise as the low-energy limit of a complete theory of flavor, based on a warped fifth dimension where each Standard Model family is quasi-localized on a different brane. The Higgs is identified as a pseudo-Nambu-Goldstone boson emerging from the same dynamics responsible for 4321 symmetry breaking. This novel construction unifies quarks and leptons in a flavor non-universal manner, provides a natural description of flavor hierarchies, and addresses the electroweak hierarchy problem. (C) 2022 The Author(s). Published by Elsevier B.V.

Automated summary

The recent anomalies of B mesons can be coherently explained at the TeV scale using 4321 gauge models with hierarchical couplings. These models originate from a complete theory of flavor based on a warped fifth dimension, where each Standard Model family exists on a different brane. This novel construction unifies quarks and leptons in a non-universal flavor manner, providing a natural description of flavor hierarchies and addressing the electroweak hierarchy problem.