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

This project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme under grant agreement 833280 (FLAY), and by the Swiss National Science Foundation (SNF) under con-tract 200020_204428. The work of JF has been supported by the Spanish Ministry of Science and Innovation (MCIN) and the Euro-pean Union NextGenerationEU/PRTR under grant IJC2020-043549-I, by the MCIN grant PID2019-106087GB-C22, and by the Junta de Andalucía grants P18-FR-4314 (FEDER) and FQM101.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.European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme under grant agreement 833280 (FLAY)Swiss National Science Foundation (SNF) under con-tract 200020_204428Spanish Ministry of Science and Innovation (MCIN) and the European Union NextGeneration EU/PRTR under grant IJC2020-043549-IMCIN grant PID2019-106087GB-C22Junta de Andalucía grants P18-FR-4314 (FEDER) and FQM10