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Quark Yukawa pattern from spontaneous breaking of flavour SU(3)3

2015/03/04 by Enrico Nardi, Nardi, Enrico
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Neutrino Physics Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.48550/arxiv.1503.01476

8 pages. Contribution to the proceedings of the 10th Simposio Latinoamericano de Física de Altas Energías (X SILAFAE) - Ruta N, Medellín, Colombia, November 24-28 2014

arxiv created 2015/03/04 · openalex publication_date 2015/03/04 · arxiv updated 2015/03/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

A SU(3)Q × SU(3)u × SU(3)d invariant scalar potential breaking spontaneously the quark flavour symmetry can explain the standard model flavour puzzle. The approximate alignment in flavour space of the vacuum expectation values of the up and down `Yukawa fields' results as a dynamical effect. The observed quark mixing angles, the weak CP violating phase, and hierarchical quark masses can be all reproduced at the cost of introducing additional (auxiliary) scalar multiplets, but without the need of introducing hierarchical parameters.

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