Top-Down Anatomy of Flavor Symmetry Breakdown

Abstract

A top-down approach to the flavor puzzle leads to eclectic flavor groups which include modular and traditional flavor symmetries. Based on examples of semirealistic T2/Z3 orbifold compactifications of heterotic string theory, we discuss the breakdown patterns of the eclectic flavor group via the interplay of vacuum expectation values (vevs) of moduli and flavon fields. This leads to an attractive flavor scheme with various possibilities to obtain "flavor hierarchies" through the alignment of these vevs. Despite the fact that the top-down approach gives strong restrictions for bottom-up flavor model building, it seems to be well suited to provide a realistic flavor pattern for quarks and leptons.

arXiv comment19 pages + citations, 3 figures, 6 tables; v2: statements in introduction clarified, matches version published in PRD

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Cited by in corpus (12)

• The first string-derived eclectic flavor model with realistic phenomenology
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• $A_4$ Modular Flavour Model of Quark Mass Hierarchies close to the Fixed Point $\tau =\omega$
• Quark and lepton hierarchies from $S_4^{\prime }$ modular flavor symmetry
• A minimal modular invariant neutrino model
• Modular flavor symmetry and vector-valued modular forms
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• Froggatt-Nielsen Meets the SMEFT
• Revisiting the Universal Texture Zero of Flavour: a Markov Chain Monte Carlo Analysis
• Flavor's Delight
• Quark-lepton mass relations from modular flavor symmetry
• Modular flavored dark matter