Modular invariant dynamics and fermion mass hierarchies around τ = i

Abstract We discuss fermion mass hierarchies within modular invariant flavour models. We analyse the neighbourhood of the self-dual point τ = i, where modular invariant theories possess a residual Z 4 invariance. In this region the breaking of Z 4 can be fully described by the spurion ϵ ≈ τ − i, tha...

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Bibliographic Details
Main Authors: Ferruccio Feruglio, Valerio Gherardi, Andrea Romanino, Arsenii Titov
Format: Article
Language:English
Published: SpringerOpen 2021-05-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP05(2021)242