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arXiv · hep-ph/9812239

Fermion masses and symmetry breaking of a U(2) flavour symmetry

Riccardo Barbieri·Leonardo Giusti·Lawrence J. Hall·Andrea Romanino
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Abstract

We show how a specific sequential breaking pattern of a U(2) flavour symmetry occurs automatically in a broad framework. The relative orientation in U(2) space of the spurion fields that breaks the U(2) symmetry is uniquely fixed, thus determining the form of the fermion mass matrices in a predictive way.

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Riccardo Barbieri, Leonardo Giusti, Lawrence J. Hall, Andrea Romanino. 1998-12-03. Fermion masses and symmetry breaking of a U(2) flavour symmetry. https://doi.org/10.1016/s0550-3213(99)00195-9

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