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arXiv · hep-ph/9405429

Nambu mass hierarchies in strings

P. Binetruy·E. Dudas
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Abstract

We show that a recent proposal by Nambu to generate a hierarchy among Yukawa couplings in the standard model may be easily implemented in superstring models. In such models, two of the main ingredients of the Nambu proposal find a natural explanation: minimising with respect to the Yukawas amounts to a minimisation with respect to the underlying moduli fields and a constraint on the Yukawas of the type of the Veltman condition may be attributed to the relaxation process to a phenomenologically viable string vacuum.

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P. Binetruy, E. Dudas. 1994-05-31. Nambu mass hierarchies in strings. https://doi.org/10.1016/0370-2693(94)91338-2

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