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Extra Dimensions and Compositeness as a Basis for Hierarchy in Quark Mass Matrices

Bipin R. Desai·Alexander R. Vaucher
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Abstract

Strong gauge and top-Yukawa couplings predicted in the presence of extra dimensions lead to a trickle-down effect of the top-coupling through the renormalization group equations for the quark Yukawa matrices. The matrix elements for the u and d-quarks get progressively smaller as one moves away from the dominant (33)-element revealing a hierarchical pattern for the mass matrices.

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Bipin R. Desai, Alexander R. Vaucher. 2000-09-21. Extra Dimensions and Compositeness as a Basis for Hierarchy in Quark Mass Matrices. https://arxiv.org/abs/hep-ph/0009243

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